Initial revision

113 files changed, 24504 insertions, 0 deletions

diff --git a/.cvsignore b/.cvsignore
new file mode 100644
index 000000000..a1a4c366c
--- /dev/null
+++ b/.cvsignore
@@ -0,0 +1 @@
+busybox
diff --git a/Changelog b/Changelog
new file mode 100644
index 000000000..e00f7281e
--- /dev/null
+++ b/Changelog
@@ -0,0 +1,8 @@
+0.27
+	Mount now supports -a, and -t auto.
+	Mount now updates mtab correctly for 'ro'.
+	More checks screen rows size, outputs bytes percentage.
+	Printf added as module.
+0.26
+	Touch now creates files. -c option for no create.
+	
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000..cf73b2c33
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,24 @@
+Original release code (unless otherwise noted)
+Copyright 1995, 1996 Bruce Perens <bruce@pixar.com>
+
+mkswap
+Copyright 1991 Linus Torvalds
+
+tiny-ls(ls)
+Copyright 1996 Brian Candler <B.Candler@pobox.com>
+
+tarcat, loadkmap, various fixes, Debian maintenance
+Copyright 1998 Enrique Zanardi <ezanardi@ull.es>
+
+more(v2), makedevs, dutmp, modularization, auto links file, 
+various fixes, Linux Router Project maintenance
+Copyright 1998 Dave Cinege <dcinege@psychosis.com>	
+
+mini-gzip(gzip), mini-netcat(mnc)
+Copyright 1998 Charles P. Wright <cpwright@villagenet.com>
+
+
+Please see the top of the source files for more precise indivigual 
+copyright and license info.
+
+This program suite may be distributed under the GNU General Public License.
diff --git a/Makefile b/Makefile
new file mode 100644
index 000000000..bef25a3ae
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,38 @@
+
+VERSION=0.29alpha1
+BUILDTIME=$(shell date "+%Y%m%d-%H%M")
+
+#This will choke on a non-debian system
+ARCH=`uname -m | sed -e 's/i.86/i386/' | sed -e 's/sparc.*/sparc/'`
+
+
+STRIP= strip --remove-section=.note --remove-section=.comment busybox
+LDFLAGS= -s
+
+# -D_GNU_SOURCE is needed because environ is used in init.c
+CFLAGS=-Wall -O2 -fomit-frame-pointer -fno-builtin -D_GNU_SOURCE
+# For debugging only
+#CFLAGS=-Wall -g -D_GNU_SOURCE
+LIBRARIES=-lc
+OBJECTS=$(shell ./busybox.obj) utility.o
+
+CFLAGS+= -DBB_VER='"$(VERSION)"'
+CFLAGS+= -DBB_BT='"$(BUILDTIME)"'
+
+#all: busybox links
+all: busybox
+
+busybox: $(OBJECTS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o busybox $(OBJECTS) $(LIBRARIES)
+	#$(STRIP)
+
+links:
+	- ./busybox.mkll | sort >busybox.links
+	
+clean:
+	- rm -f busybox busybox.links *~ *.o 
+
+distclean: clean
+	- rm -f busybox
+
+force:
diff --git a/README b/README
new file mode 100644
index 000000000..7d4e0f304
--- /dev/null
+++ b/README
@@ -0,0 +1,27 @@
+Please see the LICENSE file for copyright information.
+
+Busybox is a multicall binary used to provide a minimal subset of 
+POSIX style commands and specialized functions.
+
+It is geared toward 'mini-systems' like boot floppies. Specifically
+it is used in the Debian Rescue/Install system (which caused the 
+original busybox to be made), the Linux Router Project, and others.
+
+As of version 0.20 there is a version number. : )
+Also as of version 0.20, BB is modularized to allow an easy build of
+only the BB parts you need, to reduce binary size.
+
+Edit the file busybox.def.h and comment out the parts you do not need
+using C++ comments (//)
+
+After the build is complete a busybox.links file is generated to allow
+you to easily make the sym/hard links to the busybox binary.
+
+Note the modular system is Makefile based, and purposly very
+simplistic. It does no dependency checking. That is left for you
+to figure out by trial and error.
+
+Please feed patches back to:
+	Dave Cinege <dcinege@psychosis.com>
+and:
+	Enrique Zanardi <ezanardi@ull.es>
diff --git a/applets/busybox.c b/applets/busybox.c
new file mode 100644
index 000000000..b7b2b6009
--- /dev/null
+++ b/applets/busybox.c
@@ -0,0 +1,230 @@
+#include "internal.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+static int been_there_done_that = 0;
+
+static const struct Applet applets[] = {
+
+#ifdef BB_BUSYBOX		//bin
+    {"busybox", busybox_main},
+#endif
+#ifdef BB_BLOCK_DEVICE		//sbin
+    {"block_device", block_device_main},
+#endif
+#ifdef BB_CAT			//bin
+    {"cat", cat_more_main},
+#endif
+#ifdef BB_CHGRP			//bin
+    {"chgrp", chgrp_main},
+#endif
+#ifdef BB_CHMOD			//bin
+    {"chmod", chmod_main},
+#endif
+#ifdef BB_CHOWN			//bin
+    {"chown", chown_main},
+#endif
+#ifdef BB_CHROOT		//sbin
+    {"chroot", chroot_main},
+#endif
+#ifdef BB_CLEAR			//usr/bin
+    {"clear", clear_main},
+#endif
+#ifdef BB_CP			//bin
+    {"cp", dyadic_main},
+#endif
+#ifdef BB_DATE			//bin
+    {"date", date_main},
+#endif
+#ifdef BB_DD			//bin
+    {"dd", dd_main},
+#endif
+#ifdef BB_DF			//bin
+    {"df", df_main},
+#endif
+#ifdef BB_DMESG			//bin
+    {"dmesg", dmesg_main},
+#endif
+#ifdef BB_DUTMP			//usr/sbin
+    {"dutmp", cat_more_main},
+#endif
+#ifdef BB_FALSE			//bin
+    {"false", false_main},
+#endif
+#ifdef BB_FDFLUSH		//bin
+    {"fdflush", monadic_main},
+#endif
+#ifdef BB_FIND			//usr/bin
+    {"find", find_main},
+#endif
+#ifdef BB_GREP			//bin
+    {"grep", grep_main},
+#endif
+#ifdef BB_HALT			//sbin
+    {"halt", halt_main},
+#endif
+#ifdef BB_INIT			//sbin
+    {"init", init_main},
+#endif
+#ifdef BB_KILL			//bin
+    {"kill", kill_main},
+#endif
+#ifdef BB_LENGTH		//usr/bin
+    {"length", length_main},
+#endif
+#ifdef BB_LN			//bin
+    {"ln", dyadic_main},
+#endif
+#ifdef BB_LOADKMAP		//sbin
+    {"loadkmap", loadkmap_main},
+#endif
+#ifdef BB_LOSETUP		//sbin
+    {"losetup", losetup_main},
+#endif
+#ifdef BB_LS			//bin
+    {"ls", ls_main},
+#endif
+#ifdef BB_MAKEDEVS		//sbin
+    {"makedevs", makedevs_main},
+#endif
+#ifdef BB_MATH			//usr/bin
+    {"math", math_main},
+#endif
+#ifdef BB_MKDIR			//bin
+    {"mkdir", monadic_main},
+#endif
+#ifdef BB_MKNOD			//bin
+    {"mknod", mknod_main},
+#endif
+#ifdef BB_MKSWAP		//sbin
+    {"mkswap", mkswap_main},
+#endif
+#ifdef BB_MNC			//usr/bin
+    {"mnc", mnc_main},
+#endif
+#ifdef BB_MORE			//bin
+    {"more", cat_more_main},
+#endif
+#ifdef BB_MOUNT			//bin
+    {"mount", mount_main},
+#endif
+#ifdef BB_MT			//bin
+    {"mt", mt_main},
+#endif
+#ifdef BB_MV			//bin
+    {"mv", dyadic_main},
+#endif
+#ifdef BB_PRINTF		//usr/bin
+    {"printf", printf_main},
+#endif
+#ifdef BB_PWD			//bin
+    {"pwd", pwd_main},
+#endif
+#ifdef BB_REBOOT		//sbin
+    {"reboot", reboot_main},
+#endif
+#ifdef BB_RM			//bin
+    {"rm", rm_main},
+#endif
+#ifdef BB_RMDIR			//bin
+    {"rmdir", monadic_main},
+#endif
+#ifdef BB_SLEEP			//bin
+    {"sleep", sleep_main},
+#endif
+#ifdef BB_TAR			//bin
+    {"tar", tar_main},
+#endif
+#ifdef BB_SWAPOFF		//sbin
+    {"swapoff", monadic_main},
+#endif
+#ifdef BB_SWAPON		//sbin
+    {"swapon", monadic_main},
+#endif
+#ifdef BB_SYNC			//bin
+    {"sync", sync_main},
+#endif
+#ifdef BB_TOUCH			//usr/bin
+    {"touch", monadic_main},
+#endif
+#ifdef BB_TRUE			//bin
+    {"true", true_main},
+#endif
+#ifdef BB_UMOUNT		//bin
+    {"umount", umount_main},
+#endif
+#ifdef BB_UPDATE		//sbin
+    {"update", update_main},
+#endif
+#ifdef BB_ZCAT			//bin
+    {"zcat", zcat_main},
+    {"gunzip", zcat_main},
+#endif
+#ifdef BB_GZIP			//bin
+    {"gzip", gzip_main},
+#endif
+    {0}
+};
+
+int main(int argc, char **argv)
+{
+    char *s = argv[0];
+    char *name = argv[0];
+    const struct Applet *a = applets;
+
+    while (*s != '\0') {
+	if (*s++ == '/')
+	    name = s;
+    }
+
+    while (a->name != 0) {
+	if (strcmp(name, a->name) == 0) {
+	    int status;
+
+	    status = ((*(a->main)) (argc, argv));
+	    if (status < 0) {
+		fprintf(stderr, "%s: %s\n", a->name, strerror(errno));
+	    }
+	    fprintf(stderr, "\n");
+	    exit(status);
+	}
+	a++;
+    }
+    return (busybox_main(argc, argv));
+}
+
+
+int busybox_main(int argc, char **argv)
+{
+    argc--;
+    argv++;
+
+    /* If we've already been here once, exit now */
+    if (been_there_done_that == 1)
+	return -1;
+    been_there_done_that = 1;
+
+    if (argc < 1) {
+	const struct Applet *a = applets;
+	fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n",
+		BB_VER, BB_BT);
+	fprintf(stderr, "Usage: busybox [function] [arguments]...\n");
+	fprintf(stderr,
+		"\n\tMost people will create a symlink to busybox for each\n"
+		"\tfunction name, and busybox will act like whatever you invoke it as.\n");
+	fprintf(stderr, "\nCurrently defined functions:\n");
+
+	if (a->name != 0) {
+	    fprintf(stderr, "%s", a->name);
+	    a++;
+	}
+	while (a->name != 0) {
+	    fprintf(stderr, ", %s", a->name);
+	    a++;
+	}
+	fprintf(stderr, "\n\n");
+	exit(-1);
+    } else
+	return (main(argc, argv));
+}
diff --git a/applets/busybox.mkll b/applets/busybox.mkll
new file mode 100755
index 000000000..e43a1ccb0
--- /dev/null
+++ b/applets/busybox.mkll
@@ -0,0 +1,17 @@
+#!/bin/sh
+#Make busybox links list file
+
+DF="busybox.def.h"
+MF="main.c"
+
+LIST="$(sed -n '/^#define/{s/^#define //p;}' $DF)"
+
+	for def in ${LIST}; do
+			
+		set -- $(sed -n '/^#ifdef '$def'[ +|	+].*/,/^#endif/{s/.*\/\///p; /^{ /{ s/^{ "//; s/",.*$//p;}; }' $MF)
+		path=$1; shift
+		
+			for n in $@; do
+				echo "$path/$n"
+			done
+	done
diff --git a/archival/gzip.c b/archival/gzip.c
new file mode 100644
index 000000000..6fd2e3971
--- /dev/null
+++ b/archival/gzip.c
@@ -0,0 +1,3231 @@
+/* gzip.c -- this is a stripped down version of gzip I put into busybox, it does
+ * only standard in to standard out with -9 compression.  It also requires the
+ * zcat module for some important functions.  
+ *
+ * Charles P. Wright <cpw@unix.asb.com>
+ */
+#include "internal.h"
+#ifdef BB_GZIP
+
+#ifndef BB_ZCAT
+error: you need zcat to have gzip support!
+#endif
+
+const char gzip_usage[] = "gzip\nignores all command line arguments\ncompress stdin to stdout with -9 compression\n";
+
+/* gzip.h -- common declarations for all gzip modules
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if defined(__STDC__) || defined(PROTO)
+#  define OF(args)  args
+#else
+#  define OF(args)  ()
+#endif
+
+#ifdef __STDC__
+   typedef void *voidp;
+#else
+   typedef char *voidp;
+#endif
+
+/* I don't like nested includes, but the string and io functions are used
+ * too often
+ */
+#include <stdio.h>
+#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
+#  include <string.h>
+#  if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
+#    include <memory.h>
+#  endif
+#  define memzero(s, n)     memset ((voidp)(s), 0, (n))
+#else
+#  include <strings.h>
+#  define strchr            index 
+#  define strrchr           rindex
+#  define memcpy(d, s, n)   bcopy((s), (d), (n)) 
+#  define memcmp(s1, s2, n) bcmp((s1), (s2), (n)) 
+#  define memzero(s, n)     bzero((s), (n))
+#endif
+
+#ifndef RETSIGTYPE
+#  define RETSIGTYPE void
+#endif
+
+#define local static
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+/* Return codes from gzip */
+#define OK      0
+#define ERROR   1
+#define WARNING 2
+
+/* Compression methods (see algorithm.doc) */
+#define STORED      0
+#define COMPRESSED  1
+#define PACKED      2
+#define LZHED       3
+/* methods 4 to 7 reserved */
+#define DEFLATED    8
+#define MAX_METHODS 9
+extern int method;         /* compression method */
+
+/* To save memory for 16 bit systems, some arrays are overlaid between
+ * the various modules:
+ * deflate:  prev+head   window      d_buf  l_buf  outbuf
+ * unlzw:    tab_prefix  tab_suffix  stack  inbuf  outbuf
+ * inflate:              window             inbuf
+ * unpack:               window             inbuf  prefix_len
+ * unlzh:    left+right  window      c_table inbuf c_len
+ * For compression, input is done in window[]. For decompression, output
+ * is done in window except for unlzw.
+ */
+
+#ifndef	INBUFSIZ
+#  ifdef SMALL_MEM
+#    define INBUFSIZ  0x2000  /* input buffer size */
+#  else
+#    define INBUFSIZ  0x8000  /* input buffer size */
+#  endif
+#endif
+#define INBUF_EXTRA  64     /* required by unlzw() */
+
+#ifndef	OUTBUFSIZ
+#  ifdef SMALL_MEM
+#    define OUTBUFSIZ   8192  /* output buffer size */
+#  else
+#    define OUTBUFSIZ  16384  /* output buffer size */
+#  endif
+#endif
+#define OUTBUF_EXTRA 2048   /* required by unlzw() */
+
+#ifndef DIST_BUFSIZE
+#  ifdef SMALL_MEM
+#    define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
+#  else
+#    define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
+#  endif
+#endif
+
+#ifdef DYN_ALLOC
+#  define EXTERN(type, array)  extern type * near array
+#  define DECLARE(type, array, size)  type * near array
+#  define ALLOC(type, array, size) { \
+      array = (type*)fcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
+      if (array == NULL) error("insufficient memory"); \
+   }
+#  define FREE(array) {if (array != NULL) fcfree(array), array=NULL;}
+#else
+#  define EXTERN(type, array)  extern type array[]
+#  define DECLARE(type, array, size)  type array[size]
+#  define ALLOC(type, array, size)
+#  define FREE(array)
+#endif
+
+EXTERN(uch, inbuf);          /* input buffer */
+EXTERN(uch, outbuf);         /* output buffer */
+EXTERN(ush, d_buf);          /* buffer for distances, see trees.c */
+EXTERN(uch, window);         /* Sliding window and suffix table (unlzw) */
+#define tab_suffix window
+#ifndef MAXSEG_64K
+#  define tab_prefix prev    /* hash link (see deflate.c) */
+#  define head (prev+WSIZE)  /* hash head (see deflate.c) */
+   EXTERN(ush, tab_prefix);  /* prefix code (see unlzw.c) */
+#else
+#  define tab_prefix0 prev
+#  define head tab_prefix1
+   EXTERN(ush, tab_prefix0); /* prefix for even codes */
+   EXTERN(ush, tab_prefix1); /* prefix for odd  codes */
+#endif
+
+extern unsigned insize; /* valid bytes in inbuf */
+extern unsigned inptr;  /* index of next byte to be processed in inbuf */
+extern unsigned outcnt; /* bytes in output buffer */
+
+extern long bytes_in;   /* number of input bytes */
+extern long bytes_out;  /* number of output bytes */
+extern long header_bytes;/* number of bytes in gzip header */
+
+#define isize bytes_in
+/* for compatibility with old zip sources (to be cleaned) */
+
+extern int  ifd;        /* input file descriptor */
+extern int  ofd;        /* output file descriptor */
+extern char ifname[];   /* input file name or "stdin" */
+extern char ofname[];   /* output file name or "stdout" */
+extern char *progname;  /* program name */
+
+extern long time_stamp; /* original time stamp (modification time) */
+extern long ifile_size; /* input file size, -1 for devices (debug only) */
+
+typedef int file_t;     /* Do not use stdio */
+#define NO_FILE  (-1)   /* in memory compression */
+
+
+#define	PACK_MAGIC     "\037\036" /* Magic header for packed files */
+#define	GZIP_MAGIC     "\037\213" /* Magic header for gzip files, 1F 8B */
+#define	OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */
+#define	LZH_MAGIC      "\037\240" /* Magic header for SCO LZH Compress files*/
+#define PKZIP_MAGIC    "\120\113\003\004" /* Magic header for pkzip files */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+/* internal file attribute */
+#define UNKNOWN 0xffff
+#define BINARY  0
+#define ASCII   1
+
+#ifndef WSIZE
+#  define WSIZE 0x8000     /* window size--must be a power of two, and */
+#endif                     /*  at least 32K for zip's deflate method */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST  (WSIZE-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+extern int decrypt;        /* flag to turn on decryption */
+extern int exit_code;      /* program exit code */
+extern int verbose;        /* be verbose (-v) */
+extern int quiet;          /* be quiet (-q) */
+extern int test;           /* check .z file integrity */
+extern int to_stdout;      /* output to stdout (-c) */
+extern int save_orig_name; /* set if original name must be saved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
+#define try_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
+
+/* put_byte is used for the compressed output, put_ubyte for the
+ * uncompressed output. However unlzw() uses window for its
+ * suffix table instead of its output buffer, so it does not use put_ubyte
+ * (to be cleaned up).
+ */
+#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
+   flush_outbuf();}
+#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
+   flush_window();}
+
+/* Output a 16 bit value, lsb first */
+#define put_short(w) \
+{ if (outcnt < OUTBUFSIZ-2) { \
+    outbuf[outcnt++] = (uch) ((w) & 0xff); \
+    outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
+  } else { \
+    put_byte((uch)((w) & 0xff)); \
+    put_byte((uch)((ush)(w) >> 8)); \
+  } \
+}
+
+/* Output a 32 bit value to the bit stream, lsb first */
+#define put_long(n) { \
+    put_short((n) & 0xffff); \
+    put_short(((ulg)(n)) >> 16); \
+}
+
+#define seekable()    0  /* force sequential output */
+#define translate_eol 0  /* no option -a yet */
+
+#define tolow(c)  (isupper(c) ? (c)-'A'+'a' : (c))    /* force to lower case */
+
+/* Macros for getting two-byte and four-byte header values */
+#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
+#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+#define WARN(msg) {if (!quiet) fprintf msg ; \
+		   if (exit_code == OK) exit_code = WARNING;}
+
+local void do_exit(int exitcode);
+
+	/* in zip.c: */
+extern int zip        OF((int in, int out));
+extern int file_read  OF((char *buf,  unsigned size));
+
+	/* in unzip.c */
+extern int unzip      OF((int in, int out));
+extern int check_zipfile OF((int in));
+
+	/* in unpack.c */
+extern int unpack     OF((int in, int out));
+
+	/* in unlzh.c */
+extern int unlzh      OF((int in, int out));
+
+	/* in gzip.c */
+RETSIGTYPE abort_gzip OF((void));
+
+        /* in deflate.c */
+void lm_init OF((ush *flags));
+ulg  deflate OF((void));
+
+        /* in trees.c */
+void ct_init     OF((ush *attr, int *method));
+int  ct_tally    OF((int dist, int lc));
+ulg  flush_block OF((char *buf, ulg stored_len, int eof));
+
+        /* in bits.c */
+void     bi_init    OF((file_t zipfile));
+void     send_bits  OF((int value, int length));
+unsigned bi_reverse OF((unsigned value, int length));
+void     bi_windup  OF((void));
+void     copy_block OF((char *buf, unsigned len, int header));
+extern   int (*read_buf) OF((char *buf, unsigned size));
+
+	/* in util.c: */
+extern int copy           OF((int in, int out));
+extern ulg  updcrc        OF((uch *s, unsigned n));
+extern void clear_bufs    OF((void));
+extern int  fill_inbuf    OF((int eof_ok));
+extern void flush_outbuf  OF((void));
+extern void flush_window  OF((void));
+extern void write_buf     OF((int fd, voidp buf, unsigned cnt));
+extern char *strlwr       OF((char *s));
+extern char *add_envopt   OF((int *argcp, char ***argvp, char *env));
+extern void error         OF((char *m));
+extern void warn          OF((char *a, char *b));
+extern void read_error    OF((void));
+extern void write_error   OF((void));
+extern void display_ratio OF((long num, long den, FILE *file));
+extern voidp xmalloc      OF((unsigned int size));
+
+	/* in inflate.c */
+extern int inflate OF((void));
+/* lzw.h -- define the lzw functions.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if !defined(OF) && defined(lint)
+#  include "gzip.h"
+#endif
+
+#ifndef BITS
+#  define BITS 16
+#endif
+#define INIT_BITS 9              /* Initial number of bits per code */
+
+#define BIT_MASK    0x1f /* Mask for 'number of compression bits' */
+/* Mask 0x20 is reserved to mean a fourth header byte, and 0x40 is free.
+ * It's a pity that old uncompress does not check bit 0x20. That makes
+ * extension of the format actually undesirable because old compress
+ * would just crash on the new format instead of giving a meaningful
+ * error message. It does check the number of bits, but it's more
+ * helpful to say "unsupported format, get a new version" than
+ * "can only handle 16 bits".
+ */
+
+#define BLOCK_MODE  0x80
+/* Block compression: if table is full and compression rate is dropping,
+ * clear the dictionary.
+ */
+
+#define LZW_RESERVED 0x60 /* reserved bits */
+
+#define	CLEAR  256       /* flush the dictionary */
+#define FIRST  (CLEAR+1) /* first free entry */
+
+extern int maxbits;      /* max bits per code for LZW */
+extern int block_mode;   /* block compress mode -C compatible with 2.0 */
+
+/* revision.h -- define the version number
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#define VERSION "1.2.4"
+#define PATCHLEVEL 0
+#define REVDATE "18 Aug 93"
+
+/* This version does not support compression into old compress format: */
+#ifdef LZW
+#  undef LZW
+#endif
+
+/* $Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+/* tailor.h -- target dependent definitions
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/* The target dependent definitions should be defined here only.
+ * The target dependent functions should be defined in tailor.c.
+ */
+
+/* $Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+
+#if defined(__OS2__) && !defined(OS2)
+#  define OS2
+#endif
+
+#if defined(OS2) && defined(MSDOS) /* MS C under OS/2 */
+#  undef MSDOS
+#endif
+
+#ifdef MSDOS
+#  ifdef __GNUC__
+     /* DJGPP version 1.09+ on MS-DOS.
+      * The DJGPP 1.09 stat() function must be upgraded before gzip will
+      * fully work.
+      * No need for DIRENT, since <unistd.h> defines POSIX_SOURCE which
+      * implies DIRENT.
+      */
+#    define near
+#  else
+#    define MAXSEG_64K
+#    ifdef __TURBOC__
+#      define NO_OFF_T
+#      ifdef __BORLANDC__
+#        define DIRENT
+#      else
+#        define NO_UTIME
+#      endif
+#    else /* MSC */
+#      define HAVE_SYS_UTIME_H
+#      define NO_UTIME_H
+#    endif
+#  endif
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  128
+#  define NO_MULTIPLE_DOTS
+#  define MAX_EXT_CHARS 3
+#  define Z_SUFFIX "z"
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  define NO_SIZE_CHECK
+#  define casemap(c) tolow(c) /* Force file names to lower case */
+#  include <io.h>
+#  define OS_CODE  0x00
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  if !defined(NO_ASM) && !defined(ASMV)
+#    define ASMV
+#  endif
+#else
+#  define near
+#endif
+
+#ifdef OS2
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  260
+#  ifdef OS2FAT
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define casemap(c) tolow(c)
+#  endif
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  include <io.h>
+#  define OS_CODE  0x06
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  ifdef _MSC_VER
+#    define HAVE_SYS_UTIME_H
+#    define NO_UTIME_H
+#    define MAXSEG_64K
+#    undef near
+#    define near _near
+#  endif
+#  ifdef __EMX__
+#    define HAVE_SYS_UTIME_H
+#    define NO_UTIME_H
+#    define DIRENT
+#    define EXPAND(argc,argv) \
+       {_response(&argc, &argv); _wildcard(&argc, &argv);}
+#  endif
+#  ifdef __BORLANDC__
+#    define DIRENT
+#  endif
+#  ifdef __ZTC__
+#    define NO_DIR
+#    define NO_UTIME_H
+#    include <dos.h>
+#    define EXPAND(argc,argv) \
+       {response_expand(&argc, &argv);}
+#  endif
+#endif
+
+#ifdef WIN32 /* Windows NT */
+#  define HAVE_SYS_UTIME_H
+#  define NO_UTIME_H
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  260
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  include <io.h>
+#  include <malloc.h>
+#  ifdef NTFAT
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define casemap(c) tolow(c) /* Force file names to lower case */
+#  endif
+#  define OS_CODE  0x0b
+#endif
+
+#ifdef MSDOS
+#  ifdef __TURBOC__
+#    include <alloc.h>
+#    define DYN_ALLOC
+     /* Turbo C 2.0 does not accept static allocations of large arrays */
+     void * fcalloc (unsigned items, unsigned size);
+     void fcfree (void *ptr);
+#  else /* MSC */
+#    include <malloc.h>
+#    define fcalloc(nitems,itemsize) halloc((long)(nitems),(itemsize))
+#    define fcfree(ptr) hfree(ptr)
+#  endif
+#else
+#  ifdef MAXSEG_64K
+#    define fcalloc(items,size) calloc((items),(size))
+#  else
+#    define fcalloc(items,size) malloc((size_t)(items)*(size_t)(size))
+#  endif
+#  define fcfree(ptr) free(ptr)
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define PATH_SEP ']'
+#  define PATH_SEP2 ':'
+#  define SUFFIX_SEP ';'
+#  define NO_MULTIPLE_DOTS
+#  define Z_SUFFIX "-gz"
+#  define RECORD_IO 1
+#  define casemap(c) tolow(c)
+#  define OS_CODE  0x02
+#  define OPTIONS_VAR "GZIP_OPT"
+#  define STDC_HEADERS
+#  define NO_UTIME
+#  define EXPAND(argc,argv) vms_expand_args(&argc,&argv);
+#  include <file.h>
+#  define unlink delete
+#  ifdef VAXC
+#    define NO_FCNTL_H
+#    include <unixio.h>
+#  endif
+#endif
+
+#ifdef AMIGA
+#  define PATH_SEP2 ':'
+#  define STDC_HEADERS
+#  define OS_CODE  0x01
+#  define ASMV
+#  ifdef __GNUC__
+#    define DIRENT
+#    define HAVE_UNISTD_H
+#  else /* SASC */
+#    define NO_STDIN_FSTAT
+#    define SYSDIR
+#    define NO_SYMLINK
+#    define NO_CHOWN
+#    define NO_FCNTL_H
+#    include <fcntl.h> /* for read() and write() */
+#    define direct dirent
+     extern void _expand_args(int *argc, char ***argv);
+#    define EXPAND(argc,argv) _expand_args(&argc,&argv);
+#    undef  O_BINARY /* disable useless --ascii option */
+#  endif
+#endif
+
+#if defined(ATARI) || defined(atarist)
+#  ifndef STDC_HEADERS
+#    define STDC_HEADERS
+#    define HAVE_UNISTD_H
+#    define DIRENT
+#  endif
+#  define ASMV
+#  define OS_CODE  0x05
+#  ifdef TOSFS
+#    define PATH_SEP2 '\\'
+#    define PATH_SEP3 ':'
+#    define MAX_PATH_LEN  128
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define NO_CHOWN
+#    define casemap(c) tolow(c) /* Force file names to lower case */
+#    define NO_SYMLINK
+#  endif
+#endif
+
+#ifdef MACOS
+#  define PATH_SEP ':'
+#  define DYN_ALLOC
+#  define PROTO
+#  define NO_STDIN_FSTAT
+#  define NO_CHOWN
+#  define NO_UTIME
+#  define chmod(file, mode) (0)
+#  define OPEN(name, flags, mode) open(name, flags)
+#  define OS_CODE  0x07
+#  ifdef MPW
+#    define isatty(fd) ((fd) <= 2)
+#  endif
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+#  define PATH_SEP '>'
+#  define STDC_HEADERS
+#  define NO_MEMORY_H
+#  define NO_UTIME_H
+#  define NO_UTIME
+#  define NO_CHOWN 
+#  define NO_STDIN_FSTAT 
+#  define NO_SIZE_CHECK 
+#  define NO_SYMLINK
+#  define RECORD_IO  1
+#  define casemap(c)  tolow(c) /* Force file names to lower case */
+#  define put_char(c) put_byte((c) & 0x7F)
+#  define get_char(c) ascii2pascii(get_byte())
+#  define OS_CODE  0x0F    /* temporary, subject to change */
+#  ifdef SIGTERM
+#    undef SIGTERM         /* We don't want a signal handler for SIGTERM */
+#  endif
+#endif
+
+#if defined(pyr) && !defined(NOMEMCPY) /* Pyramid */
+#  define NOMEMCPY /* problem with overlapping copies */
+#endif
+
+#ifdef TOPS20
+#  define OS_CODE  0x0a
+#endif
+
+#ifndef unix
+#  define NO_ST_INO /* don't rely on inode numbers */
+#endif
+
+
+	/* Common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  0x03  /* assume Unix */
+#endif
+
+#ifndef PATH_SEP
+#  define PATH_SEP '/'
+#endif
+
+#ifndef casemap
+#  define casemap(c) (c)
+#endif
+
+#ifndef OPTIONS_VAR
+#  define OPTIONS_VAR "GZIP"
+#endif
+
+#ifndef Z_SUFFIX
+#  define Z_SUFFIX ".gz"
+#endif
+
+#ifdef MAX_EXT_CHARS
+#  define MAX_SUFFIX  MAX_EXT_CHARS
+#else
+#  define MAX_SUFFIX  30
+#endif
+
+#ifndef MAKE_LEGAL_NAME
+#  ifdef NO_MULTIPLE_DOTS
+#    define MAKE_LEGAL_NAME(name)   make_simple_name(name)
+#  else
+#    define MAKE_LEGAL_NAME(name)
+#  endif
+#endif
+
+#ifndef MIN_PART
+#  define MIN_PART 3
+   /* keep at least MIN_PART chars between dots in a file name. */
+#endif
+
+#ifndef EXPAND
+#  define EXPAND(argc,argv)
+#endif
+
+#ifndef RECORD_IO
+#  define RECORD_IO 0
+#endif
+
+#ifndef SET_BINARY_MODE
+#  define SET_BINARY_MODE(fd)
+#endif
+
+#ifndef OPEN
+#  define OPEN(name, flags, mode) open(name, flags, mode)
+#endif
+
+#ifndef get_char
+#  define get_char() get_byte()
+#endif
+
+#ifndef put_char
+#  define put_char(c) put_byte(c)
+#endif
+/* bits.c -- output variable-length bit strings
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+
+/*
+ *  PURPOSE
+ *
+ *      Output variable-length bit strings. Compression can be done
+ *      to a file or to memory. (The latter is not supported in this version.)
+ *
+ *  DISCUSSION
+ *
+ *      The PKZIP "deflate" file format interprets compressed file data
+ *      as a sequence of bits.  Multi-bit strings in the file may cross
+ *      byte boundaries without restriction.
+ *
+ *      The first bit of each byte is the low-order bit.
+ *
+ *      The routines in this file allow a variable-length bit value to
+ *      be output right-to-left (useful for literal values). For
+ *      left-to-right output (useful for code strings from the tree routines),
+ *      the bits must have been reversed first with bi_reverse().
+ *
+ *      For in-memory compression, the compressed bit stream goes directly
+ *      into the requested output buffer. The input data is read in blocks
+ *      by the mem_read() function. The buffer is limited to 64K on 16 bit
+ *      machines.
+ *
+ *  INTERFACE
+ *
+ *      void bi_init (FILE *zipfile)
+ *          Initialize the bit string routines.
+ *
+ *      void send_bits (int value, int length)
+ *          Write out a bit string, taking the source bits right to
+ *          left.
+ *
+ *      int bi_reverse (int value, int length)
+ *          Reverse the bits of a bit string, taking the source bits left to
+ *          right and emitting them right to left.
+ *
+ *      void bi_windup (void)
+ *          Write out any remaining bits in an incomplete byte.
+ *
+ *      void copy_block(char *buf, unsigned len, int header)
+ *          Copy a stored block to the zip file, storing first the length and
+ *          its one's complement if requested.
+ *
+ */
+
+#ifdef DEBUG
+#  include <stdio.h>
+#endif
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Local data used by the "bit string" routines.
+ */
+
+local file_t zfile; /* output gzip file */
+
+local unsigned short bi_buf;
+/* Output buffer. bits are inserted starting at the bottom (least significant
+ * bits).
+ */
+
+#define Buf_size (8 * 2*sizeof(char))
+/* Number of bits used within bi_buf. (bi_buf might be implemented on
+ * more than 16 bits on some systems.)
+ */
+
+local int bi_valid;
+/* Number of valid bits in bi_buf.  All bits above the last valid bit
+ * are always zero.
+ */
+
+int (*read_buf) OF((char *buf, unsigned size));
+/* Current input function. Set to mem_read for in-memory compression */
+
+#ifdef DEBUG
+  ulg bits_sent;   /* bit length of the compressed data */
+#endif
+
+/* ===========================================================================
+ * Initialize the bit string routines.
+ */
+void bi_init (zipfile)
+    file_t zipfile; /* output zip file, NO_FILE for in-memory compression */
+{
+    zfile  = zipfile;
+    bi_buf = 0;
+    bi_valid = 0;
+#ifdef DEBUG
+    bits_sent = 0L;
+#endif
+
+    /* Set the defaults for file compression. They are set by memcompress
+     * for in-memory compression.
+     */
+    if (zfile != NO_FILE) {
+	read_buf  = file_read;
+    }
+}
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+void send_bits(value, length)
+    int value;  /* value to send */
+    int length; /* number of bits */
+{
+#ifdef DEBUG
+    Tracev((stderr," l %2d v %4x ", length, value));
+    Assert(length > 0 && length <= 15, "invalid length");
+    bits_sent += (ulg)length;
+#endif
+    /* If not enough room in bi_buf, use (valid) bits from bi_buf and
+     * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
+     * unused bits in value.
+     */
+    if (bi_valid > (int)Buf_size - length) {
+        bi_buf |= (value << bi_valid);
+        put_short(bi_buf);
+        bi_buf = (ush)value >> (Buf_size - bi_valid);
+        bi_valid += length - Buf_size;
+    } else {
+        bi_buf |= value << bi_valid;
+        bi_valid += length;
+    }
+}
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+unsigned bi_reverse(code, len)
+    unsigned code; /* the value to invert */
+    int len;       /* its bit length */
+{
+    register unsigned res = 0;
+    do {
+        res |= code & 1;
+        code >>= 1, res <<= 1;
+    } while (--len > 0);
+    return res >> 1;
+}
+
+/* ===========================================================================
+ * Write out any remaining bits in an incomplete byte.
+ */
+void bi_windup()
+{
+    if (bi_valid > 8) {
+        put_short(bi_buf);
+    } else if (bi_valid > 0) {
+        put_byte(bi_buf);
+    }
+    bi_buf = 0;
+    bi_valid = 0;
+#ifdef DEBUG
+    bits_sent = (bits_sent+7) & ~7;
+#endif
+}
+
+/* ===========================================================================
+ * Copy a stored block to the zip file, storing first the length and its
+ * one's complement if requested.
+ */
+void copy_block(buf, len, header)
+    char     *buf;    /* the input data */
+    unsigned len;     /* its length */
+    int      header;  /* true if block header must be written */
+{
+    bi_windup();              /* align on byte boundary */
+
+    if (header) {
+        put_short((ush)len);   
+        put_short((ush)~len);
+#ifdef DEBUG
+        bits_sent += 2*16;
+#endif
+    }
+#ifdef DEBUG
+    bits_sent += (ulg)len<<3;
+#endif
+    while (len--) {
+#ifdef CRYPT
+        int t;
+	if (key) zencode(*buf, t);
+#endif
+	put_byte(*buf++);
+    }
+}
+/* deflate.c -- compress data using the deflation algorithm
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ *  PURPOSE
+ *
+ *      Identify new text as repetitions of old text within a fixed-
+ *      length sliding window trailing behind the new text.
+ *
+ *  DISCUSSION
+ *
+ *      The "deflation" process depends on being able to identify portions
+ *      of the input text which are identical to earlier input (within a
+ *      sliding window trailing behind the input currently being processed).
+ *
+ *      The most straightforward technique turns out to be the fastest for
+ *      most input files: try all possible matches and select the longest.
+ *      The key feature of this algorithm is that insertions into the string
+ *      dictionary are very simple and thus fast, and deletions are avoided
+ *      completely. Insertions are performed at each input character, whereas
+ *      string matches are performed only when the previous match ends. So it
+ *      is preferable to spend more time in matches to allow very fast string
+ *      insertions and avoid deletions. The matching algorithm for small
+ *      strings is inspired from that of Rabin & Karp. A brute force approach
+ *      is used to find longer strings when a small match has been found.
+ *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
+ *      (by Leonid Broukhis).
+ *         A previous version of this file used a more sophisticated algorithm
+ *      (by Fiala and Greene) which is guaranteed to run in linear amortized
+ *      time, but has a larger average cost, uses more memory and is patented.
+ *      However the F&G algorithm may be faster for some highly redundant
+ *      files if the parameter max_chain_length (described below) is too large.
+ *
+ *  ACKNOWLEDGEMENTS
+ *
+ *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
+ *      I found it in 'freeze' written by Leonid Broukhis.
+ *      Thanks to many info-zippers for bug reports and testing.
+ *
+ *  REFERENCES
+ *
+ *      APPNOTE.TXT documentation file in PKZIP 1.93a distribution.
+ *
+ *      A description of the Rabin and Karp algorithm is given in the book
+ *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
+ *
+ *      Fiala,E.R., and Greene,D.H.
+ *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
+ *
+ *  INTERFACE
+ *
+ *      void lm_init (int pack_level, ush *flags)
+ *          Initialize the "longest match" routines for a new file
+ *
+ *      ulg deflate (void)
+ *          Processes a new input file and return its compressed length. Sets
+ *          the compressed length, crc, deflate flags and internal file
+ *          attributes.
+ */
+
+#include <stdio.h>
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Configuration parameters
+ */
+
+/* Compile with MEDIUM_MEM to reduce the memory requirements or
+ * with SMALL_MEM to use as little memory as possible. Use BIG_MEM if the
+ * entire input file can be held in memory (not possible on 16 bit systems).
+ * Warning: defining these symbols affects HASH_BITS (see below) and thus
+ * affects the compression ratio. The compressed output
+ * is still correct, and might even be smaller in some cases.
+ */
+
+#ifdef SMALL_MEM
+#   define HASH_BITS  13  /* Number of bits used to hash strings */
+#endif
+#ifdef MEDIUM_MEM
+#   define HASH_BITS  14
+#endif
+#ifndef HASH_BITS
+#   define HASH_BITS  15
+   /* For portability to 16 bit machines, do not use values above 15. */
+#endif
+
+/* To save space (see unlzw.c), we overlay prev+head with tab_prefix and
+ * window with tab_suffix. Check that we can do this:
+ */
+#if (WSIZE<<1) > (1<<BITS)
+   error: cannot overlay window with tab_suffix and prev with tab_prefix0
+#endif
+#if HASH_BITS > BITS-1
+   error: cannot overlay head with tab_prefix1
+#endif
+
+#define HASH_SIZE (unsigned)(1<<HASH_BITS)
+#define HASH_MASK (HASH_SIZE-1)
+#define WMASK     (WSIZE-1)
+/* HASH_SIZE and WSIZE must be powers of two */
+
+#define NIL 0
+/* Tail of hash chains */
+
+#define FAST 4
+#define SLOW 2
+/* speed options for the general purpose bit flag */
+
+#ifndef TOO_FAR
+#  define TOO_FAR 4096
+#endif
+/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
+/* ===========================================================================
+ * Local data used by the "longest match" routines.
+ */
+
+typedef ush Pos;
+typedef unsigned IPos;
+/* A Pos is an index in the character window. We use short instead of int to
+ * save space in the various tables. IPos is used only for parameter passing.
+ */
+
+/* DECLARE(uch, window, 2L*WSIZE); */
+/* Sliding window. Input bytes are read into the second half of the window,
+ * and move to the first half later to keep a dictionary of at least WSIZE
+ * bytes. With this organization, matches are limited to a distance of
+ * WSIZE-MAX_MATCH bytes, but this ensures that IO is always
+ * performed with a length multiple of the block size. Also, it limits
+ * the window size to 64K, which is quite useful on MSDOS.
+ * To do: limit the window size to WSIZE+BSZ if SMALL_MEM (the code would
+ * be less efficient).
+ */
+
+/* DECLARE(Pos, prev, WSIZE); */
+/* Link to older string with same hash index. To limit the size of this
+ * array to 64K, this link is maintained only for the last 32K strings.
+ * An index in this array is thus a window index modulo 32K.
+ */
+
+/* DECLARE(Pos, head, 1<<HASH_BITS); */
+/* Heads of the hash chains or NIL. */
+
+ulg window_size = (ulg)2*WSIZE;
+/* window size, 2*WSIZE except for MMAP or BIG_MEM, where it is the
+ * input file length plus MIN_LOOKAHEAD.
+ */
+
+long block_start;
+/* window position at the beginning of the current output block. Gets
+ * negative when the window is moved backwards.
+ */
+
+local unsigned ins_h;  /* hash index of string to be inserted */
+
+#define H_SHIFT  ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
+/* Number of bits by which ins_h and del_h must be shifted at each
+ * input step. It must be such that after MIN_MATCH steps, the oldest
+ * byte no longer takes part in the hash key, that is:
+ *   H_SHIFT * MIN_MATCH >= HASH_BITS
+ */
+
+unsigned int near prev_length;
+/* Length of the best match at previous step. Matches not greater than this
+ * are discarded. This is used in the lazy match evaluation.
+ */
+
+      unsigned near strstart;      /* start of string to insert */
+      unsigned near match_start;   /* start of matching string */
+local int           eofile;        /* flag set at end of input file */
+local unsigned      lookahead;     /* number of valid bytes ahead in window */
+
+unsigned near max_chain_length;
+/* To speed up deflation, hash chains are never searched beyond this length.
+ * A higher limit improves compression ratio but degrades the speed.
+ */
+
+local unsigned int max_lazy_match;
+/* Attempt to find a better match only when the current match is strictly
+ * smaller than this value. This mechanism is used only for compression
+ * levels >= 4.
+ */
+#define max_insert_length  max_lazy_match
+/* Insert new strings in the hash table only if the match length
+ * is not greater than this length. This saves time but degrades compression.
+ * max_insert_length is used only for compression levels <= 3.
+ */
+
+unsigned near good_match;
+/* Use a faster search when the previous match is longer than this */
+
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+
+typedef struct config {
+   ush good_length; /* reduce lazy search above this match length */
+   ush max_lazy;    /* do not perform lazy search above this match length */
+   ush nice_length; /* quit search above this match length */
+   ush max_chain;
+} config;
+
+#ifdef  FULL_SEARCH
+# define nice_match MAX_MATCH
+#else
+  int near nice_match; /* Stop searching when current match exceeds this */
+#endif
+
+local config configuration_table = 
+/* 9 */ {32, 258, 258, 4096}; /* maximum compression */
+
+/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
+ * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
+ * meaning.
+ */
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
+/* ===========================================================================
+ *  Prototypes for local functions.
+ */
+local void fill_window   OF((void));
+
+      int  longest_match OF((IPos cur_match));
+#ifdef ASMV
+      void match_init OF((void)); /* asm code initialization */
+#endif
+
+#ifdef DEBUG
+local  void check_match OF((IPos start, IPos match, int length));
+#endif
+
+/* ===========================================================================
+ * Update a hash value with the given input byte
+ * IN  assertion: all calls to to UPDATE_HASH are made with consecutive
+ *    input characters, so that a running hash key can be computed from the
+ *    previous key instead of complete recalculation each time.
+ */
+#define UPDATE_HASH(h,c) (h = (((h)<<H_SHIFT) ^ (c)) & HASH_MASK)
+
+/* ===========================================================================
+ * Insert string s in the dictionary and set match_head to the previous head
+ * of the hash chain (the most recent string with same hash key). Return
+ * the previous length of the hash chain.
+ * IN  assertion: all calls to to INSERT_STRING are made with consecutive
+ *    input characters and the first MIN_MATCH bytes of s are valid
+ *    (except for the last MIN_MATCH-1 bytes of the input file).
+ */
+#define INSERT_STRING(s, match_head) \
+   (UPDATE_HASH(ins_h, window[(s) + MIN_MATCH-1]), \
+    prev[(s) & WMASK] = match_head = head[ins_h], \
+    head[ins_h] = (s))
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new file
+ */
+void lm_init (flags)
+    ush *flags;     /* general purpose bit flag */
+{
+    register unsigned j;
+
+    /* Initialize the hash table. */
+#if defined(MAXSEG_64K) && HASH_BITS == 15
+    for (j = 0;  j < HASH_SIZE; j++) head[j] = NIL;
+#else
+    memzero((char*)head, HASH_SIZE*sizeof(*head));
+#endif
+    /* prev will be initialized on the fly */
+
+    /* Set the default configuration parameters:
+     */
+    max_lazy_match   = configuration_table.max_lazy;
+    good_match       = configuration_table.good_length;
+#ifndef FULL_SEARCH
+    nice_match       = configuration_table.nice_length;
+#endif
+    max_chain_length = configuration_table.max_chain;
+    *flags |= SLOW;
+    /* ??? reduce max_chain_length for binary files */
+
+    strstart = 0;
+    block_start = 0L;
+#ifdef ASMV
+    match_init(); /* initialize the asm code */
+#endif
+
+    lookahead = read_buf((char*)window,
+			 sizeof(int) <= 2 ? (unsigned)WSIZE : 2*WSIZE);
+
+    if (lookahead == 0 || lookahead == (unsigned)EOF) {
+       eofile = 1, lookahead = 0;
+       return;
+    }
+    eofile = 0;
+    /* Make sure that we always have enough lookahead. This is important
+     * if input comes from a device such as a tty.
+     */
+    while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+
+    ins_h = 0;
+    for (j=0; j<MIN_MATCH-1; j++) UPDATE_HASH(ins_h, window[j]);
+    /* If lookahead < MIN_MATCH, ins_h is garbage, but this is
+     * not important since only literal bytes will be emitted.
+     */
+}
+
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+#ifndef ASMV
+/* For MSDOS, OS/2 and 386 Unix, an optimized version is in match.asm or
+ * match.s. The code is functionally equivalent, so you can use the C version
+ * if desired.
+ */
+int longest_match(cur_match)
+    IPos cur_match;                             /* current match */
+{
+    unsigned chain_length = max_chain_length;   /* max hash chain length */
+    register uch *scan = window + strstart;     /* current string */
+    register uch *match;                        /* matched string */
+    register int len;                           /* length of current match */
+    int best_len = prev_length;                 /* best match length so far */
+    IPos limit = strstart > (IPos)MAX_DIST ? strstart - (IPos)MAX_DIST : NIL;
+    /* Stop when cur_match becomes <= limit. To simplify the code,
+     * we prevent matches with the string of window index 0.
+     */
+
+/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+ * It is easy to get rid of this optimization if necessary.
+ */
+#if HASH_BITS < 8 || MAX_MATCH != 258
+   error: Code too clever
+#endif
+
+#ifdef UNALIGNED_OK
+    /* Compare two bytes at a time. Note: this is not always beneficial.
+     * Try with and without -DUNALIGNED_OK to check.
+     */
+    register uch *strend = window + strstart + MAX_MATCH - 1;
+    register ush scan_start = *(ush*)scan;
+    register ush scan_end   = *(ush*)(scan+best_len-1);
+#else
+    register uch *strend = window + strstart + MAX_MATCH;
+    register uch scan_end1  = scan[best_len-1];
+    register uch scan_end   = scan[best_len];
+#endif
+
+    /* Do not waste too much time if we already have a good match: */
+    if (prev_length >= good_match) {
+        chain_length >>= 2;
+    }
+    Assert(strstart <= window_size-MIN_LOOKAHEAD, "insufficient lookahead");
+
+    do {
+        Assert(cur_match < strstart, "no future");
+        match = window + cur_match;
+
+        /* Skip to next match if the match length cannot increase
+         * or if the match length is less than 2:
+         */
+#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
+        /* This code assumes sizeof(unsigned short) == 2. Do not use
+         * UNALIGNED_OK if your compiler uses a different size.
+         */
+        if (*(ush*)(match+best_len-1) != scan_end ||
+            *(ush*)match != scan_start) continue;
+
+        /* It is not necessary to compare scan[2] and match[2] since they are
+         * always equal when the other bytes match, given that the hash keys
+         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
+         * strstart+3, +5, ... up to strstart+257. We check for insufficient
+         * lookahead only every 4th comparison; the 128th check will be made
+         * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
+         * necessary to put more guard bytes at the end of the window, or
+         * to check more often for insufficient lookahead.
+         */
+        scan++, match++;
+        do {
+        } while (*(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 scan < strend);
+        /* The funny "do {}" generates better code on most compilers */
+
+        /* Here, scan <= window+strstart+257 */
+        Assert(scan <= window+(unsigned)(window_size-1), "wild scan");
+        if (*scan == *match) scan++;
+
+        len = (MAX_MATCH - 1) - (int)(strend-scan);
+        scan = strend - (MAX_MATCH-1);
+
+#else /* UNALIGNED_OK */
+
+        if (match[best_len]   != scan_end  ||
+            match[best_len-1] != scan_end1 ||
+            *match            != *scan     ||
+            *++match          != scan[1])      continue;
+
+        /* The check at best_len-1 can be removed because it will be made
+         * again later. (This heuristic is not always a win.)
+         * It is not necessary to compare scan[2] and match[2] since they
+         * are always equal when the other bytes match, given that
+         * the hash keys are equal and that HASH_BITS >= 8.
+         */
+        scan += 2, match++;
+
+        /* We check for insufficient lookahead only every 8th comparison;
+         * the 256th check will be made at strstart+258.
+         */
+        do {
+        } while (*++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 scan < strend);
+
+        len = MAX_MATCH - (int)(strend - scan);
+        scan = strend - MAX_MATCH;
+
+#endif /* UNALIGNED_OK */
+
+        if (len > best_len) {
+            match_start = cur_match;
+            best_len = len;
+            if (len >= nice_match) break;
+#ifdef UNALIGNED_OK
+            scan_end = *(ush*)(scan+best_len-1);
+#else
+            scan_end1  = scan[best_len-1];
+            scan_end   = scan[best_len];
+#endif
+        }
+    } while ((cur_match = prev[cur_match & WMASK]) > limit
+	     && --chain_length != 0);
+
+    return best_len;
+}
+#endif /* ASMV */
+
+#ifdef DEBUG
+/* ===========================================================================
+ * Check that the match at match_start is indeed a match.
+ */
+local void check_match(start, match, length)
+    IPos start, match;
+    int length;
+{
+    /* check that the match is indeed a match */
+    if (memcmp((char*)window + match,
+                (char*)window + start, length) != EQUAL) {
+        fprintf(stderr,
+            " start %d, match %d, length %d\n",
+            start, match, length);
+        error("invalid match");
+    }
+    if (verbose > 1) {
+        fprintf(stderr,"\\[%d,%d]", start-match, length);
+        do { putc(window[start++], stderr); } while (--length != 0);
+    }
+}
+#else
+#  define check_match(start, match, length)
+#endif
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead, and sets eofile if end of input file.
+ * IN assertion: lookahead < MIN_LOOKAHEAD && strstart + lookahead > 0
+ * OUT assertions: at least one byte has been read, or eofile is set;
+ *    file reads are performed for at least two bytes (required for the
+ *    translate_eol option).
+ */
+local void fill_window()
+{
+    register unsigned n, m;
+    unsigned more = (unsigned)(window_size - (ulg)lookahead - (ulg)strstart);
+    /* Amount of free space at the end of the window. */
+
+    /* If the window is almost full and there is insufficient lookahead,
+     * move the upper half to the lower one to make room in the upper half.
+     */
+    if (more == (unsigned)EOF) {
+        /* Very unlikely, but possible on 16 bit machine if strstart == 0
+         * and lookahead == 1 (input done one byte at time)
+         */
+        more--;
+    } else if (strstart >= WSIZE+MAX_DIST) {
+        /* By the IN assertion, the window is not empty so we can't confuse
+         * more == 0 with more == 64K on a 16 bit machine.
+         */
+        Assert(window_size == (ulg)2*WSIZE, "no sliding with BIG_MEM");
+
+        memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
+        match_start -= WSIZE;
+        strstart    -= WSIZE; /* we now have strstart >= MAX_DIST: */
+
+        block_start -= (long) WSIZE;
+
+        for (n = 0; n < HASH_SIZE; n++) {
+            m = head[n];
+            head[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+        }
+        for (n = 0; n < WSIZE; n++) {
+            m = prev[n];
+            prev[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+            /* If n is not on any hash chain, prev[n] is garbage but
+             * its value will never be used.
+             */
+        }
+        more += WSIZE;
+    }
+    /* At this point, more >= 2 */
+    if (!eofile) {
+        n = read_buf((char*)window+strstart+lookahead, more);
+        if (n == 0 || n == (unsigned)EOF) {
+            eofile = 1;
+        } else {
+            lookahead += n;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+#define FLUSH_BLOCK(eof) \
+   flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
+                (char*)NULL, (long)strstart - block_start, (eof))
+
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+ulg deflate()
+{
+    IPos hash_head;          /* head of hash chain */
+    IPos prev_match;         /* previous match */
+    int flush;               /* set if current block must be flushed */
+    int match_available = 0; /* set if previous match exists */
+    register unsigned match_length = MIN_MATCH-1; /* length of best match */
+#ifdef DEBUG
+    extern long isize;        /* byte length of input file, for debug only */
+#endif
+
+    /* Process the input block. */
+    while (lookahead != 0) {
+        /* Insert the string window[strstart .. strstart+2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        INSERT_STRING(strstart, hash_head);
+
+        /* Find the longest match, discarding those <= prev_length.
+         */
+        prev_length = match_length, prev_match = match_start;
+        match_length = MIN_MATCH-1;
+
+        if (hash_head != NIL && prev_length < max_lazy_match &&
+            strstart - hash_head <= MAX_DIST) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            match_length = longest_match (hash_head);
+            /* longest_match() sets match_start */
+            if (match_length > lookahead) match_length = lookahead;
+
+            /* Ignore a length 3 match if it is too distant: */
+            if (match_length == MIN_MATCH && strstart-match_start > TOO_FAR){
+                /* If prev_match is also MIN_MATCH, match_start is garbage
+                 * but we will ignore the current match anyway.
+                 */
+                match_length--;
+            }
+        }
+        /* If there was a match at the previous step and the current
+         * match is not better, output the previous match:
+         */
+        if (prev_length >= MIN_MATCH && match_length <= prev_length) {
+
+            check_match(strstart-1, prev_match, prev_length);
+
+            flush = ct_tally(strstart-1-prev_match, prev_length - MIN_MATCH);
+
+            /* Insert in hash table all strings up to the end of the match.
+             * strstart-1 and strstart are already inserted.
+             */
+            lookahead -= prev_length-1;
+            prev_length -= 2;
+            do {
+                strstart++;
+                INSERT_STRING(strstart, hash_head);
+                /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+                 * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
+                 * these bytes are garbage, but it does not matter since the
+                 * next lookahead bytes will always be emitted as literals.
+                 */
+            } while (--prev_length != 0);
+            match_available = 0;
+            match_length = MIN_MATCH-1;
+            strstart++;
+            if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
+        } else if (match_available) {
+            /* If there was no match at the previous position, output a
+             * single literal. If there was a match but the current match
+             * is longer, truncate the previous match to a single literal.
+             */
+            Tracevv((stderr,"%c",window[strstart-1]));
+            if (ct_tally (0, window[strstart-1])) {
+                FLUSH_BLOCK(0), block_start = strstart;
+            }
+            strstart++;
+            lookahead--;
+        } else {
+            /* There is no previous match to compare with, wait for
+             * the next step to decide.
+             */
+            match_available = 1;
+            strstart++;
+            lookahead--;
+        }
+        Assert (strstart <= isize && lookahead <= isize, "a bit too far");
+
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+    }
+    if (match_available) ct_tally (0, window[strstart-1]);
+
+    return FLUSH_BLOCK(1); /* eof */
+}
+/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * The unzip code was written and put in the public domain by Mark Adler.
+ * Portions of the lzw code are derived from the public domain 'compress'
+ * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
+ * Ken Turkowski, Dave Mack and Peter Jannesen.
+ *
+ * See the license_msg below and the file COPYING for the software license.
+ * See the file algorithm.doc for the compression algorithms and file formats.
+ */
+
+/* Compress files with zip algorithm and 'compress' interface.
+ * See usage() and help() functions below for all options.
+ * Outputs:
+ *        file.gz:   compressed file with same mode, owner, and utimes
+ *     or stdout with -c option or if stdin used as input.
+ * If the output file name had to be truncated, the original name is kept
+ * in the compressed file.
+ * On MSDOS, file.tmp -> file.tmz. On VMS, file.tmp -> file.tmp-gz.
+ *
+ * Using gz on MSDOS would create too many file name conflicts. For
+ * example, foo.txt -> foo.tgz (.tgz must be reserved as shorthand for
+ * tar.gz). Similarly, foo.dir and foo.doc would both be mapped to foo.dgz.
+ * I also considered 12345678.txt -> 12345txt.gz but this truncates the name
+ * too heavily. There is no ideal solution given the MSDOS 8+3 limitation. 
+ *
+ * For the meaning of all compilation flags, see comments in Makefile.in.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+		/* configuration */
+
+#ifdef NO_TIME_H
+#  include <sys/time.h>
+#else
+#  include <time.h>
+#endif
+
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#else
+   extern int errno;
+#endif
+
+#if defined(DIRENT)
+#  include <dirent.h>
+   typedef struct dirent dir_type;
+#  define NLENGTH(dirent) ((int)strlen((dirent)->d_name))
+#  define DIR_OPT "DIRENT"
+#else
+#  define NLENGTH(dirent) ((dirent)->d_namlen)
+#  ifdef SYSDIR
+#    include <sys/dir.h>
+     typedef struct direct dir_type;
+#    define DIR_OPT "SYSDIR"
+#  else
+#    ifdef SYSNDIR
+#      include <sys/ndir.h>
+       typedef struct direct dir_type;
+#      define DIR_OPT "SYSNDIR"
+#    else
+#      ifdef NDIR
+#        include <ndir.h>
+         typedef struct direct dir_type;
+#        define DIR_OPT "NDIR"
+#      else
+#        define NO_DIR
+#        define DIR_OPT "NO_DIR"
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifndef NO_UTIME
+#  ifndef NO_UTIME_H
+#    include <utime.h>
+#    define TIME_OPT "UTIME"
+#  else
+#    ifdef HAVE_SYS_UTIME_H
+#      include <sys/utime.h>
+#      define TIME_OPT "SYS_UTIME"
+#    else
+       struct utimbuf {
+         time_t actime;
+         time_t modtime;
+       };
+#      define TIME_OPT ""
+#    endif
+#  endif
+#else
+#  define TIME_OPT "NO_UTIME"
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+#  define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+#  define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
+typedef RETSIGTYPE (*sig_type) OF((int));
+
+#ifndef	O_BINARY
+#  define  O_BINARY  0  /* creation mode for open() */
+#endif
+
+#ifndef O_CREAT
+   /* Pure BSD system? */
+#  include <sys/file.h>
+#  ifndef O_CREAT
+#    define O_CREAT FCREAT
+#  endif
+#  ifndef O_EXCL
+#    define O_EXCL FEXCL
+#  endif
+#endif
+
+#ifndef S_IRUSR
+#  define S_IRUSR 0400
+#endif
+#ifndef S_IWUSR
+#  define S_IWUSR 0200
+#endif
+#define RW_USER (S_IRUSR | S_IWUSR)  /* creation mode for open() */
+
+#ifndef MAX_PATH_LEN
+#  define MAX_PATH_LEN   1024 /* max pathname length */
+#endif
+
+#ifndef SEEK_END
+#  define SEEK_END 2
+#endif
+
+#ifdef NO_OFF_T
+  typedef long off_t;
+  off_t lseek OF((int fd, off_t offset, int whence));
+#endif
+
+/* Separator for file name parts (see shorten_name()) */
+#ifdef NO_MULTIPLE_DOTS
+#  define PART_SEP "-"
+#else
+#  define PART_SEP "."
+#endif
+
+		/* global buffers */
+
+DECLARE(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+DECLARE(ush, d_buf,  DIST_BUFSIZE);
+DECLARE(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    DECLARE(ush, tab_prefix, 1L<<BITS);
+#else
+    DECLARE(ush, tab_prefix0, 1L<<(BITS-1));
+    DECLARE(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+		/* local variables */
+
+int ascii = 0;        /* convert end-of-lines to local OS conventions */
+int to_stdout = 0;    /* output to stdout (-c) */
+int decompress = 0;   /* decompress (-d) */
+int no_name = -1;     /* don't save or restore the original file name */
+int no_time = -1;     /* don't save or restore the original file time */
+int foreground;       /* set if program run in foreground */
+char *progname;       /* program name */
+static int method = DEFLATED;/* compression method */
+static int exit_code = OK;   /* program exit code */
+int save_orig_name;   /* set if original name must be saved */
+int last_member;      /* set for .zip and .Z files */
+int part_nb;          /* number of parts in .gz file */
+long time_stamp;      /* original time stamp (modification time) */
+long ifile_size;      /* input file size, -1 for devices (debug only) */
+char *env;            /* contents of GZIP env variable */
+char **args = NULL;   /* argv pointer if GZIP env variable defined */
+char z_suffix[MAX_SUFFIX+1]; /* default suffix (can be set with --suffix) */
+int  z_len;           /* strlen(z_suffix) */
+
+long bytes_in;             /* number of input bytes */
+long bytes_out;            /* number of output bytes */
+char ifname[MAX_PATH_LEN]; /* input file name */
+char ofname[MAX_PATH_LEN]; /* output file name */
+int  remove_ofname = 0;	   /* remove output file on error */
+struct stat istat;         /* status for input file */
+int  ifd;                  /* input file descriptor */
+int  ofd;                  /* output file descriptor */
+unsigned insize;           /* valid bytes in inbuf */
+unsigned inptr;            /* index of next byte to be processed in inbuf */
+unsigned outcnt;           /* bytes in output buffer */
+
+/* local functions */
+
+local void treat_stdin  OF((void));
+static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
+
+#define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
+
+/* ======================================================================== */
+// int main (argc, argv)
+//    int argc;
+//    char **argv;
+int gzip_main(struct FileInfo * i, int argc, char * * argv)
+{
+    foreground = signal(SIGINT, SIG_IGN) != SIG_IGN;
+    if (foreground) {
+	(void) signal (SIGINT, (sig_type)abort_gzip);
+    }
+#ifdef SIGTERM
+    if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGTERM, (sig_type)abort_gzip);
+    }
+#endif
+#ifdef SIGHUP
+    if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGHUP,  (sig_type)abort_gzip);
+    }
+#endif
+
+    strncpy(z_suffix, Z_SUFFIX, sizeof(z_suffix)-1);
+    z_len = strlen(z_suffix);
+
+    to_stdout = 1;
+
+    /* Allocate all global buffers (for DYN_ALLOC option) */
+    ALLOC(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+    ALLOC(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+    ALLOC(ush, d_buf,  DIST_BUFSIZE);
+    ALLOC(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    ALLOC(ush, tab_prefix, 1L<<BITS);
+#else
+    ALLOC(ush, tab_prefix0, 1L<<(BITS-1));
+    ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+    /* And get to work */
+	treat_stdin();
+    do_exit(exit_code);
+    return exit_code; /* just to avoid lint warning */
+}
+
+/* ========================================================================
+ * Compress or decompress stdin
+ */
+local void treat_stdin()
+{
+	SET_BINARY_MODE(fileno(stdout));
+    strcpy(ifname, "stdin");
+    strcpy(ofname, "stdout");
+
+    /* Get the time stamp on the input file. */
+    time_stamp = 0; /* time unknown by default */
+
+    ifile_size = -1L; /* convention for unknown size */
+
+    clear_bufs(); /* clear input and output buffers */
+    to_stdout = 1;
+    part_nb = 0;
+
+    /* Actually do the compression/decompression. Loop over zipped members.
+     */
+	if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
+}
+
+/* ========================================================================
+ * Free all dynamically allocated variables and exit with the given code.
+ */
+local void do_exit(int exitcode)
+{
+    static int in_exit = 0;
+
+    if (in_exit) exit(exitcode);
+    in_exit = 1;
+    if (env != NULL)  free(env),  env  = NULL;
+    if (args != NULL) free((char*)args), args = NULL;
+    FREE(inbuf);
+    FREE(outbuf);
+    FREE(d_buf);
+    FREE(window);
+#ifndef MAXSEG_64K
+    FREE(tab_prefix);
+#else
+    FREE(tab_prefix0);
+    FREE(tab_prefix1);
+#endif
+    exit(exitcode);
+}
+/* trees.c -- output deflated data using Huffman coding
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ *  PURPOSE
+ *
+ *      Encode various sets of source values using variable-length
+ *      binary code trees.
+ *
+ *  DISCUSSION
+ *
+ *      The PKZIP "deflation" process uses several Huffman trees. The more
+ *      common source values are represented by shorter bit sequences.
+ *
+ *      Each code tree is stored in the ZIP file in a compressed form
+ *      which is itself a Huffman encoding of the lengths of
+ *      all the code strings (in ascending order by source values).
+ *      The actual code strings are reconstructed from the lengths in
+ *      the UNZIP process, as described in the "application note"
+ *      (APPNOTE.TXT) distributed as part of PKWARE's PKZIP program.
+ *
+ *  REFERENCES
+ *
+ *      Lynch, Thomas J.
+ *          Data Compression:  Techniques and Applications, pp. 53-55.
+ *          Lifetime Learning Publications, 1985.  ISBN 0-534-03418-7.
+ *
+ *      Storer, James A.
+ *          Data Compression:  Methods and Theory, pp. 49-50.
+ *          Computer Science Press, 1988.  ISBN 0-7167-8156-5.
+ *
+ *      Sedgewick, R.
+ *          Algorithms, p290.
+ *          Addison-Wesley, 1983. ISBN 0-201-06672-6.
+ *
+ *  INTERFACE
+ *
+ *      void ct_init (ush *attr, int *methodp)
+ *          Allocate the match buffer, initialize the various tables and save
+ *          the location of the internal file attribute (ascii/binary) and
+ *          method (DEFLATE/STORE)
+ *
+ *      void ct_tally (int dist, int lc);
+ *          Save the match info and tally the frequency counts.
+ *
+ *      long flush_block (char *buf, ulg stored_len, int eof)
+ *          Determine the best encoding for the current block: dynamic trees,
+ *          static trees or store, and output the encoded block to the zip
+ *          file. Returns the total compressed length for the file so far.
+ *
+ */
+
+#include <ctype.h>
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Constants
+ */
+
+#define MAX_BITS 15
+/* All codes must not exceed MAX_BITS bits */
+
+#define MAX_BL_BITS 7
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+#define LENGTH_CODES 29
+/* number of length codes, not counting the special END_BLOCK code */
+
+#define LITERALS  256
+/* number of literal bytes 0..255 */
+
+#define END_BLOCK 256
+/* end of block literal code */
+
+#define L_CODES (LITERALS+1+LENGTH_CODES)
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+#define D_CODES   30
+/* number of distance codes */
+
+#define BL_CODES  19
+/* number of codes used to transfer the bit lengths */
+
+
+local int near extra_lbits[LENGTH_CODES] /* extra bits for each length code */
+   = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+
+local int near extra_dbits[D_CODES] /* extra bits for each distance code */
+   = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
+
+local int near extra_blbits[BL_CODES]/* extra bits for each bit length code */
+   = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES    2
+/* The three kinds of block type */
+
+#ifndef LIT_BUFSIZE
+#  ifdef SMALL_MEM
+#    define LIT_BUFSIZE  0x2000
+#  else
+#  ifdef MEDIUM_MEM
+#    define LIT_BUFSIZE  0x4000
+#  else
+#    define LIT_BUFSIZE  0x8000
+#  endif
+#  endif
+#endif
+#ifndef DIST_BUFSIZE
+#  define DIST_BUFSIZE  LIT_BUFSIZE
+#endif
+/* Sizes of match buffers for literals/lengths and distances.  There are
+ * 4 reasons for limiting LIT_BUFSIZE to 64K:
+ *   - frequencies can be kept in 16 bit counters
+ *   - if compression is not successful for the first block, all input data is
+ *     still in the window so we can still emit a stored block even when input
+ *     comes from standard input.  (This can also be done for all blocks if
+ *     LIT_BUFSIZE is not greater than 32K.)
+ *   - if compression is not successful for a file smaller than 64K, we can
+ *     even emit a stored file instead of a stored block (saving 5 bytes).
+ *   - creating new Huffman trees less frequently may not provide fast
+ *     adaptation to changes in the input data statistics. (Take for
+ *     example a binary file with poorly compressible code followed by
+ *     a highly compressible string table.) Smaller buffer sizes give
+ *     fast adaptation but have of course the overhead of transmitting trees
+ *     more frequently.
+ *   - I can't count above 4
+ * The current code is general and allows DIST_BUFSIZE < LIT_BUFSIZE (to save
+ * memory at the expense of compression). Some optimizations would be possible
+ * if we rely on DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+#if LIT_BUFSIZE > INBUFSIZ
+    error cannot overlay l_buf and inbuf
+#endif
+
+#define REP_3_6      16
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+#define REPZ_3_10    17
+/* repeat a zero length 3-10 times  (3 bits of repeat count) */
+
+#define REPZ_11_138  18
+/* repeat a zero length 11-138 times  (7 bits of repeat count) */
+
+/* ===========================================================================
+ * Local data
+ */
+
+/* Data structure describing a single value and its code string. */
+typedef struct ct_data {
+    union {
+        ush  freq;       /* frequency count */
+        ush  code;       /* bit string */
+    } fc;
+    union {
+        ush  dad;        /* father node in Huffman tree */
+        ush  len;        /* length of bit string */
+    } dl;
+} ct_data;
+
+#define Freq fc.freq
+#define Code fc.code
+#define Dad  dl.dad
+#define Len  dl.len
+
+#define HEAP_SIZE (2*L_CODES+1)
+/* maximum heap size */
+
+local ct_data near dyn_ltree[HEAP_SIZE];   /* literal and length tree */
+local ct_data near dyn_dtree[2*D_CODES+1]; /* distance tree */
+
+local ct_data near static_ltree[L_CODES+2];
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see ct_init
+ * below).
+ */
+
+local ct_data near static_dtree[D_CODES];
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+local ct_data near bl_tree[2*BL_CODES+1];
+/* Huffman tree for the bit lengths */
+
+typedef struct tree_desc {
+    ct_data near *dyn_tree;      /* the dynamic tree */
+    ct_data near *static_tree;   /* corresponding static tree or NULL */
+    int     near *extra_bits;    /* extra bits for each code or NULL */
+    int     extra_base;          /* base index for extra_bits */
+    int     elems;               /* max number of elements in the tree */
+    int     max_length;          /* max bit length for the codes */
+    int     max_code;            /* largest code with non zero frequency */
+} tree_desc;
+
+local tree_desc near l_desc =
+{dyn_ltree, static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS, 0};
+
+local tree_desc near d_desc =
+{dyn_dtree, static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS, 0};
+
+local tree_desc near bl_desc =
+{bl_tree, (ct_data near *)0, extra_blbits, 0,      BL_CODES, MAX_BL_BITS, 0};
+
+
+local ush near bl_count[MAX_BITS+1];
+/* number of codes at each bit length for an optimal tree */
+
+local uch near bl_order[BL_CODES]
+   = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+local int near heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
+local int heap_len;               /* number of elements in the heap */
+local int heap_max;               /* element of largest frequency */
+/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+ * The same heap array is used to build all trees.
+ */
+
+local uch near depth[2*L_CODES+1];
+/* Depth of each subtree used as tie breaker for trees of equal frequency */
+
+local uch length_code[MAX_MATCH-MIN_MATCH+1];
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+local uch dist_code[512];
+/* distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+local int near base_length[LENGTH_CODES];
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+local int near base_dist[D_CODES];
+/* First normalized distance for each code (0 = distance of 1) */
+
+#define l_buf inbuf
+/* DECLARE(uch, l_buf, LIT_BUFSIZE);  buffer for literals or lengths */
+
+/* DECLARE(ush, d_buf, DIST_BUFSIZE); buffer for distances */
+
+local uch near flag_buf[(LIT_BUFSIZE/8)];
+/* flag_buf is a bit array distinguishing literals from lengths in
+ * l_buf, thus indicating the presence or absence of a distance.
+ */
+
+local unsigned last_lit;    /* running index in l_buf */
+local unsigned last_dist;   /* running index in d_buf */
+local unsigned last_flags;  /* running index in flag_buf */
+local uch flags;            /* current flags not yet saved in flag_buf */
+local uch flag_bit;         /* current bit used in flags */
+/* bits are filled in flags starting at bit 0 (least significant).
+ * Note: these flags are overkill in the current code since we don't
+ * take advantage of DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+
+local ulg opt_len;        /* bit length of current block with optimal trees */
+local ulg static_len;     /* bit length of current block with static trees */
+
+local ulg compressed_len; /* total bit length of compressed file */
+
+local ulg input_len;      /* total byte length of input file */
+/* input_len is for debugging only since we can get it by other means. */
+
+ush *file_type;        /* pointer to UNKNOWN, BINARY or ASCII */
+int *file_method;      /* pointer to DEFLATE or STORE */
+
+#ifdef DEBUG
+extern ulg bits_sent;  /* bit length of the compressed data */
+extern long isize;     /* byte length of input file */
+#endif
+
+extern long block_start;       /* window offset of current block */
+extern unsigned near strstart; /* window offset of current string */
+
+/* ===========================================================================
+ * Local (static) routines in this file.
+ */
+
+local void init_block     OF((void));
+local void pqdownheap     OF((ct_data near *tree, int k));
+local void gen_bitlen     OF((tree_desc near *desc));
+local void gen_codes      OF((ct_data near *tree, int max_code));
+local void build_tree     OF((tree_desc near *desc));
+local void scan_tree      OF((ct_data near *tree, int max_code));
+local void send_tree      OF((ct_data near *tree, int max_code));
+local int  build_bl_tree  OF((void));
+local void send_all_trees OF((int lcodes, int dcodes, int blcodes));
+local void compress_block OF((ct_data near *ltree, ct_data near *dtree));
+local void set_file_type  OF((void));
+
+
+#ifndef DEBUG
+#  define send_code(c, tree) send_bits(tree[c].Code, tree[c].Len)
+   /* Send a code of the given tree. c and tree must not have side effects */
+
+#else /* DEBUG */
+#  define send_code(c, tree) \
+     { if (verbose>1) fprintf(stderr,"\ncd %3d ",(c)); \
+       send_bits(tree[c].Code, tree[c].Len); }
+#endif
+
+#define d_code(dist) \
+   ((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
+/* Mapping from a distance to a distance code. dist is the distance - 1 and
+ * must not have side effects. dist_code[256] and dist_code[257] are never
+ * used.
+ */
+
+#define MAX(a,b) (a >= b ? a : b)
+/* the arguments must not have side effects */
+
+/* ===========================================================================
+ * Allocate the match buffer, initialize the various tables and save the
+ * location of the internal file attribute (ascii/binary) and method
+ * (DEFLATE/STORE).
+ */
+void ct_init(attr, methodp)
+    ush  *attr;   /* pointer to internal file attribute */
+    int  *methodp; /* pointer to compression method */
+{
+    int n;        /* iterates over tree elements */
+    int bits;     /* bit counter */
+    int length;   /* length value */
+    int code;     /* code value */
+    int dist;     /* distance index */
+
+    file_type = attr;
+    file_method = methodp;
+    compressed_len = input_len = 0L;
+        
+    if (static_dtree[0].Len != 0) return; /* ct_init already called */
+
+    /* Initialize the mapping length (0..255) -> length code (0..28) */
+    length = 0;
+    for (code = 0; code < LENGTH_CODES-1; code++) {
+        base_length[code] = length;
+        for (n = 0; n < (1<<extra_lbits[code]); n++) {
+            length_code[length++] = (uch)code;
+        }
+    }
+    Assert (length == 256, "ct_init: length != 256");
+    /* Note that the length 255 (match length 258) can be represented
+     * in two different ways: code 284 + 5 bits or code 285, so we
+     * overwrite length_code[255] to use the best encoding:
+     */
+    length_code[length-1] = (uch)code;
+
+    /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+    dist = 0;
+    for (code = 0 ; code < 16; code++) {
+        base_dist[code] = dist;
+        for (n = 0; n < (1<<extra_dbits[code]); n++) {
+            dist_code[dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "ct_init: dist != 256");
+    dist >>= 7; /* from now on, all distances are divided by 128 */
+    for ( ; code < D_CODES; code++) {
+        base_dist[code] = dist << 7;
+        for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
+            dist_code[256 + dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "ct_init: 256+dist != 512");
+
+    /* Construct the codes of the static literal tree */
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+    n = 0;
+    while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
+    while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
+    while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
+    while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
+    /* Codes 286 and 287 do not exist, but we must include them in the
+     * tree construction to get a canonical Huffman tree (longest code
+     * all ones)
+     */
+    gen_codes((ct_data near *)static_ltree, L_CODES+1);
+
+    /* The static distance tree is trivial: */
+    for (n = 0; n < D_CODES; n++) {
+        static_dtree[n].Len = 5;
+        static_dtree[n].Code = bi_reverse(n, 5);
+    }
+
+    /* Initialize the first block of the first file: */
+    init_block();
+}
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+local void init_block()
+{
+    int n; /* iterates over tree elements */
+
+    /* Initialize the trees. */
+    for (n = 0; n < L_CODES;  n++) dyn_ltree[n].Freq = 0;
+    for (n = 0; n < D_CODES;  n++) dyn_dtree[n].Freq = 0;
+    for (n = 0; n < BL_CODES; n++) bl_tree[n].Freq = 0;
+
+    dyn_ltree[END_BLOCK].Freq = 1;
+    opt_len = static_len = 0L;
+    last_lit = last_dist = last_flags = 0;
+    flags = 0; flag_bit = 1;
+}
+
+#define SMALLEST 1
+/* Index within the heap array of least frequent node in the Huffman tree */
+
+
+/* ===========================================================================
+ * Remove the smallest element from the heap and recreate the heap with
+ * one less element. Updates heap and heap_len.
+ */
+#define pqremove(tree, top) \
+{\
+    top = heap[SMALLEST]; \
+    heap[SMALLEST] = heap[heap_len--]; \
+    pqdownheap(tree, SMALLEST); \
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+#define smaller(tree, n, m) \
+   (tree[n].Freq < tree[m].Freq || \
+   (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+local void pqdownheap(tree, k)
+    ct_data near *tree;  /* the tree to restore */
+    int k;               /* node to move down */
+{
+    int v = heap[k];
+    int j = k << 1;  /* left son of k */
+    while (j <= heap_len) {
+        /* Set j to the smallest of the two sons: */
+        if (j < heap_len && smaller(tree, heap[j+1], heap[j])) j++;
+
+        /* Exit if v is smaller than both sons */
+        if (smaller(tree, v, heap[j])) break;
+
+        /* Exchange v with the smallest son */
+        heap[k] = heap[j];  k = j;
+
+        /* And continue down the tree, setting j to the left son of k */
+        j <<= 1;
+    }
+    heap[k] = v;
+}
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ *    above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ *     array bl_count contains the frequencies for each bit length.
+ *     The length opt_len is updated; static_len is also updated if stree is
+ *     not null.
+ */
+local void gen_bitlen(desc)
+    tree_desc near *desc; /* the tree descriptor */
+{
+    ct_data near *tree  = desc->dyn_tree;
+    int near *extra     = desc->extra_bits;
+    int base            = desc->extra_base;
+    int max_code        = desc->max_code;
+    int max_length      = desc->max_length;
+    ct_data near *stree = desc->static_tree;
+    int h;              /* heap index */
+    int n, m;           /* iterate over the tree elements */
+    int bits;           /* bit length */
+    int xbits;          /* extra bits */
+    ush f;              /* frequency */
+    int overflow = 0;   /* number of elements with bit length too large */
+
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+
+    /* In a first pass, compute the optimal bit lengths (which may
+     * overflow in the case of the bit length tree).
+     */
+    tree[heap[heap_max]].Len = 0; /* root of the heap */
+
+    for (h = heap_max+1; h < HEAP_SIZE; h++) {
+        n = heap[h];
+        bits = tree[tree[n].Dad].Len + 1;
+        if (bits > max_length) bits = max_length, overflow++;
+        tree[n].Len = (ush)bits;
+        /* We overwrite tree[n].Dad which is no longer needed */
+
+        if (n > max_code) continue; /* not a leaf node */
+
+        bl_count[bits]++;
+        xbits = 0;
+        if (n >= base) xbits = extra[n-base];
+        f = tree[n].Freq;
+        opt_len += (ulg)f * (bits + xbits);
+        if (stree) static_len += (ulg)f * (stree[n].Len + xbits);
+    }
+    if (overflow == 0) return;
+
+    Trace((stderr,"\nbit length overflow\n"));
+    /* This happens for example on obj2 and pic of the Calgary corpus */
+
+    /* Find the first bit length which could increase: */
+    do {
+        bits = max_length-1;
+        while (bl_count[bits] == 0) bits--;
+        bl_count[bits]--;      /* move one leaf down the tree */
+        bl_count[bits+1] += 2; /* move one overflow item as its brother */
+        bl_count[max_length]--;
+        /* The brother of the overflow item also moves one step up,
+         * but this does not affect bl_count[max_length]
+         */
+        overflow -= 2;
+    } while (overflow > 0);
+
+    /* Now recompute all bit lengths, scanning in increasing frequency.
+     * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+     * lengths instead of fixing only the wrong ones. This idea is taken
+     * from 'ar' written by Haruhiko Okumura.)
+     */
+    for (bits = max_length; bits != 0; bits--) {
+        n = bl_count[bits];
+        while (n != 0) {
+            m = heap[--h];
+            if (m > max_code) continue;
+            if (tree[m].Len != (unsigned) bits) {
+                Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+                opt_len += ((long)bits-(long)tree[m].Len)*(long)tree[m].Freq;
+                tree[m].Len = (ush)bits;
+            }
+            n--;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ *     zero code length.
+ */
+local void gen_codes (tree, max_code)
+    ct_data near *tree;        /* the tree to decorate */
+    int max_code;              /* largest code with non zero frequency */
+{
+    ush next_code[MAX_BITS+1]; /* next code value for each bit length */
+    ush code = 0;              /* running code value */
+    int bits;                  /* bit index */
+    int n;                     /* code index */
+
+    /* The distribution counts are first used to generate the code values
+     * without bit reversal.
+     */
+    for (bits = 1; bits <= MAX_BITS; bits++) {
+        next_code[bits] = code = (code + bl_count[bits-1]) << 1;
+    }
+    /* Check that the bit counts in bl_count are consistent. The last code
+     * must be all ones.
+     */
+    Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
+            "inconsistent bit counts");
+    Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+    for (n = 0;  n <= max_code; n++) {
+        int len = tree[n].Len;
+        if (len == 0) continue;
+        /* Now reverse the bits */
+        tree[n].Code = bi_reverse(next_code[len]++, len);
+
+        Tracec(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+             n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
+    }
+}
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ *     and corresponding code. The length opt_len is updated; static_len is
+ *     also updated if stree is not null. The field max_code is set.
+ */
+local void build_tree(desc)
+    tree_desc near *desc; /* the tree descriptor */
+{
+    ct_data near *tree   = desc->dyn_tree;
+    ct_data near *stree  = desc->static_tree;
+    int elems            = desc->elems;
+    int n, m;          /* iterate over heap elements */
+    int max_code = -1; /* largest code with non zero frequency */
+    int node = elems;  /* next internal node of the tree */
+
+    /* Construct the initial heap, with least frequent element in
+     * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
+     * heap[0] is not used.
+     */
+    heap_len = 0, heap_max = HEAP_SIZE;
+
+    for (n = 0; n < elems; n++) {
+        if (tree[n].Freq != 0) {
+            heap[++heap_len] = max_code = n;
+            depth[n] = 0;
+        } else {
+            tree[n].Len = 0;
+        }
+    }
+
+    /* The pkzip format requires that at least one distance code exists,
+     * and that at least one bit should be sent even if there is only one
+     * possible code. So to avoid special checks later on we force at least
+     * two codes of non zero frequency.
+     */
+    while (heap_len < 2) {
+        int new = heap[++heap_len] = (max_code < 2 ? ++max_code : 0);
+        tree[new].Freq = 1;
+        depth[new] = 0;
+        opt_len--; if (stree) static_len -= stree[new].Len;
+        /* new is 0 or 1 so it does not have extra bits */
+    }
+    desc->max_code = max_code;
+
+    /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
+     * establish sub-heaps of increasing lengths:
+     */
+    for (n = heap_len/2; n >= 1; n--) pqdownheap(tree, n);
+
+    /* Construct the Huffman tree by repeatedly combining the least two
+     * frequent nodes.
+     */
+    do {
+        pqremove(tree, n);   /* n = node of least frequency */
+        m = heap[SMALLEST];  /* m = node of next least frequency */
+
+        heap[--heap_max] = n; /* keep the nodes sorted by frequency */
+        heap[--heap_max] = m;
+
+        /* Create a new node father of n and m */
+        tree[node].Freq = tree[n].Freq + tree[m].Freq;
+        depth[node] = (uch) (MAX(depth[n], depth[m]) + 1);
+        tree[n].Dad = tree[m].Dad = (ush)node;
+#ifdef DUMP_BL_TREE
+        if (tree == bl_tree) {
+            fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
+                    node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
+        }
+#endif
+        /* and insert the new node in the heap */
+        heap[SMALLEST] = node++;
+        pqdownheap(tree, SMALLEST);
+
+    } while (heap_len >= 2);
+
+    heap[--heap_max] = heap[SMALLEST];
+
+    /* At this point, the fields freq and dad are set. We can now
+     * generate the bit lengths.
+     */
+    gen_bitlen((tree_desc near *)desc);
+
+    /* The field len is now set, we can generate the bit codes */
+    gen_codes ((ct_data near *)tree, max_code);
+}
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree. Updates opt_len to take into account the repeat
+ * counts. (The contribution of the bit length codes will be added later
+ * during the construction of bl_tree.)
+ */
+local void scan_tree (tree, max_code)
+    ct_data near *tree; /* the tree to be scanned */
+    int max_code;       /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    if (nextlen == 0) max_count = 138, min_count = 3;
+    tree[max_code+1].Len = (ush)0xffff; /* guard */
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            bl_tree[curlen].Freq += count;
+        } else if (curlen != 0) {
+            if (curlen != prevlen) bl_tree[curlen].Freq++;
+            bl_tree[REP_3_6].Freq++;
+        } else if (count <= 10) {
+            bl_tree[REPZ_3_10].Freq++;
+        } else {
+            bl_tree[REPZ_11_138].Freq++;
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+local void send_tree (tree, max_code)
+    ct_data near *tree; /* the tree to be scanned */
+    int max_code;       /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    /* tree[max_code+1].Len = -1; */  /* guard already set */
+    if (nextlen == 0) max_count = 138, min_count = 3;
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            do { send_code(curlen, bl_tree); } while (--count != 0);
+
+        } else if (curlen != 0) {
+            if (curlen != prevlen) {
+                send_code(curlen, bl_tree); count--;
+            }
+            Assert(count >= 3 && count <= 6, " 3_6?");
+            send_code(REP_3_6, bl_tree); send_bits(count-3, 2);
+
+        } else if (count <= 10) {
+            send_code(REPZ_3_10, bl_tree); send_bits(count-3, 3);
+
+        } else {
+            send_code(REPZ_11_138, bl_tree); send_bits(count-11, 7);
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+local int build_bl_tree()
+{
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    /* Determine the bit length frequencies for literal and distance trees */
+    scan_tree((ct_data near *)dyn_ltree, l_desc.max_code);
+    scan_tree((ct_data near *)dyn_dtree, d_desc.max_code);
+
+    /* Build the bit length tree: */
+    build_tree((tree_desc near *)(&bl_desc));
+    /* opt_len now includes the length of the tree representations, except
+     * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
+     */
+
+    /* Determine the number of bit length codes to send. The pkzip format
+     * requires that at least 4 bit length codes be sent. (appnote.txt says
+     * 3 but the actual value used is 4.)
+     */
+    for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
+        if (bl_tree[bl_order[max_blindex]].Len != 0) break;
+    }
+    /* Update opt_len to include the bit length tree and counts */
+    opt_len += 3*(max_blindex+1) + 5+5+4;
+    Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", opt_len, static_len));
+
+    return max_blindex;
+}
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+local void send_all_trees(lcodes, dcodes, blcodes)
+    int lcodes, dcodes, blcodes; /* number of codes for each tree */
+{
+    int rank;                    /* index in bl_order */
+
+    Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+    Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+            "too many codes");
+    Tracev((stderr, "\nbl counts: "));
+    send_bits(lcodes-257, 5); /* not +255 as stated in appnote.txt */
+    send_bits(dcodes-1,   5);
+    send_bits(blcodes-4,  4); /* not -3 as stated in appnote.txt */
+    for (rank = 0; rank < blcodes; rank++) {
+        Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+        send_bits(bl_tree[bl_order[rank]].Len, 3);
+    }
+    Tracev((stderr, "\nbl tree: sent %ld", bits_sent));
+
+    send_tree((ct_data near *)dyn_ltree, lcodes-1); /* send the literal tree */
+    Tracev((stderr, "\nlit tree: sent %ld", bits_sent));
+
+    send_tree((ct_data near *)dyn_dtree, dcodes-1); /* send the distance tree */
+    Tracev((stderr, "\ndist tree: sent %ld", bits_sent));
+}
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and output the encoded block to the zip file. This function
+ * returns the total compressed length for the file so far.
+ */
+ulg flush_block(buf, stored_len, eof)
+    char *buf;        /* input block, or NULL if too old */
+    ulg stored_len;   /* length of input block */
+    int eof;          /* true if this is the last block for a file */
+{
+    ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    flag_buf[last_flags] = flags; /* Save the flags for the last 8 items */
+
+     /* Check if the file is ascii or binary */
+    if (*file_type == (ush)UNKNOWN) set_file_type();
+
+    /* Construct the literal and distance trees */
+    build_tree((tree_desc near *)(&l_desc));
+    Tracev((stderr, "\nlit data: dyn %ld, stat %ld", opt_len, static_len));
+
+    build_tree((tree_desc near *)(&d_desc));
+    Tracev((stderr, "\ndist data: dyn %ld, stat %ld", opt_len, static_len));
+    /* At this point, opt_len and static_len are the total bit lengths of
+     * the compressed block data, excluding the tree representations.
+     */
+
+    /* Build the bit length tree for the above two trees, and get the index
+     * in bl_order of the last bit length code to send.
+     */
+    max_blindex = build_bl_tree();
+
+    /* Determine the best encoding. Compute first the block length in bytes */
+    opt_lenb = (opt_len+3+7)>>3;
+    static_lenb = (static_len+3+7)>>3;
+    input_len += stored_len; /* for debugging only */
+
+    Trace((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u dist %u ",
+            opt_lenb, opt_len, static_lenb, static_len, stored_len,
+            last_lit, last_dist));
+
+    if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
+
+    /* If compression failed and this is the first and last block,
+     * and if the zip file can be seeked (to rewrite the local header),
+     * the whole file is transformed into a stored file:
+     */
+#ifdef FORCE_METHOD
+#else
+    if (stored_len <= opt_lenb && eof && compressed_len == 0L && seekable()) {
+#endif
+        /* Since LIT_BUFSIZE <= 2*WSIZE, the input data must be there: */
+        if (buf == (char*)0) error ("block vanished");
+
+        copy_block(buf, (unsigned)stored_len, 0); /* without header */
+        compressed_len = stored_len << 3;
+        *file_method = STORED;
+
+#ifdef FORCE_METHOD
+#else
+    } else if (stored_len+4 <= opt_lenb && buf != (char*)0) {
+                       /* 4: two words for the lengths */
+#endif
+        /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+         * Otherwise we can't have processed more than WSIZE input bytes since
+         * the last block flush, because compression would have been
+         * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+         * transform a block into a stored block.
+         */
+        send_bits((STORED_BLOCK<<1)+eof, 3);  /* send block type */
+        compressed_len = (compressed_len + 3 + 7) & ~7L;
+        compressed_len += (stored_len + 4) << 3;
+
+        copy_block(buf, (unsigned)stored_len, 1); /* with header */
+
+#ifdef FORCE_METHOD
+#else
+    } else if (static_lenb == opt_lenb) {
+#endif
+        send_bits((STATIC_TREES<<1)+eof, 3);
+        compress_block((ct_data near *)static_ltree, (ct_data near *)static_dtree);
+        compressed_len += 3 + static_len;
+    } else {
+        send_bits((DYN_TREES<<1)+eof, 3);
+        send_all_trees(l_desc.max_code+1, d_desc.max_code+1, max_blindex+1);
+        compress_block((ct_data near *)dyn_ltree, (ct_data near *)dyn_dtree);
+        compressed_len += 3 + opt_len;
+    }
+    Assert (compressed_len == bits_sent, "bad compressed size");
+    init_block();
+
+    if (eof) {
+        Assert (input_len == isize, "bad input size");
+        bi_windup();
+        compressed_len += 7;  /* align on byte boundary */
+    }
+    Tracev((stderr,"\ncomprlen %lu(%lu) ", compressed_len>>3,
+           compressed_len-7*eof));
+
+    return compressed_len >> 3;
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+int ct_tally (dist, lc)
+    int dist;  /* distance of matched string */
+    int lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
+{
+    l_buf[last_lit++] = (uch)lc;
+    if (dist == 0) {
+        /* lc is the unmatched char */
+        dyn_ltree[lc].Freq++;
+    } else {
+        /* Here, lc is the match length - MIN_MATCH */
+        dist--;             /* dist = match distance - 1 */
+        Assert((ush)dist < (ush)MAX_DIST &&
+               (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+               (ush)d_code(dist) < (ush)D_CODES,  "ct_tally: bad match");
+
+        dyn_ltree[length_code[lc]+LITERALS+1].Freq++;
+        dyn_dtree[d_code(dist)].Freq++;
+
+        d_buf[last_dist++] = (ush)dist;
+        flags |= flag_bit;
+    }
+    flag_bit <<= 1;
+
+    /* Output the flags if they fill a byte: */
+    if ((last_lit & 7) == 0) {
+        flag_buf[last_flags++] = flags;
+        flags = 0, flag_bit = 1;
+    }
+    /* Try to guess if it is profitable to stop the current block here */
+    if ((last_lit & 0xfff) == 0) {
+        /* Compute an upper bound for the compressed length */
+        ulg out_length = (ulg)last_lit*8L;
+        ulg in_length = (ulg)strstart-block_start;
+        int dcode;
+        for (dcode = 0; dcode < D_CODES; dcode++) {
+            out_length += (ulg)dyn_dtree[dcode].Freq*(5L+extra_dbits[dcode]);
+        }
+        out_length >>= 3;
+        Trace((stderr,"\nlast_lit %u, last_dist %u, in %ld, out ~%ld(%ld%%) ",
+               last_lit, last_dist, in_length, out_length,
+               100L - out_length*100L/in_length));
+        if (last_dist < last_lit/2 && out_length < in_length/2) return 1;
+    }
+    return (last_lit == LIT_BUFSIZE-1 || last_dist == DIST_BUFSIZE);
+    /* We avoid equality with LIT_BUFSIZE because of wraparound at 64K
+     * on 16 bit machines and because stored blocks are restricted to
+     * 64K-1 bytes.
+     */
+}
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+local void compress_block(ltree, dtree)
+    ct_data near *ltree; /* literal tree */
+    ct_data near *dtree; /* distance tree */
+{
+    unsigned dist;      /* distance of matched string */
+    int lc;             /* match length or unmatched char (if dist == 0) */
+    unsigned lx = 0;    /* running index in l_buf */
+    unsigned dx = 0;    /* running index in d_buf */
+    unsigned fx = 0;    /* running index in flag_buf */
+    uch flag = 0;       /* current flags */
+    unsigned code;      /* the code to send */
+    int extra;          /* number of extra bits to send */
+
+    if (last_lit != 0) do {
+        if ((lx & 7) == 0) flag = flag_buf[fx++];
+        lc = l_buf[lx++];
+        if ((flag & 1) == 0) {
+            send_code(lc, ltree); /* send a literal byte */
+            Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+        } else {
+            /* Here, lc is the match length - MIN_MATCH */
+            code = length_code[lc];
+            send_code(code+LITERALS+1, ltree); /* send the length code */
+            extra = extra_lbits[code];
+            if (extra != 0) {
+                lc -= base_length[code];
+                send_bits(lc, extra);        /* send the extra length bits */
+            }
+            dist = d_buf[dx++];
+            /* Here, dist is the match distance - 1 */
+            code = d_code(dist);
+            Assert (code < D_CODES, "bad d_code");
+
+            send_code(code, dtree);       /* send the distance code */
+            extra = extra_dbits[code];
+            if (extra != 0) {
+                dist -= base_dist[code];
+                send_bits(dist, extra);   /* send the extra distance bits */
+            }
+        } /* literal or match pair ? */
+        flag >>= 1;
+    } while (lx < last_lit);
+
+    send_code(END_BLOCK, ltree);
+}
+
+/* ===========================================================================
+ * Set the file type to ASCII or BINARY, using a crude approximation:
+ * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise.
+ * IN assertion: the fields freq of dyn_ltree are set and the total of all
+ * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
+ */
+local void set_file_type()
+{
+    int n = 0;
+    unsigned ascii_freq = 0;
+    unsigned bin_freq = 0;
+    while (n < 7)        bin_freq += dyn_ltree[n++].Freq;
+    while (n < 128)    ascii_freq += dyn_ltree[n++].Freq;
+    while (n < LITERALS) bin_freq += dyn_ltree[n++].Freq;
+    *file_type = bin_freq > (ascii_freq >> 2) ? BINARY : ASCII;
+    if (*file_type == BINARY && translate_eol) {
+        warn("-l used on binary file", "");
+    }
+}
+/* util.c -- utility functions for gzip support
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#else
+   extern int errno;
+#endif
+
+extern ulg crc_32_tab[];   /* crc table, defined below */
+
+/* ===========================================================================
+ * Copy input to output unchanged: zcat == cat with --force.
+ * IN assertion: insize bytes have already been read in inbuf.
+ */
+int copy(in, out)
+    int in, out;   /* input and output file descriptors */
+{
+    errno = 0;
+    while (insize != 0 && (int)insize != EOF) {
+	write_buf(out, (char*)inbuf, insize);
+	bytes_out += insize;
+	insize = read(in, (char*)inbuf, INBUFSIZ);
+    }
+    if ((int)insize == EOF && errno != 0) {
+	read_error();
+    }
+    bytes_in = bytes_out;
+    return OK;
+}
+
+/* ========================================================================
+ * Put string s in lower case, return s.
+ */
+char *strlwr(s)
+    char *s;
+{
+    char *t;
+    for (t = s; *t; t++) *t = tolow(*t);
+    return s;
+}
+
+#if defined(NO_STRING_H) && !defined(STDC_HEADERS)
+
+/* Provide missing strspn and strcspn functions. */
+
+#  ifndef __STDC__
+#    define const
+#  endif
+
+int strspn  OF((const char *s, const char *accept));
+int strcspn OF((const char *s, const char *reject));
+
+/* ========================================================================
+ * Return the length of the maximum initial segment
+ * of s which contains only characters in accept.
+ */
+int strspn(s, accept)
+    const char *s;
+    const char *accept;
+{
+    register const char *p;
+    register const char *a;
+    register int count = 0;
+
+    for (p = s; *p != '\0'; ++p) {
+	for (a = accept; *a != '\0'; ++a) {
+	    if (*p == *a) break;
+	}
+	if (*a == '\0') return count;
+	++count;
+    }
+    return count;
+}
+
+/* ========================================================================
+ * Return the length of the maximum inital segment of s
+ * which contains no characters from reject.
+ */
+int strcspn(s, reject)
+    const char *s;
+    const char *reject;
+{
+    register int count = 0;
+
+    while (*s != '\0') {
+	if (strchr(reject, *s++) != NULL) return count;
+	++count;
+    }
+    return count;
+}
+
+#endif /* NO_STRING_H */
+
+/* ========================================================================
+ * Add an environment variable (if any) before argv, and update argc.
+ * Return the expanded environment variable to be freed later, or NULL 
+ * if no options were added to argv.
+ */
+#define SEPARATOR	" \t"	/* separators in env variable */
+
+char *add_envopt(argcp, argvp, env)
+    int *argcp;          /* pointer to argc */
+    char ***argvp;       /* pointer to argv */
+    char *env;           /* name of environment variable */
+{
+    char *p;             /* running pointer through env variable */
+    char **oargv;        /* runs through old argv array */
+    char **nargv;        /* runs through new argv array */
+    int	 oargc = *argcp; /* old argc */
+    int  nargc = 0;      /* number of arguments in env variable */
+
+    env = (char*)getenv(env);
+    if (env == NULL) return NULL;
+
+    p = (char*)xmalloc(strlen(env)+1);
+    env = strcpy(p, env);                    /* keep env variable intact */
+
+    for (p = env; *p; nargc++ ) {            /* move through env */
+	p += strspn(p, SEPARATOR);	     /* skip leading separators */
+	if (*p == '\0') break;
+
+	p += strcspn(p, SEPARATOR);	     /* find end of word */
+	if (*p) *p++ = '\0';		     /* mark it */
+    }
+    if (nargc == 0) {
+	free(env);
+	return NULL;
+    }
+    *argcp += nargc;
+    /* Allocate the new argv array, with an extra element just in case
+     * the original arg list did not end with a NULL.
+     */
+    nargv = (char**)calloc(*argcp+1, sizeof(char *));
+    if (nargv == NULL) error("out of memory");
+    oargv  = *argvp;
+    *argvp = nargv;
+
+    /* Copy the program name first */
+    if (oargc-- < 0) error("argc<=0");
+    *(nargv++) = *(oargv++);
+
+    /* Then copy the environment args */
+    for (p = env; nargc > 0; nargc--) {
+	p += strspn(p, SEPARATOR);	     /* skip separators */
+	*(nargv++) = p;			     /* store start */
+	while (*p++) ;			     /* skip over word */
+    }
+
+    /* Finally copy the old args and add a NULL (usual convention) */
+    while (oargc--) *(nargv++) = *(oargv++);
+    *nargv = NULL;
+    return env;
+}
+/* ========================================================================
+ * Display compression ratio on the given stream on 6 characters.
+ */
+void display_ratio(num, den, file)
+    long num;
+    long den;
+    FILE *file;
+{
+    long ratio;  /* 1000 times the compression ratio */
+
+    if (den == 0) {
+	ratio = 0; /* no compression */
+    } else if (den < 2147483L) { /* (2**31 -1)/1000 */
+	ratio = 1000L*num/den;
+    } else {
+	ratio = num/(den/1000L);
+    }
+    if (ratio < 0) {
+	putc('-', file);
+	ratio = -ratio;
+    } else {
+	putc(' ', file);
+    }
+    fprintf(file, "%2ld.%1ld%%", ratio / 10L, ratio % 10L);
+}
+
+
+/* zip.c -- compress files to the gzip or pkzip format
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+local ulg crc;       /* crc on uncompressed file data */
+long header_bytes;   /* number of bytes in gzip header */
+
+/* ===========================================================================
+ * Deflate in to out.
+ * IN assertions: the input and output buffers are cleared.
+ *   The variables time_stamp and save_orig_name are initialized.
+ */
+int zip(in, out)
+    int in, out;            /* input and output file descriptors */
+{
+    uch  flags = 0;         /* general purpose bit flags */
+    ush  attr = 0;          /* ascii/binary flag */
+    ush  deflate_flags = 0; /* pkzip -es, -en or -ex equivalent */
+
+    ifd = in;
+    ofd = out;
+    outcnt = 0;
+
+    /* Write the header to the gzip file. See algorithm.doc for the format */
+
+    method = DEFLATED;
+    put_byte(GZIP_MAGIC[0]); /* magic header */
+    put_byte(GZIP_MAGIC[1]);
+    put_byte(DEFLATED);      /* compression method */
+
+    put_byte(flags);         /* general flags */
+    put_long(time_stamp);
+
+    /* Write deflated file to zip file */
+    crc = updcrc(0, 0);
+
+    bi_init(out);
+    ct_init(&attr, &method);
+    lm_init(&deflate_flags);
+
+    put_byte((uch)deflate_flags); /* extra flags */
+    put_byte(OS_CODE);            /* OS identifier */
+
+    header_bytes = (long)outcnt;
+
+    (void)deflate();
+
+    /* Write the crc and uncompressed size */
+    put_long(crc);
+    put_long(isize);
+    header_bytes += 2*sizeof(long);
+
+    flush_outbuf();
+    return OK;
+}
+
+
+/* ===========================================================================
+ * Read a new buffer from the current input file, perform end-of-line
+ * translation, and update the crc and input file size.
+ * IN assertion: size >= 2 (for end-of-line translation)
+ */
+int file_read(buf, size)
+    char *buf;
+    unsigned size;
+{
+    unsigned len;
+
+    Assert(insize == 0, "inbuf not empty");
+
+    len = read(ifd, buf, size);
+    if (len == (unsigned)(-1) || len == 0) return (int)len;
+
+    crc = updcrc((uch*)buf, len);
+    isize += (ulg)len;
+    return (int)len;
+}
+#endif
diff --git a/archival/tar.c b/archival/tar.c
new file mode 100644
index 000000000..03da96735
--- /dev/null
+++ b/archival/tar.c
@@ -0,0 +1,1425 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "tar" command, taken from sash.
+ * This allows creation, extraction, and listing of tar files.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+
+#include "internal.h"
+
+#ifdef BB_TAR
+
+const char tar_usage[] = 
+"Create, extract, or list files from a TAR file\n\n"
+"usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n"
+"\tc=create, x=extract, t=list contents, v=verbose,\n"
+"\tO=extract to stdout, f=tarfile or \"-\" for stdin\n";
+
+
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+
+/*
+ * Tar file constants.
+ */
+#define TAR_BLOCK_SIZE	512
+#define TAR_NAME_SIZE	100
+
+
+/*
+ * The POSIX (and basic GNU) tar header format.
+ * This structure is always embedded in a TAR_BLOCK_SIZE sized block
+ * with zero padding.  We only process this information minimally.
+ */
+typedef struct
+{
+	char	name[TAR_NAME_SIZE];
+	char	mode[8];
+	char	uid[8];
+	char	gid[8];
+	char	size[12];
+	char	mtime[12];
+	char	checkSum[8];
+	char	typeFlag;
+	char	linkName[TAR_NAME_SIZE];
+	char	magic[6];
+	char	version[2];
+	char	uname[32];
+	char	gname[32];
+	char	devMajor[8];
+	char	devMinor[8];
+	char	prefix[155];
+} TarHeader;
+
+#define	TAR_MAGIC	"ustar"
+#define	TAR_VERSION	"00"
+
+#define	TAR_TYPE_REGULAR	'0'
+#define	TAR_TYPE_HARD_LINK	'1'
+#define	TAR_TYPE_SOFT_LINK	'2'
+
+
+/*
+ * Static data.
+ */
+static	BOOL		listFlag;
+static	BOOL		extractFlag;
+static	BOOL		createFlag;
+static	BOOL		verboseFlag;
+static	BOOL		tostdoutFlag;
+
+static	BOOL		inHeader;
+static	BOOL		badHeader;
+static	BOOL		errorFlag;
+static	BOOL		skipFileFlag;
+static	BOOL		warnedRoot;
+static	BOOL		eofFlag;
+static	long		dataCc;
+static	int		outFd;
+static	char		outName[TAR_NAME_SIZE];
+
+
+/*
+ * Static data associated with the tar file.
+ */
+static	const char *	tarName;
+static	int		tarFd;
+static	dev_t		tarDev;
+static	ino_t		tarInode;
+
+
+/*
+ * Local procedures to restore files from a tar file.
+ */
+static	void	readTarFile(int fileCount, char ** fileTable);
+static	void	readData(const char * cp, int count);
+static	void	createPath(const char * name, int mode);
+static	long	getOctal(const char * cp, int len);
+
+static	void	readHeader(const TarHeader * hp,
+			int fileCount, char ** fileTable);
+
+
+/*
+ * Local procedures to save files into a tar file.
+ */
+static	void	saveFile(const char * fileName, BOOL seeLinks);
+
+static	void	saveRegularFile(const char * fileName,
+			const struct stat * statbuf);
+
+static	void	saveDirectory(const char * fileName,
+			const struct stat * statbuf);
+
+static	BOOL	wantFileName(const char * fileName,
+			int fileCount, char ** fileTable);
+
+static	void	writeHeader(const char * fileName,
+			const struct stat * statbuf);
+
+static	void	writeTarFile(int fileCount, char ** fileTable);
+static	void	writeTarBlock(const char * buf, int len);
+static	BOOL	putOctal(char * cp, int len, long value);
+extern  const char *    modeString(int mode);
+extern  const char *    timeString(time_t timeVal);
+extern  int             fullWrite(int fd, const char * buf, int len);
+extern  int             fullRead(int fd, char * buf, int len);
+
+
+extern int 
+tar_main(struct FileInfo *unused, int argc, char ** argv)
+{
+	const char *	options;
+
+	argc--;
+	argv++;
+
+	if (argc < 1)
+	{
+		fprintf(stderr, "%s", tar_usage);
+		return 1;
+	}
+
+
+	errorFlag = FALSE;
+	extractFlag = FALSE;
+	createFlag = FALSE;
+	listFlag = FALSE;
+	verboseFlag = FALSE;
+	tostdoutFlag = FALSE;
+	tarName = NULL;
+	tarDev = 0;
+	tarInode = 0;
+	tarFd = -1;
+
+	/*
+	 * Parse the options.
+	 */
+	options = *argv++;
+	argc--;
+
+	if (**argv == '-') {
+		for (; *options; options++)
+		{
+			switch (*options)
+			{
+				case 'f':
+					if (tarName != NULL)
+					{
+						fprintf(stderr, "Only one 'f' option allowed\n");
+
+						return 1;
+					}
+
+					tarName = *argv++;
+					argc--;
+
+					break;
+
+				case 't':
+					listFlag = TRUE;
+					break;
+
+				case 'x':
+					extractFlag = TRUE;
+					break;
+
+				case 'c':
+					createFlag = TRUE;
+					break;
+
+				case 'v':
+					verboseFlag = TRUE;
+					break;
+
+				case 'O':
+					tostdoutFlag = TRUE;
+					break;
+
+				case '-':
+					break;
+
+				default:
+					fprintf(stderr, "Unknown tar flag '%c'\n", *options);
+
+					return 1;
+			}
+		}
+	}
+
+	/*
+	 * Validate the options.
+	 */
+	if (extractFlag + listFlag + createFlag != 1)
+	{
+		fprintf(stderr, "Exactly one of 'c', 'x' or 't' must be specified\n");
+
+		return 1;
+	}
+
+	/*
+	 * Do the correct type of action supplying the rest of the
+	 * command line arguments as the list of files to process.
+	 */
+	if (createFlag)
+		writeTarFile(argc, argv);
+	else
+		readTarFile(argc, argv);
+	if (errorFlag)
+		fprintf(stderr, "\n");
+	return( errorFlag);
+}
+
+
+/*
+ * Read a tar file and extract or list the specified files within it.
+ * If the list is empty than all files are extracted or listed.
+ */
+static void
+readTarFile(int fileCount, char ** fileTable)
+{
+	const char *	cp;
+	int		cc;
+	int		inCc;
+	int		blockSize;
+	char		buf[BUF_SIZE];
+
+	skipFileFlag = FALSE;
+	badHeader = FALSE;
+	warnedRoot = FALSE;
+	eofFlag = FALSE;
+	inHeader = TRUE;
+	inCc = 0;
+	dataCc = 0;
+	outFd = -1;
+	blockSize = sizeof(buf);
+	cp = buf;
+
+	/*
+	 * Open the tar file for reading.
+	 */
+	if ( (tarName==NULL) || !strcmp( tarName, "-") ) {
+		tarFd = STDIN;
+	}
+	else 
+		tarFd = open(tarName, O_RDONLY);
+
+	if (tarFd < 0)
+	{
+		perror(tarName);
+		errorFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * Read blocks from the file until an end of file header block
+	 * has been seen.  (A real end of file from a read is an error.)
+	 */
+	while (!eofFlag)
+	{
+		/*
+		 * Read the next block of data if necessary.
+		 * This will be a large block if possible, which we will
+		 * then process in the small tar blocks.
+		 */
+		if (inCc <= 0)
+		{
+			cp = buf;
+			inCc = fullRead(tarFd, buf, blockSize);
+
+			if (inCc < 0)
+			{
+				perror(tarName);
+				errorFlag=TRUE;
+				goto done;
+			}
+
+			if (inCc == 0)
+			{
+				fprintf(stderr,
+					"Unexpected end of file from \"%s\"",
+					tarName);
+				errorFlag=TRUE;
+				goto done;
+			}
+		}
+
+		/*
+		 * If we are expecting a header block then examine it.
+		 */
+		if (inHeader)
+		{
+			readHeader((const TarHeader *) cp, fileCount, fileTable);
+
+			cp += TAR_BLOCK_SIZE;
+			inCc -= TAR_BLOCK_SIZE;
+
+			continue;
+		}
+
+		/*
+		 * We are currently handling the data for a file.
+		 * Process the minimum of the amount of data we have available
+		 * and the amount left to be processed for the file.
+		 */
+		cc = inCc;
+
+		if (cc > dataCc)
+			cc = dataCc;
+
+		readData(cp, cc);
+
+		/*
+		 * If the amount left isn't an exact multiple of the tar block
+		 * size then round it up to the next block boundary since there
+		 * is padding at the end of the file.
+		 */
+		if (cc % TAR_BLOCK_SIZE)
+			cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE);
+
+		cp += cc;
+		inCc -= cc;
+	}
+
+done:
+	/*
+	 * Close the tar file if needed.
+	 */
+	if ((tarFd >= 0) && (close(tarFd) < 0))
+		perror(tarName);
+
+	/*
+	 * Close the output file if needed.
+	 * This is only done here on a previous error and so no
+	 * message is required on errors.
+	 */
+	if (tostdoutFlag==FALSE) {
+	    if (outFd >= 0)
+		    (void) close(outFd);
+	}
+}
+
+
+/*
+ * Examine the header block that was just read.
+ * This can specify the information for another file, or it can mark
+ * the end of the tar file.
+ */
+static void
+readHeader(const TarHeader * hp, int fileCount, char ** fileTable)
+{
+	int		mode;
+	int		uid;
+	int		gid;
+	int		checkSum;
+	long		size;
+	time_t		mtime;
+	const char *	name;
+	int		cc;
+	BOOL		hardLink;
+	BOOL		softLink;
+
+	/*
+	 * If the block is completely empty, then this is the end of the
+	 * archive file.  If the name is null, then just skip this header.
+	 */
+	name = hp->name;
+
+	if (*name == '\0')
+	{
+		for (cc = TAR_BLOCK_SIZE; cc > 0; cc--)
+		{
+			if (*name++)
+				return;
+		}
+
+		eofFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * There is another file in the archive to examine.
+	 * Extract the encoded information and check it.
+	 */
+	mode = getOctal(hp->mode, sizeof(hp->mode));
+	uid = getOctal(hp->uid, sizeof(hp->uid));
+	gid = getOctal(hp->gid, sizeof(hp->gid));
+	size = getOctal(hp->size, sizeof(hp->size));
+	mtime = getOctal(hp->mtime, sizeof(hp->mtime));
+	checkSum = getOctal(hp->checkSum, sizeof(hp->checkSum));
+
+	if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0))
+	{
+		if (!badHeader)
+			fprintf(stderr, "Bad tar header, skipping\n");
+
+		badHeader = TRUE;
+
+		return;
+	}
+
+	badHeader = FALSE;
+	skipFileFlag = FALSE;
+
+	/*
+	 * Check for the file modes.
+	 */
+	hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) ||
+		(hp->typeFlag == TAR_TYPE_HARD_LINK - '0'));
+
+	softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) ||
+		(hp->typeFlag == TAR_TYPE_SOFT_LINK - '0'));
+
+	/*
+	 * Check for a directory or a regular file.
+	 */
+	if (name[strlen(name) - 1] == '/')
+		mode |= S_IFDIR;
+	else if ((mode & S_IFMT) == 0)
+		mode |= S_IFREG;
+
+	/*
+	 * Check for absolute paths in the file.
+	 * If we find any, then warn the user and make them relative.
+	 */
+	if (*name == '/')
+	{
+		while (*name == '/')
+			name++;
+
+		if (!warnedRoot)
+		{
+			fprintf(stderr,
+			"Absolute path detected, removing leading slashes\n");
+		}
+
+		warnedRoot = TRUE;
+	}
+
+	/*
+	 * See if we want this file to be restored.
+	 * If not, then set up to skip it.
+	 */
+	if (!wantFileName(name, fileCount, fileTable))
+	{
+		if (!hardLink && !softLink && S_ISREG(mode))
+		{
+			inHeader = (size == 0);
+			dataCc = size;
+		}
+
+		skipFileFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * This file is to be handled.
+	 * If we aren't extracting then just list information about the file.
+	 */
+	if (!extractFlag)
+	{
+		if (verboseFlag)
+		{
+			printf("%s %3d/%-d %9ld %s %s", modeString(mode),
+				uid, gid, size, timeString(mtime), name);
+		}
+		else
+			printf("%s", name);
+
+		if (hardLink)
+			printf(" (link to \"%s\")", hp->linkName);
+		else if (softLink)
+			printf(" (symlink to \"%s\")", hp->linkName);
+		else if (S_ISREG(mode))
+		{
+			inHeader = (size == 0);
+			dataCc = size;
+		}
+
+		printf("\n");
+
+		return;
+	}
+
+	/*
+	 * We really want to extract the file.
+	 */
+	if (verboseFlag)
+		printf("x %s\n", name);
+
+	if (hardLink)
+	{
+		if (link(hp->linkName, name) < 0)
+			perror(name);
+
+		return;
+	}
+
+	if (softLink)
+	{
+#ifdef	S_ISLNK
+		if (symlink(hp->linkName, name) < 0)
+			perror(name);
+#else
+		fprintf(stderr, "Cannot create symbolic links\n");
+#endif
+		return;
+	}
+
+	/*
+	 * If the file is a directory, then just create the path.
+	 */
+	if (S_ISDIR(mode))
+	{
+		createPath(name, mode);
+
+		return;
+	}
+
+	/*
+	 * There is a file to write.
+	 * First create the path to it if necessary with a default permission.
+	 */
+	createPath(name, 0777);
+
+	inHeader = (size == 0);
+	dataCc = size;
+
+	/*
+	 * Start the output file.
+	 */
+	if (tostdoutFlag==TRUE)
+	    outFd = STDOUT;
+	else
+	    outFd = open(name, O_WRONLY | O_CREAT | O_TRUNC, mode);
+
+	if (outFd < 0)
+	{
+		perror(name);
+		skipFileFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * If the file is empty, then that's all we need to do.
+	 */
+	if (size == 0 && tostdoutFlag == FALSE)
+	{
+		(void) close(outFd);
+		outFd = -1;
+	}
+}
+
+
+/*
+ * Handle a data block of some specified size that was read.
+ */
+static void
+readData(const char * cp, int count)
+{
+	/*
+	 * Reduce the amount of data left in this file.
+	 * If there is no more data left, then we need to read
+	 * the header again.
+	 */
+	dataCc -= count;
+
+	if (dataCc <= 0)
+		inHeader = TRUE;
+
+	/*
+	 * If we aren't extracting files or this file is being
+	 * skipped then do nothing more.
+	 */
+	if (!extractFlag || skipFileFlag)
+		return;
+
+	/*
+	 * Write the data to the output file.
+	 */
+	if (fullWrite(outFd, cp, count) < 0)
+	{
+		perror(outName);
+		if (tostdoutFlag==FALSE) {
+		    (void) close(outFd);
+		    outFd = -1;
+		}
+		skipFileFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * If the write failed, close the file and disable further
+	 * writes to this file.
+	 */
+	if (dataCc <= 0 && tostdoutFlag==FALSE)
+	{
+		if (close(outFd))
+			perror(outName);
+
+		outFd = -1;
+	}
+}
+
+
+/*
+ * Write a tar file containing the specified files.
+ */
+static void
+writeTarFile(int fileCount, char ** fileTable)
+{
+	struct	stat	statbuf;
+
+	/*
+	 * Make sure there is at least one file specified.
+	 */
+	if (fileCount <= 0)
+	{
+		fprintf(stderr, "No files specified to be saved\n");
+		errorFlag=TRUE;
+	}
+
+	/*
+	 * Create the tar file for writing.
+	 */
+	if ( (tarName==NULL) || !strcmp( tarName, "-") ) {
+		tostdoutFlag = TRUE;
+		tarFd = STDOUT;
+	}
+	else 
+		tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+
+	if (tarFd < 0)
+	{
+		perror(tarName);
+		errorFlag=TRUE;
+		return;
+	}
+
+	/*
+	 * Get the device and inode of the tar file for checking later.
+	 */
+	if (fstat(tarFd, &statbuf) < 0)
+	{
+		perror(tarName);
+		errorFlag = TRUE;
+		goto done;
+	}
+
+	tarDev = statbuf.st_dev;
+	tarInode = statbuf.st_ino;
+
+	/*
+	 * Append each file name into the archive file.
+	 * Follow symbolic links for these top level file names.
+	 */
+	while (!errorFlag && (fileCount-- > 0))
+	{
+		saveFile(*fileTable++, FALSE);
+	}
+
+	/*
+	 * Now write an empty block of zeroes to end the archive.
+	 */
+	writeTarBlock("", 1);
+
+
+done:
+	/*
+	 * Close the tar file and check for errors if it was opened.
+	 */
+	if ( (tostdoutFlag==FALSE) && (tarFd >= 0) && (close(tarFd) < 0))
+		perror(tarName);
+}
+
+
+/*
+ * Save one file into the tar file.
+ * If the file is a directory, then this will recursively save all of
+ * the files and directories within the directory.  The seeLinks
+ * flag indicates whether or not we want to see symbolic links as
+ * they really are, instead of blindly following them.
+ */
+static void
+saveFile(const char * fileName, BOOL seeLinks)
+{
+	int		status;
+	int		mode;
+	struct stat	statbuf;
+
+	if (verboseFlag)
+		printf("a %s\n", fileName);
+
+	/*
+	 * Check that the file name will fit in the header.
+	 */
+	if (strlen(fileName) >= TAR_NAME_SIZE)
+	{
+		fprintf(stderr, "%s: File name is too long\n", fileName);
+
+		return;
+	}
+
+	/*
+	 * Find out about the file.
+	 */
+#ifdef	S_ISLNK
+	if (seeLinks)
+		status = lstat(fileName, &statbuf);
+	else
+#endif
+		status = stat(fileName, &statbuf);
+
+	if (status < 0)
+	{
+		perror(fileName);
+
+		return;
+	}
+
+	/*
+	 * Make sure we aren't trying to save our file into itself.
+	 */
+	if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode))
+	{
+		fprintf(stderr, "Skipping saving of archive file itself\n");
+
+		return;
+	}
+
+	/*
+	 * Check the type of file.
+	 */
+	mode = statbuf.st_mode;
+
+	if (S_ISDIR(mode))
+	{
+		saveDirectory(fileName, &statbuf);
+
+		return;
+	}
+
+	if (S_ISREG(mode))
+	{
+		saveRegularFile(fileName, &statbuf);
+
+		return;
+	}
+
+	/*
+	 * The file is a strange type of file, ignore it.
+	 */
+	fprintf(stderr, "%s: not a directory or regular file\n", fileName);
+}
+
+
+/*
+ * Save a regular file to the tar file.
+ */
+static void
+saveRegularFile(const char * fileName, const struct stat * statbuf)
+{
+	BOOL		sawEof;
+	int		fileFd;
+	int		cc;
+	int		dataCount;
+	long		fullDataCount;
+	char		data[TAR_BLOCK_SIZE * 16];
+
+	/*
+	 * Open the file for reading.
+	 */
+	fileFd = open(fileName, O_RDONLY);
+
+	if (fileFd < 0)
+	{
+		perror(fileName);
+
+		return;
+	}
+
+	/*
+	 * Write out the header for the file.
+	 */
+	writeHeader(fileName, statbuf);
+
+	/*
+	 * Write the data blocks of the file.
+	 * We must be careful to write the amount of data that the stat
+	 * buffer indicated, even if the file has changed size.  Otherwise
+	 * the tar file will be incorrect.
+	 */
+	fullDataCount = statbuf->st_size;
+	sawEof = FALSE;
+
+	while (fullDataCount > 0)
+	{
+		/*
+		 * Get the amount to write this iteration which is
+		 * the minumum of the amount left to write and the
+		 * buffer size.
+		 */
+		dataCount = sizeof(data);
+
+		if (dataCount > fullDataCount)
+			dataCount = (int) fullDataCount;
+
+		/*
+		 * Read the data from the file if we haven't seen the
+		 * end of file yet.
+		 */
+		cc = 0;
+
+		if (!sawEof)
+		{
+			cc = fullRead(fileFd, data, dataCount);
+
+			if (cc < 0)
+			{
+				perror(fileName);
+
+				(void) close(fileFd);
+				errorFlag = TRUE;
+
+				return;
+			}
+
+			/*
+			 * If the file ended too soon, complain and set
+			 * a flag so we will zero fill the rest of it.
+			 */
+			if (cc < dataCount)
+			{
+				fprintf(stderr,
+					"%s: Short read - zero filling",
+					fileName);
+
+				sawEof = TRUE;
+			}
+		}
+
+		/*
+		 * Zero fill the rest of the data if necessary.
+		 */
+		if (cc < dataCount)
+			memset(data + cc, 0, dataCount - cc);
+
+		/*
+		 * Write the buffer to the TAR file.
+		 */
+		writeTarBlock(data, dataCount);
+
+		fullDataCount -= dataCount;
+	}
+
+	/*
+	 * Close the file.
+	 */
+	if ( (tostdoutFlag==FALSE) && close(fileFd) < 0)
+		fprintf(stderr, "%s: close: %s\n", fileName, strerror(errno));
+}
+
+
+/*
+ * Save a directory and all of its files to the tar file.
+ */
+static void
+saveDirectory(const char * dirName, const struct stat * statbuf)
+{
+	DIR *		dir;
+	struct dirent *	entry;
+	BOOL		needSlash;
+	char		fullName[PATH_LEN];
+
+	/*
+	 * Construct the directory name as used in the tar file by appending
+	 * a slash character to it.
+	 */
+	strcpy(fullName, dirName);
+	strcat(fullName, "/");
+
+	/*
+	 * Write out the header for the directory entry.
+	 */
+	writeHeader(fullName, statbuf);
+
+	/*
+	 * Open the directory.
+	 */
+	dir = opendir(dirName);
+
+	if (dir == NULL)
+	{
+		fprintf(stderr, "Cannot read directory \"%s\": %s\n",
+			dirName, strerror(errno));
+
+		return;
+	}
+
+	/*
+	 * See if a slash is needed.
+	 */
+	needSlash = (*dirName && (dirName[strlen(dirName) - 1] != '/'));
+
+	/*
+	 * Read all of the directory entries and check them,
+	 * except for the current and parent directory entries.
+	 */
+	while (!errorFlag && ((entry = readdir(dir)) != NULL))
+	{
+		if ((strcmp(entry->d_name, ".") == 0) ||
+			(strcmp(entry->d_name, "..") == 0))
+		{
+			continue;
+		}
+
+		/*
+		 * Build the full path name to the file.
+		 */
+		strcpy(fullName, dirName);
+
+		if (needSlash)
+			strcat(fullName, "/");
+
+		strcat(fullName, entry->d_name);
+
+		/*
+		 * Write this file to the tar file, noticing whether or not
+		 * the file is a symbolic link.
+		 */
+		saveFile(fullName, TRUE);
+	}
+
+	/*
+	 * All done, close the directory.
+	 */
+	closedir(dir);
+}
+
+
+/*
+ * Write a tar header for the specified file name and status.
+ * It is assumed that the file name fits.
+ */
+static void
+writeHeader(const char * fileName, const struct stat * statbuf)
+{
+	long			checkSum;
+	const unsigned char *	cp;
+	int			len;
+	TarHeader		header;
+
+	/*
+	 * Zero the header block in preparation for filling it in.
+	 */
+	memset((char *) &header, 0, sizeof(header));
+
+	/*
+	 * Fill in the header.
+	 */
+	strcpy(header.name, fileName);
+
+	strncpy(header.magic, TAR_MAGIC, sizeof(header.magic));
+	strncpy(header.version, TAR_VERSION, sizeof(header.version));
+
+	putOctal(header.mode, sizeof(header.mode), statbuf->st_mode & 0777);
+	putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
+	putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
+	putOctal(header.size, sizeof(header.size), statbuf->st_size);
+	putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
+
+	header.typeFlag = TAR_TYPE_REGULAR;
+
+	/*
+	 * Calculate and store the checksum.
+	 * This is the sum of all of the bytes of the header,
+	 * with the checksum field itself treated as blanks.
+	 */
+	memset(header.checkSum, ' ', sizeof(header.checkSum));
+
+	cp = (const unsigned char *) &header;
+	len = sizeof(header);
+	checkSum = 0;
+
+	while (len-- > 0)
+		checkSum += *cp++;
+
+	putOctal(header.checkSum, sizeof(header.checkSum), checkSum);
+
+	/*
+	 * Write the tar header.
+	 */
+	writeTarBlock((const char *) &header, sizeof(header));
+}
+
+
+/*
+ * Write data to one or more blocks of the tar file.
+ * The data is always padded out to a multiple of TAR_BLOCK_SIZE.
+ * The errorFlag static variable is set on an error.
+ */
+static void
+writeTarBlock(const char * buf, int len)
+{
+	int	partialLength;
+	int	completeLength;
+	char	fullBlock[TAR_BLOCK_SIZE];
+
+	/*
+	 * If we had a write error before, then do nothing more.
+	 */
+	if (errorFlag)
+		return;
+
+	/*
+	 * Get the amount of complete and partial blocks.
+	 */
+	partialLength = len % TAR_BLOCK_SIZE;
+	completeLength = len - partialLength;
+
+	/*
+	 * Write all of the complete blocks.
+	 */
+	if ((completeLength > 0) && !fullWrite(tarFd, buf, completeLength))
+	{
+		perror(tarName);
+
+		errorFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * If there are no partial blocks left, we are done.
+	 */
+	if (partialLength == 0)
+		return;
+
+	/*
+	 * Copy the partial data into a complete block, and pad the rest
+	 * of it with zeroes.
+	 */
+	memcpy(fullBlock, buf + completeLength, partialLength);
+	memset(fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength);
+
+	/*
+	 * Write the last complete block.
+	 */
+	if (!fullWrite(tarFd, fullBlock, TAR_BLOCK_SIZE))
+	{
+		perror(tarName);
+
+		errorFlag = TRUE;
+	}
+}
+
+
+/*
+ * Attempt to create the directories along the specified path, except for
+ * the final component.  The mode is given for the final directory only,
+ * while all previous ones get default protections.  Errors are not reported
+ * here, as failures to restore files can be reported later.
+ */
+static void
+createPath(const char * name, int mode)
+{
+	char *	cp;
+	char *	cpOld;
+	char	buf[TAR_NAME_SIZE];
+
+	strcpy(buf, name);
+
+	cp = strchr(buf, '/');
+
+	while (cp)
+	{
+		cpOld = cp;
+		cp = strchr(cp + 1, '/');
+
+		*cpOld = '\0';
+
+		if (mkdir(buf, cp ? 0777 : mode) == 0)
+			printf("Directory \"%s\" created\n", buf);
+
+		*cpOld = '/';
+	}
+}
+
+
+/*
+ * Read an octal value in a field of the specified width, with optional
+ * spaces on both sides of the number and with an optional null character
+ * at the end.  Returns -1 on an illegal format.
+ */
+static long
+getOctal(const char * cp, int len)
+{
+	long	val;
+
+	while ((len > 0) && (*cp == ' '))
+	{
+		cp++;
+		len--;
+	}
+
+	if ((len == 0) || !isOctal(*cp))
+		return -1;
+
+	val = 0;
+
+	while ((len > 0) && isOctal(*cp))
+	{
+		val = val * 8 + *cp++ - '0';
+		len--;
+	}
+
+	while ((len > 0) && (*cp == ' '))
+	{
+		cp++;
+		len--;
+	}
+
+	if ((len > 0) && *cp)
+		return -1;
+
+	return val;
+}
+
+
+/*
+ * Put an octal string into the specified buffer.
+ * The number is zero and space padded and possibly null padded.
+ * Returns TRUE if successful.
+ */
+static BOOL
+putOctal(char * cp, int len, long value)
+{
+	int	tempLength;
+	char *	tempString;
+	char	tempBuffer[32];
+
+	/*
+	 * Create a string of the specified length with an initial space,
+	 * leading zeroes and the octal number, and a trailing null.
+	 */
+	tempString = tempBuffer;
+
+	sprintf(tempString, " %0*lo", len - 2, value);
+
+	tempLength = strlen(tempString) + 1;
+
+	/*
+	 * If the string is too large, suppress the leading space.
+	 */
+	if (tempLength > len)
+	{
+		tempLength--;
+		tempString++;
+	}
+
+	/*
+	 * If the string is still too large, suppress the trailing null.
+	 */
+	if (tempLength > len)
+		tempLength--;
+
+	/*
+	 * If the string is still too large, fail.
+	 */
+	if (tempLength > len)
+		return FALSE;
+
+	/*
+	 * Copy the string to the field.
+	 */
+	memcpy(cp, tempString, len);
+
+	return TRUE;
+}
+
+
+/*
+ * See if the specified file name belongs to one of the specified list
+ * of path prefixes.  An empty list implies that all files are wanted.
+ * Returns TRUE if the file is selected.
+ */
+static BOOL
+wantFileName(const char * fileName, int fileCount, char ** fileTable)
+{
+	const char *	pathName;
+	int		fileLength;
+	int		pathLength;
+
+	/*
+	 * If there are no files in the list, then the file is wanted.
+	 */
+	if (fileCount == 0)
+		return TRUE;
+
+	fileLength = strlen(fileName);
+
+	/*
+	 * Check each of the test paths.
+	 */
+	while (fileCount-- > 0)
+	{
+		pathName = *fileTable++;
+
+		pathLength = strlen(pathName);
+
+		if (fileLength < pathLength)
+			continue;
+
+		if (memcmp(fileName, pathName, pathLength) != 0)
+			continue;
+
+		if ((fileLength == pathLength) ||
+			(fileName[pathLength] == '/'))
+		{
+			return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+
+
+
+/*
+ * Return the standard ls-like mode string from a file mode.
+ * This is static and so is overwritten on each call.
+ */
+const char *
+modeString(int mode)
+{
+	static	char	buf[12];
+
+	strcpy(buf, "----------");
+
+	/*
+	 * Fill in the file type.
+	 */
+	if (S_ISDIR(mode))
+		buf[0] = 'd';
+	if (S_ISCHR(mode))
+		buf[0] = 'c';
+	if (S_ISBLK(mode))
+		buf[0] = 'b';
+	if (S_ISFIFO(mode))
+		buf[0] = 'p';
+#ifdef	S_ISLNK
+	if (S_ISLNK(mode))
+		buf[0] = 'l';
+#endif
+#ifdef	S_ISSOCK
+	if (S_ISSOCK(mode))
+		buf[0] = 's';
+#endif
+
+	/*
+	 * Now fill in the normal file permissions.
+	 */
+	if (mode & S_IRUSR)
+		buf[1] = 'r';
+	if (mode & S_IWUSR)
+		buf[2] = 'w';
+	if (mode & S_IXUSR)
+		buf[3] = 'x';
+	if (mode & S_IRGRP)
+		buf[4] = 'r';
+	if (mode & S_IWGRP)
+		buf[5] = 'w';
+	if (mode & S_IXGRP)
+		buf[6] = 'x';
+	if (mode & S_IROTH)
+		buf[7] = 'r';
+	if (mode & S_IWOTH)
+		buf[8] = 'w';
+	if (mode & S_IXOTH)
+		buf[9] = 'x';
+
+	/*
+	 * Finally fill in magic stuff like suid and sticky text.
+	 */
+	if (mode & S_ISUID)
+		buf[3] = ((mode & S_IXUSR) ? 's' : 'S');
+	if (mode & S_ISGID)
+		buf[6] = ((mode & S_IXGRP) ? 's' : 'S');
+	if (mode & S_ISVTX)
+		buf[9] = ((mode & S_IXOTH) ? 't' : 'T');
+
+	return buf;
+}
+
+
+/*
+ * Get the time string to be used for a file.
+ * This is down to the minute for new files, but only the date for old files.
+ * The string is returned from a static buffer, and so is overwritten for
+ * each call.
+ */
+const char *
+timeString(time_t timeVal)
+{
+	time_t		now;
+	char *		str;
+	static	char	buf[26];
+
+	time(&now);
+
+	str = ctime(&timeVal);
+
+	strcpy(buf, &str[4]);
+	buf[12] = '\0';
+
+	if ((timeVal > now) || (timeVal < now - 365*24*60*60L))
+	{
+		strcpy(&buf[7], &str[20]);
+		buf[11] = '\0';
+	}
+
+	return buf;
+}
+
+
+
+/*
+ * Write all of the supplied buffer out to a file.
+ * This does multiple writes as necessary.
+ * Returns the amount written, or -1 on an error.
+ */
+int
+fullWrite(int fd, const char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = write(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+/*
+ * Read all of the supplied buffer from a file.
+ * This does multiple reads as necessary.
+ * Returns the amount read, or -1 on an error.
+ * A short read is returned on an end of file.
+ */
+int
+fullRead(int fd, char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = read(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		if (cc == 0)
+			break;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+
+#endif
+/* END CODE */
+
+
diff --git a/block_device.c b/block_device.c
new file mode 100644
index 000000000..87e7209c0
--- /dev/null
+++ b/block_device.c
@@ -0,0 +1,64 @@
+#include "internal.h"
+#include <dirent.h>
+#include <string.h>
+#include <stdio.h>
+
+const char	block_device_usage[] = "block_device mount-point";
+
+static dev_t *my_device;
+static char *my_device_name;
+
+int 
+match_mount(const struct FileInfo * i) {
+	if ( S_ISBLK(i->stat.st_mode) 
+	 && (i->stat.st_rdev == *my_device)) {
+		my_device_name=strdup(i->source);
+		return 1;
+	} else
+		return 0;
+}
+
+extern int
+block_device_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char *device_name = block_device(argv[1],i);
+	if ( device_name == NULL )
+		return -1;
+	printf("%s\n", device_name);
+	exit(0);
+}
+
+char * block_device(const char *name, struct FileInfo *i)
+{
+	struct stat	s;
+        char *buf;
+	int dinam=0;
+
+	if ( stat(name, &s) ) return (char *) NULL;
+	if (!i) {
+	  i=(struct FileInfo*)malloc(sizeof(struct FileInfo));
+	  dinam = 1;
+	}
+	memset((void *)i, 0, sizeof(struct FileInfo));
+	my_device=(dev_t *)malloc(sizeof(dev_t));
+	*my_device = s.st_dev;
+	my_device_name = NULL;
+	i->source = "/dev";
+	i->stat = s;
+	i->processDirectoriesAfterTheirContents=1;
+	descend(i, match_mount);
+	if (dinam) free(i);
+	if ( my_device_name ) {
+                buf = strdup(my_device_name);
+		free(my_device);
+		free(my_device_name);
+		return buf;
+        } else {
+		fprintf( stderr
+		,"Can't find special file for block device %d, %d.\n"
+		,(int) *my_device >> 8 & 0xff
+		,(int) *my_device & 0xff);
+		free(my_device);
+		return (char *) NULL;
+	}
+}
diff --git a/busybox.c b/busybox.c
new file mode 100644
index 000000000..b7b2b6009
--- /dev/null
+++ b/busybox.c
@@ -0,0 +1,230 @@
+#include "internal.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+static int been_there_done_that = 0;
+
+static const struct Applet applets[] = {
+
+#ifdef BB_BUSYBOX		//bin
+    {"busybox", busybox_main},
+#endif
+#ifdef BB_BLOCK_DEVICE		//sbin
+    {"block_device", block_device_main},
+#endif
+#ifdef BB_CAT			//bin
+    {"cat", cat_more_main},
+#endif
+#ifdef BB_CHGRP			//bin
+    {"chgrp", chgrp_main},
+#endif
+#ifdef BB_CHMOD			//bin
+    {"chmod", chmod_main},
+#endif
+#ifdef BB_CHOWN			//bin
+    {"chown", chown_main},
+#endif
+#ifdef BB_CHROOT		//sbin
+    {"chroot", chroot_main},
+#endif
+#ifdef BB_CLEAR			//usr/bin
+    {"clear", clear_main},
+#endif
+#ifdef BB_CP			//bin
+    {"cp", dyadic_main},
+#endif
+#ifdef BB_DATE			//bin
+    {"date", date_main},
+#endif
+#ifdef BB_DD			//bin
+    {"dd", dd_main},
+#endif
+#ifdef BB_DF			//bin
+    {"df", df_main},
+#endif
+#ifdef BB_DMESG			//bin
+    {"dmesg", dmesg_main},
+#endif
+#ifdef BB_DUTMP			//usr/sbin
+    {"dutmp", cat_more_main},
+#endif
+#ifdef BB_FALSE			//bin
+    {"false", false_main},
+#endif
+#ifdef BB_FDFLUSH		//bin
+    {"fdflush", monadic_main},
+#endif
+#ifdef BB_FIND			//usr/bin
+    {"find", find_main},
+#endif
+#ifdef BB_GREP			//bin
+    {"grep", grep_main},
+#endif
+#ifdef BB_HALT			//sbin
+    {"halt", halt_main},
+#endif
+#ifdef BB_INIT			//sbin
+    {"init", init_main},
+#endif
+#ifdef BB_KILL			//bin
+    {"kill", kill_main},
+#endif
+#ifdef BB_LENGTH		//usr/bin
+    {"length", length_main},
+#endif
+#ifdef BB_LN			//bin
+    {"ln", dyadic_main},
+#endif
+#ifdef BB_LOADKMAP		//sbin
+    {"loadkmap", loadkmap_main},
+#endif
+#ifdef BB_LOSETUP		//sbin
+    {"losetup", losetup_main},
+#endif
+#ifdef BB_LS			//bin
+    {"ls", ls_main},
+#endif
+#ifdef BB_MAKEDEVS		//sbin
+    {"makedevs", makedevs_main},
+#endif
+#ifdef BB_MATH			//usr/bin
+    {"math", math_main},
+#endif
+#ifdef BB_MKDIR			//bin
+    {"mkdir", monadic_main},
+#endif
+#ifdef BB_MKNOD			//bin
+    {"mknod", mknod_main},
+#endif
+#ifdef BB_MKSWAP		//sbin
+    {"mkswap", mkswap_main},
+#endif
+#ifdef BB_MNC			//usr/bin
+    {"mnc", mnc_main},
+#endif
+#ifdef BB_MORE			//bin
+    {"more", cat_more_main},
+#endif
+#ifdef BB_MOUNT			//bin
+    {"mount", mount_main},
+#endif
+#ifdef BB_MT			//bin
+    {"mt", mt_main},
+#endif
+#ifdef BB_MV			//bin
+    {"mv", dyadic_main},
+#endif
+#ifdef BB_PRINTF		//usr/bin
+    {"printf", printf_main},
+#endif
+#ifdef BB_PWD			//bin
+    {"pwd", pwd_main},
+#endif
+#ifdef BB_REBOOT		//sbin
+    {"reboot", reboot_main},
+#endif
+#ifdef BB_RM			//bin
+    {"rm", rm_main},
+#endif
+#ifdef BB_RMDIR			//bin
+    {"rmdir", monadic_main},
+#endif
+#ifdef BB_SLEEP			//bin
+    {"sleep", sleep_main},
+#endif
+#ifdef BB_TAR			//bin
+    {"tar", tar_main},
+#endif
+#ifdef BB_SWAPOFF		//sbin
+    {"swapoff", monadic_main},
+#endif
+#ifdef BB_SWAPON		//sbin
+    {"swapon", monadic_main},
+#endif
+#ifdef BB_SYNC			//bin
+    {"sync", sync_main},
+#endif
+#ifdef BB_TOUCH			//usr/bin
+    {"touch", monadic_main},
+#endif
+#ifdef BB_TRUE			//bin
+    {"true", true_main},
+#endif
+#ifdef BB_UMOUNT		//bin
+    {"umount", umount_main},
+#endif
+#ifdef BB_UPDATE		//sbin
+    {"update", update_main},
+#endif
+#ifdef BB_ZCAT			//bin
+    {"zcat", zcat_main},
+    {"gunzip", zcat_main},
+#endif
+#ifdef BB_GZIP			//bin
+    {"gzip", gzip_main},
+#endif
+    {0}
+};
+
+int main(int argc, char **argv)
+{
+    char *s = argv[0];
+    char *name = argv[0];
+    const struct Applet *a = applets;
+
+    while (*s != '\0') {
+	if (*s++ == '/')
+	    name = s;
+    }
+
+    while (a->name != 0) {
+	if (strcmp(name, a->name) == 0) {
+	    int status;
+
+	    status = ((*(a->main)) (argc, argv));
+	    if (status < 0) {
+		fprintf(stderr, "%s: %s\n", a->name, strerror(errno));
+	    }
+	    fprintf(stderr, "\n");
+	    exit(status);
+	}
+	a++;
+    }
+    return (busybox_main(argc, argv));
+}
+
+
+int busybox_main(int argc, char **argv)
+{
+    argc--;
+    argv++;
+
+    /* If we've already been here once, exit now */
+    if (been_there_done_that == 1)
+	return -1;
+    been_there_done_that = 1;
+
+    if (argc < 1) {
+	const struct Applet *a = applets;
+	fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n",
+		BB_VER, BB_BT);
+	fprintf(stderr, "Usage: busybox [function] [arguments]...\n");
+	fprintf(stderr,
+		"\n\tMost people will create a symlink to busybox for each\n"
+		"\tfunction name, and busybox will act like whatever you invoke it as.\n");
+	fprintf(stderr, "\nCurrently defined functions:\n");
+
+	if (a->name != 0) {
+	    fprintf(stderr, "%s", a->name);
+	    a++;
+	}
+	while (a->name != 0) {
+	    fprintf(stderr, ", %s", a->name);
+	    a++;
+	}
+	fprintf(stderr, "\n\n");
+	exit(-1);
+    } else
+	return (main(argc, argv));
+}
diff --git a/busybox.def.h b/busybox.def.h
new file mode 100644
index 000000000..ad6480a25
--- /dev/null
+++ b/busybox.def.h
@@ -0,0 +1,64 @@
+/*
+ * This file is parsed by sed. You MUST use single line comments.
+ * IE	//#define BB_BLAH
+ */
+
+//#define BB_BLOCK_DEVICE
+#define BB_BUSYBOX
+#define BB_CAT
+#define BB_CHGRP
+//#define BB_CHMOD
+//#define BB_CHOWN
+//#define BB_CHROOT
+//#define BB_CLEAR
+//#define BB_CP
+//#define BB_DATE
+//#define BB_DD
+//#define BB_DESCEND
+//#define BB_DF
+//#define BB_DMESG
+//#define BB_DUTMP
+//#define BB_DYADIC
+//#define BB_FALSE
+//#define BB_FDFLUSH
+//#define BB_FIND
+//#define BB_FINDMOUNT
+//#define BB_GREP
+////#define BB_HALT
+//#define BB_INIT
+//#define BB_KILL
+////#define BB_LENGTH
+//#define BB_LN
+//#define BB_LOADKMAP
+////#define BB_LOSETUP
+//#define BB_LS
+//#define BB_MAIN
+//#define BB_MAKEDEVS
+////#define BB_MATH
+//#define BB_MKDIR
+//#define BB_MKNOD
+////#define BB_MKSWAP
+//#define BB_MNC
+//#define BB_MONADIC
+//#define BB_MORE
+//#define BB_MOUNT
+////#define BB_MT
+//#define BB_MV
+//#define BB_POSTPROCESS
+//#define BB_PRINTF
+//#define BB_PWD
+//#define BB_REBOOT
+//#define BB_RM
+//#define BB_RMDIR
+//#define BB_SLEEP
+////#define BB_SWAPOFF
+//#define BB_SWAPON
+//#define BB_SYNC
+//#define BB_TAR
+//#define BB_TOUCH
+//#define BB_TRUE
+//#define BB_UMOUNT
+//#define BB_UPDATE
+//#define BB_UTILITY
+//#define BB_ZCAT
+//#define BB_GZIP
diff --git a/busybox.mkll b/busybox.mkll
new file mode 100755
index 000000000..e43a1ccb0
--- /dev/null
+++ b/busybox.mkll
@@ -0,0 +1,17 @@
+#!/bin/sh
+#Make busybox links list file
+
+DF="busybox.def.h"
+MF="main.c"
+
+LIST="$(sed -n '/^#define/{s/^#define //p;}' $DF)"
+
+	for def in ${LIST}; do
+			
+		set -- $(sed -n '/^#ifdef '$def'[ +|	+].*/,/^#endif/{s/.*\/\///p; /^{ /{ s/^{ "//; s/",.*$//p;}; }' $MF)
+		path=$1; shift
+		
+			for n in $@; do
+				echo "$path/$n"
+			done
+	done
diff --git a/busybox.spec b/busybox.spec
new file mode 100644
index 000000000..46bd7f484
--- /dev/null
+++ b/busybox.spec
@@ -0,0 +1,43 @@
+Name: busybox
+Version: 0.29alpha
+Release: 1
+Group: System/Utilities
+Summary: BusyBox is a tiny suite of Unix utilities in a multi-call binary.
+Copyright: GPL
+Packager : Erik Andersen <andersen@lineo.com>
+Conflicts: fileutils grep shellutils
+Buildroot: /tmp/%{Name}-%{Version}
+Source: busybox-0.29a1.tar.gz
+
+%Description
+BusyBox is a suite of "tiny" Unix utilities in a multi-call binary. It
+provides a pretty complete environment that fits on a floppy or in a
+ROM. Just add "ash" (Keith Almquists tiny Bourne shell clone) and "ae",
+and a kernel and you have a full system. This is used on the Debian
+install disk and in an internet router, and it makes a good environment
+for a "rescue" disk or any small or embedded system.
+
+%Prep
+%setup -q -n busybox
+
+%Build
+make
+
+%Install
+rm -rf $RPM_BUILD_ROOT
+mkdir -p $RPM_BUILD_ROOT/bin
+h=`cat busybox.links`
+
+for i in $h ; do
+	mkdir -p $RPM_BUILD_ROOT/`echo $i | sed -e 's/\(^.*\/\)\(.*\)/\1/g' `
+	(cd $RPM_BUILD_ROOT/bin ; ln -s ln `echo $i | sed -e 's/\(^.*\/\)\(.*\)/\2/g' ` ); 
+done 
+rm -f $RPM_BUILD_ROOT/bin/ln
+install -m 755 busybox $RPM_BUILD_ROOT/bin/ln
+
+%Clean
+rm -rf $RPM_BUILD_ROOT
+
+%Files 
+%defattr(-,root,root)
+/
diff --git a/busybox_functions.h b/busybox_functions.h
new file mode 100644
index 000000000..61fc48438
--- /dev/null
+++ b/busybox_functions.h
@@ -0,0 +1,11 @@
+#ifndef __BUSYBOX_FUNCTIONS_H__
+#define __BUSYBOX_FUNCTIONS_H__
+
+int
+mkswap(char *device_name, int pages, int check);
+/* pages = 0 for autodetection */
+
+int
+fdflush(char *filename);
+
+#endif /* __BUSYBOX_FUNCTIONS_H__ */
diff --git a/cat.c b/cat.c
new file mode 100644
index 000000000..12faf55ab
--- /dev/null
+++ b/cat.c
@@ -0,0 +1,54 @@
+/*
+ * Mini Cat implementation for busybox
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+
+const char cat_usage[] = "[file ...]";
+
+extern int cat_more_main(int argc, char **argv)
+{
+    int c;
+    FILE *file = stdin;
+
+    if (argc < 2) {
+	fprintf(stderr, "Usage: %s %s", *argv, cat_usage);
+	return 1;
+    }
+    argc--;
+    argv++;
+
+    while (argc-- > 0) {
+	file = fopen(*argv, "r");
+	if (file == NULL) {
+	    name_and_error(*argv);
+	    return 1;
+	}
+	while ((c = getc(file)) != EOF)
+	    putc(c, stdout);
+	fclose(file);
+	fflush(stdout);
+
+	argc--;
+	argv++;
+    }
+    return 0;
+}
diff --git a/chgrp.c b/chgrp.c
new file mode 100644
index 000000000..038c665dd
--- /dev/null
+++ b/chgrp.c
@@ -0,0 +1,89 @@
+/*
+ * Mini chgrp implementation for busybox
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <grp.h>
+#include <stdio.h>
+
+const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n"
+    "Change the group membership of each FILE to GROUP.\n"
+    "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
+
+int chgrp_main(int argc, char **argv)
+{
+    const char *cp;
+    int gid;
+    struct group *grp;
+    struct stat statBuf;
+
+    if (argc < 2) {
+	fprintf(stderr, "Usage: %s %s", *argv, chgrp_usage);
+	return 1;
+    }
+    argc--;
+    argv++;
+
+    cp = argv[1];
+    if (isDecimal(*cp)) {
+	gid = 0;
+	while (isDecimal(*cp))
+	    gid = gid * 10 + (*cp++ - '0');
+	if (*cp) {
+	    fprintf(stderr, "Bad gid value\n");
+	    return -1;
+	}
+    } else {
+	grp = getgrnam(cp);
+	if (grp == NULL) {
+	    fprintf(stderr, "Unknown group name\n");
+	    return -1;
+	}
+	gid = grp->gr_gid;
+    }
+    argc--;
+    argv++;
+    while (argc-- > 1) {
+	argv++;
+	if ((stat(*argv, &statBuf) < 0) ||
+	    (chown(*argv, statBuf.st_uid, gid) < 0)) {
+	    perror(*argv);
+	}
+    }
+    return 1;
+}
+
+
+
+
+
+
+
+
+
+#if 0
+int
+recursive(const char *fileName, BOOL followLinks, const char *pattern,
+	  int (*fileAction) (const char *fileName,
+			     const struct stat * statbuf),
+	  int (*dirAction) (const char *fileName,
+			    const struct stat * statbuf))
+
+#endif
diff --git a/chmod.c b/chmod.c
new file mode 100644
index 000000000..225c92d10
--- /dev/null
+++ b/chmod.c
@@ -0,0 +1,163 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include "internal.h"
+
+const char	chmod_usage[] = "chmod [-R] mode file [file ...]\n"
+"\nmode may be an octal integer representing the bit pattern for the\n"
+"\tnew mode, or a symbolic value matching the pattern\n"
+"\t[ugoa]{+|-|=}[rwxst] .\n"
+"\t\tu:\tUser\n"
+"\t\tg:\tGroup\n"
+"\t\to:\tOthers\n"
+"\t\ta:\tAll\n"
+"\n"
+"\n+:\tAdd privilege\n"
+"\n-:\tRemove privilege\n"
+"\n=:\tSet privilege\n"
+"\n"
+"\t\tr:\tRead\n"
+"\t\tw:\tWrite\n"
+"\t\tx:\tExecute\n"
+"\t\ts:\tSet User ID\n"
+"\t\tt:\t\"Sticky\" Text\n"
+"\n"
+"\tModes may be concatenated, as in \"u=rwx,g=rx,o=rx,-t,-s\n"
+"\n"
+"\t-R:\tRecursively change the mode of all files and directories\n"
+"\t\tunder the argument directory.";
+
+int
+parse_mode(
+ const char *	s
+,mode_t *		or
+,mode_t *		and
+,int *			group_execute)
+{
+	/* [ugoa]{+|-|=}[rwxstl] */
+	mode_t	mode = 0;
+	mode_t	groups = S_ISVTX;
+	char	type;
+	char	c;
+
+	do {
+		for ( ; ; ) {
+			switch ( c = *s++ ) {
+			case '\0':
+				return -1;
+			case 'u':
+				groups |= S_ISUID|S_IRWXU;
+				continue;
+			case 'g':
+				groups |= S_ISGID|S_IRWXG;
+				continue;
+			case 'o':
+				groups |= S_IRWXO;
+				continue;
+			case 'a':
+				groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+				continue;
+			case '+':
+			case '=':
+			case '-':
+				type = c;
+				if ( groups == S_ISVTX ) /* The default is "all" */
+					groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+				break;
+			default:
+				if ( c >= '0' && c <= '7' && mode == 0 && groups == S_ISVTX ) {
+					*and = 0;
+					*or = strtol(--s, 0, 010);
+					return 0;
+				}
+				else
+					return -1;
+			}
+			break;
+		}
+
+		while ( (c = *s++) != '\0' ) {
+			switch ( c ) {
+			case ',':
+				break;
+			case 'r':
+				mode |= S_IRUSR|S_IRGRP|S_IROTH;
+				continue;
+			case 'w':
+				mode |= S_IWUSR|S_IWGRP|S_IWOTH;
+				continue;
+			case 'x':
+				mode |= S_IXUSR|S_IXGRP|S_IXOTH;
+				continue;
+			case 's':
+				if ( group_execute != 0 && (groups & S_IRWXG) ) {
+					if ( *group_execute < 0 )
+						return -1;
+					if ( type != '-' ) {
+						mode |= S_IXGRP;
+						*group_execute = 1;
+					}
+				}
+				mode |= S_ISUID|S_ISGID;
+				continue;
+			case 'l':
+				if ( *group_execute > 0 )
+					return -1;
+				if ( type != '-' ) {
+					*and &= ~S_IXGRP;
+					*group_execute = -1;
+				}
+				mode |= S_ISGID;
+				groups |= S_ISGID;
+				continue;
+			case 't':
+				mode |= S_ISVTX;
+				continue;
+			default:
+				return -1;
+			}
+			break;
+		}
+		switch ( type ) {
+		case '=':
+			*and &= ~(groups);
+			/* fall through */
+		case '+':
+			*or |= mode & groups;
+			break;
+		case '-':
+			*and &= ~(mode & groups);
+			*or &= *and;
+			break;
+		}
+	} while ( c == ',' );
+	return 0;
+}
+
+extern int
+chmod_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->andWithMode = S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+	i->orWithMode = 0;
+
+	while ( argc >= 3 ) {
+		if ( parse_mode(argv[1], &i->orWithMode, &i->andWithMode, 0)
+		 == 0 ) {
+			argc--;
+			argv++;
+		}
+		else if ( strcmp(argv[1], "-R") == 0 ) {
+			i->recursive = 1;
+			argc--;
+			argv++;
+		}
+		else
+			break;
+	}
+
+	i->changeMode = 1;
+	i->complainInPostProcess = 1;
+
+	return monadic_main(i, argc, argv);
+}
diff --git a/chown.c b/chown.c
new file mode 100644
index 000000000..a611f92f1
--- /dev/null
+++ b/chown.c
@@ -0,0 +1,63 @@
+#include "internal.h"
+#include <pwd.h>
+#include <grp.h>
+#include <string.h>
+#include <stdio.h>
+
+const char	chown_usage[] = "chown [-R] user-name file [file ...]\n"
+"\n\tThe group list is kept in the file /etc/groups.\n\n"
+"\t-R:\tRecursively change the mode of all files and directories\n"
+"\t\tunder the argument directory.";
+
+int
+parse_user_name(const char * s, struct FileInfo * i)
+{
+	struct	passwd * 	p;
+	char *				dot = strchr(s, '.');
+
+	if (! dot )
+		dot = strchr(s, ':');
+
+	if ( dot )
+		*dot = '\0';
+
+	if ( (p = getpwnam(s)) == 0 ) {
+		fprintf(stderr, "%s: no such user.\n", s);
+		return 1;
+	}
+	i->userID = p->pw_uid;
+
+	if ( dot ) {
+		struct group *	g = getgrnam(++dot);
+		if ( g == 0 ) {
+			fprintf(stderr, "%s: no such group.\n", dot);
+			return 1;
+		}
+		i->groupID = g->gr_gid;
+		i->changeGroupID = 1;
+	}
+	return 0;
+}
+
+extern int
+chown_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int					status;
+
+	while ( argc >= 3 && strcmp("-R", argv[1]) == 0 ) {
+		i->recursive = 1;
+		argc--;
+		argv++;
+	}
+
+	if ( (status = parse_user_name(argv[1], i)) != 0 )
+		return status;
+
+	argv++;
+	argc--;
+
+	i->changeUserID = 1;
+	i->complainInPostProcess = 1;
+
+	return monadic_main(i, argc, argv);
+}
diff --git a/chroot.c b/chroot.c
new file mode 100644
index 000000000..ca0bfcf3f
--- /dev/null
+++ b/chroot.c
@@ -0,0 +1,32 @@
+#include "internal.h"
+#include <stdio.h>
+#include <unistd.h>
+
+
+const char chroot_usage[] = "chroot directory [command]\n"
+  "Run a command with special root directory.\n";
+
+extern int
+chroot_main (struct FileInfo *i, int argc, char **argv)
+{
+  char *prog;
+
+  if (chroot (argv[1]))
+    {
+      name_and_error ("cannot chroot to that directory");
+      return 1;
+    }
+  if (argc > 2)
+    {
+      execvp (argv[2], argv + 2);
+    }
+  else
+    {
+      prog = getenv ("SHELL");
+      if (!prog)
+	prog = "/bin/sh";
+      execlp (prog, prog, NULL);
+    }
+  name_and_error ("cannot exec");
+  return 1;
+}
diff --git a/clear.c b/clear.c
new file mode 100644
index 000000000..21a890c9e
--- /dev/null
+++ b/clear.c
@@ -0,0 +1,13 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	clear_usage[] = "clear\n"
+"\n"
+"\tClears the screen.\n";
+
+extern int
+clear_main(struct FileInfo * i, int argc, char * * argv)
+{
+	printf("\033[H\033[J");
+	return 0;
+}
diff --git a/console-tools/clear.c b/console-tools/clear.c
new file mode 100644
index 000000000..21a890c9e
--- /dev/null
+++ b/console-tools/clear.c
@@ -0,0 +1,13 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	clear_usage[] = "clear\n"
+"\n"
+"\tClears the screen.\n";
+
+extern int
+clear_main(struct FileInfo * i, int argc, char * * argv)
+{
+	printf("\033[H\033[J");
+	return 0;
+}
diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c
new file mode 100644
index 000000000..0f092d193
--- /dev/null
+++ b/console-tools/loadkmap.c
@@ -0,0 +1,68 @@
+#include "internal.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <linux/kd.h>
+#include <linux/keyboard.h>
+#include <sys/ioctl.h>
+
+
+const char			loadkmap_usage[] = "loadkmap\n"
+"\n"
+"\tLoad a binary keyboard translation table from standard input.\n"
+"\n";
+
+
+int
+loadkmap_main(struct FileInfo * info, int argc, char * * argv)
+{ 
+    struct kbentry ke;
+    u_short *ibuff;
+    int i,j,fd,readsz,pos,ibuffsz=NR_KEYS * sizeof(u_short);
+    char flags[MAX_NR_KEYMAPS],magic[]="bkeymap",buff[7];
+
+    fd = open("/dev/tty0", O_RDWR);
+    if (fd < 0) {
+	fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
+	return 1;
+    }
+
+    read(0,buff,7);
+    if (0 != strncmp(buff,magic,7)) {
+	fprintf(stderr, "This is not a valid binary keymap.\n");
+	return 1;
+    }
+   
+    if ( MAX_NR_KEYMAPS != read(0,flags,MAX_NR_KEYMAPS) ) {
+	fprintf(stderr, "Error reading keymap flags: %s\n", strerror(errno));
+	return 1;
+    }
+
+    ibuff=(u_short *) malloc(ibuffsz);
+    if (!ibuff) {
+	fprintf(stderr, "Out of memory.\n");
+	return 1;
+    }
+
+    for(i=0; i<MAX_NR_KEYMAPS; i++) {
+	if (flags[i]==1){
+	    pos=0;
+	    while (pos < ibuffsz) {
+		if ( (readsz = read(0,ibuff+pos,ibuffsz-pos)) < 0 ) {
+		    fprintf(stderr, "Error reading keymap: %s\n", 
+			strerror(errno));
+		    return 1;
+	        }
+		pos += readsz;
+	    }
+	    for(j=0; j<NR_KEYS; j++) {
+		ke.kb_index = j;
+		ke.kb_table = i;
+		ke.kb_value = ibuff[j];
+		ioctl(fd, KDSKBENT, &ke);
+	    }
+	}
+    }
+    close (fd);
+    return 0;
+}
diff --git a/coreutils/cat.c b/coreutils/cat.c
new file mode 100644
index 000000000..12faf55ab
--- /dev/null
+++ b/coreutils/cat.c
@@ -0,0 +1,54 @@
+/*
+ * Mini Cat implementation for busybox
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+
+const char cat_usage[] = "[file ...]";
+
+extern int cat_more_main(int argc, char **argv)
+{
+    int c;
+    FILE *file = stdin;
+
+    if (argc < 2) {
+	fprintf(stderr, "Usage: %s %s", *argv, cat_usage);
+	return 1;
+    }
+    argc--;
+    argv++;
+
+    while (argc-- > 0) {
+	file = fopen(*argv, "r");
+	if (file == NULL) {
+	    name_and_error(*argv);
+	    return 1;
+	}
+	while ((c = getc(file)) != EOF)
+	    putc(c, stdout);
+	fclose(file);
+	fflush(stdout);
+
+	argc--;
+	argv++;
+    }
+    return 0;
+}
diff --git a/coreutils/chgrp.c b/coreutils/chgrp.c
new file mode 100644
index 000000000..038c665dd
--- /dev/null
+++ b/coreutils/chgrp.c
@@ -0,0 +1,89 @@
+/*
+ * Mini chgrp implementation for busybox
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <grp.h>
+#include <stdio.h>
+
+const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n"
+    "Change the group membership of each FILE to GROUP.\n"
+    "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
+
+int chgrp_main(int argc, char **argv)
+{
+    const char *cp;
+    int gid;
+    struct group *grp;
+    struct stat statBuf;
+
+    if (argc < 2) {
+	fprintf(stderr, "Usage: %s %s", *argv, chgrp_usage);
+	return 1;
+    }
+    argc--;
+    argv++;
+
+    cp = argv[1];
+    if (isDecimal(*cp)) {
+	gid = 0;
+	while (isDecimal(*cp))
+	    gid = gid * 10 + (*cp++ - '0');
+	if (*cp) {
+	    fprintf(stderr, "Bad gid value\n");
+	    return -1;
+	}
+    } else {
+	grp = getgrnam(cp);
+	if (grp == NULL) {
+	    fprintf(stderr, "Unknown group name\n");
+	    return -1;
+	}
+	gid = grp->gr_gid;
+    }
+    argc--;
+    argv++;
+    while (argc-- > 1) {
+	argv++;
+	if ((stat(*argv, &statBuf) < 0) ||
+	    (chown(*argv, statBuf.st_uid, gid) < 0)) {
+	    perror(*argv);
+	}
+    }
+    return 1;
+}
+
+
+
+
+
+
+
+
+
+#if 0
+int
+recursive(const char *fileName, BOOL followLinks, const char *pattern,
+	  int (*fileAction) (const char *fileName,
+			     const struct stat * statbuf),
+	  int (*dirAction) (const char *fileName,
+			    const struct stat * statbuf))
+
+#endif
diff --git a/coreutils/chmod.c b/coreutils/chmod.c
new file mode 100644
index 000000000..225c92d10
--- /dev/null
+++ b/coreutils/chmod.c
@@ -0,0 +1,163 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include "internal.h"
+
+const char	chmod_usage[] = "chmod [-R] mode file [file ...]\n"
+"\nmode may be an octal integer representing the bit pattern for the\n"
+"\tnew mode, or a symbolic value matching the pattern\n"
+"\t[ugoa]{+|-|=}[rwxst] .\n"
+"\t\tu:\tUser\n"
+"\t\tg:\tGroup\n"
+"\t\to:\tOthers\n"
+"\t\ta:\tAll\n"
+"\n"
+"\n+:\tAdd privilege\n"
+"\n-:\tRemove privilege\n"
+"\n=:\tSet privilege\n"
+"\n"
+"\t\tr:\tRead\n"
+"\t\tw:\tWrite\n"
+"\t\tx:\tExecute\n"
+"\t\ts:\tSet User ID\n"
+"\t\tt:\t\"Sticky\" Text\n"
+"\n"
+"\tModes may be concatenated, as in \"u=rwx,g=rx,o=rx,-t,-s\n"
+"\n"
+"\t-R:\tRecursively change the mode of all files and directories\n"
+"\t\tunder the argument directory.";
+
+int
+parse_mode(
+ const char *	s
+,mode_t *		or
+,mode_t *		and
+,int *			group_execute)
+{
+	/* [ugoa]{+|-|=}[rwxstl] */
+	mode_t	mode = 0;
+	mode_t	groups = S_ISVTX;
+	char	type;
+	char	c;
+
+	do {
+		for ( ; ; ) {
+			switch ( c = *s++ ) {
+			case '\0':
+				return -1;
+			case 'u':
+				groups |= S_ISUID|S_IRWXU;
+				continue;
+			case 'g':
+				groups |= S_ISGID|S_IRWXG;
+				continue;
+			case 'o':
+				groups |= S_IRWXO;
+				continue;
+			case 'a':
+				groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+				continue;
+			case '+':
+			case '=':
+			case '-':
+				type = c;
+				if ( groups == S_ISVTX ) /* The default is "all" */
+					groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+				break;
+			default:
+				if ( c >= '0' && c <= '7' && mode == 0 && groups == S_ISVTX ) {
+					*and = 0;
+					*or = strtol(--s, 0, 010);
+					return 0;
+				}
+				else
+					return -1;
+			}
+			break;
+		}
+
+		while ( (c = *s++) != '\0' ) {
+			switch ( c ) {
+			case ',':
+				break;
+			case 'r':
+				mode |= S_IRUSR|S_IRGRP|S_IROTH;
+				continue;
+			case 'w':
+				mode |= S_IWUSR|S_IWGRP|S_IWOTH;
+				continue;
+			case 'x':
+				mode |= S_IXUSR|S_IXGRP|S_IXOTH;
+				continue;
+			case 's':
+				if ( group_execute != 0 && (groups & S_IRWXG) ) {
+					if ( *group_execute < 0 )
+						return -1;
+					if ( type != '-' ) {
+						mode |= S_IXGRP;
+						*group_execute = 1;
+					}
+				}
+				mode |= S_ISUID|S_ISGID;
+				continue;
+			case 'l':
+				if ( *group_execute > 0 )
+					return -1;
+				if ( type != '-' ) {
+					*and &= ~S_IXGRP;
+					*group_execute = -1;
+				}
+				mode |= S_ISGID;
+				groups |= S_ISGID;
+				continue;
+			case 't':
+				mode |= S_ISVTX;
+				continue;
+			default:
+				return -1;
+			}
+			break;
+		}
+		switch ( type ) {
+		case '=':
+			*and &= ~(groups);
+			/* fall through */
+		case '+':
+			*or |= mode & groups;
+			break;
+		case '-':
+			*and &= ~(mode & groups);
+			*or &= *and;
+			break;
+		}
+	} while ( c == ',' );
+	return 0;
+}
+
+extern int
+chmod_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->andWithMode = S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+	i->orWithMode = 0;
+
+	while ( argc >= 3 ) {
+		if ( parse_mode(argv[1], &i->orWithMode, &i->andWithMode, 0)
+		 == 0 ) {
+			argc--;
+			argv++;
+		}
+		else if ( strcmp(argv[1], "-R") == 0 ) {
+			i->recursive = 1;
+			argc--;
+			argv++;
+		}
+		else
+			break;
+	}
+
+	i->changeMode = 1;
+	i->complainInPostProcess = 1;
+
+	return monadic_main(i, argc, argv);
+}
diff --git a/coreutils/chown.c b/coreutils/chown.c
new file mode 100644
index 000000000..a611f92f1
--- /dev/null
+++ b/coreutils/chown.c
@@ -0,0 +1,63 @@
+#include "internal.h"
+#include <pwd.h>
+#include <grp.h>
+#include <string.h>
+#include <stdio.h>
+
+const char	chown_usage[] = "chown [-R] user-name file [file ...]\n"
+"\n\tThe group list is kept in the file /etc/groups.\n\n"
+"\t-R:\tRecursively change the mode of all files and directories\n"
+"\t\tunder the argument directory.";
+
+int
+parse_user_name(const char * s, struct FileInfo * i)
+{
+	struct	passwd * 	p;
+	char *				dot = strchr(s, '.');
+
+	if (! dot )
+		dot = strchr(s, ':');
+
+	if ( dot )
+		*dot = '\0';
+
+	if ( (p = getpwnam(s)) == 0 ) {
+		fprintf(stderr, "%s: no such user.\n", s);
+		return 1;
+	}
+	i->userID = p->pw_uid;
+
+	if ( dot ) {
+		struct group *	g = getgrnam(++dot);
+		if ( g == 0 ) {
+			fprintf(stderr, "%s: no such group.\n", dot);
+			return 1;
+		}
+		i->groupID = g->gr_gid;
+		i->changeGroupID = 1;
+	}
+	return 0;
+}
+
+extern int
+chown_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int					status;
+
+	while ( argc >= 3 && strcmp("-R", argv[1]) == 0 ) {
+		i->recursive = 1;
+		argc--;
+		argv++;
+	}
+
+	if ( (status = parse_user_name(argv[1], i)) != 0 )
+		return status;
+
+	argv++;
+	argc--;
+
+	i->changeUserID = 1;
+	i->complainInPostProcess = 1;
+
+	return monadic_main(i, argc, argv);
+}
diff --git a/coreutils/chroot.c b/coreutils/chroot.c
new file mode 100644
index 000000000..ca0bfcf3f
--- /dev/null
+++ b/coreutils/chroot.c
@@ -0,0 +1,32 @@
+#include "internal.h"
+#include <stdio.h>
+#include <unistd.h>
+
+
+const char chroot_usage[] = "chroot directory [command]\n"
+  "Run a command with special root directory.\n";
+
+extern int
+chroot_main (struct FileInfo *i, int argc, char **argv)
+{
+  char *prog;
+
+  if (chroot (argv[1]))
+    {
+      name_and_error ("cannot chroot to that directory");
+      return 1;
+    }
+  if (argc > 2)
+    {
+      execvp (argv[2], argv + 2);
+    }
+  else
+    {
+      prog = getenv ("SHELL");
+      if (!prog)
+	prog = "/bin/sh";
+      execlp (prog, prog, NULL);
+    }
+  name_and_error ("cannot exec");
+  return 1;
+}
diff --git a/coreutils/cp.c b/coreutils/cp.c
new file mode 100644
index 000000000..078a57c56
--- /dev/null
+++ b/coreutils/cp.c
@@ -0,0 +1,89 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/fcntl.h>
+#include <sys/param.h>
+#include <errno.h>
+
+const char  cp_usage[] = "cp [-r] source-file destination-file\n"
+"\t\tcp [-r] source-file [source-file ...] destination-directory\n"
+"\n"
+"\tCopy the source files to the destination.\n"
+"\n"
+"\t-r:\tRecursively copy all files and directories\n"
+"\t\tunder the argument directory.";
+
+extern int
+cp_fn(const struct FileInfo * i)
+{
+    int         sourceFd;
+    int         destinationFd;
+    const char * destination = i->destination;
+    struct stat destination_stat;
+    int         status;
+    char        buf[8192];
+    char        d[PATH_MAX];
+
+    if ( (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
+        if ( mkdir(destination, i->stat.st_mode & ~S_IFMT)
+         != 0 && errno != EEXIST ) {
+            name_and_error(destination);
+            return 1;
+        }
+        return 0;
+    }
+    if ( (sourceFd = open(i->source, O_RDONLY)) < 0 ) {
+        name_and_error(i->source);
+        return 1;
+    }
+    if ( stat(destination, &destination_stat) == 0 ) {
+        if ( i->stat.st_ino == destination_stat.st_ino
+         &&  i->stat.st_dev == destination_stat.st_dev ) {
+            fprintf(stderr
+            ,"copy of %s to %s would copy file to itself.\n"
+            ,i->source
+            ,destination);
+            close(sourceFd);
+            return 1;
+        }
+    }
+    /*
+     * If the destination is a directory, create a file within it.
+     */
+    if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
+		destination = join_paths(
+		 d
+		,i->destination
+		,&i->source[i->directoryLength]);
+
+        if ( stat(destination, &destination_stat) == 0 ) {
+            if ( i->stat.st_ino == destination_stat.st_ino
+             &&  i->stat.st_dev == destination_stat.st_dev ) {
+                fprintf(stderr
+                ,"copy of %s to %s would copy file to itself.\n"
+                ,i->source
+                ,destination);
+                close(sourceFd);
+                return 1;
+            }
+        }
+    }
+
+    destinationFd = creat(destination, i->stat.st_mode & 07777);
+
+    while ( (status = read(sourceFd, buf, sizeof(buf))) > 0 ) {
+        if ( write(destinationFd, buf, status) != status ) {
+            name_and_error(destination);
+            close(sourceFd);
+            close(destinationFd);
+            return 1;
+        }
+    }
+    close(sourceFd);
+    close(destinationFd);
+    if ( status < 0 ) {
+        name_and_error(i->source);
+        return 1;
+    }
+    return 0;
+}
diff --git a/coreutils/date.c b/coreutils/date.c
new file mode 100644
index 000000000..a52a9a4a8
--- /dev/null
+++ b/coreutils/date.c
@@ -0,0 +1,305 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdio.h>
+#include <getopt.h>
+
+
+/* This 'date' command supports only 2 time setting formats, 
+   all the GNU strftime stuff (its in libc, lets use it),
+   setting time using UTC and displaying int, as well as
+   an RFC 822 complient date output for shell scripting
+   mail commands */
+
+const char	date_usage[] = "date [-uR] [+FORMAT|+%f] [ [-s|-d] MMDDhhmm[[CC]YY]\n                | [[[[CCYY.]MM.DD-]hh:mm[:ss]]]] ]";
+
+static struct option const long_options[] =
+{
+  {"date", required_argument, NULL, 'd'},
+  /*  {"rfc-822", no_argument, NULL, 'R'},
+  {"set", required_argument, NULL, 's'},
+  {"uct", no_argument, NULL, 'u'},
+  {"utc", no_argument, NULL, 'u'},
+  {"universal", no_argument, NULL, 'u'}, */
+  {NULL, 0, NULL, 0}
+};
+  
+
+
+/* Input parsing code is always bulky - used heavy duty libc stuff as
+   much as possible, missed out a lot of bounds checking */
+
+/* Default input handling to save suprising some people */
+
+struct tm *
+date_conv_time(struct tm *tm_time, const char *t_string) {
+  int nr;
+
+  nr = sscanf(t_string, "%2d%2d%2d%2d%d", 
+	     &(tm_time->tm_mon),
+	     &(tm_time->tm_mday),
+	     &(tm_time->tm_hour),
+	     &(tm_time->tm_min),
+	     &(tm_time->tm_year));
+
+  if(nr < 4 || nr > 5) {
+    fprintf(stderr, "date: invalid date `%s'\n", t_string);
+    exit(1);
+  }
+
+  /* correct for century  - minor Y2K problem here? */
+  if(tm_time->tm_year >= 1900)
+    tm_time->tm_year -= 1900;
+  /* adjust date */
+  tm_time->tm_mon -= 1;
+	     
+  return(tm_time);
+
+}
+
+
+/* The new stuff for LRP */
+
+struct tm *
+date_conv_ftime(struct tm *tm_time, const char *t_string) {
+  struct tm itm_time, jtm_time, ktm_time, \
+    ltm_time, mtm_time, ntm_time;
+  
+  itm_time = *tm_time;
+  jtm_time = *tm_time;
+  ktm_time = *tm_time;
+  ltm_time = *tm_time;
+  mtm_time = *tm_time;
+  ntm_time = *tm_time;
+
+  /* Parse input and assign appropriately to tm_time */
+  
+  if(sscanf(t_string, "%d:%d:%d",
+	    &itm_time.tm_hour, 
+	    &itm_time.tm_min, 
+	    &itm_time.tm_sec) == 3 ) {
+
+    *tm_time = itm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d:%d", 
+		    &jtm_time.tm_hour, 
+		    &jtm_time.tm_min) == 2) {
+
+    *tm_time = jtm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d-%d:%d:%d",
+		    &ktm_time.tm_mon, 
+		    &ktm_time.tm_mday, 
+		    &ktm_time.tm_hour,
+		    &ktm_time.tm_min,
+		    &ktm_time.tm_sec) == 5) {
+
+    ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ktm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d-%d:%d",
+		    &ltm_time.tm_mon, 
+		    &ltm_time.tm_mday, 
+		    &ltm_time.tm_hour,
+		    &ltm_time.tm_min) == 4) {
+
+    ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ltm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
+		    &mtm_time.tm_year,
+		    &mtm_time.tm_mon, 
+		    &mtm_time.tm_mday, 
+		    &mtm_time.tm_hour,
+		    &mtm_time.tm_min,
+		    &mtm_time.tm_sec) == 6) {
+
+    mtm_time.tm_year -= 1900; /* Adjust years */
+    mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = mtm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d.%d-%d:%d",
+		    &ntm_time.tm_year,
+		    &ntm_time.tm_mon, 
+		    &ntm_time.tm_mday, 
+		    &ntm_time.tm_hour,
+		    &ntm_time.tm_min) == 5) { 
+    ntm_time.tm_year -= 1900; /* Adjust years */
+    ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ntm_time;
+    return(tm_time);
+
+  }
+
+  fprintf(stderr, "date: invalid date `%s'\n", t_string);
+
+  exit(1);
+
+}
+
+
+void
+date_err(void) {
+  fprintf(stderr, "date: only one date argument can be given at a time.\n");
+  exit(1);
+}
+
+int
+date_main(struct FileInfo * i, int argc, char * * argv)
+{
+  char *date_str = NULL;
+  char *date_fmt = NULL;
+  char *t_buff;
+  int set_time = 0;
+  int rfc822 = 0;
+  int utc = 0;
+  int use_arg = 0;
+  int n_args;
+  time_t tm; 
+  struct tm tm_time;
+  char optc;
+  
+  /* Interpret command line args */
+	
+
+  while ((optc = getopt_long (argc, argv, "d:Rs:u", long_options, NULL))
+         != EOF) {
+    switch (optc) {
+    case 0:
+      break;    
+
+    case 'R':
+      rfc822 = 1;
+      break;
+
+    case 's':
+      set_time = 1;
+      if(date_str != NULL) date_err();
+      date_str = optarg;
+      break;
+
+    case 'u':
+      utc = 1;
+      if (putenv ("TZ=UTC0") != 0) {
+	fprintf(stderr,"date: memory exhausted\n");
+	return(1);
+      }
+#if LOCALTIME_CACHE
+      tzset ();
+#endif                                                                                break;
+
+    case 'd':
+      use_arg = 1;
+      if(date_str != NULL) date_err();
+      date_str = optarg;
+      break;
+
+    default:
+      usage(date_usage);
+      break;
+    }
+  }
+
+
+  n_args = argc - optind; 
+
+  while (n_args--){
+    switch(argv[optind][0]) {
+      case '+':
+      /* Date format strings */
+      if(date_fmt != NULL) {
+	fprintf(stderr, "date: only one date format can be given.\n");
+	return(1);
+      }
+      date_fmt = &argv[optind][1];
+      break;
+
+      case '\0':
+      break;
+
+      default:
+      /* Anything left over must be a date string to set the time */
+      set_time = 1;
+      if(date_str != NULL) date_err();
+      date_str = argv[optind];
+      break;
+    }
+    optind++;
+  }
+
+
+  /* Now we have parsed all the information except the date format
+   which depends on whether the clock is being set or read */
+
+  time(&tm);
+  memcpy(&tm_time, localtime(&tm), sizeof(tm_time));
+  /* Zero out fields - take her back to midnight!*/
+  if(date_str != NULL) {
+    tm_time.tm_sec = 0;
+    tm_time.tm_min = 0;
+    tm_time.tm_hour = 0;
+  }
+
+  /* Process any date input to UNIX time since 1 Jan 1970 */
+  if(date_str != NULL) {
+
+    if(strchr(date_str, ':') != NULL) {
+      date_conv_ftime(&tm_time, date_str);
+    } else {
+      date_conv_time(&tm_time, date_str);
+    }
+
+    /* Correct any day of week and day of year etc fields */
+    tm = mktime(&tm_time);
+    if (tm < 0 ) {
+      fprintf(stderr, "date: invalid date `%s'\n", date_str);
+      exit(1);
+    }
+
+    /* if setting time, set it */
+    if(set_time) {
+      if( stime(&tm) < 0) {
+	fprintf(stderr, "date: can't set date.\n");
+	exit(1);
+      }
+    }
+  }
+  
+  /* Display output */
+
+  /* Deal with format string */
+  if(date_fmt == NULL) {
+    date_fmt = (rfc822
+                ? (utc
+                   ? "%a, %_d %b %Y %H:%M:%S GMT"
+                   : "%a, %_d %b %Y %H:%M:%S %z")
+                : "%a %b %e %H:%M:%S %Z %Y");
+
+  } else if ( *date_fmt == '\0' ) {
+    /* Imitate what GNU 'date' does with NO format string! */
+    printf ("\n");
+    return(0);
+  }
+
+  /* Handle special conversions */
+
+  if( strncmp( date_fmt, "%f", 2) == 0 ) {
+    date_fmt = "%Y.%m.%d-%H:%M:%S";
+  }
+
+  /* Print OUTPUT (after ALL that!) */
+  t_buff = malloc(201);
+  strftime(t_buff, 200, date_fmt, &tm_time);
+  printf("%s\n", t_buff);
+
+  return(0);
+
+}
diff --git a/coreutils/dd.c b/coreutils/dd.c
new file mode 100644
index 000000000..8f1b9d409
--- /dev/null
+++ b/coreutils/dd.c
@@ -0,0 +1,307 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "dd" command, originally taken from sash.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Majorly modified, and bugs fixed for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+#include "internal.h"
+#ifdef BB_DD
+
+const char dd_usage[] = 
+"Copy a file, converting and formatting according to options\n\
+\n\
+usage: [if=name] [of=name] [bs=n] [count=n]\n\
+\tif=FILE\tread from FILE instead of stdin\n\
+\tof=FILE\twrite to FILE instead of stout\n\
+\tbs=n\tread and write N bytes at a time\n\
+\tcount=n\tcopy only n input blocks\n\
+\n\
+BYTES may be suffixed: by k for x1024, b for x512, and w for x2.\n";
+
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+
+
+#define	PAR_NONE	0
+#define	PAR_IF		1
+#define	PAR_OF		2
+#define	PAR_BS		3
+#define	PAR_COUNT	4
+
+
+typedef	struct
+{
+	const char *	name;
+	int		value;
+} PARAM;
+
+
+static const PARAM	params[] =
+{
+	{"if",		PAR_IF},
+	{"of",		PAR_OF},
+	{"bs",		PAR_BS},
+	{"count",	PAR_COUNT},
+	{NULL,		PAR_NONE}
+};
+
+
+static	long	getNum(const char * cp);
+
+extern int
+dd_main (struct FileInfo *unused, int argc, char **argv)
+{
+	const char *	str;
+	const PARAM *	par;
+	const char *	inFile;
+	const char *	outFile;
+	char *		cp;
+	int		inFd;
+	int		outFd;
+	int		inCc=0;
+	int		outCc;
+	int		blockSize;
+	long		count;
+	long		intotal;
+	long		outTotal;
+	unsigned char*	buf;
+	unsigned char	localBuf[BUF_SIZE];
+
+	inFile = NULL;
+	outFile = NULL;
+	blockSize = 512;
+	count = 1;
+
+
+	while (--argc > 0)
+	{
+		str = *++argv;
+		cp = strchr(str, '=');
+
+		if (cp == NULL)
+		{
+			fprintf(stderr, "Bad dd argument\n");
+			goto usage;
+		}
+
+		*cp++ = '\0';
+
+		for (par = params; par->name; par++)
+		{
+			if (strcmp(str, par->name) == 0)
+				break;
+		}
+
+		switch (par->value)
+		{
+			case PAR_IF:
+				if (inFile)
+				{
+					fprintf(stderr, "Multiple input files illegal\n");
+					goto usage;
+				}
+	
+				//fprintf(stderr, "if=%s\n", cp);
+				inFile = cp;
+				break;
+
+			case PAR_OF:
+				if (outFile)
+				{
+					fprintf(stderr, "Multiple output files illegal\n");
+					goto usage;
+				}
+
+				//fprintf(stderr, "of=%s\n", cp);
+				outFile = cp;
+				break;
+
+			case PAR_BS:
+				blockSize = getNum(cp);
+				//fprintf(stderr, "bs=%d\n", blockSize);
+
+				if (blockSize <= 0)
+				{
+					fprintf(stderr, "Bad block size value\n");
+					goto usage;
+				}
+
+				break;
+
+			case PAR_COUNT:
+				count = getNum(cp);
+				//fprintf(stderr, "count=%ld\n", count);
+
+				if (count < 0)
+				{
+					fprintf(stderr, "Bad count value\n");
+					goto usage;
+				}
+
+				break;
+
+			default:
+				goto usage;
+		}
+	}
+
+	buf = localBuf;
+
+	if (blockSize > sizeof(localBuf))
+	{
+		buf = malloc(blockSize);
+
+		if (buf == NULL)
+		{
+			fprintf(stderr, "Cannot allocate buffer\n");
+			return 1;
+		}
+	}
+
+	intotal = 0;
+	outTotal = 0;
+
+	if (inFile == NULL)
+	    inFd = STDIN;
+	else
+	    inFd = open(inFile, 0);
+
+	if (inFd < 0)
+	{
+		perror(inFile);
+
+		if (buf != localBuf)
+			free(buf);
+
+		return 1;
+	}
+
+	if (outFile == NULL)
+	    outFd = STDOUT;
+	else
+	    outFd = creat(outFile, 0666);
+
+	if (outFd < 0)
+	{
+		perror(outFile);
+		close(inFd);
+
+		if (buf != localBuf)
+			free(buf);
+
+		return 1;
+	}
+
+	while ( outTotal < count*blockSize )
+	{
+		inCc = read(inFd, buf, blockSize);
+		if (inCc < 0) {
+		    perror(inFile);
+		    goto cleanup;
+		}
+		//fprintf(stderr, "read in =%d\n", inCc);
+		intotal += inCc;
+		cp = buf;
+
+
+		while ( intotal > outTotal )
+		{
+			if (outTotal+inCc > count*blockSize)
+			    inCc=count*blockSize-outTotal;
+			outCc = write(outFd, cp, inCc);
+			if (outCc < 0)
+			{
+				perror(outFile);
+				goto cleanup;
+			}
+			//fprintf(stderr, "wrote out =%d\n", outCc);
+
+			inCc -= outCc;
+			cp += outCc;
+			outTotal += outCc;
+			//fprintf(stderr, "outTotal=%ld\n", outTotal);
+		}
+	}
+
+	if (inCc < 0)
+		perror(inFile);
+
+cleanup:
+	close(inFd);
+
+	if (close(outFd) < 0)
+		perror(outFile);
+
+	if (buf != localBuf)
+		free(buf);
+
+	printf("%ld+%d records in\n", intotal / blockSize,
+		(intotal % blockSize) != 0);
+
+	printf("%ld+%d records out\n", outTotal / blockSize,
+		(outTotal % blockSize) != 0);
+	return 0;
+usage:
+	
+	fprintf(stderr, "%s", dd_usage);
+	return 1;
+}
+
+
+/*
+ * Read a number with a possible multiplier.
+ * Returns -1 if the number format is illegal.
+ */
+static long
+getNum(const char * cp)
+{
+	long	value;
+
+	if (!isDecimal(*cp))
+		return -1;
+
+	value = 0;
+
+	while (isDecimal(*cp))
+		value = value * 10 + *cp++ - '0';
+
+	switch (*cp++)
+	{
+		case 'k':
+			value *= 1024;
+			break;
+
+		case 'b':
+			value *= 512;
+			break;
+
+		case 'w':
+			value *= 2;
+			break;
+
+		case '\0':
+			return value;
+
+		default:
+			return -1;
+	}
+
+	if (*cp)
+		return -1;
+
+	return value;
+}
+
+#endif
+/* END CODE */
+
diff --git a/coreutils/df.c b/coreutils/df.c
new file mode 100644
index 000000000..a0692afc5
--- /dev/null
+++ b/coreutils/df.c
@@ -0,0 +1,103 @@
+#include "internal.h"
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/stat.h>
+#include <sys/vfs.h>
+
+const char	df_usage[] = "df [filesystem ...]\n"
+"\n"
+"\tPrint the filesystem space used and space available.\n";
+
+
+static int
+df(const char * device, const char * mountPoint)
+{
+	struct statfs	s;
+	long		blocks_used;
+	long		blocks_percent_used;
+
+	if ( statfs(mountPoint, &s) != 0 ) {
+		name_and_error(mountPoint);
+		return 1;
+	}
+	
+	if ( s.f_blocks > 0 ) {
+		blocks_used = s.f_blocks - s.f_bfree;
+		blocks_percent_used = (long)
+		 (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
+
+/*
+		printf(
+		 "%-20s %7ld %7ld  %7ld  %5ld%%   %s\n"
+		,device
+		,s.f_blocks
+		,s.f_blocks - s.f_bfree
+		,s.f_bavail
+		,blocks_percent_used
+		,mountPoint);
+*/
+
+		printf(
+		       "%-20s %7.0f %7.0f  %7.0f  %5ld%%   %s\n"
+		       ,device
+		       ,s.f_blocks * (s.f_bsize / 1024.0)
+		       ,(s.f_blocks - s.f_bfree)  * (s.f_bsize / 1024.0)
+		       ,s.f_bavail * (s.f_bsize / 1024.0)
+		       ,blocks_percent_used
+		       ,mountPoint);
+
+	}
+
+	return 0;
+}
+
+extern int
+df_main(struct FileInfo * i, int argc, char * * argv)
+{
+	static const char header[] =
+	 "Filesystem         1024-blocks  Used Available Capacity Mounted on\n";
+	printf(header);
+
+	if ( argc > 1 ) {
+		struct mntent *	mountEntry;
+		int				status;
+
+		while ( argc > 1 ) {
+			if ( (mountEntry = findMountPoint(argv[1], "/etc/mtab")) == 0
+			 && (mountEntry = findMountPoint(argv[1], "/proc/mounts")) == 0 )
+			{
+				fprintf(stderr, "%s: can't find mount point.\n"
+				,argv[1]);
+				return 1;
+			}
+			status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir);
+			if ( status != 0 )
+				return status;
+			argc--;
+			argv++;
+		}
+		return 0;
+	}
+	else {
+		FILE *		mountTable;
+		struct mntent *	mountEntry;
+
+		if ( (mountTable = setmntent("/etc/mtab", "r")) == 0
+		 && (mountTable = setmntent("/proc/mounts", "r")) == 0
+		) {
+			name_and_error("/etc/mtab");
+			return 1;
+		}
+
+		while ( (mountEntry = getmntent(mountTable)) != 0 ) {
+			int status = df(
+			 mountEntry->mnt_fsname
+			,mountEntry->mnt_dir);
+			if ( status != 0 )
+				return status;
+		}
+		endmntent(mountTable);
+	}
+	
+	return 0;
+}
diff --git a/coreutils/length.c b/coreutils/length.c
new file mode 100644
index 000000000..284bbfdf9
--- /dev/null
+++ b/coreutils/length.c
@@ -0,0 +1,13 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+const char			length_usage[] = "length string";
+
+int
+length_main(struct FileInfo * i, int argc, char * * argv)
+{
+	printf("%d\n", strlen(argv[1]));
+	return 0;
+}
diff --git a/coreutils/ln.c b/coreutils/ln.c
new file mode 100644
index 000000000..3e87b579e
--- /dev/null
+++ b/coreutils/ln.c
@@ -0,0 +1,52 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <errno.h>
+
+const char	ln_usage[] = "ln [-s] [-f] original-name additional-name\n"
+"\n"
+"\tAdd a new name that refers to the same file as \"original-name\"\n"
+"\n"
+"\t-s:\tUse a \"symbolic\" link, instead of a \"hard\" link.\n"
+"\t-f:\tRemove existing destination files.\n";
+
+int
+ln_fn(const struct FileInfo * i)
+{
+	int				status = 0;
+	char			d[PATH_MAX];
+	const char *	destination = i->destination;
+
+	if ( !i->makeSymbolicLink && (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
+		fprintf(stderr, "Please use \"ln -s\" to link directories.\n");
+		return 1;
+	}
+
+	/*
+	 * If the destination is a directory, create a file within it.
+	 */
+	if ( is_a_directory(i->destination) ) {
+			destination = join_paths(
+			 d
+			,i->destination
+			,&i->source[i->directoryLength]);
+	}
+
+	if ( i->force )
+		status = ( unlink(destination) && errno != ENOENT );
+
+	if ( status == 0 ) {
+		if ( i->makeSymbolicLink )
+			status = symlink(i->source, destination);
+		else
+			status = link(i->source, destination);
+	}
+
+	if ( status != 0 ) {
+		name_and_error(destination);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/coreutils/ls.c b/coreutils/ls.c
new file mode 100644
index 000000000..2566beea0
--- /dev/null
+++ b/coreutils/ls.c
@@ -0,0 +1,542 @@
+#include "internal.h"
+/*
+ * tiny-ls.c version 0.1.0: A minimalist 'ls'
+ * Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
+ * 
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * To achieve a small memory footprint, this version of 'ls' doesn't do any
+ * file sorting, and only has the most essential command line switches
+ * (i.e. the ones I couldn't live without :-) All features which involve
+ * linking in substantial chunks of libc can be disabled.
+ *
+ * Although I don't really want to add new features to this program to
+ * keep it small, I *am* interested to receive bug fixes and ways to make
+ * it more portable.
+ *
+ * KNOWN BUGS:
+ * 1. messy output if you mix files and directories on the command line
+ * 2. ls -l of a directory doesn't give "total <blocks>" header
+ * 3. ls of a symlink to a directory doesn't list directory contents
+ * 4. hidden files can make column width too large
+ * NON-OPTIMAL BEHAVIOUR:
+ * 1. autowidth reads directories twice
+ * 2. if you do a short directory listing without filetype characters
+ *    appended, there's no need to stat each one
+ * PORTABILITY:
+ * 1. requires lstat (BSD) - how do you do it without?
+ */
+
+#define FEATURE_USERNAME	/* show username/groupnames (libc6 uses NSS) */
+#define FEATURE_TIMESTAMPS	/* show file timestamps */
+#define FEATURE_AUTOWIDTH	/* calculate terminal & column widths */
+#define FEATURE_FILETYPECHAR	/* enable -p and -F */
+
+#undef	OP_BUF_SIZE	1024	/* leave undefined for unbuffered output */
+
+#define TERMINAL_WIDTH	80	/* use 79 if your terminal has linefold bug */
+#define	COLUMN_WIDTH	14	/* default if AUTOWIDTH not defined */
+#define COLUMN_GAP	2	/* includes the file type char, if present */
+
+/************************************************************************/
+
+#define HAS_REWINDDIR
+
+#if 1 /* FIXME libc 6 */
+# include <linux/types.h> 
+#else
+# include <sys/types.h> 
+#endif
+#include <sys/stat.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdio.h>
+#ifdef FEATURE_USERNAME
+#include <pwd.h>
+#include <grp.h>
+#endif
+#ifdef FEATURE_TIMESTAMPS
+#include <time.h>
+#endif
+
+#define TYPEINDEX(mode)	(((mode) >> 12) & 0x0f)
+#define TYPECHAR(mode)	("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+#ifdef FEATURE_FILETYPECHAR
+#define APPCHAR(mode)	("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
+#endif
+
+#ifndef MAJOR
+#define MAJOR(dev) (((dev)>>8)&0xff)
+#define MINOR(dev) ((dev)&0xff)
+#endif
+
+#define MODE1  "rwxrwxrwx"
+#define MODE0  "---------"
+#define SMODE1 "..s..s..t"
+#define SMODE0 "..S..S..T"
+
+/* The 9 mode bits to test */
+
+static const umode_t MBIT[] = {
+  S_IRUSR, S_IWUSR, S_IXUSR,
+  S_IRGRP, S_IWGRP, S_IXGRP,
+  S_IROTH, S_IWOTH, S_IXOTH
+};
+
+/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */
+
+static const umode_t SBIT[] = {
+  0, 0, S_ISUID,
+  0, 0, S_ISGID,
+  0, 0, S_ISVTX
+};
+
+#define FMT_AUTO	0
+#define FMT_LONG	1	/* one record per line, extended info */
+#define FMT_SINGLE	2	/* one record per line */
+#define FMT_ROWS	3	/* print across rows */
+#define FMT_COLUMNS	3	/* fill columns (same, since we don't sort) */
+
+#define TIME_MOD	0
+#define TIME_CHANGE	1
+#define TIME_ACCESS	2
+
+#define DISP_FTYPE	1	/* show character for file type */
+#define DISP_EXEC	2	/* show '*' if regular executable file */
+#define DISP_HIDDEN	4	/* show files starting . (except . and ..) */
+#define DISP_DOT	8	/* show . and .. */
+#define DISP_NUMERIC	16	/* numeric uid and gid */
+#define DISP_FULLTIME	32	/* show extended time display */
+#define DIR_NOLIST	64	/* show directory as itself, not contents */
+#define DISP_DIRNAME	128	/* show directory name (for internal use) */
+#define DIR_RECURSE	256	/* -R (not yet implemented) */
+
+static unsigned char	display_fmt = FMT_AUTO;
+static unsigned short	opts = 0;
+static unsigned short	column = 0;
+
+#ifdef FEATURE_AUTOWIDTH
+static unsigned short terminal_width = 0, column_width = 0;
+#else
+#define terminal_width	TERMINAL_WIDTH
+#define column_width	COLUMN_WIDTH
+#endif
+
+#ifdef FEATURE_TIMESTAMPS
+static unsigned char time_fmt = TIME_MOD;
+#endif
+
+#define wr(data,len) fwrite(data, 1, len, stdout)
+
+static void writenum(long val, short minwidth)
+{
+	char	scratch[20];
+
+	char *p = scratch + sizeof(scratch);
+	short len = 0;
+	short neg = (val < 0);
+	
+	if (neg) val = -val;
+	do
+		*--p = (val % 10) + '0', len++, val /= 10;
+	while (val);
+	if (neg)
+		*--p = '-', len++;
+	while (len < minwidth)
+		*--p = ' ', len++;
+	wr(p, len);
+	column += len;
+}
+
+static void newline(void)
+{
+	if (column > 0) {
+		wr("\n", 1);
+		column = 0;
+	}
+}
+
+static void tab(short col)
+{
+	static const char spaces[] = "                ";
+	#define nspaces ((sizeof spaces)-1)	/* null terminator! */
+	
+	short n = col - column;
+
+	if (n > 0) {
+		column = col;
+		while (n > nspaces) {
+			wr(spaces, nspaces);
+			n -= nspaces;
+		}
+		/* must be 1...(sizeof spaces) left */
+		wr(spaces, n);
+	}
+	#undef nspaces
+}
+
+#ifdef FEATURE_FILETYPECHAR
+static char append_char(umode_t mode)
+{
+	if (!(opts & DISP_FTYPE))
+		return '\0';
+	if ((opts & DISP_EXEC) && S_ISREG(mode) && (mode & (S_IXUSR|S_IXGRP|S_IXOTH)))
+		return '*';
+	return APPCHAR(mode);
+}
+#endif
+
+/**
+ **
+ ** Display a file or directory as a single item
+ ** (in either long or short format)
+ **
+ **/
+
+static void list_single(const char *name, struct stat *info)
+{
+	char scratch[20];
+	short len = strlen(name);
+#ifdef FEATURE_FILETYPECHAR
+	char append = append_char(info->st_mode);
+#endif
+	
+	if (display_fmt == FMT_LONG) {
+		umode_t mode = info->st_mode; 
+		int i;
+		
+		scratch[0] = TYPECHAR(mode);
+		for (i=0; i<9; i++)
+			if (mode & SBIT[i])
+				scratch[i+1] = (mode & MBIT[i])
+						? SMODE1[i]
+						: SMODE0[i];
+			else
+				scratch[i+1] = (mode & MBIT[i])
+						? MODE1[i]
+						: MODE0[i];
+		newline();
+		wr(scratch, 10);
+		column=10;
+		writenum((long)info->st_nlink,(short)4);
+		fputs(" ", stdout);
+#ifdef FEATURE_USERNAME
+		if (!(opts & DISP_NUMERIC)) {
+			struct passwd *pw = getpwuid(info->st_uid);
+			if (pw)
+				fputs(pw->pw_name, stdout);
+			else
+				writenum((long)info->st_uid,(short)0);
+		} else
+#endif
+		writenum((long)info->st_uid,(short)0);
+		tab(24);
+#ifdef FEATURE_USERNAME
+		if (!(opts & DISP_NUMERIC)) {
+			struct group *gr = getgrgid(info->st_gid);
+			if (gr)
+				fputs(gr->gr_name, stdout);
+			else
+				writenum((long)info->st_gid,(short)0);
+		} else
+#endif
+		writenum((long)info->st_gid,(short)0);
+		tab(33);
+		if (S_ISBLK(mode) || S_ISCHR(mode)) {
+			writenum((long)MAJOR(info->st_rdev),(short)3);
+			fputs(", ", stdout);
+			writenum((long)MINOR(info->st_rdev),(short)3);
+		}
+		else
+			writenum((long)info->st_size,(short)8);
+		fputs(" ", stdout);
+#ifdef FEATURE_TIMESTAMPS
+		{
+			time_t cal;
+			char *string;
+			
+			switch(time_fmt) {
+			case TIME_CHANGE:
+				cal=info->st_ctime; break;
+			case TIME_ACCESS:
+				cal=info->st_atime; break;
+			default:
+				cal=info->st_mtime; break;
+			}
+			string=ctime(&cal);
+			if (opts & DISP_FULLTIME)
+				wr(string,24);
+			else {
+				time_t age = time(NULL) - cal;
+				wr(string+4,7);	/* mmm_dd_ */
+				if(age < 3600L*24*365/2 && age > -15*60)
+					/* hh:mm if less than 6 months old */
+					wr(string+11,5);
+				else
+					/* _yyyy otherwise */
+					wr(string+19,5);
+			}
+			wr(" ", 1);
+		}
+#else
+		fputs("--- -- ----- ", stdout);
+#endif
+		wr(name, len);
+		if (S_ISLNK(mode)) {
+			wr(" -> ", 4);
+			len = readlink(name, scratch, sizeof scratch);
+			if (len > 0) fwrite(scratch, 1, len, stdout);
+#ifdef FEATURE_FILETYPECHAR
+			/* show type of destination */
+			if (opts & DISP_FTYPE) {
+				if (!stat(name, info)) {
+					append = append_char(info->st_mode);
+					if (append)
+						fputc(append, stdout);
+				}
+			}
+#endif
+		}
+#ifdef FEATURE_FILETYPECHAR
+		else if (append)
+			wr(&append, 1);
+#endif
+	} else {
+		static short nexttab = 0;
+		
+		/* sort out column alignment */
+		if (column == 0)
+			; /* nothing to do */
+		else if (display_fmt == FMT_SINGLE)
+			newline();
+		else {
+			if (nexttab + column_width > terminal_width
+#ifndef FEATURE_AUTOWIDTH
+			|| nexttab + len >= terminal_width
+#endif
+			)
+				newline();
+			else
+				tab(nexttab);
+		}
+		/* work out where next column starts */
+#ifdef FEATURE_AUTOWIDTH
+		/* we know the calculated width is big enough */
+		nexttab = column + column_width + COLUMN_GAP;
+#else
+		/* might cover more than one fixed-width column */
+		nexttab = column;
+		do
+			nexttab += column_width + COLUMN_GAP;
+		while (nexttab < (column + len + COLUMN_GAP));
+#endif
+		/* now write the data */
+		wr(name, len);
+		column = column + len;
+#ifdef FEATURE_FILETYPECHAR
+		if (append)
+			wr(&append, 1), column++;
+#endif
+	}
+}
+
+/**
+ **
+ ** List the given file or directory, expanding a directory
+ ** to show its contents if required
+ **
+ **/
+
+static int list_item(const char *name)
+{
+	struct stat info;
+	DIR *dir;
+	struct dirent *entry;
+	char fullname[MAXNAMLEN+1], *fnend;
+	
+	if (lstat(name, &info))
+		goto listerr;
+	
+	if (!S_ISDIR(info.st_mode) || 
+	    (opts & DIR_NOLIST)) {
+		list_single(name, &info);
+		return 0;
+	}
+
+	/* Otherwise, it's a directory we want to list the contents of */
+
+	if (opts & DISP_DIRNAME) {   /* identify the directory */
+		if (column)
+			wr("\n\n", 2), column = 0;
+		wr(name, strlen(name));
+		wr(":\n", 2);
+	}
+	
+	dir = opendir(name);
+	if (!dir) goto listerr;
+#ifdef FEATURE_AUTOWIDTH
+	column_width = 0;
+	while ((entry = readdir(dir)) != NULL) {
+		short w = strlen(entry->d_name);
+		if (column_width < w)
+			column_width = w;
+	}
+#ifdef HAS_REWINDDIR
+	rewinddir(dir);
+#else
+	closedir(dir);
+	dir = opendir(name);
+	if (!dir) goto listerr;
+#endif
+#endif
+
+	/* List the contents */
+	
+	strcpy(fullname,name);	/* *** ignore '.' by itself */
+	fnend=fullname+strlen(fullname);
+	if (fnend[-1] != '/')
+		*fnend++ = '/';
+	
+	while ((entry = readdir(dir)) != NULL) {
+		const char *en=entry->d_name;
+		if (en[0] == '.') {
+			if (!en[1] || (en[1] == '.' && !en[2])) { /* . or .. */
+				if (!(opts & DISP_DOT))
+					continue;
+			}
+			else if (!(opts & DISP_HIDDEN))
+				continue;
+		}
+		/* FIXME: avoid stat if not required */
+		strcpy(fnend, entry->d_name);
+		if (lstat(fullname, &info))
+			goto direrr; /* (shouldn't fail) */
+		list_single(entry->d_name, &info);
+	}
+	closedir(dir);
+	return 0;
+
+direrr:
+	closedir(dir);	
+listerr:
+	newline();
+	name_and_error(name);
+	return 1;
+}
+
+const char	ls_usage[] = "Usage: ls [-1a"
+#ifdef FEATURE_TIMESTAMPS
+	"c"
+#endif
+	"d"
+#ifdef FEATURE_TIMESTAMPS
+	"e"
+#endif
+	"ln"
+#ifdef FEATURE_FILETYPECHAR
+	"p"
+#endif
+#ifdef FEATURE_TIMESTAMPS
+	"u"
+#endif
+	"xAC"
+#ifdef FEATURE_FILETYPECHAR
+	"F"
+#endif
+#ifdef FEATURE_RECURSIVE
+	"R"
+#endif
+	"] [filenames...]\n";
+
+extern int
+ls_main(struct FileInfo * not_used, int argc, char * * argv)
+{
+	int argi=1, i;
+	
+	/* process options */
+	while (argi < argc && argv[argi][0] == '-') {
+		const char *p = &argv[argi][1];
+		
+		if (!*p) goto print_usage_message;	/* "-" by itself not allowed */
+		if (*p == '-') {
+			if (!p[1]) {	/* "--" forces end of options */
+				argi++;
+				break;
+			}
+			/* it's a long option name - we don't support them */
+			goto print_usage_message;
+		}
+		
+		while (*p)
+			switch (*p++) {
+			case 'l':	display_fmt = FMT_LONG; break;
+			case '1':	display_fmt = FMT_SINGLE; break;
+			case 'x':	display_fmt = FMT_ROWS; break;
+			case 'C':	display_fmt = FMT_COLUMNS; break;
+#ifdef FEATURE_FILETYPECHAR
+			case 'p':	opts |= DISP_FTYPE; break;
+			case 'F':	opts |= DISP_FTYPE|DISP_EXEC; break;
+#endif
+			case 'A':	opts |= DISP_HIDDEN; break;
+			case 'a':	opts |= DISP_HIDDEN|DISP_DOT; break;
+			case 'n':	opts |= DISP_NUMERIC; break;
+			case 'd':	opts |= DIR_NOLIST; break;
+#ifdef FEATURE_RECURSIVE
+			case 'R':	opts |= DIR_RECURSE; break;
+#endif
+#ifdef FEATURE_TIMESTAMPS
+			case 'u':	time_fmt = TIME_ACCESS; break;
+			case 'c':	time_fmt = TIME_CHANGE; break;
+			case 'e':	opts |= DISP_FULLTIME; break;
+#endif
+			default:	goto print_usage_message;
+			}
+		
+		argi++;
+	}
+
+	/* choose a display format */
+	if (display_fmt == FMT_AUTO)
+		display_fmt = isatty(STDOUT_FILENO) ? FMT_COLUMNS : FMT_SINGLE;
+	if (argi < argc - 1)
+		opts |= DISP_DIRNAME; /* 2 or more items? label directories */
+#ifdef FEATURE_AUTOWIDTH
+	/* could add a -w option and/or TIOCGWINSZ call */
+	if (terminal_width < 1) terminal_width = TERMINAL_WIDTH;
+	
+	for (i = argi; i < argc; i++) {
+		int len = strlen(argv[i]);
+		if (column_width < len)
+			column_width = len;
+	}
+#endif
+
+	/* process files specified, or current directory if none */
+	i=0;
+	if (argi == argc)
+		i = list_item(".");
+	while (argi < argc)
+		i |= list_item(argv[argi++]);
+	newline();
+	return i;
+
+print_usage_message:
+	usage(ls_usage);
+	return 1;
+}
diff --git a/coreutils/mkdir.c b/coreutils/mkdir.c
new file mode 100644
index 000000000..8f1fa04db
--- /dev/null
+++ b/coreutils/mkdir.c
@@ -0,0 +1,58 @@
+#include "internal.h"
+#include <errno.h>
+#include <sys/param.h>
+
+const char mkdir_usage[] = "mkdir [-m mode] directory [directory ...]\n"
+"\tCreate directories.\n"
+"\n"
+"\t-m mode:\tSpecifiy the mode for the new directory\n"
+"\t\tunder the argument directory.";
+
+/*make directories skipping the last part of the path. Used here and by untar*/
+int mkdir_until(const char *fpath, const struct FileInfo * fi)
+{
+	char    path[PATH_MAX];
+	char *  s = path;
+
+	strcpy(path, fpath);
+	if ( s[0] == '\0' && s[1] == '\0' ) {
+		usage(mkdir_usage);
+		return 1;
+	}
+	s++;
+	while ( *s != '\0' ) {
+		if ( *s == '/' ) {
+			int	status;
+
+			*s = '\0';
+			status = mkdir(path, (fi?fi->orWithMode:0700) );
+			*s = '/';
+
+			if ( status != 0 ) {
+				if ( errno != EEXIST ) {
+					name_and_error(fpath);
+					return 1;
+				}
+			}
+
+		}
+		s++;
+	}
+	return 0;
+}
+
+int
+mkdir_fn(const struct FileInfo * i)
+{
+	if ( i->makeParentDirectories ) {
+		if(mkdir_until(i->source, i)) return 1;
+	}
+
+	if ( mkdir(i->source, i->orWithMode) != 0 && errno != EEXIST ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
+
diff --git a/coreutils/mknod.c b/coreutils/mknod.c
new file mode 100644
index 000000000..b18394bec
--- /dev/null
+++ b/coreutils/mknod.c
@@ -0,0 +1,52 @@
+#include "internal.h"
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+const char mknod_usage[] = "mknod file b|c|u|p major minor\n"
+"\tMake special files.\n"
+"\n"
+"\tb:\tMake a block (buffered) device.\n"
+"\tc or u:\tMake a character (un-buffered) device.\n"
+"\tp:\tMake a named pipe. Major and minor are ignored for named pipes.\n";
+
+int
+mknod_main(struct FileInfo * i, int argc, char * * argv)
+{
+	mode_t	mode = 0;
+	dev_t	dev = 0;
+
+	switch(argv[2][0]) {
+	case 'c':
+	case 'u':
+		mode = S_IFCHR;
+		break;
+	case 'b':
+		mode = S_IFBLK;
+		break;
+	case 'p':
+		mode = S_IFIFO;
+		break;
+	default:
+		usage(mknod_usage);
+		return 1;
+	}
+
+	if ( mode == S_IFCHR || mode == S_IFBLK ) {
+		dev = (atoi(argv[3]) << 8) | atoi(argv[4]);
+		if ( argc != 5 ) {
+			usage(mknod_usage);
+			return 1;
+		}
+	}
+
+	mode |= 0666;
+
+	if ( mknod(argv[1], mode, dev) != 0 ) {
+		name_and_error(argv[1]);
+		return 1;
+	}
+	return 0;
+}
diff --git a/coreutils/mv.c b/coreutils/mv.c
new file mode 100644
index 000000000..22c4a1207
--- /dev/null
+++ b/coreutils/mv.c
@@ -0,0 +1,38 @@
+#include "internal.h"
+#include <stdio.h>
+#include <errno.h>
+
+const char	mv_usage[] = "mv source-file destination-file\n"
+"\t\tmv source-file [source-file ...] destination-directory\n"
+"\n"
+"\tMove the source files to the destination.\n"
+"\n";
+
+extern int
+mv_fn(const struct FileInfo * i)
+{
+	struct stat		destination_stat;
+	char			d[1024];
+	struct FileInfo	n;
+
+	if ( stat(i->destination, &destination_stat) == 0 ) {
+		if ( i->stat.st_ino == destination_stat.st_ino
+		 &&  i->stat.st_dev == destination_stat.st_dev )
+			return 0;	/* Move file to itself. */
+	}
+	if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
+		n = *i;
+		n.destination = join_paths(d, i->destination, basename(i->source));
+		i = &n;
+	}
+	if ( rename(i->source, i->destination) == 0 )
+		return 0;
+	else if ( errno == EXDEV && is_a_directory(i->source) ) {
+		fprintf(stderr
+		,"%s: Can't move directory across filesystems.\n"
+		,i->source);
+		return 1;
+	}
+	else
+		return cp_fn(i);
+}
diff --git a/coreutils/printf.c b/coreutils/printf.c
new file mode 100644
index 000000000..e79843c80
--- /dev/null
+++ b/coreutils/printf.c
@@ -0,0 +1,531 @@
+// I may still need some more cleaning...fix my error checking
+
+#include "internal.h"
+#ifdef BB_PRINTF
+
+/* printf - format and print data
+   Copyright (C) 90, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Usage: printf format [argument...]
+
+   A front end to the printf function that lets it be used from the shell.
+
+   Backslash escapes:
+
+   \" = double quote
+   \\ = backslash
+   \a = alert (bell)
+   \b = backspace
+   \c = produce no further output
+   \f = form feed
+   \n = new line
+   \r = carriage return
+   \t = horizontal tab
+   \v = vertical tab
+   \0ooo = octal number (ooo is 0 to 3 digits)
+   \xhhh = hexadecimal number (hhh is 1 to 3 digits)
+
+   Additional directive:
+
+   %b = print an argument string, interpreting backslash escapes
+
+   The `format' argument is re-used as many times as necessary
+   to convert all of the given arguments.
+
+   David MacKenzie <djm@gnu.ai.mit.edu> */
+   
+
+//   19990508 Busy Boxed! Dave Cinege
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <libintl.h>
+
+
+#ifndef S_IFMT
+# define S_IFMT 0170000
+#endif
+#if !defined(S_ISBLK) && defined(S_IFBLK)
+# define	S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+#endif
+#if !defined(S_ISCHR) && defined(S_IFCHR)
+# define	S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+#endif
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+# define	S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+# define	S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+#if !defined(S_ISFIFO) && defined(S_IFIFO)
+# define	S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
+#endif
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+# define	S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
+#endif
+#if !defined(S_ISSOCK) && defined(S_IFSOCK)
+# define	S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+#endif
+#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
+# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
+# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
+#endif
+#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
+# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
+#endif
+
+#define IN_CTYPE_DOMAIN(c) 1
+
+#ifdef isblank
+# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c))
+#else
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+#endif
+#ifdef isgraph
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c))
+#else
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c))
+#endif
+
+#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
+#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
+#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
+#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
+#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
+#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c))
+#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
+#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
+#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
+#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
+#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
+
+#define isodigit(c) ((c) >= '0' && (c) <= '7')
+#define hextobin(c) ((c)>='a'&&(c)<='f' ? (c)-'a'+10 : (c)>='A'&&(c)<='F' ? (c)-'A'+10 : (c)-'0')
+#define octtobin(c) ((c) - '0')
+
+char *xmalloc ();
+
+static double xstrtod __P ((char *s));
+static int print_esc __P ((char *escstart));
+static int print_formatted __P ((char *format, int argc, char **argv));
+static long xstrtol __P ((char *s));
+static unsigned long xstrtoul __P ((char *s));
+static void print_direc __P ((char *start, size_t length, int field_width, int precision, char *argument));
+static void print_esc_char __P ((int c));
+static void print_esc_string __P ((char *str));
+static void verify __P ((char *s, char *end));
+
+/* The value to return to the calling program.  */
+static int exit_status;
+
+const char	printf_usage[] = "Usage: printf format [argument...]\n";
+
+int
+printf_main(struct FileInfo * i, int argc, char * * argv)
+{
+  char *format;
+  int args_used;
+
+  exit_status = 0;
+
+  format = argv[1];
+  argc -= 2;
+  argv += 2;
+
+  do
+    {
+      args_used = print_formatted (format, argc, argv);
+      argc -= args_used;
+      argv += args_used;
+    }
+  while (args_used > 0 && argc > 0);
+
+/*
+  if (argc > 0)
+    fprintf(stderr, "excess args ignored");
+*/
+
+  exit (exit_status);
+}
+
+/* Print the text in FORMAT, using ARGV (with ARGC elements) for
+   arguments to any `%' directives.
+   Return the number of elements of ARGV used.  */
+
+static int
+print_formatted (char *format, int argc, char **argv)
+{
+  int save_argc = argc;		/* Preserve original value.  */
+  char *f;			/* Pointer into `format'.  */
+  char *direc_start;		/* Start of % directive.  */
+  size_t direc_length;		/* Length of % directive.  */
+  int field_width;		/* Arg to first '*', or -1 if none.  */
+  int precision;		/* Arg to second '*', or -1 if none.  */
+
+  for (f = format; *f; ++f)
+    {
+      switch (*f)
+	{
+	case '%':
+	  direc_start = f++;
+	  direc_length = 1;
+	  field_width = precision = -1;
+	  if (*f == '%')
+	    {
+	      putchar ('%');
+	      break;
+	    }
+	  if (*f == 'b')
+	    {
+	      if (argc > 0)
+		{
+		  print_esc_string (*argv);
+		  ++argv;
+		  --argc;
+		}
+	      break;
+	    }
+	  if (strchr ("-+ #", *f))
+	    {
+	      ++f;
+	      ++direc_length;
+	    }
+	  if (*f == '*')
+	    {
+	      ++f;
+	      ++direc_length;
+	      if (argc > 0)
+		{
+		  field_width = xstrtoul (*argv);
+		  ++argv;
+		  --argc;
+		}
+	      else
+		field_width = 0;
+	    }
+	  else
+	    while (ISDIGIT (*f))
+	      {
+		++f;
+		++direc_length;
+	      }
+	  if (*f == '.')
+	    {
+	      ++f;
+	      ++direc_length;
+	      if (*f == '*')
+		{
+		  ++f;
+		  ++direc_length;
+		  if (argc > 0)
+		    {
+		      precision = xstrtoul (*argv);
+		      ++argv;
+		      --argc;
+		    }
+		  else
+		    precision = 0;
+		}
+	      else
+		while (ISDIGIT (*f))
+		  {
+		    ++f;
+		    ++direc_length;
+		  }
+	    }
+	  if (*f == 'l' || *f == 'L' || *f == 'h')
+	    {
+	      ++f;
+	      ++direc_length;
+	    }
+	  /*  
+	  if (!strchr ("diouxXfeEgGcs", *f))
+	    fprintf(stderr, "%%%c: invalid directive", *f);
+	  */
+	  ++direc_length;
+	  if (argc > 0)
+	    {
+	      print_direc (direc_start, direc_length, field_width,
+			   precision, *argv);
+	      ++argv;
+	      --argc;
+	    }
+	  else
+	    print_direc (direc_start, direc_length, field_width,
+			 precision, "");
+	  break;
+
+	case '\\':
+	  f += print_esc (f);
+	  break;
+
+	default:
+	  putchar (*f);
+	}
+    }
+
+  return save_argc - argc;
+}
+
+/* Print a \ escape sequence starting at ESCSTART.
+   Return the number of characters in the escape sequence
+   besides the backslash. */
+
+static int
+print_esc (char *escstart)
+{
+  register char *p = escstart + 1;
+  int esc_value = 0;		/* Value of \nnn escape. */
+  int esc_length;		/* Length of \nnn escape. */
+
+  /* \0ooo and \xhhh escapes have maximum length of 3 chars. */
+  if (*p == 'x')
+    {
+      for (esc_length = 0, ++p;
+	   esc_length < 3 && ISXDIGIT (*p);
+	   ++esc_length, ++p)
+	esc_value = esc_value * 16 + hextobin (*p);
+/*      if (esc_length == 0)
+	fprintf(stderr, "missing hex in esc");
+*/
+      putchar (esc_value);
+    }
+  else if (*p == '0')
+    {
+      for (esc_length = 0, ++p;
+	   esc_length < 3 && isodigit (*p);
+	   ++esc_length, ++p)
+	esc_value = esc_value * 8 + octtobin (*p);
+      putchar (esc_value);
+    }
+  else if (strchr ("\"\\abcfnrtv", *p))
+    print_esc_char (*p++);
+/*  else
+    fprintf(stderr, "\\%c: invalid esc", *p);
+*/
+  return p - escstart - 1;
+}
+
+/* Output a single-character \ escape.  */
+
+static void
+print_esc_char (int c)
+{
+  switch (c)
+    {
+    case 'a':			/* Alert. */
+      putchar (7);
+      break;
+    case 'b':			/* Backspace. */
+      putchar (8);
+      break;
+    case 'c':			/* Cancel the rest of the output. */
+      exit (0);
+      break;
+    case 'f':			/* Form feed. */
+      putchar (12);
+      break;
+    case 'n':			/* New line. */
+      putchar (10);
+      break;
+    case 'r':			/* Carriage return. */
+      putchar (13);
+      break;
+    case 't':			/* Horizontal tab. */
+      putchar (9);
+      break;
+    case 'v':			/* Vertical tab. */
+      putchar (11);
+      break;
+    default:
+      putchar (c);
+      break;
+    }
+}
+
+/* Print string STR, evaluating \ escapes. */
+
+static void
+print_esc_string (char *str)
+{
+  for (; *str; str++)
+    if (*str == '\\')
+      str += print_esc (str);
+    else
+      putchar (*str);
+}
+
+static void
+print_direc (char *start, size_t length, int field_width, int precision, char *argument)
+{
+  char *p;		/* Null-terminated copy of % directive. */
+
+  p = xmalloc ((unsigned) (length + 1));
+  strncpy (p, start, length);
+  p[length] = 0;
+
+  switch (p[length - 1])
+    {
+    case 'd':
+    case 'i':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtol (argument));
+	  else
+	    printf (p, precision, xstrtol (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtol (argument));
+	  else
+	    printf (p, field_width, precision, xstrtol (argument));
+	}
+      break;
+
+    case 'o':
+    case 'u':
+    case 'x':
+    case 'X':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtoul (argument));
+	  else
+	    printf (p, precision, xstrtoul (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtoul (argument));
+	  else
+	    printf (p, field_width, precision, xstrtoul (argument));
+	}
+      break;
+
+    case 'f':
+    case 'e':
+    case 'E':
+    case 'g':
+    case 'G':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtod (argument));
+	  else
+	    printf (p, precision, xstrtod (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtod (argument));
+	  else
+	    printf (p, field_width, precision, xstrtod (argument));
+	}
+      break;
+
+    case 'c':
+      printf (p, *argument);
+      break;
+
+    case 's':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, argument);
+	  else
+	    printf (p, precision, argument);
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, argument);
+	  else
+	    printf (p, field_width, precision, argument);
+	}
+      break;
+    }
+
+  free (p);
+}
+
+static unsigned long
+xstrtoul (char *s)
+{
+  char *end;
+  unsigned long val;
+
+  errno = 0;
+  val = strtoul (s, &end, 0);
+  verify (s, end);
+  return val;
+}
+
+static long
+xstrtol (char *s)
+{
+  char *end;
+  long val;
+
+  errno = 0;
+  val = strtol (s, &end, 0);
+  verify (s, end);
+  return val;
+}
+
+static double
+xstrtod (char *s)
+{
+  char *end;
+  double val;
+
+  errno = 0;
+  val = strtod (s, &end);
+  verify (s, end);
+  return val;
+}
+
+static void
+verify (char *s, char *end)
+{
+  if (errno)
+    {
+      fprintf(stderr, "%s", s);
+      exit_status = 1;
+    }
+  else if (*end)
+    {
+    /*
+      if (s == end)
+	fprintf(stderr, "%s: expected numeric", s);
+      else
+	fprintf(stderr, "%s: not completely converted", s);
+    */	
+      exit_status = 1;
+    }
+}
+
+#endif
diff --git a/coreutils/pwd.c b/coreutils/pwd.c
new file mode 100644
index 000000000..d9ab54e48
--- /dev/null
+++ b/coreutils/pwd.c
@@ -0,0 +1,18 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	pwd_usage[] = "Print the current directory.\n";
+
+extern int
+pwd_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char		buf[1024];
+
+	if ( getcwd(buf, sizeof(buf)) == NULL ) {
+		name_and_error("get working directory");
+		return 1;
+	}
+
+	printf("%s\n", buf);
+	return 0;
+}
diff --git a/coreutils/rm.c b/coreutils/rm.c
new file mode 100644
index 000000000..dc35b0297
--- /dev/null
+++ b/coreutils/rm.c
@@ -0,0 +1,30 @@
+#include "internal.h"
+#include <errno.h>
+
+const char	rm_usage[] = "rm [-r] file [file ...]\n"
+"\n"
+"\tDelete files.\n"
+"\n"
+"\t-r:\tRecursively remove files and directories.\n";
+
+extern int
+rm_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->processDirectoriesAfterTheirContents = 1;
+	return monadic_main(i, argc, argv);
+}
+
+extern int
+rm_fn(const struct FileInfo * i)
+{
+	if ( i->recursive
+	 && !i->isSymbolicLink
+	 && (i->stat.st_mode & S_IFMT) == S_IFDIR )
+		return rmdir_fn(i);
+	else if ( unlink(i->source) != 0 && errno != ENOENT && !i->force ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/coreutils/rmdir.c b/coreutils/rmdir.c
new file mode 100644
index 000000000..069e68546
--- /dev/null
+++ b/coreutils/rmdir.c
@@ -0,0 +1,17 @@
+#include "internal.h"
+#include <errno.h>
+
+const char	rmdir_usage[] = "rmdir directory [directory ...]\n"
+"\n"
+"\tDelete directories.\n";
+
+extern int
+rmdir_fn(const struct FileInfo * i)
+{
+	if ( rmdir(i->source) != 0 && errno != ENOENT && !i->force ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/coreutils/sleep.c b/coreutils/sleep.c
new file mode 100644
index 000000000..e48e14b2f
--- /dev/null
+++ b/coreutils/sleep.c
@@ -0,0 +1,15 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	sleep_usage[] = "sleep seconds\n"
+"\n"
+"\tPause program execution for the given number of seconds.\n";
+
+extern int
+sleep_main(struct FileInfo * i, int argc, char * * argv)
+{
+	if ( sleep(atoi(argv[1])) != 0 )
+		return -1;
+	else
+		return 0;
+}
diff --git a/coreutils/sync.c b/coreutils/sync.c
new file mode 100644
index 000000000..6fa5b380b
--- /dev/null
+++ b/coreutils/sync.c
@@ -0,0 +1,11 @@
+#include "internal.h"
+
+const char	sync_usage[] = "sync\n"
+"\n"
+"\tWrite all buffered filesystem blocks to disk.\n";
+
+extern int
+sync_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return sync();
+}
diff --git a/coreutils/touch.c b/coreutils/touch.c
new file mode 100644
index 000000000..ca4b98108
--- /dev/null
+++ b/coreutils/touch.c
@@ -0,0 +1,20 @@
+#include "internal.h"
+#include <sys/types.h>
+#include <stdio.h>
+#include <utime.h>
+
+const char	touch_usage[] = "touch [-c] file [file ...]\n"
+"\n"
+"\tUpdate the last-modified date on the given file[s].\n";
+
+extern int
+touch_fn(const struct FileInfo * i)
+{
+	if ( (utime(i->source, 0) != 0) && (i->create != 1) ) {
+		if ( fopen(i->source, "w") == NULL ) {
+			name_and_error(i->source);
+			return 1;
+		}
+	}
+	return 0;
+}
diff --git a/cp.c b/cp.c
new file mode 100644
index 000000000..078a57c56
--- /dev/null
+++ b/cp.c
@@ -0,0 +1,89 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/fcntl.h>
+#include <sys/param.h>
+#include <errno.h>
+
+const char  cp_usage[] = "cp [-r] source-file destination-file\n"
+"\t\tcp [-r] source-file [source-file ...] destination-directory\n"
+"\n"
+"\tCopy the source files to the destination.\n"
+"\n"
+"\t-r:\tRecursively copy all files and directories\n"
+"\t\tunder the argument directory.";
+
+extern int
+cp_fn(const struct FileInfo * i)
+{
+    int         sourceFd;
+    int         destinationFd;
+    const char * destination = i->destination;
+    struct stat destination_stat;
+    int         status;
+    char        buf[8192];
+    char        d[PATH_MAX];
+
+    if ( (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
+        if ( mkdir(destination, i->stat.st_mode & ~S_IFMT)
+         != 0 && errno != EEXIST ) {
+            name_and_error(destination);
+            return 1;
+        }
+        return 0;
+    }
+    if ( (sourceFd = open(i->source, O_RDONLY)) < 0 ) {
+        name_and_error(i->source);
+        return 1;
+    }
+    if ( stat(destination, &destination_stat) == 0 ) {
+        if ( i->stat.st_ino == destination_stat.st_ino
+         &&  i->stat.st_dev == destination_stat.st_dev ) {
+            fprintf(stderr
+            ,"copy of %s to %s would copy file to itself.\n"
+            ,i->source
+            ,destination);
+            close(sourceFd);
+            return 1;
+        }
+    }
+    /*
+     * If the destination is a directory, create a file within it.
+     */
+    if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
+		destination = join_paths(
+		 d
+		,i->destination
+		,&i->source[i->directoryLength]);
+
+        if ( stat(destination, &destination_stat) == 0 ) {
+            if ( i->stat.st_ino == destination_stat.st_ino
+             &&  i->stat.st_dev == destination_stat.st_dev ) {
+                fprintf(stderr
+                ,"copy of %s to %s would copy file to itself.\n"
+                ,i->source
+                ,destination);
+                close(sourceFd);
+                return 1;
+            }
+        }
+    }
+
+    destinationFd = creat(destination, i->stat.st_mode & 07777);
+
+    while ( (status = read(sourceFd, buf, sizeof(buf))) > 0 ) {
+        if ( write(destinationFd, buf, status) != status ) {
+            name_and_error(destination);
+            close(sourceFd);
+            close(destinationFd);
+            return 1;
+        }
+    }
+    close(sourceFd);
+    close(destinationFd);
+    if ( status < 0 ) {
+        name_and_error(i->source);
+        return 1;
+    }
+    return 0;
+}
diff --git a/date.c b/date.c
new file mode 100644
index 000000000..a52a9a4a8
--- /dev/null
+++ b/date.c
@@ -0,0 +1,305 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdio.h>
+#include <getopt.h>
+
+
+/* This 'date' command supports only 2 time setting formats, 
+   all the GNU strftime stuff (its in libc, lets use it),
+   setting time using UTC and displaying int, as well as
+   an RFC 822 complient date output for shell scripting
+   mail commands */
+
+const char	date_usage[] = "date [-uR] [+FORMAT|+%f] [ [-s|-d] MMDDhhmm[[CC]YY]\n                | [[[[CCYY.]MM.DD-]hh:mm[:ss]]]] ]";
+
+static struct option const long_options[] =
+{
+  {"date", required_argument, NULL, 'd'},
+  /*  {"rfc-822", no_argument, NULL, 'R'},
+  {"set", required_argument, NULL, 's'},
+  {"uct", no_argument, NULL, 'u'},
+  {"utc", no_argument, NULL, 'u'},
+  {"universal", no_argument, NULL, 'u'}, */
+  {NULL, 0, NULL, 0}
+};
+  
+
+
+/* Input parsing code is always bulky - used heavy duty libc stuff as
+   much as possible, missed out a lot of bounds checking */
+
+/* Default input handling to save suprising some people */
+
+struct tm *
+date_conv_time(struct tm *tm_time, const char *t_string) {
+  int nr;
+
+  nr = sscanf(t_string, "%2d%2d%2d%2d%d", 
+	     &(tm_time->tm_mon),
+	     &(tm_time->tm_mday),
+	     &(tm_time->tm_hour),
+	     &(tm_time->tm_min),
+	     &(tm_time->tm_year));
+
+  if(nr < 4 || nr > 5) {
+    fprintf(stderr, "date: invalid date `%s'\n", t_string);
+    exit(1);
+  }
+
+  /* correct for century  - minor Y2K problem here? */
+  if(tm_time->tm_year >= 1900)
+    tm_time->tm_year -= 1900;
+  /* adjust date */
+  tm_time->tm_mon -= 1;
+	     
+  return(tm_time);
+
+}
+
+
+/* The new stuff for LRP */
+
+struct tm *
+date_conv_ftime(struct tm *tm_time, const char *t_string) {
+  struct tm itm_time, jtm_time, ktm_time, \
+    ltm_time, mtm_time, ntm_time;
+  
+  itm_time = *tm_time;
+  jtm_time = *tm_time;
+  ktm_time = *tm_time;
+  ltm_time = *tm_time;
+  mtm_time = *tm_time;
+  ntm_time = *tm_time;
+
+  /* Parse input and assign appropriately to tm_time */
+  
+  if(sscanf(t_string, "%d:%d:%d",
+	    &itm_time.tm_hour, 
+	    &itm_time.tm_min, 
+	    &itm_time.tm_sec) == 3 ) {
+
+    *tm_time = itm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d:%d", 
+		    &jtm_time.tm_hour, 
+		    &jtm_time.tm_min) == 2) {
+
+    *tm_time = jtm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d-%d:%d:%d",
+		    &ktm_time.tm_mon, 
+		    &ktm_time.tm_mday, 
+		    &ktm_time.tm_hour,
+		    &ktm_time.tm_min,
+		    &ktm_time.tm_sec) == 5) {
+
+    ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ktm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d-%d:%d",
+		    &ltm_time.tm_mon, 
+		    &ltm_time.tm_mday, 
+		    &ltm_time.tm_hour,
+		    &ltm_time.tm_min) == 4) {
+
+    ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ltm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
+		    &mtm_time.tm_year,
+		    &mtm_time.tm_mon, 
+		    &mtm_time.tm_mday, 
+		    &mtm_time.tm_hour,
+		    &mtm_time.tm_min,
+		    &mtm_time.tm_sec) == 6) {
+
+    mtm_time.tm_year -= 1900; /* Adjust years */
+    mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = mtm_time;
+    return(tm_time);
+
+  } else if (sscanf(t_string, "%d.%d.%d-%d:%d",
+		    &ntm_time.tm_year,
+		    &ntm_time.tm_mon, 
+		    &ntm_time.tm_mday, 
+		    &ntm_time.tm_hour,
+		    &ntm_time.tm_min) == 5) { 
+    ntm_time.tm_year -= 1900; /* Adjust years */
+    ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+    *tm_time = ntm_time;
+    return(tm_time);
+
+  }
+
+  fprintf(stderr, "date: invalid date `%s'\n", t_string);
+
+  exit(1);
+
+}
+
+
+void
+date_err(void) {
+  fprintf(stderr, "date: only one date argument can be given at a time.\n");
+  exit(1);
+}
+
+int
+date_main(struct FileInfo * i, int argc, char * * argv)
+{
+  char *date_str = NULL;
+  char *date_fmt = NULL;
+  char *t_buff;
+  int set_time = 0;
+  int rfc822 = 0;
+  int utc = 0;
+  int use_arg = 0;
+  int n_args;
+  time_t tm; 
+  struct tm tm_time;
+  char optc;
+  
+  /* Interpret command line args */
+	
+
+  while ((optc = getopt_long (argc, argv, "d:Rs:u", long_options, NULL))
+         != EOF) {
+    switch (optc) {
+    case 0:
+      break;    
+
+    case 'R':
+      rfc822 = 1;
+      break;
+
+    case 's':
+      set_time = 1;
+      if(date_str != NULL) date_err();
+      date_str = optarg;
+      break;
+
+    case 'u':
+      utc = 1;
+      if (putenv ("TZ=UTC0") != 0) {
+	fprintf(stderr,"date: memory exhausted\n");
+	return(1);
+      }
+#if LOCALTIME_CACHE
+      tzset ();
+#endif                                                                                break;
+
+    case 'd':
+      use_arg = 1;
+      if(date_str != NULL) date_err();
+      date_str = optarg;
+      break;
+
+    default:
+      usage(date_usage);
+      break;
+    }
+  }
+
+
+  n_args = argc - optind; 
+
+  while (n_args--){
+    switch(argv[optind][0]) {
+      case '+':
+      /* Date format strings */
+      if(date_fmt != NULL) {
+	fprintf(stderr, "date: only one date format can be given.\n");
+	return(1);
+      }
+      date_fmt = &argv[optind][1];
+      break;
+
+      case '\0':
+      break;
+
+      default:
+      /* Anything left over must be a date string to set the time */
+      set_time = 1;
+      if(date_str != NULL) date_err();
+      date_str = argv[optind];
+      break;
+    }
+    optind++;
+  }
+
+
+  /* Now we have parsed all the information except the date format
+   which depends on whether the clock is being set or read */
+
+  time(&tm);
+  memcpy(&tm_time, localtime(&tm), sizeof(tm_time));
+  /* Zero out fields - take her back to midnight!*/
+  if(date_str != NULL) {
+    tm_time.tm_sec = 0;
+    tm_time.tm_min = 0;
+    tm_time.tm_hour = 0;
+  }
+
+  /* Process any date input to UNIX time since 1 Jan 1970 */
+  if(date_str != NULL) {
+
+    if(strchr(date_str, ':') != NULL) {
+      date_conv_ftime(&tm_time, date_str);
+    } else {
+      date_conv_time(&tm_time, date_str);
+    }
+
+    /* Correct any day of week and day of year etc fields */
+    tm = mktime(&tm_time);
+    if (tm < 0 ) {
+      fprintf(stderr, "date: invalid date `%s'\n", date_str);
+      exit(1);
+    }
+
+    /* if setting time, set it */
+    if(set_time) {
+      if( stime(&tm) < 0) {
+	fprintf(stderr, "date: can't set date.\n");
+	exit(1);
+      }
+    }
+  }
+  
+  /* Display output */
+
+  /* Deal with format string */
+  if(date_fmt == NULL) {
+    date_fmt = (rfc822
+                ? (utc
+                   ? "%a, %_d %b %Y %H:%M:%S GMT"
+                   : "%a, %_d %b %Y %H:%M:%S %z")
+                : "%a %b %e %H:%M:%S %Z %Y");
+
+  } else if ( *date_fmt == '\0' ) {
+    /* Imitate what GNU 'date' does with NO format string! */
+    printf ("\n");
+    return(0);
+  }
+
+  /* Handle special conversions */
+
+  if( strncmp( date_fmt, "%f", 2) == 0 ) {
+    date_fmt = "%Y.%m.%d-%H:%M:%S";
+  }
+
+  /* Print OUTPUT (after ALL that!) */
+  t_buff = malloc(201);
+  strftime(t_buff, 200, date_fmt, &tm_time);
+  printf("%s\n", t_buff);
+
+  return(0);
+
+}
diff --git a/dd.c b/dd.c
new file mode 100644
index 000000000..8f1b9d409
--- /dev/null
+++ b/dd.c
@@ -0,0 +1,307 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "dd" command, originally taken from sash.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Majorly modified, and bugs fixed for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+#include "internal.h"
+#ifdef BB_DD
+
+const char dd_usage[] = 
+"Copy a file, converting and formatting according to options\n\
+\n\
+usage: [if=name] [of=name] [bs=n] [count=n]\n\
+\tif=FILE\tread from FILE instead of stdin\n\
+\tof=FILE\twrite to FILE instead of stout\n\
+\tbs=n\tread and write N bytes at a time\n\
+\tcount=n\tcopy only n input blocks\n\
+\n\
+BYTES may be suffixed: by k for x1024, b for x512, and w for x2.\n";
+
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+
+
+#define	PAR_NONE	0
+#define	PAR_IF		1
+#define	PAR_OF		2
+#define	PAR_BS		3
+#define	PAR_COUNT	4
+
+
+typedef	struct
+{
+	const char *	name;
+	int		value;
+} PARAM;
+
+
+static const PARAM	params[] =
+{
+	{"if",		PAR_IF},
+	{"of",		PAR_OF},
+	{"bs",		PAR_BS},
+	{"count",	PAR_COUNT},
+	{NULL,		PAR_NONE}
+};
+
+
+static	long	getNum(const char * cp);
+
+extern int
+dd_main (struct FileInfo *unused, int argc, char **argv)
+{
+	const char *	str;
+	const PARAM *	par;
+	const char *	inFile;
+	const char *	outFile;
+	char *		cp;
+	int		inFd;
+	int		outFd;
+	int		inCc=0;
+	int		outCc;
+	int		blockSize;
+	long		count;
+	long		intotal;
+	long		outTotal;
+	unsigned char*	buf;
+	unsigned char	localBuf[BUF_SIZE];
+
+	inFile = NULL;
+	outFile = NULL;
+	blockSize = 512;
+	count = 1;
+
+
+	while (--argc > 0)
+	{
+		str = *++argv;
+		cp = strchr(str, '=');
+
+		if (cp == NULL)
+		{
+			fprintf(stderr, "Bad dd argument\n");
+			goto usage;
+		}
+
+		*cp++ = '\0';
+
+		for (par = params; par->name; par++)
+		{
+			if (strcmp(str, par->name) == 0)
+				break;
+		}
+
+		switch (par->value)
+		{
+			case PAR_IF:
+				if (inFile)
+				{
+					fprintf(stderr, "Multiple input files illegal\n");
+					goto usage;
+				}
+	
+				//fprintf(stderr, "if=%s\n", cp);
+				inFile = cp;
+				break;
+
+			case PAR_OF:
+				if (outFile)
+				{
+					fprintf(stderr, "Multiple output files illegal\n");
+					goto usage;
+				}
+
+				//fprintf(stderr, "of=%s\n", cp);
+				outFile = cp;
+				break;
+
+			case PAR_BS:
+				blockSize = getNum(cp);
+				//fprintf(stderr, "bs=%d\n", blockSize);
+
+				if (blockSize <= 0)
+				{
+					fprintf(stderr, "Bad block size value\n");
+					goto usage;
+				}
+
+				break;
+
+			case PAR_COUNT:
+				count = getNum(cp);
+				//fprintf(stderr, "count=%ld\n", count);
+
+				if (count < 0)
+				{
+					fprintf(stderr, "Bad count value\n");
+					goto usage;
+				}
+
+				break;
+
+			default:
+				goto usage;
+		}
+	}
+
+	buf = localBuf;
+
+	if (blockSize > sizeof(localBuf))
+	{
+		buf = malloc(blockSize);
+
+		if (buf == NULL)
+		{
+			fprintf(stderr, "Cannot allocate buffer\n");
+			return 1;
+		}
+	}
+
+	intotal = 0;
+	outTotal = 0;
+
+	if (inFile == NULL)
+	    inFd = STDIN;
+	else
+	    inFd = open(inFile, 0);
+
+	if (inFd < 0)
+	{
+		perror(inFile);
+
+		if (buf != localBuf)
+			free(buf);
+
+		return 1;
+	}
+
+	if (outFile == NULL)
+	    outFd = STDOUT;
+	else
+	    outFd = creat(outFile, 0666);
+
+	if (outFd < 0)
+	{
+		perror(outFile);
+		close(inFd);
+
+		if (buf != localBuf)
+			free(buf);
+
+		return 1;
+	}
+
+	while ( outTotal < count*blockSize )
+	{
+		inCc = read(inFd, buf, blockSize);
+		if (inCc < 0) {
+		    perror(inFile);
+		    goto cleanup;
+		}
+		//fprintf(stderr, "read in =%d\n", inCc);
+		intotal += inCc;
+		cp = buf;
+
+
+		while ( intotal > outTotal )
+		{
+			if (outTotal+inCc > count*blockSize)
+			    inCc=count*blockSize-outTotal;
+			outCc = write(outFd, cp, inCc);
+			if (outCc < 0)
+			{
+				perror(outFile);
+				goto cleanup;
+			}
+			//fprintf(stderr, "wrote out =%d\n", outCc);
+
+			inCc -= outCc;
+			cp += outCc;
+			outTotal += outCc;
+			//fprintf(stderr, "outTotal=%ld\n", outTotal);
+		}
+	}
+
+	if (inCc < 0)
+		perror(inFile);
+
+cleanup:
+	close(inFd);
+
+	if (close(outFd) < 0)
+		perror(outFile);
+
+	if (buf != localBuf)
+		free(buf);
+
+	printf("%ld+%d records in\n", intotal / blockSize,
+		(intotal % blockSize) != 0);
+
+	printf("%ld+%d records out\n", outTotal / blockSize,
+		(outTotal % blockSize) != 0);
+	return 0;
+usage:
+	
+	fprintf(stderr, "%s", dd_usage);
+	return 1;
+}
+
+
+/*
+ * Read a number with a possible multiplier.
+ * Returns -1 if the number format is illegal.
+ */
+static long
+getNum(const char * cp)
+{
+	long	value;
+
+	if (!isDecimal(*cp))
+		return -1;
+
+	value = 0;
+
+	while (isDecimal(*cp))
+		value = value * 10 + *cp++ - '0';
+
+	switch (*cp++)
+	{
+		case 'k':
+			value *= 1024;
+			break;
+
+		case 'b':
+			value *= 512;
+			break;
+
+		case 'w':
+			value *= 2;
+			break;
+
+		case '\0':
+			return value;
+
+		default:
+			return -1;
+	}
+
+	if (*cp)
+		return -1;
+
+	return value;
+}
+
+#endif
+/* END CODE */
+
diff --git a/descend.c b/descend.c
new file mode 100644
index 000000000..9ada7b4fc
--- /dev/null
+++ b/descend.c
@@ -0,0 +1,124 @@
+#include "internal.h"
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <errno.h>
+
+
+static int 
+noDots(const struct dirent * e)
+{
+	if ( e->d_name[0] == '.'
+	 && (e->d_name[1] == '\0'
+	  || (e->d_name[1] == '.' && e->d_name[2] == '\0')) )
+		return 0;
+	else
+		return 1;
+}
+
+extern int
+descend(
+ struct FileInfo *oldInfo
+,int 		(*function)(const struct FileInfo * i))
+{
+	char			pathname[1024];
+	struct dirent * *	names;
+	struct dirent * *	n;
+	int			length;
+	char *			filename;
+	int			status = 0;
+	int			count;
+
+	if ( *oldInfo->source == '\0' ) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	if ( oldInfo->stat.st_dev == 0
+	 && oldInfo->stat.st_ino == 0
+	 && oldInfo->stat.st_mode == 0 ) {
+		if ( lstat(oldInfo->source, &oldInfo->stat) != 0 )
+			return -1;
+		oldInfo->isSymbolicLink = ((oldInfo->stat.st_mode & S_IFMT) == S_IFLNK);
+
+		if ( oldInfo->isSymbolicLink )
+			if ( stat(oldInfo->source, &oldInfo->stat) != 0 )
+				memset((void *)&oldInfo->stat, 0, sizeof(oldInfo->stat));
+	}
+
+	if ( !oldInfo->processDirectoriesAfterTheirContents ) {
+		if ( function )
+			status = (*function)(oldInfo);
+		if ( status == 0 )
+			status = post_process(oldInfo);
+	}
+
+	if ( (count = scandir(oldInfo->source, &names, noDots, alphasort)) < 0 )
+		return -1;
+
+	length = strlen(oldInfo->source);
+	if ( oldInfo->source[length-1] == '/' )
+		length--;
+
+	memcpy(pathname, oldInfo->source, length+1);
+	pathname[length] = '/';
+	filename = &pathname[length+1];
+	
+	n = names;
+	while ( count-- > 0 ) {
+		struct FileInfo		i = *oldInfo;
+
+		strcpy(filename, (*n)->d_name);
+		free(*n++);
+
+		if ( lstat(pathname, &i.stat) != 0 && errno != ENOENT ) {
+			fprintf(stderr, "Can't stat %s: %s\n", pathname, strerror(errno));
+			return -1;
+		}
+		i.isSymbolicLink = ((i.stat.st_mode & S_IFMT) == S_IFLNK);
+
+		if ( i.isSymbolicLink )
+			if ( stat(pathname, &i.stat) != 0 )
+				memset((void *)&i.stat, 0, sizeof(i.stat));
+
+		i.source = pathname;
+
+		if ( i.dyadic ) {
+			char	d[1024];
+
+			i.destination = join_paths(d, i.destination, &i.source[i.directoryLength]);
+		}
+		else
+			i.destination = i.source;
+
+		 if ( !i.isSymbolicLink && (i.stat.st_mode & S_IFMT) == S_IFDIR )
+			status = descend(&i, function);
+		else {
+			if ( function )
+				status = (*function)(&i);
+			if ( status == 0 )
+				status = post_process(&i);
+		}
+
+		if ( !i.processDirectoriesAfterTheirContents
+		 && status == 0
+		 && (i.stat.st_mode & S_IFMT) == S_IFDIR )
+			descend(&i, function);
+
+		if ( status != 0 && !i.force ) {
+			while ( count-- > 0 )
+				free(*n++);
+			break;
+		}
+	}
+	free(names);
+
+	if ( oldInfo->processDirectoriesAfterTheirContents ) {
+		if ( function )
+			status = (*function)(oldInfo);
+		if ( status == 0 )
+			status = post_process(oldInfo);
+	}
+
+	return status;
+}
diff --git a/df.c b/df.c
new file mode 100644
index 000000000..a0692afc5
--- /dev/null
+++ b/df.c
@@ -0,0 +1,103 @@
+#include "internal.h"
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/stat.h>
+#include <sys/vfs.h>
+
+const char	df_usage[] = "df [filesystem ...]\n"
+"\n"
+"\tPrint the filesystem space used and space available.\n";
+
+
+static int
+df(const char * device, const char * mountPoint)
+{
+	struct statfs	s;
+	long		blocks_used;
+	long		blocks_percent_used;
+
+	if ( statfs(mountPoint, &s) != 0 ) {
+		name_and_error(mountPoint);
+		return 1;
+	}
+	
+	if ( s.f_blocks > 0 ) {
+		blocks_used = s.f_blocks - s.f_bfree;
+		blocks_percent_used = (long)
+		 (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
+
+/*
+		printf(
+		 "%-20s %7ld %7ld  %7ld  %5ld%%   %s\n"
+		,device
+		,s.f_blocks
+		,s.f_blocks - s.f_bfree
+		,s.f_bavail
+		,blocks_percent_used
+		,mountPoint);
+*/
+
+		printf(
+		       "%-20s %7.0f %7.0f  %7.0f  %5ld%%   %s\n"
+		       ,device
+		       ,s.f_blocks * (s.f_bsize / 1024.0)
+		       ,(s.f_blocks - s.f_bfree)  * (s.f_bsize / 1024.0)
+		       ,s.f_bavail * (s.f_bsize / 1024.0)
+		       ,blocks_percent_used
+		       ,mountPoint);
+
+	}
+
+	return 0;
+}
+
+extern int
+df_main(struct FileInfo * i, int argc, char * * argv)
+{
+	static const char header[] =
+	 "Filesystem         1024-blocks  Used Available Capacity Mounted on\n";
+	printf(header);
+
+	if ( argc > 1 ) {
+		struct mntent *	mountEntry;
+		int				status;
+
+		while ( argc > 1 ) {
+			if ( (mountEntry = findMountPoint(argv[1], "/etc/mtab")) == 0
+			 && (mountEntry = findMountPoint(argv[1], "/proc/mounts")) == 0 )
+			{
+				fprintf(stderr, "%s: can't find mount point.\n"
+				,argv[1]);
+				return 1;
+			}
+			status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir);
+			if ( status != 0 )
+				return status;
+			argc--;
+			argv++;
+		}
+		return 0;
+	}
+	else {
+		FILE *		mountTable;
+		struct mntent *	mountEntry;
+
+		if ( (mountTable = setmntent("/etc/mtab", "r")) == 0
+		 && (mountTable = setmntent("/proc/mounts", "r")) == 0
+		) {
+			name_and_error("/etc/mtab");
+			return 1;
+		}
+
+		while ( (mountEntry = getmntent(mountTable)) != 0 ) {
+			int status = df(
+			 mountEntry->mnt_fsname
+			,mountEntry->mnt_dir);
+			if ( status != 0 )
+				return status;
+		}
+		endmntent(mountTable);
+	}
+	
+	return 0;
+}
diff --git a/dmesg.c b/dmesg.c
new file mode 100644
index 000000000..a63fa3d39
--- /dev/null
+++ b/dmesg.c
@@ -0,0 +1,95 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+/* dmesg.c -- Print out the contents of the kernel ring buffer
+ * Created: Sat Oct  9 16:19:47 1993
+ * Revised: Thu Oct 28 21:52:17 1993 by faith@cs.unc.edu
+ * Copyright 1993 Theodore Ts'o (tytso@athena.mit.edu)
+ * This program comes with ABSOLUTELY NO WARRANTY.
+ * Modifications by Rick Sladkey (jrs@world.std.com)
+ * from util-linux; adapted for busybox
+ */
+
+#include <linux/unistd.h>
+#include <stdio.h>
+#include <getopt.h>
+
+#define __NR_klog __NR_syslog
+
+#if defined(__GLIBC__)
+#include <sys/klog.h>
+#define klog klogctl
+#else
+static inline _syscall3(int,klog,int,type,char *,b,int,len)
+#endif /* __GLIBC__ */
+
+const char			dmesg_usage[] = "dmesg";
+
+int
+dmesg_main(struct FileInfo * info, int argc, char * * argv)
+{
+
+   char buf[4096];
+   int  i;
+   int  n;
+   int  c;
+   int  level = 0;
+   int  lastc;
+   int  cmd = 3;
+
+   while ((c = getopt( argc, argv, "cn:" )) != EOF) {
+      switch (c) {
+      case 'c':
+	 cmd = 4;
+	 break;
+      case 'n':
+	 cmd = 8;
+	 level = atoi(optarg);
+	 break;
+      case '?':
+      default:
+	 usage(dmesg_usage);
+	 exit(1);
+      }
+   }
+   argc -= optind;
+   argv += optind;
+   
+   if (argc > 1) {
+      usage(dmesg_usage);
+      exit(1);
+   }
+
+   if (cmd == 8) {
+      n = klog( cmd, NULL, level );
+      if (n < 0) {
+	 perror( "klog" );
+	 exit( 1 );
+      }
+      exit( 0 );
+   }
+
+   n = klog( cmd, buf, sizeof( buf ) );
+   if (n < 0) {
+      perror( "klog" );
+      exit( 1 );
+   }
+
+   lastc = '\n';
+   for (i = 0; i < n; i++) {
+      if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') {
+	 i++;
+	 while (buf[i] >= '0' && buf[i] <= '9')
+	    i++;
+	 if (buf[i] == '>')
+	    i++;
+      }
+      lastc = buf[i];
+      putchar( lastc );
+   }
+   if (lastc != '\n')
+      putchar( '\n' );
+   return 0;
+}
diff --git a/dutmp.c b/dutmp.c
new file mode 100644
index 000000000..e92b6700f
--- /dev/null
+++ b/dutmp.c
@@ -0,0 +1,47 @@
+/*
+ * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
+ * 
+ * dutmp
+ * Takes utmp formated file on stdin and dumps it's contents 
+ * out in colon delimited fields. Easy to 'cut' for shell based 
+ * versions of 'who', 'last', etc. IP Addr is output in hex, 
+ * little endian on x86.
+ * 
+ * made against libc6
+ */
+ 
+#include "internal.h"
+#include <stdio.h>
+#include <utmp.h>
+
+const char      dutmp_usage[] = "dutmp\n"
+"\n"
+"\tDump file or stdin utmp file format to stdout, pipe delimited.\n"
+"\tdutmp /var/run/utmp\n";
+
+extern int
+dutmp_fn(const struct FileInfo * i)
+{
+
+FILE *	f = stdin;
+struct utmp * ut = (struct utmp *) malloc(sizeof(struct utmp) );
+
+	if ( i ) 
+		if (! (f = fopen(i->source, "r"))) {
+			name_and_error(i->source);
+			return 1;
+		}
+
+	while (fread (ut, 1, sizeof(struct utmp), f)) {
+		//printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", 
+		printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
+		ut->ut_type, ut->ut_pid, ut->ut_line,
+		ut->ut_id, ut->ut_user,	ut->ut_host,
+		ut->ut_exit.e_termination, ut->ut_exit.e_exit,
+		ut->ut_session,
+		ut->ut_tv.tv_sec, ut->ut_tv.tv_usec,
+		ut->ut_addr);
+	}
+
+return 0;	
+}
diff --git a/dyadic.c b/dyadic.c
new file mode 100644
index 000000000..8136bb573
--- /dev/null
+++ b/dyadic.c
@@ -0,0 +1,28 @@
+#include "internal.h"
+#include <stdio.h>
+
+extern int
+dyadic_main(
+ struct FileInfo *	i
+,int				argc
+,char * *			argv)
+{
+	int		flags;
+
+	i->dyadic = 1;
+	i->destination = argv[argc - 1];
+
+	for ( flags = 0; flags < (argc - 1) && argv[flags + 1][0] == '-' ; flags++ )
+		;
+	if ( argc - flags < 3 ) {
+		usage(i->applet->usage);
+		return 1;
+	}
+	else if ( argc - flags > 3 ) {
+		if ( !is_a_directory(i->destination) ) {
+			fprintf(stderr, "%s: not a directory.\n", i->destination);
+			return 1;
+		}
+	}
+	return monadic_main(i, argc - 1, argv);
+}
diff --git a/examples/busybox.spec b/examples/busybox.spec
new file mode 100644
index 000000000..46bd7f484
--- /dev/null
+++ b/examples/busybox.spec
@@ -0,0 +1,43 @@
+Name: busybox
+Version: 0.29alpha
+Release: 1
+Group: System/Utilities
+Summary: BusyBox is a tiny suite of Unix utilities in a multi-call binary.
+Copyright: GPL
+Packager : Erik Andersen <andersen@lineo.com>
+Conflicts: fileutils grep shellutils
+Buildroot: /tmp/%{Name}-%{Version}
+Source: busybox-0.29a1.tar.gz
+
+%Description
+BusyBox is a suite of "tiny" Unix utilities in a multi-call binary. It
+provides a pretty complete environment that fits on a floppy or in a
+ROM. Just add "ash" (Keith Almquists tiny Bourne shell clone) and "ae",
+and a kernel and you have a full system. This is used on the Debian
+install disk and in an internet router, and it makes a good environment
+for a "rescue" disk or any small or embedded system.
+
+%Prep
+%setup -q -n busybox
+
+%Build
+make
+
+%Install
+rm -rf $RPM_BUILD_ROOT
+mkdir -p $RPM_BUILD_ROOT/bin
+h=`cat busybox.links`
+
+for i in $h ; do
+	mkdir -p $RPM_BUILD_ROOT/`echo $i | sed -e 's/\(^.*\/\)\(.*\)/\1/g' `
+	(cd $RPM_BUILD_ROOT/bin ; ln -s ln `echo $i | sed -e 's/\(^.*\/\)\(.*\)/\2/g' ` ); 
+done 
+rm -f $RPM_BUILD_ROOT/bin/ln
+install -m 755 busybox $RPM_BUILD_ROOT/bin/ln
+
+%Clean
+rm -rf $RPM_BUILD_ROOT
+
+%Files 
+%defattr(-,root,root)
+/
diff --git a/fdflush.c b/fdflush.c
new file mode 100644
index 000000000..a15e9b3f7
--- /dev/null
+++ b/fdflush.c
@@ -0,0 +1,36 @@
+#include "internal.h"
+#include <sys/ioctl.h>
+#include <linux/fd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+const char			fdflush_usage[] = "fdflush device";
+
+int 
+fdflush(const char *filename) 
+{
+	int	status;
+	int	fd = open(filename, 0);
+
+	if ( fd < 0 ) {
+		name_and_error(filename);
+		return 1;
+	}
+
+	status = ioctl(fd, FDFLUSH, 0);
+	close(fd);
+
+	if ( status != 0 ) {
+		name_and_error(filename);
+		return 1;
+	}
+	return 0;
+}
+
+
+int
+fdflush_fn(const struct FileInfo * i)
+{
+  return fdflush(i->source);
+}
diff --git a/find.c b/find.c
new file mode 100644
index 000000000..b3ac1ff5a
--- /dev/null
+++ b/find.c
@@ -0,0 +1,23 @@
+#include "internal.h"
+#include <errno.h>
+#include <stdio.h>
+
+const char	find_usage[] = "find dir [pattern]\n"
+"\n"
+"\tFind files.\n";
+
+extern int
+find_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->recursive=1;
+	i->processDirectoriesAfterTheirContents=1;
+	return monadic_main(i, argc, argv);
+}
+
+extern int
+find_fn(const struct FileInfo * i)
+{
+	printf("%s\n",i->source);
+
+	return(0);      
+}
diff --git a/findmount.c b/findmount.c
new file mode 100644
index 000000000..26e28fcd3
--- /dev/null
+++ b/findmount.c
@@ -0,0 +1,46 @@
+#include "internal.h"
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/stat.h>
+
+/*
+ * Given a block device, find the mount table entry if that block device
+ * is mounted.
+ *
+ * Given any other file (or directory), find the mount table entry for its
+ * filesystem.
+ */
+extern struct mntent *
+findMountPoint(const char * name, const char * table)
+{
+	struct stat	s;
+	dev_t			mountDevice;
+	FILE *			mountTable;
+	struct mntent *	mountEntry;
+
+	if ( stat(name, &s) != 0 )
+		return 0;
+
+	if ( (s.st_mode & S_IFMT) == S_IFBLK )
+		mountDevice = s.st_rdev;
+	else
+		mountDevice = s.st_dev;
+
+	
+	if ( (mountTable = setmntent(table, "r")) == 0 )
+		return 0;
+
+	while ( (mountEntry = getmntent(mountTable)) != 0 ) {
+		if ( strcmp(name, mountEntry->mnt_dir) == 0
+		 || strcmp(name, mountEntry->mnt_fsname) == 0 )	/* String match. */
+			break;
+		if ( stat(mountEntry->mnt_fsname, &s) == 0
+		 && s.st_rdev == mountDevice )	/* Match the device. */
+				break;
+		if ( stat(mountEntry->mnt_dir, &s) == 0
+		 && s.st_dev == mountDevice )	/* Match the directory's mount point. */
+			break;
+	}
+	endmntent(mountTable);
+	return mountEntry;
+}
diff --git a/findutils/find.c b/findutils/find.c
new file mode 100644
index 000000000..b3ac1ff5a
--- /dev/null
+++ b/findutils/find.c
@@ -0,0 +1,23 @@
+#include "internal.h"
+#include <errno.h>
+#include <stdio.h>
+
+const char	find_usage[] = "find dir [pattern]\n"
+"\n"
+"\tFind files.\n";
+
+extern int
+find_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->recursive=1;
+	i->processDirectoriesAfterTheirContents=1;
+	return monadic_main(i, argc, argv);
+}
+
+extern int
+find_fn(const struct FileInfo * i)
+{
+	printf("%s\n",i->source);
+
+	return(0);      
+}
diff --git a/findutils/grep.c b/findutils/grep.c
new file mode 100644
index 000000000..3779e5510
--- /dev/null
+++ b/findutils/grep.c
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "grep" command, taken from sash.
+ * This provides basic file searching.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+#include "internal.h"
+#ifdef BB_GREP
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+#include <ctype.h>
+
+
+const char grep_usage[] =
+"Search the input file(s) for lines matching the given pattern.\n"
+"\tI search stdin if no files are given.\n"
+"\tI can't grok full regular expressions.\n"
+"usage: grep [in] PATTERN [FILES]...\n"
+"\ti=ignore case, n=list line numbers\n";
+
+
+
+static	BOOL	search
+	(const char * string, const char * word, BOOL ignoreCase);
+
+
+extern int 
+grep_main(struct FileInfo * unused, int argc, char ** argv)
+{
+	FILE *		fp;
+	const char *	word;
+	const char *	name;
+	const char *	cp;
+	BOOL		tellName;
+	BOOL		ignoreCase;
+	BOOL		tellLine;
+	long		line;
+	char		buf[BUF_SIZE];
+
+	ignoreCase = FALSE;
+	tellLine = FALSE;
+
+	argc--;
+	argv++;
+	if (argc < 1)
+	{
+		fprintf(stderr, "%s", grep_usage);
+		return 1;
+	}
+
+	if (**argv == '-')
+	{
+		argc--;
+		cp = *argv++;
+
+		while (*++cp) switch (*cp)
+		{
+			case 'i':
+				ignoreCase = TRUE;
+				break;
+
+			case 'n':
+				tellLine = TRUE;
+				break;
+
+			default:
+				fprintf(stderr, "Unknown option\n");
+				return 1;
+		}
+	}
+
+	word = *argv++;
+	argc--;
+
+	tellName = (argc > 1);
+
+	while (argc-- > 0)
+	{
+		name = *argv++;
+
+		fp = fopen(name, "r");
+
+		if (fp == NULL)
+		{
+			perror(name);
+
+			continue;
+		}
+
+		line = 0;
+
+		while (fgets(buf, sizeof(buf), fp))
+		{
+			line++;
+
+			cp = &buf[strlen(buf) - 1];
+
+			if (*cp != '\n')
+				fprintf(stderr, "%s: Line too long\n", name);
+
+			if (search(buf, word, ignoreCase))
+			{
+				if (tellName)
+					printf("%s: ", name);
+
+				if (tellLine)
+					printf("%ld: ", line);
+
+				fputs(buf, stdout);
+			}
+		}
+
+		if (ferror(fp))
+			perror(name);
+
+		fclose(fp);
+	}
+	return 0;
+}
+
+
+/*
+ * See if the specified word is found in the specified string.
+ */
+static BOOL
+search(const char * string, const char * word, BOOL ignoreCase)
+{
+	const char *	cp1;
+	const char *	cp2;
+	int		len;
+	int		lowFirst;
+	int		ch1;
+	int		ch2;
+
+	len = strlen(word);
+
+	if (!ignoreCase)
+	{
+		while (TRUE)
+		{
+			string = strchr(string, word[0]);
+
+			if (string == NULL)
+				return FALSE;
+
+			if (memcmp(string, word, len) == 0)
+				return TRUE;
+
+			string++;
+		}
+	}
+
+	/*
+	 * Here if we need to check case independence.
+	 * Do the search by lower casing both strings.
+	 */
+	lowFirst = *word;
+
+	if (isupper(lowFirst))
+		lowFirst = tolower(lowFirst);
+
+	while (TRUE)
+	{
+		while (*string && (*string != lowFirst) &&
+			(!isupper(*string) || (tolower(*string) != lowFirst)))
+		{
+			string++;
+		}
+
+		if (*string == '\0')
+			return FALSE;
+
+		cp1 = string;
+		cp2 = word;
+
+		do
+		{
+			if (*cp2 == '\0')
+				return TRUE;
+
+			ch1 = *cp1++;
+
+			if (isupper(ch1))
+				ch1 = tolower(ch1);
+
+			ch2 = *cp2++;
+
+			if (isupper(ch2))
+				ch2 = tolower(ch2);
+
+		}
+		while (ch1 == ch2);
+
+		string++;
+	}
+}
+
+#endif
+/* END CODE */
diff --git a/grep.c b/grep.c
new file mode 100644
index 000000000..3779e5510
--- /dev/null
+++ b/grep.c
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "grep" command, taken from sash.
+ * This provides basic file searching.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+#include "internal.h"
+#ifdef BB_GREP
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+#include <ctype.h>
+
+
+const char grep_usage[] =
+"Search the input file(s) for lines matching the given pattern.\n"
+"\tI search stdin if no files are given.\n"
+"\tI can't grok full regular expressions.\n"
+"usage: grep [in] PATTERN [FILES]...\n"
+"\ti=ignore case, n=list line numbers\n";
+
+
+
+static	BOOL	search
+	(const char * string, const char * word, BOOL ignoreCase);
+
+
+extern int 
+grep_main(struct FileInfo * unused, int argc, char ** argv)
+{
+	FILE *		fp;
+	const char *	word;
+	const char *	name;
+	const char *	cp;
+	BOOL		tellName;
+	BOOL		ignoreCase;
+	BOOL		tellLine;
+	long		line;
+	char		buf[BUF_SIZE];
+
+	ignoreCase = FALSE;
+	tellLine = FALSE;
+
+	argc--;
+	argv++;
+	if (argc < 1)
+	{
+		fprintf(stderr, "%s", grep_usage);
+		return 1;
+	}
+
+	if (**argv == '-')
+	{
+		argc--;
+		cp = *argv++;
+
+		while (*++cp) switch (*cp)
+		{
+			case 'i':
+				ignoreCase = TRUE;
+				break;
+
+			case 'n':
+				tellLine = TRUE;
+				break;
+
+			default:
+				fprintf(stderr, "Unknown option\n");
+				return 1;
+		}
+	}
+
+	word = *argv++;
+	argc--;
+
+	tellName = (argc > 1);
+
+	while (argc-- > 0)
+	{
+		name = *argv++;
+
+		fp = fopen(name, "r");
+
+		if (fp == NULL)
+		{
+			perror(name);
+
+			continue;
+		}
+
+		line = 0;
+
+		while (fgets(buf, sizeof(buf), fp))
+		{
+			line++;
+
+			cp = &buf[strlen(buf) - 1];
+
+			if (*cp != '\n')
+				fprintf(stderr, "%s: Line too long\n", name);
+
+			if (search(buf, word, ignoreCase))
+			{
+				if (tellName)
+					printf("%s: ", name);
+
+				if (tellLine)
+					printf("%ld: ", line);
+
+				fputs(buf, stdout);
+			}
+		}
+
+		if (ferror(fp))
+			perror(name);
+
+		fclose(fp);
+	}
+	return 0;
+}
+
+
+/*
+ * See if the specified word is found in the specified string.
+ */
+static BOOL
+search(const char * string, const char * word, BOOL ignoreCase)
+{
+	const char *	cp1;
+	const char *	cp2;
+	int		len;
+	int		lowFirst;
+	int		ch1;
+	int		ch2;
+
+	len = strlen(word);
+
+	if (!ignoreCase)
+	{
+		while (TRUE)
+		{
+			string = strchr(string, word[0]);
+
+			if (string == NULL)
+				return FALSE;
+
+			if (memcmp(string, word, len) == 0)
+				return TRUE;
+
+			string++;
+		}
+	}
+
+	/*
+	 * Here if we need to check case independence.
+	 * Do the search by lower casing both strings.
+	 */
+	lowFirst = *word;
+
+	if (isupper(lowFirst))
+		lowFirst = tolower(lowFirst);
+
+	while (TRUE)
+	{
+		while (*string && (*string != lowFirst) &&
+			(!isupper(*string) || (tolower(*string) != lowFirst)))
+		{
+			string++;
+		}
+
+		if (*string == '\0')
+			return FALSE;
+
+		cp1 = string;
+		cp2 = word;
+
+		do
+		{
+			if (*cp2 == '\0')
+				return TRUE;
+
+			ch1 = *cp1++;
+
+			if (isupper(ch1))
+				ch1 = tolower(ch1);
+
+			ch2 = *cp2++;
+
+			if (isupper(ch2))
+				ch2 = tolower(ch2);
+
+		}
+		while (ch1 == ch2);
+
+		string++;
+	}
+}
+
+#endif
+/* END CODE */
diff --git a/gzip.c b/gzip.c
new file mode 100644
index 000000000..6fd2e3971
--- /dev/null
+++ b/gzip.c
@@ -0,0 +1,3231 @@
+/* gzip.c -- this is a stripped down version of gzip I put into busybox, it does
+ * only standard in to standard out with -9 compression.  It also requires the
+ * zcat module for some important functions.  
+ *
+ * Charles P. Wright <cpw@unix.asb.com>
+ */
+#include "internal.h"
+#ifdef BB_GZIP
+
+#ifndef BB_ZCAT
+error: you need zcat to have gzip support!
+#endif
+
+const char gzip_usage[] = "gzip\nignores all command line arguments\ncompress stdin to stdout with -9 compression\n";
+
+/* gzip.h -- common declarations for all gzip modules
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if defined(__STDC__) || defined(PROTO)
+#  define OF(args)  args
+#else
+#  define OF(args)  ()
+#endif
+
+#ifdef __STDC__
+   typedef void *voidp;
+#else
+   typedef char *voidp;
+#endif
+
+/* I don't like nested includes, but the string and io functions are used
+ * too often
+ */
+#include <stdio.h>
+#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
+#  include <string.h>
+#  if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
+#    include <memory.h>
+#  endif
+#  define memzero(s, n)     memset ((voidp)(s), 0, (n))
+#else
+#  include <strings.h>
+#  define strchr            index 
+#  define strrchr           rindex
+#  define memcpy(d, s, n)   bcopy((s), (d), (n)) 
+#  define memcmp(s1, s2, n) bcmp((s1), (s2), (n)) 
+#  define memzero(s, n)     bzero((s), (n))
+#endif
+
+#ifndef RETSIGTYPE
+#  define RETSIGTYPE void
+#endif
+
+#define local static
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+/* Return codes from gzip */
+#define OK      0
+#define ERROR   1
+#define WARNING 2
+
+/* Compression methods (see algorithm.doc) */
+#define STORED      0
+#define COMPRESSED  1
+#define PACKED      2
+#define LZHED       3
+/* methods 4 to 7 reserved */
+#define DEFLATED    8
+#define MAX_METHODS 9
+extern int method;         /* compression method */
+
+/* To save memory for 16 bit systems, some arrays are overlaid between
+ * the various modules:
+ * deflate:  prev+head   window      d_buf  l_buf  outbuf
+ * unlzw:    tab_prefix  tab_suffix  stack  inbuf  outbuf
+ * inflate:              window             inbuf
+ * unpack:               window             inbuf  prefix_len
+ * unlzh:    left+right  window      c_table inbuf c_len
+ * For compression, input is done in window[]. For decompression, output
+ * is done in window except for unlzw.
+ */
+
+#ifndef	INBUFSIZ
+#  ifdef SMALL_MEM
+#    define INBUFSIZ  0x2000  /* input buffer size */
+#  else
+#    define INBUFSIZ  0x8000  /* input buffer size */
+#  endif
+#endif
+#define INBUF_EXTRA  64     /* required by unlzw() */
+
+#ifndef	OUTBUFSIZ
+#  ifdef SMALL_MEM
+#    define OUTBUFSIZ   8192  /* output buffer size */
+#  else
+#    define OUTBUFSIZ  16384  /* output buffer size */
+#  endif
+#endif
+#define OUTBUF_EXTRA 2048   /* required by unlzw() */
+
+#ifndef DIST_BUFSIZE
+#  ifdef SMALL_MEM
+#    define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
+#  else
+#    define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
+#  endif
+#endif
+
+#ifdef DYN_ALLOC
+#  define EXTERN(type, array)  extern type * near array
+#  define DECLARE(type, array, size)  type * near array
+#  define ALLOC(type, array, size) { \
+      array = (type*)fcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
+      if (array == NULL) error("insufficient memory"); \
+   }
+#  define FREE(array) {if (array != NULL) fcfree(array), array=NULL;}
+#else
+#  define EXTERN(type, array)  extern type array[]
+#  define DECLARE(type, array, size)  type array[size]
+#  define ALLOC(type, array, size)
+#  define FREE(array)
+#endif
+
+EXTERN(uch, inbuf);          /* input buffer */
+EXTERN(uch, outbuf);         /* output buffer */
+EXTERN(ush, d_buf);          /* buffer for distances, see trees.c */
+EXTERN(uch, window);         /* Sliding window and suffix table (unlzw) */
+#define tab_suffix window
+#ifndef MAXSEG_64K
+#  define tab_prefix prev    /* hash link (see deflate.c) */
+#  define head (prev+WSIZE)  /* hash head (see deflate.c) */
+   EXTERN(ush, tab_prefix);  /* prefix code (see unlzw.c) */
+#else
+#  define tab_prefix0 prev
+#  define head tab_prefix1
+   EXTERN(ush, tab_prefix0); /* prefix for even codes */
+   EXTERN(ush, tab_prefix1); /* prefix for odd  codes */
+#endif
+
+extern unsigned insize; /* valid bytes in inbuf */
+extern unsigned inptr;  /* index of next byte to be processed in inbuf */
+extern unsigned outcnt; /* bytes in output buffer */
+
+extern long bytes_in;   /* number of input bytes */
+extern long bytes_out;  /* number of output bytes */
+extern long header_bytes;/* number of bytes in gzip header */
+
+#define isize bytes_in
+/* for compatibility with old zip sources (to be cleaned) */
+
+extern int  ifd;        /* input file descriptor */
+extern int  ofd;        /* output file descriptor */
+extern char ifname[];   /* input file name or "stdin" */
+extern char ofname[];   /* output file name or "stdout" */
+extern char *progname;  /* program name */
+
+extern long time_stamp; /* original time stamp (modification time) */
+extern long ifile_size; /* input file size, -1 for devices (debug only) */
+
+typedef int file_t;     /* Do not use stdio */
+#define NO_FILE  (-1)   /* in memory compression */
+
+
+#define	PACK_MAGIC     "\037\036" /* Magic header for packed files */
+#define	GZIP_MAGIC     "\037\213" /* Magic header for gzip files, 1F 8B */
+#define	OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */
+#define	LZH_MAGIC      "\037\240" /* Magic header for SCO LZH Compress files*/
+#define PKZIP_MAGIC    "\120\113\003\004" /* Magic header for pkzip files */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+/* internal file attribute */
+#define UNKNOWN 0xffff
+#define BINARY  0
+#define ASCII   1
+
+#ifndef WSIZE
+#  define WSIZE 0x8000     /* window size--must be a power of two, and */
+#endif                     /*  at least 32K for zip's deflate method */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST  (WSIZE-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+extern int decrypt;        /* flag to turn on decryption */
+extern int exit_code;      /* program exit code */
+extern int verbose;        /* be verbose (-v) */
+extern int quiet;          /* be quiet (-q) */
+extern int test;           /* check .z file integrity */
+extern int to_stdout;      /* output to stdout (-c) */
+extern int save_orig_name; /* set if original name must be saved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
+#define try_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
+
+/* put_byte is used for the compressed output, put_ubyte for the
+ * uncompressed output. However unlzw() uses window for its
+ * suffix table instead of its output buffer, so it does not use put_ubyte
+ * (to be cleaned up).
+ */
+#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
+   flush_outbuf();}
+#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
+   flush_window();}
+
+/* Output a 16 bit value, lsb first */
+#define put_short(w) \
+{ if (outcnt < OUTBUFSIZ-2) { \
+    outbuf[outcnt++] = (uch) ((w) & 0xff); \
+    outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
+  } else { \
+    put_byte((uch)((w) & 0xff)); \
+    put_byte((uch)((ush)(w) >> 8)); \
+  } \
+}
+
+/* Output a 32 bit value to the bit stream, lsb first */
+#define put_long(n) { \
+    put_short((n) & 0xffff); \
+    put_short(((ulg)(n)) >> 16); \
+}
+
+#define seekable()    0  /* force sequential output */
+#define translate_eol 0  /* no option -a yet */
+
+#define tolow(c)  (isupper(c) ? (c)-'A'+'a' : (c))    /* force to lower case */
+
+/* Macros for getting two-byte and four-byte header values */
+#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
+#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+#define WARN(msg) {if (!quiet) fprintf msg ; \
+		   if (exit_code == OK) exit_code = WARNING;}
+
+local void do_exit(int exitcode);
+
+	/* in zip.c: */
+extern int zip        OF((int in, int out));
+extern int file_read  OF((char *buf,  unsigned size));
+
+	/* in unzip.c */
+extern int unzip      OF((int in, int out));
+extern int check_zipfile OF((int in));
+
+	/* in unpack.c */
+extern int unpack     OF((int in, int out));
+
+	/* in unlzh.c */
+extern int unlzh      OF((int in, int out));
+
+	/* in gzip.c */
+RETSIGTYPE abort_gzip OF((void));
+
+        /* in deflate.c */
+void lm_init OF((ush *flags));
+ulg  deflate OF((void));
+
+        /* in trees.c */
+void ct_init     OF((ush *attr, int *method));
+int  ct_tally    OF((int dist, int lc));
+ulg  flush_block OF((char *buf, ulg stored_len, int eof));
+
+        /* in bits.c */
+void     bi_init    OF((file_t zipfile));
+void     send_bits  OF((int value, int length));
+unsigned bi_reverse OF((unsigned value, int length));
+void     bi_windup  OF((void));
+void     copy_block OF((char *buf, unsigned len, int header));
+extern   int (*read_buf) OF((char *buf, unsigned size));
+
+	/* in util.c: */
+extern int copy           OF((int in, int out));
+extern ulg  updcrc        OF((uch *s, unsigned n));
+extern void clear_bufs    OF((void));
+extern int  fill_inbuf    OF((int eof_ok));
+extern void flush_outbuf  OF((void));
+extern void flush_window  OF((void));
+extern void write_buf     OF((int fd, voidp buf, unsigned cnt));
+extern char *strlwr       OF((char *s));
+extern char *add_envopt   OF((int *argcp, char ***argvp, char *env));
+extern void error         OF((char *m));
+extern void warn          OF((char *a, char *b));
+extern void read_error    OF((void));
+extern void write_error   OF((void));
+extern void display_ratio OF((long num, long den, FILE *file));
+extern voidp xmalloc      OF((unsigned int size));
+
+	/* in inflate.c */
+extern int inflate OF((void));
+/* lzw.h -- define the lzw functions.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if !defined(OF) && defined(lint)
+#  include "gzip.h"
+#endif
+
+#ifndef BITS
+#  define BITS 16
+#endif
+#define INIT_BITS 9              /* Initial number of bits per code */
+
+#define BIT_MASK    0x1f /* Mask for 'number of compression bits' */
+/* Mask 0x20 is reserved to mean a fourth header byte, and 0x40 is free.
+ * It's a pity that old uncompress does not check bit 0x20. That makes
+ * extension of the format actually undesirable because old compress
+ * would just crash on the new format instead of giving a meaningful
+ * error message. It does check the number of bits, but it's more
+ * helpful to say "unsupported format, get a new version" than
+ * "can only handle 16 bits".
+ */
+
+#define BLOCK_MODE  0x80
+/* Block compression: if table is full and compression rate is dropping,
+ * clear the dictionary.
+ */
+
+#define LZW_RESERVED 0x60 /* reserved bits */
+
+#define	CLEAR  256       /* flush the dictionary */
+#define FIRST  (CLEAR+1) /* first free entry */
+
+extern int maxbits;      /* max bits per code for LZW */
+extern int block_mode;   /* block compress mode -C compatible with 2.0 */
+
+/* revision.h -- define the version number
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#define VERSION "1.2.4"
+#define PATCHLEVEL 0
+#define REVDATE "18 Aug 93"
+
+/* This version does not support compression into old compress format: */
+#ifdef LZW
+#  undef LZW
+#endif
+
+/* $Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+/* tailor.h -- target dependent definitions
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/* The target dependent definitions should be defined here only.
+ * The target dependent functions should be defined in tailor.c.
+ */
+
+/* $Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+
+#if defined(__OS2__) && !defined(OS2)
+#  define OS2
+#endif
+
+#if defined(OS2) && defined(MSDOS) /* MS C under OS/2 */
+#  undef MSDOS
+#endif
+
+#ifdef MSDOS
+#  ifdef __GNUC__
+     /* DJGPP version 1.09+ on MS-DOS.
+      * The DJGPP 1.09 stat() function must be upgraded before gzip will
+      * fully work.
+      * No need for DIRENT, since <unistd.h> defines POSIX_SOURCE which
+      * implies DIRENT.
+      */
+#    define near
+#  else
+#    define MAXSEG_64K
+#    ifdef __TURBOC__
+#      define NO_OFF_T
+#      ifdef __BORLANDC__
+#        define DIRENT
+#      else
+#        define NO_UTIME
+#      endif
+#    else /* MSC */
+#      define HAVE_SYS_UTIME_H
+#      define NO_UTIME_H
+#    endif
+#  endif
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  128
+#  define NO_MULTIPLE_DOTS
+#  define MAX_EXT_CHARS 3
+#  define Z_SUFFIX "z"
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  define NO_SIZE_CHECK
+#  define casemap(c) tolow(c) /* Force file names to lower case */
+#  include <io.h>
+#  define OS_CODE  0x00
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  if !defined(NO_ASM) && !defined(ASMV)
+#    define ASMV
+#  endif
+#else
+#  define near
+#endif
+
+#ifdef OS2
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  260
+#  ifdef OS2FAT
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define casemap(c) tolow(c)
+#  endif
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  include <io.h>
+#  define OS_CODE  0x06
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  ifdef _MSC_VER
+#    define HAVE_SYS_UTIME_H
+#    define NO_UTIME_H
+#    define MAXSEG_64K
+#    undef near
+#    define near _near
+#  endif
+#  ifdef __EMX__
+#    define HAVE_SYS_UTIME_H
+#    define NO_UTIME_H
+#    define DIRENT
+#    define EXPAND(argc,argv) \
+       {_response(&argc, &argv); _wildcard(&argc, &argv);}
+#  endif
+#  ifdef __BORLANDC__
+#    define DIRENT
+#  endif
+#  ifdef __ZTC__
+#    define NO_DIR
+#    define NO_UTIME_H
+#    include <dos.h>
+#    define EXPAND(argc,argv) \
+       {response_expand(&argc, &argv);}
+#  endif
+#endif
+
+#ifdef WIN32 /* Windows NT */
+#  define HAVE_SYS_UTIME_H
+#  define NO_UTIME_H
+#  define PATH_SEP2 '\\'
+#  define PATH_SEP3 ':'
+#  define MAX_PATH_LEN  260
+#  define NO_CHOWN
+#  define PROTO
+#  define STDC_HEADERS
+#  define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+#  include <io.h>
+#  include <malloc.h>
+#  ifdef NTFAT
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define casemap(c) tolow(c) /* Force file names to lower case */
+#  endif
+#  define OS_CODE  0x0b
+#endif
+
+#ifdef MSDOS
+#  ifdef __TURBOC__
+#    include <alloc.h>
+#    define DYN_ALLOC
+     /* Turbo C 2.0 does not accept static allocations of large arrays */
+     void * fcalloc (unsigned items, unsigned size);
+     void fcfree (void *ptr);
+#  else /* MSC */
+#    include <malloc.h>
+#    define fcalloc(nitems,itemsize) halloc((long)(nitems),(itemsize))
+#    define fcfree(ptr) hfree(ptr)
+#  endif
+#else
+#  ifdef MAXSEG_64K
+#    define fcalloc(items,size) calloc((items),(size))
+#  else
+#    define fcalloc(items,size) malloc((size_t)(items)*(size_t)(size))
+#  endif
+#  define fcfree(ptr) free(ptr)
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define PATH_SEP ']'
+#  define PATH_SEP2 ':'
+#  define SUFFIX_SEP ';'
+#  define NO_MULTIPLE_DOTS
+#  define Z_SUFFIX "-gz"
+#  define RECORD_IO 1
+#  define casemap(c) tolow(c)
+#  define OS_CODE  0x02
+#  define OPTIONS_VAR "GZIP_OPT"
+#  define STDC_HEADERS
+#  define NO_UTIME
+#  define EXPAND(argc,argv) vms_expand_args(&argc,&argv);
+#  include <file.h>
+#  define unlink delete
+#  ifdef VAXC
+#    define NO_FCNTL_H
+#    include <unixio.h>
+#  endif
+#endif
+
+#ifdef AMIGA
+#  define PATH_SEP2 ':'
+#  define STDC_HEADERS
+#  define OS_CODE  0x01
+#  define ASMV
+#  ifdef __GNUC__
+#    define DIRENT
+#    define HAVE_UNISTD_H
+#  else /* SASC */
+#    define NO_STDIN_FSTAT
+#    define SYSDIR
+#    define NO_SYMLINK
+#    define NO_CHOWN
+#    define NO_FCNTL_H
+#    include <fcntl.h> /* for read() and write() */
+#    define direct dirent
+     extern void _expand_args(int *argc, char ***argv);
+#    define EXPAND(argc,argv) _expand_args(&argc,&argv);
+#    undef  O_BINARY /* disable useless --ascii option */
+#  endif
+#endif
+
+#if defined(ATARI) || defined(atarist)
+#  ifndef STDC_HEADERS
+#    define STDC_HEADERS
+#    define HAVE_UNISTD_H
+#    define DIRENT
+#  endif
+#  define ASMV
+#  define OS_CODE  0x05
+#  ifdef TOSFS
+#    define PATH_SEP2 '\\'
+#    define PATH_SEP3 ':'
+#    define MAX_PATH_LEN  128
+#    define NO_MULTIPLE_DOTS
+#    define MAX_EXT_CHARS 3
+#    define Z_SUFFIX "z"
+#    define NO_CHOWN
+#    define casemap(c) tolow(c) /* Force file names to lower case */
+#    define NO_SYMLINK
+#  endif
+#endif
+
+#ifdef MACOS
+#  define PATH_SEP ':'
+#  define DYN_ALLOC
+#  define PROTO
+#  define NO_STDIN_FSTAT
+#  define NO_CHOWN
+#  define NO_UTIME
+#  define chmod(file, mode) (0)
+#  define OPEN(name, flags, mode) open(name, flags)
+#  define OS_CODE  0x07
+#  ifdef MPW
+#    define isatty(fd) ((fd) <= 2)
+#  endif
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+#  define PATH_SEP '>'
+#  define STDC_HEADERS
+#  define NO_MEMORY_H
+#  define NO_UTIME_H
+#  define NO_UTIME
+#  define NO_CHOWN 
+#  define NO_STDIN_FSTAT 
+#  define NO_SIZE_CHECK 
+#  define NO_SYMLINK
+#  define RECORD_IO  1
+#  define casemap(c)  tolow(c) /* Force file names to lower case */
+#  define put_char(c) put_byte((c) & 0x7F)
+#  define get_char(c) ascii2pascii(get_byte())
+#  define OS_CODE  0x0F    /* temporary, subject to change */
+#  ifdef SIGTERM
+#    undef SIGTERM         /* We don't want a signal handler for SIGTERM */
+#  endif
+#endif
+
+#if defined(pyr) && !defined(NOMEMCPY) /* Pyramid */
+#  define NOMEMCPY /* problem with overlapping copies */
+#endif
+
+#ifdef TOPS20
+#  define OS_CODE  0x0a
+#endif
+
+#ifndef unix
+#  define NO_ST_INO /* don't rely on inode numbers */
+#endif
+
+
+	/* Common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  0x03  /* assume Unix */
+#endif
+
+#ifndef PATH_SEP
+#  define PATH_SEP '/'
+#endif
+
+#ifndef casemap
+#  define casemap(c) (c)
+#endif
+
+#ifndef OPTIONS_VAR
+#  define OPTIONS_VAR "GZIP"
+#endif
+
+#ifndef Z_SUFFIX
+#  define Z_SUFFIX ".gz"
+#endif
+
+#ifdef MAX_EXT_CHARS
+#  define MAX_SUFFIX  MAX_EXT_CHARS
+#else
+#  define MAX_SUFFIX  30
+#endif
+
+#ifndef MAKE_LEGAL_NAME
+#  ifdef NO_MULTIPLE_DOTS
+#    define MAKE_LEGAL_NAME(name)   make_simple_name(name)
+#  else
+#    define MAKE_LEGAL_NAME(name)
+#  endif
+#endif
+
+#ifndef MIN_PART
+#  define MIN_PART 3
+   /* keep at least MIN_PART chars between dots in a file name. */
+#endif
+
+#ifndef EXPAND
+#  define EXPAND(argc,argv)
+#endif
+
+#ifndef RECORD_IO
+#  define RECORD_IO 0
+#endif
+
+#ifndef SET_BINARY_MODE
+#  define SET_BINARY_MODE(fd)
+#endif
+
+#ifndef OPEN
+#  define OPEN(name, flags, mode) open(name, flags, mode)
+#endif
+
+#ifndef get_char
+#  define get_char() get_byte()
+#endif
+
+#ifndef put_char
+#  define put_char(c) put_byte(c)
+#endif
+/* bits.c -- output variable-length bit strings
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+
+/*
+ *  PURPOSE
+ *
+ *      Output variable-length bit strings. Compression can be done
+ *      to a file or to memory. (The latter is not supported in this version.)
+ *
+ *  DISCUSSION
+ *
+ *      The PKZIP "deflate" file format interprets compressed file data
+ *      as a sequence of bits.  Multi-bit strings in the file may cross
+ *      byte boundaries without restriction.
+ *
+ *      The first bit of each byte is the low-order bit.
+ *
+ *      The routines in this file allow a variable-length bit value to
+ *      be output right-to-left (useful for literal values). For
+ *      left-to-right output (useful for code strings from the tree routines),
+ *      the bits must have been reversed first with bi_reverse().
+ *
+ *      For in-memory compression, the compressed bit stream goes directly
+ *      into the requested output buffer. The input data is read in blocks
+ *      by the mem_read() function. The buffer is limited to 64K on 16 bit
+ *      machines.
+ *
+ *  INTERFACE
+ *
+ *      void bi_init (FILE *zipfile)
+ *          Initialize the bit string routines.
+ *
+ *      void send_bits (int value, int length)
+ *          Write out a bit string, taking the source bits right to
+ *          left.
+ *
+ *      int bi_reverse (int value, int length)
+ *          Reverse the bits of a bit string, taking the source bits left to
+ *          right and emitting them right to left.
+ *
+ *      void bi_windup (void)
+ *          Write out any remaining bits in an incomplete byte.
+ *
+ *      void copy_block(char *buf, unsigned len, int header)
+ *          Copy a stored block to the zip file, storing first the length and
+ *          its one's complement if requested.
+ *
+ */
+
+#ifdef DEBUG
+#  include <stdio.h>
+#endif
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Local data used by the "bit string" routines.
+ */
+
+local file_t zfile; /* output gzip file */
+
+local unsigned short bi_buf;
+/* Output buffer. bits are inserted starting at the bottom (least significant
+ * bits).
+ */
+
+#define Buf_size (8 * 2*sizeof(char))
+/* Number of bits used within bi_buf. (bi_buf might be implemented on
+ * more than 16 bits on some systems.)
+ */
+
+local int bi_valid;
+/* Number of valid bits in bi_buf.  All bits above the last valid bit
+ * are always zero.
+ */
+
+int (*read_buf) OF((char *buf, unsigned size));
+/* Current input function. Set to mem_read for in-memory compression */
+
+#ifdef DEBUG
+  ulg bits_sent;   /* bit length of the compressed data */
+#endif
+
+/* ===========================================================================
+ * Initialize the bit string routines.
+ */
+void bi_init (zipfile)
+    file_t zipfile; /* output zip file, NO_FILE for in-memory compression */
+{
+    zfile  = zipfile;
+    bi_buf = 0;
+    bi_valid = 0;
+#ifdef DEBUG
+    bits_sent = 0L;
+#endif
+
+    /* Set the defaults for file compression. They are set by memcompress
+     * for in-memory compression.
+     */
+    if (zfile != NO_FILE) {
+	read_buf  = file_read;
+    }
+}
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+void send_bits(value, length)
+    int value;  /* value to send */
+    int length; /* number of bits */
+{
+#ifdef DEBUG
+    Tracev((stderr," l %2d v %4x ", length, value));
+    Assert(length > 0 && length <= 15, "invalid length");
+    bits_sent += (ulg)length;
+#endif
+    /* If not enough room in bi_buf, use (valid) bits from bi_buf and
+     * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
+     * unused bits in value.
+     */
+    if (bi_valid > (int)Buf_size - length) {
+        bi_buf |= (value << bi_valid);
+        put_short(bi_buf);
+        bi_buf = (ush)value >> (Buf_size - bi_valid);
+        bi_valid += length - Buf_size;
+    } else {
+        bi_buf |= value << bi_valid;
+        bi_valid += length;
+    }
+}
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+unsigned bi_reverse(code, len)
+    unsigned code; /* the value to invert */
+    int len;       /* its bit length */
+{
+    register unsigned res = 0;
+    do {
+        res |= code & 1;
+        code >>= 1, res <<= 1;
+    } while (--len > 0);
+    return res >> 1;
+}
+
+/* ===========================================================================
+ * Write out any remaining bits in an incomplete byte.
+ */
+void bi_windup()
+{
+    if (bi_valid > 8) {
+        put_short(bi_buf);
+    } else if (bi_valid > 0) {
+        put_byte(bi_buf);
+    }
+    bi_buf = 0;
+    bi_valid = 0;
+#ifdef DEBUG
+    bits_sent = (bits_sent+7) & ~7;
+#endif
+}
+
+/* ===========================================================================
+ * Copy a stored block to the zip file, storing first the length and its
+ * one's complement if requested.
+ */
+void copy_block(buf, len, header)
+    char     *buf;    /* the input data */
+    unsigned len;     /* its length */
+    int      header;  /* true if block header must be written */
+{
+    bi_windup();              /* align on byte boundary */
+
+    if (header) {
+        put_short((ush)len);   
+        put_short((ush)~len);
+#ifdef DEBUG
+        bits_sent += 2*16;
+#endif
+    }
+#ifdef DEBUG
+    bits_sent += (ulg)len<<3;
+#endif
+    while (len--) {
+#ifdef CRYPT
+        int t;
+	if (key) zencode(*buf, t);
+#endif
+	put_byte(*buf++);
+    }
+}
+/* deflate.c -- compress data using the deflation algorithm
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ *  PURPOSE
+ *
+ *      Identify new text as repetitions of old text within a fixed-
+ *      length sliding window trailing behind the new text.
+ *
+ *  DISCUSSION
+ *
+ *      The "deflation" process depends on being able to identify portions
+ *      of the input text which are identical to earlier input (within a
+ *      sliding window trailing behind the input currently being processed).
+ *
+ *      The most straightforward technique turns out to be the fastest for
+ *      most input files: try all possible matches and select the longest.
+ *      The key feature of this algorithm is that insertions into the string
+ *      dictionary are very simple and thus fast, and deletions are avoided
+ *      completely. Insertions are performed at each input character, whereas
+ *      string matches are performed only when the previous match ends. So it
+ *      is preferable to spend more time in matches to allow very fast string
+ *      insertions and avoid deletions. The matching algorithm for small
+ *      strings is inspired from that of Rabin & Karp. A brute force approach
+ *      is used to find longer strings when a small match has been found.
+ *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
+ *      (by Leonid Broukhis).
+ *         A previous version of this file used a more sophisticated algorithm
+ *      (by Fiala and Greene) which is guaranteed to run in linear amortized
+ *      time, but has a larger average cost, uses more memory and is patented.
+ *      However the F&G algorithm may be faster for some highly redundant
+ *      files if the parameter max_chain_length (described below) is too large.
+ *
+ *  ACKNOWLEDGEMENTS
+ *
+ *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
+ *      I found it in 'freeze' written by Leonid Broukhis.
+ *      Thanks to many info-zippers for bug reports and testing.
+ *
+ *  REFERENCES
+ *
+ *      APPNOTE.TXT documentation file in PKZIP 1.93a distribution.
+ *
+ *      A description of the Rabin and Karp algorithm is given in the book
+ *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
+ *
+ *      Fiala,E.R., and Greene,D.H.
+ *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
+ *
+ *  INTERFACE
+ *
+ *      void lm_init (int pack_level, ush *flags)
+ *          Initialize the "longest match" routines for a new file
+ *
+ *      ulg deflate (void)
+ *          Processes a new input file and return its compressed length. Sets
+ *          the compressed length, crc, deflate flags and internal file
+ *          attributes.
+ */
+
+#include <stdio.h>
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Configuration parameters
+ */
+
+/* Compile with MEDIUM_MEM to reduce the memory requirements or
+ * with SMALL_MEM to use as little memory as possible. Use BIG_MEM if the
+ * entire input file can be held in memory (not possible on 16 bit systems).
+ * Warning: defining these symbols affects HASH_BITS (see below) and thus
+ * affects the compression ratio. The compressed output
+ * is still correct, and might even be smaller in some cases.
+ */
+
+#ifdef SMALL_MEM
+#   define HASH_BITS  13  /* Number of bits used to hash strings */
+#endif
+#ifdef MEDIUM_MEM
+#   define HASH_BITS  14
+#endif
+#ifndef HASH_BITS
+#   define HASH_BITS  15
+   /* For portability to 16 bit machines, do not use values above 15. */
+#endif
+
+/* To save space (see unlzw.c), we overlay prev+head with tab_prefix and
+ * window with tab_suffix. Check that we can do this:
+ */
+#if (WSIZE<<1) > (1<<BITS)
+   error: cannot overlay window with tab_suffix and prev with tab_prefix0
+#endif
+#if HASH_BITS > BITS-1
+   error: cannot overlay head with tab_prefix1
+#endif
+
+#define HASH_SIZE (unsigned)(1<<HASH_BITS)
+#define HASH_MASK (HASH_SIZE-1)
+#define WMASK     (WSIZE-1)
+/* HASH_SIZE and WSIZE must be powers of two */
+
+#define NIL 0
+/* Tail of hash chains */
+
+#define FAST 4
+#define SLOW 2
+/* speed options for the general purpose bit flag */
+
+#ifndef TOO_FAR
+#  define TOO_FAR 4096
+#endif
+/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
+/* ===========================================================================
+ * Local data used by the "longest match" routines.
+ */
+
+typedef ush Pos;
+typedef unsigned IPos;
+/* A Pos is an index in the character window. We use short instead of int to
+ * save space in the various tables. IPos is used only for parameter passing.
+ */
+
+/* DECLARE(uch, window, 2L*WSIZE); */
+/* Sliding window. Input bytes are read into the second half of the window,
+ * and move to the first half later to keep a dictionary of at least WSIZE
+ * bytes. With this organization, matches are limited to a distance of
+ * WSIZE-MAX_MATCH bytes, but this ensures that IO is always
+ * performed with a length multiple of the block size. Also, it limits
+ * the window size to 64K, which is quite useful on MSDOS.
+ * To do: limit the window size to WSIZE+BSZ if SMALL_MEM (the code would
+ * be less efficient).
+ */
+
+/* DECLARE(Pos, prev, WSIZE); */
+/* Link to older string with same hash index. To limit the size of this
+ * array to 64K, this link is maintained only for the last 32K strings.
+ * An index in this array is thus a window index modulo 32K.
+ */
+
+/* DECLARE(Pos, head, 1<<HASH_BITS); */
+/* Heads of the hash chains or NIL. */
+
+ulg window_size = (ulg)2*WSIZE;
+/* window size, 2*WSIZE except for MMAP or BIG_MEM, where it is the
+ * input file length plus MIN_LOOKAHEAD.
+ */
+
+long block_start;
+/* window position at the beginning of the current output block. Gets
+ * negative when the window is moved backwards.
+ */
+
+local unsigned ins_h;  /* hash index of string to be inserted */
+
+#define H_SHIFT  ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
+/* Number of bits by which ins_h and del_h must be shifted at each
+ * input step. It must be such that after MIN_MATCH steps, the oldest
+ * byte no longer takes part in the hash key, that is:
+ *   H_SHIFT * MIN_MATCH >= HASH_BITS
+ */
+
+unsigned int near prev_length;
+/* Length of the best match at previous step. Matches not greater than this
+ * are discarded. This is used in the lazy match evaluation.
+ */
+
+      unsigned near strstart;      /* start of string to insert */
+      unsigned near match_start;   /* start of matching string */
+local int           eofile;        /* flag set at end of input file */
+local unsigned      lookahead;     /* number of valid bytes ahead in window */
+
+unsigned near max_chain_length;
+/* To speed up deflation, hash chains are never searched beyond this length.
+ * A higher limit improves compression ratio but degrades the speed.
+ */
+
+local unsigned int max_lazy_match;
+/* Attempt to find a better match only when the current match is strictly
+ * smaller than this value. This mechanism is used only for compression
+ * levels >= 4.
+ */
+#define max_insert_length  max_lazy_match
+/* Insert new strings in the hash table only if the match length
+ * is not greater than this length. This saves time but degrades compression.
+ * max_insert_length is used only for compression levels <= 3.
+ */
+
+unsigned near good_match;
+/* Use a faster search when the previous match is longer than this */
+
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+
+typedef struct config {
+   ush good_length; /* reduce lazy search above this match length */
+   ush max_lazy;    /* do not perform lazy search above this match length */
+   ush nice_length; /* quit search above this match length */
+   ush max_chain;
+} config;
+
+#ifdef  FULL_SEARCH
+# define nice_match MAX_MATCH
+#else
+  int near nice_match; /* Stop searching when current match exceeds this */
+#endif
+
+local config configuration_table = 
+/* 9 */ {32, 258, 258, 4096}; /* maximum compression */
+
+/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
+ * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
+ * meaning.
+ */
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
+/* ===========================================================================
+ *  Prototypes for local functions.
+ */
+local void fill_window   OF((void));
+
+      int  longest_match OF((IPos cur_match));
+#ifdef ASMV
+      void match_init OF((void)); /* asm code initialization */
+#endif
+
+#ifdef DEBUG
+local  void check_match OF((IPos start, IPos match, int length));
+#endif
+
+/* ===========================================================================
+ * Update a hash value with the given input byte
+ * IN  assertion: all calls to to UPDATE_HASH are made with consecutive
+ *    input characters, so that a running hash key can be computed from the
+ *    previous key instead of complete recalculation each time.
+ */
+#define UPDATE_HASH(h,c) (h = (((h)<<H_SHIFT) ^ (c)) & HASH_MASK)
+
+/* ===========================================================================
+ * Insert string s in the dictionary and set match_head to the previous head
+ * of the hash chain (the most recent string with same hash key). Return
+ * the previous length of the hash chain.
+ * IN  assertion: all calls to to INSERT_STRING are made with consecutive
+ *    input characters and the first MIN_MATCH bytes of s are valid
+ *    (except for the last MIN_MATCH-1 bytes of the input file).
+ */
+#define INSERT_STRING(s, match_head) \
+   (UPDATE_HASH(ins_h, window[(s) + MIN_MATCH-1]), \
+    prev[(s) & WMASK] = match_head = head[ins_h], \
+    head[ins_h] = (s))
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new file
+ */
+void lm_init (flags)
+    ush *flags;     /* general purpose bit flag */
+{
+    register unsigned j;
+
+    /* Initialize the hash table. */
+#if defined(MAXSEG_64K) && HASH_BITS == 15
+    for (j = 0;  j < HASH_SIZE; j++) head[j] = NIL;
+#else
+    memzero((char*)head, HASH_SIZE*sizeof(*head));
+#endif
+    /* prev will be initialized on the fly */
+
+    /* Set the default configuration parameters:
+     */
+    max_lazy_match   = configuration_table.max_lazy;
+    good_match       = configuration_table.good_length;
+#ifndef FULL_SEARCH
+    nice_match       = configuration_table.nice_length;
+#endif
+    max_chain_length = configuration_table.max_chain;
+    *flags |= SLOW;
+    /* ??? reduce max_chain_length for binary files */
+
+    strstart = 0;
+    block_start = 0L;
+#ifdef ASMV
+    match_init(); /* initialize the asm code */
+#endif
+
+    lookahead = read_buf((char*)window,
+			 sizeof(int) <= 2 ? (unsigned)WSIZE : 2*WSIZE);
+
+    if (lookahead == 0 || lookahead == (unsigned)EOF) {
+       eofile = 1, lookahead = 0;
+       return;
+    }
+    eofile = 0;
+    /* Make sure that we always have enough lookahead. This is important
+     * if input comes from a device such as a tty.
+     */
+    while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+
+    ins_h = 0;
+    for (j=0; j<MIN_MATCH-1; j++) UPDATE_HASH(ins_h, window[j]);
+    /* If lookahead < MIN_MATCH, ins_h is garbage, but this is
+     * not important since only literal bytes will be emitted.
+     */
+}
+
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+#ifndef ASMV
+/* For MSDOS, OS/2 and 386 Unix, an optimized version is in match.asm or
+ * match.s. The code is functionally equivalent, so you can use the C version
+ * if desired.
+ */
+int longest_match(cur_match)
+    IPos cur_match;                             /* current match */
+{
+    unsigned chain_length = max_chain_length;   /* max hash chain length */
+    register uch *scan = window + strstart;     /* current string */
+    register uch *match;                        /* matched string */
+    register int len;                           /* length of current match */
+    int best_len = prev_length;                 /* best match length so far */
+    IPos limit = strstart > (IPos)MAX_DIST ? strstart - (IPos)MAX_DIST : NIL;
+    /* Stop when cur_match becomes <= limit. To simplify the code,
+     * we prevent matches with the string of window index 0.
+     */
+
+/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+ * It is easy to get rid of this optimization if necessary.
+ */
+#if HASH_BITS < 8 || MAX_MATCH != 258
+   error: Code too clever
+#endif
+
+#ifdef UNALIGNED_OK
+    /* Compare two bytes at a time. Note: this is not always beneficial.
+     * Try with and without -DUNALIGNED_OK to check.
+     */
+    register uch *strend = window + strstart + MAX_MATCH - 1;
+    register ush scan_start = *(ush*)scan;
+    register ush scan_end   = *(ush*)(scan+best_len-1);
+#else
+    register uch *strend = window + strstart + MAX_MATCH;
+    register uch scan_end1  = scan[best_len-1];
+    register uch scan_end   = scan[best_len];
+#endif
+
+    /* Do not waste too much time if we already have a good match: */
+    if (prev_length >= good_match) {
+        chain_length >>= 2;
+    }
+    Assert(strstart <= window_size-MIN_LOOKAHEAD, "insufficient lookahead");
+
+    do {
+        Assert(cur_match < strstart, "no future");
+        match = window + cur_match;
+
+        /* Skip to next match if the match length cannot increase
+         * or if the match length is less than 2:
+         */
+#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
+        /* This code assumes sizeof(unsigned short) == 2. Do not use
+         * UNALIGNED_OK if your compiler uses a different size.
+         */
+        if (*(ush*)(match+best_len-1) != scan_end ||
+            *(ush*)match != scan_start) continue;
+
+        /* It is not necessary to compare scan[2] and match[2] since they are
+         * always equal when the other bytes match, given that the hash keys
+         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
+         * strstart+3, +5, ... up to strstart+257. We check for insufficient
+         * lookahead only every 4th comparison; the 128th check will be made
+         * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
+         * necessary to put more guard bytes at the end of the window, or
+         * to check more often for insufficient lookahead.
+         */
+        scan++, match++;
+        do {
+        } while (*(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+                 scan < strend);
+        /* The funny "do {}" generates better code on most compilers */
+
+        /* Here, scan <= window+strstart+257 */
+        Assert(scan <= window+(unsigned)(window_size-1), "wild scan");
+        if (*scan == *match) scan++;
+
+        len = (MAX_MATCH - 1) - (int)(strend-scan);
+        scan = strend - (MAX_MATCH-1);
+
+#else /* UNALIGNED_OK */
+
+        if (match[best_len]   != scan_end  ||
+            match[best_len-1] != scan_end1 ||
+            *match            != *scan     ||
+            *++match          != scan[1])      continue;
+
+        /* The check at best_len-1 can be removed because it will be made
+         * again later. (This heuristic is not always a win.)
+         * It is not necessary to compare scan[2] and match[2] since they
+         * are always equal when the other bytes match, given that
+         * the hash keys are equal and that HASH_BITS >= 8.
+         */
+        scan += 2, match++;
+
+        /* We check for insufficient lookahead only every 8th comparison;
+         * the 256th check will be made at strstart+258.
+         */
+        do {
+        } while (*++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 scan < strend);
+
+        len = MAX_MATCH - (int)(strend - scan);
+        scan = strend - MAX_MATCH;
+
+#endif /* UNALIGNED_OK */
+
+        if (len > best_len) {
+            match_start = cur_match;
+            best_len = len;
+            if (len >= nice_match) break;
+#ifdef UNALIGNED_OK
+            scan_end = *(ush*)(scan+best_len-1);
+#else
+            scan_end1  = scan[best_len-1];
+            scan_end   = scan[best_len];
+#endif
+        }
+    } while ((cur_match = prev[cur_match & WMASK]) > limit
+	     && --chain_length != 0);
+
+    return best_len;
+}
+#endif /* ASMV */
+
+#ifdef DEBUG
+/* ===========================================================================
+ * Check that the match at match_start is indeed a match.
+ */
+local void check_match(start, match, length)
+    IPos start, match;
+    int length;
+{
+    /* check that the match is indeed a match */
+    if (memcmp((char*)window + match,
+                (char*)window + start, length) != EQUAL) {
+        fprintf(stderr,
+            " start %d, match %d, length %d\n",
+            start, match, length);
+        error("invalid match");
+    }
+    if (verbose > 1) {
+        fprintf(stderr,"\\[%d,%d]", start-match, length);
+        do { putc(window[start++], stderr); } while (--length != 0);
+    }
+}
+#else
+#  define check_match(start, match, length)
+#endif
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead, and sets eofile if end of input file.
+ * IN assertion: lookahead < MIN_LOOKAHEAD && strstart + lookahead > 0
+ * OUT assertions: at least one byte has been read, or eofile is set;
+ *    file reads are performed for at least two bytes (required for the
+ *    translate_eol option).
+ */
+local void fill_window()
+{
+    register unsigned n, m;
+    unsigned more = (unsigned)(window_size - (ulg)lookahead - (ulg)strstart);
+    /* Amount of free space at the end of the window. */
+
+    /* If the window is almost full and there is insufficient lookahead,
+     * move the upper half to the lower one to make room in the upper half.
+     */
+    if (more == (unsigned)EOF) {
+        /* Very unlikely, but possible on 16 bit machine if strstart == 0
+         * and lookahead == 1 (input done one byte at time)
+         */
+        more--;
+    } else if (strstart >= WSIZE+MAX_DIST) {
+        /* By the IN assertion, the window is not empty so we can't confuse
+         * more == 0 with more == 64K on a 16 bit machine.
+         */
+        Assert(window_size == (ulg)2*WSIZE, "no sliding with BIG_MEM");
+
+        memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
+        match_start -= WSIZE;
+        strstart    -= WSIZE; /* we now have strstart >= MAX_DIST: */
+
+        block_start -= (long) WSIZE;
+
+        for (n = 0; n < HASH_SIZE; n++) {
+            m = head[n];
+            head[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+        }
+        for (n = 0; n < WSIZE; n++) {
+            m = prev[n];
+            prev[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+            /* If n is not on any hash chain, prev[n] is garbage but
+             * its value will never be used.
+             */
+        }
+        more += WSIZE;
+    }
+    /* At this point, more >= 2 */
+    if (!eofile) {
+        n = read_buf((char*)window+strstart+lookahead, more);
+        if (n == 0 || n == (unsigned)EOF) {
+            eofile = 1;
+        } else {
+            lookahead += n;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+#define FLUSH_BLOCK(eof) \
+   flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
+                (char*)NULL, (long)strstart - block_start, (eof))
+
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+ulg deflate()
+{
+    IPos hash_head;          /* head of hash chain */
+    IPos prev_match;         /* previous match */
+    int flush;               /* set if current block must be flushed */
+    int match_available = 0; /* set if previous match exists */
+    register unsigned match_length = MIN_MATCH-1; /* length of best match */
+#ifdef DEBUG
+    extern long isize;        /* byte length of input file, for debug only */
+#endif
+
+    /* Process the input block. */
+    while (lookahead != 0) {
+        /* Insert the string window[strstart .. strstart+2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        INSERT_STRING(strstart, hash_head);
+
+        /* Find the longest match, discarding those <= prev_length.
+         */
+        prev_length = match_length, prev_match = match_start;
+        match_length = MIN_MATCH-1;
+
+        if (hash_head != NIL && prev_length < max_lazy_match &&
+            strstart - hash_head <= MAX_DIST) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            match_length = longest_match (hash_head);
+            /* longest_match() sets match_start */
+            if (match_length > lookahead) match_length = lookahead;
+
+            /* Ignore a length 3 match if it is too distant: */
+            if (match_length == MIN_MATCH && strstart-match_start > TOO_FAR){
+                /* If prev_match is also MIN_MATCH, match_start is garbage
+                 * but we will ignore the current match anyway.
+                 */
+                match_length--;
+            }
+        }
+        /* If there was a match at the previous step and the current
+         * match is not better, output the previous match:
+         */
+        if (prev_length >= MIN_MATCH && match_length <= prev_length) {
+
+            check_match(strstart-1, prev_match, prev_length);
+
+            flush = ct_tally(strstart-1-prev_match, prev_length - MIN_MATCH);
+
+            /* Insert in hash table all strings up to the end of the match.
+             * strstart-1 and strstart are already inserted.
+             */
+            lookahead -= prev_length-1;
+            prev_length -= 2;
+            do {
+                strstart++;
+                INSERT_STRING(strstart, hash_head);
+                /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+                 * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
+                 * these bytes are garbage, but it does not matter since the
+                 * next lookahead bytes will always be emitted as literals.
+                 */
+            } while (--prev_length != 0);
+            match_available = 0;
+            match_length = MIN_MATCH-1;
+            strstart++;
+            if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
+        } else if (match_available) {
+            /* If there was no match at the previous position, output a
+             * single literal. If there was a match but the current match
+             * is longer, truncate the previous match to a single literal.
+             */
+            Tracevv((stderr,"%c",window[strstart-1]));
+            if (ct_tally (0, window[strstart-1])) {
+                FLUSH_BLOCK(0), block_start = strstart;
+            }
+            strstart++;
+            lookahead--;
+        } else {
+            /* There is no previous match to compare with, wait for
+             * the next step to decide.
+             */
+            match_available = 1;
+            strstart++;
+            lookahead--;
+        }
+        Assert (strstart <= isize && lookahead <= isize, "a bit too far");
+
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+    }
+    if (match_available) ct_tally (0, window[strstart-1]);
+
+    return FLUSH_BLOCK(1); /* eof */
+}
+/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * The unzip code was written and put in the public domain by Mark Adler.
+ * Portions of the lzw code are derived from the public domain 'compress'
+ * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
+ * Ken Turkowski, Dave Mack and Peter Jannesen.
+ *
+ * See the license_msg below and the file COPYING for the software license.
+ * See the file algorithm.doc for the compression algorithms and file formats.
+ */
+
+/* Compress files with zip algorithm and 'compress' interface.
+ * See usage() and help() functions below for all options.
+ * Outputs:
+ *        file.gz:   compressed file with same mode, owner, and utimes
+ *     or stdout with -c option or if stdin used as input.
+ * If the output file name had to be truncated, the original name is kept
+ * in the compressed file.
+ * On MSDOS, file.tmp -> file.tmz. On VMS, file.tmp -> file.tmp-gz.
+ *
+ * Using gz on MSDOS would create too many file name conflicts. For
+ * example, foo.txt -> foo.tgz (.tgz must be reserved as shorthand for
+ * tar.gz). Similarly, foo.dir and foo.doc would both be mapped to foo.dgz.
+ * I also considered 12345678.txt -> 12345txt.gz but this truncates the name
+ * too heavily. There is no ideal solution given the MSDOS 8+3 limitation. 
+ *
+ * For the meaning of all compilation flags, see comments in Makefile.in.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+		/* configuration */
+
+#ifdef NO_TIME_H
+#  include <sys/time.h>
+#else
+#  include <time.h>
+#endif
+
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#else
+   extern int errno;
+#endif
+
+#if defined(DIRENT)
+#  include <dirent.h>
+   typedef struct dirent dir_type;
+#  define NLENGTH(dirent) ((int)strlen((dirent)->d_name))
+#  define DIR_OPT "DIRENT"
+#else
+#  define NLENGTH(dirent) ((dirent)->d_namlen)
+#  ifdef SYSDIR
+#    include <sys/dir.h>
+     typedef struct direct dir_type;
+#    define DIR_OPT "SYSDIR"
+#  else
+#    ifdef SYSNDIR
+#      include <sys/ndir.h>
+       typedef struct direct dir_type;
+#      define DIR_OPT "SYSNDIR"
+#    else
+#      ifdef NDIR
+#        include <ndir.h>
+         typedef struct direct dir_type;
+#        define DIR_OPT "NDIR"
+#      else
+#        define NO_DIR
+#        define DIR_OPT "NO_DIR"
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifndef NO_UTIME
+#  ifndef NO_UTIME_H
+#    include <utime.h>
+#    define TIME_OPT "UTIME"
+#  else
+#    ifdef HAVE_SYS_UTIME_H
+#      include <sys/utime.h>
+#      define TIME_OPT "SYS_UTIME"
+#    else
+       struct utimbuf {
+         time_t actime;
+         time_t modtime;
+       };
+#      define TIME_OPT ""
+#    endif
+#  endif
+#else
+#  define TIME_OPT "NO_UTIME"
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+#  define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+#  define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
+typedef RETSIGTYPE (*sig_type) OF((int));
+
+#ifndef	O_BINARY
+#  define  O_BINARY  0  /* creation mode for open() */
+#endif
+
+#ifndef O_CREAT
+   /* Pure BSD system? */
+#  include <sys/file.h>
+#  ifndef O_CREAT
+#    define O_CREAT FCREAT
+#  endif
+#  ifndef O_EXCL
+#    define O_EXCL FEXCL
+#  endif
+#endif
+
+#ifndef S_IRUSR
+#  define S_IRUSR 0400
+#endif
+#ifndef S_IWUSR
+#  define S_IWUSR 0200
+#endif
+#define RW_USER (S_IRUSR | S_IWUSR)  /* creation mode for open() */
+
+#ifndef MAX_PATH_LEN
+#  define MAX_PATH_LEN   1024 /* max pathname length */
+#endif
+
+#ifndef SEEK_END
+#  define SEEK_END 2
+#endif
+
+#ifdef NO_OFF_T
+  typedef long off_t;
+  off_t lseek OF((int fd, off_t offset, int whence));
+#endif
+
+/* Separator for file name parts (see shorten_name()) */
+#ifdef NO_MULTIPLE_DOTS
+#  define PART_SEP "-"
+#else
+#  define PART_SEP "."
+#endif
+
+		/* global buffers */
+
+DECLARE(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+DECLARE(ush, d_buf,  DIST_BUFSIZE);
+DECLARE(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    DECLARE(ush, tab_prefix, 1L<<BITS);
+#else
+    DECLARE(ush, tab_prefix0, 1L<<(BITS-1));
+    DECLARE(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+		/* local variables */
+
+int ascii = 0;        /* convert end-of-lines to local OS conventions */
+int to_stdout = 0;    /* output to stdout (-c) */
+int decompress = 0;   /* decompress (-d) */
+int no_name = -1;     /* don't save or restore the original file name */
+int no_time = -1;     /* don't save or restore the original file time */
+int foreground;       /* set if program run in foreground */
+char *progname;       /* program name */
+static int method = DEFLATED;/* compression method */
+static int exit_code = OK;   /* program exit code */
+int save_orig_name;   /* set if original name must be saved */
+int last_member;      /* set for .zip and .Z files */
+int part_nb;          /* number of parts in .gz file */
+long time_stamp;      /* original time stamp (modification time) */
+long ifile_size;      /* input file size, -1 for devices (debug only) */
+char *env;            /* contents of GZIP env variable */
+char **args = NULL;   /* argv pointer if GZIP env variable defined */
+char z_suffix[MAX_SUFFIX+1]; /* default suffix (can be set with --suffix) */
+int  z_len;           /* strlen(z_suffix) */
+
+long bytes_in;             /* number of input bytes */
+long bytes_out;            /* number of output bytes */
+char ifname[MAX_PATH_LEN]; /* input file name */
+char ofname[MAX_PATH_LEN]; /* output file name */
+int  remove_ofname = 0;	   /* remove output file on error */
+struct stat istat;         /* status for input file */
+int  ifd;                  /* input file descriptor */
+int  ofd;                  /* output file descriptor */
+unsigned insize;           /* valid bytes in inbuf */
+unsigned inptr;            /* index of next byte to be processed in inbuf */
+unsigned outcnt;           /* bytes in output buffer */
+
+/* local functions */
+
+local void treat_stdin  OF((void));
+static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
+
+#define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
+
+/* ======================================================================== */
+// int main (argc, argv)
+//    int argc;
+//    char **argv;
+int gzip_main(struct FileInfo * i, int argc, char * * argv)
+{
+    foreground = signal(SIGINT, SIG_IGN) != SIG_IGN;
+    if (foreground) {
+	(void) signal (SIGINT, (sig_type)abort_gzip);
+    }
+#ifdef SIGTERM
+    if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGTERM, (sig_type)abort_gzip);
+    }
+#endif
+#ifdef SIGHUP
+    if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGHUP,  (sig_type)abort_gzip);
+    }
+#endif
+
+    strncpy(z_suffix, Z_SUFFIX, sizeof(z_suffix)-1);
+    z_len = strlen(z_suffix);
+
+    to_stdout = 1;
+
+    /* Allocate all global buffers (for DYN_ALLOC option) */
+    ALLOC(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+    ALLOC(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+    ALLOC(ush, d_buf,  DIST_BUFSIZE);
+    ALLOC(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    ALLOC(ush, tab_prefix, 1L<<BITS);
+#else
+    ALLOC(ush, tab_prefix0, 1L<<(BITS-1));
+    ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+    /* And get to work */
+	treat_stdin();
+    do_exit(exit_code);
+    return exit_code; /* just to avoid lint warning */
+}
+
+/* ========================================================================
+ * Compress or decompress stdin
+ */
+local void treat_stdin()
+{
+	SET_BINARY_MODE(fileno(stdout));
+    strcpy(ifname, "stdin");
+    strcpy(ofname, "stdout");
+
+    /* Get the time stamp on the input file. */
+    time_stamp = 0; /* time unknown by default */
+
+    ifile_size = -1L; /* convention for unknown size */
+
+    clear_bufs(); /* clear input and output buffers */
+    to_stdout = 1;
+    part_nb = 0;
+
+    /* Actually do the compression/decompression. Loop over zipped members.
+     */
+	if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
+}
+
+/* ========================================================================
+ * Free all dynamically allocated variables and exit with the given code.
+ */
+local void do_exit(int exitcode)
+{
+    static int in_exit = 0;
+
+    if (in_exit) exit(exitcode);
+    in_exit = 1;
+    if (env != NULL)  free(env),  env  = NULL;
+    if (args != NULL) free((char*)args), args = NULL;
+    FREE(inbuf);
+    FREE(outbuf);
+    FREE(d_buf);
+    FREE(window);
+#ifndef MAXSEG_64K
+    FREE(tab_prefix);
+#else
+    FREE(tab_prefix0);
+    FREE(tab_prefix1);
+#endif
+    exit(exitcode);
+}
+/* trees.c -- output deflated data using Huffman coding
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ *  PURPOSE
+ *
+ *      Encode various sets of source values using variable-length
+ *      binary code trees.
+ *
+ *  DISCUSSION
+ *
+ *      The PKZIP "deflation" process uses several Huffman trees. The more
+ *      common source values are represented by shorter bit sequences.
+ *
+ *      Each code tree is stored in the ZIP file in a compressed form
+ *      which is itself a Huffman encoding of the lengths of
+ *      all the code strings (in ascending order by source values).
+ *      The actual code strings are reconstructed from the lengths in
+ *      the UNZIP process, as described in the "application note"
+ *      (APPNOTE.TXT) distributed as part of PKWARE's PKZIP program.
+ *
+ *  REFERENCES
+ *
+ *      Lynch, Thomas J.
+ *          Data Compression:  Techniques and Applications, pp. 53-55.
+ *          Lifetime Learning Publications, 1985.  ISBN 0-534-03418-7.
+ *
+ *      Storer, James A.
+ *          Data Compression:  Methods and Theory, pp. 49-50.
+ *          Computer Science Press, 1988.  ISBN 0-7167-8156-5.
+ *
+ *      Sedgewick, R.
+ *          Algorithms, p290.
+ *          Addison-Wesley, 1983. ISBN 0-201-06672-6.
+ *
+ *  INTERFACE
+ *
+ *      void ct_init (ush *attr, int *methodp)
+ *          Allocate the match buffer, initialize the various tables and save
+ *          the location of the internal file attribute (ascii/binary) and
+ *          method (DEFLATE/STORE)
+ *
+ *      void ct_tally (int dist, int lc);
+ *          Save the match info and tally the frequency counts.
+ *
+ *      long flush_block (char *buf, ulg stored_len, int eof)
+ *          Determine the best encoding for the current block: dynamic trees,
+ *          static trees or store, and output the encoded block to the zip
+ *          file. Returns the total compressed length for the file so far.
+ *
+ */
+
+#include <ctype.h>
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* ===========================================================================
+ * Constants
+ */
+
+#define MAX_BITS 15
+/* All codes must not exceed MAX_BITS bits */
+
+#define MAX_BL_BITS 7
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+#define LENGTH_CODES 29
+/* number of length codes, not counting the special END_BLOCK code */
+
+#define LITERALS  256
+/* number of literal bytes 0..255 */
+
+#define END_BLOCK 256
+/* end of block literal code */
+
+#define L_CODES (LITERALS+1+LENGTH_CODES)
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+#define D_CODES   30
+/* number of distance codes */
+
+#define BL_CODES  19
+/* number of codes used to transfer the bit lengths */
+
+
+local int near extra_lbits[LENGTH_CODES] /* extra bits for each length code */
+   = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+
+local int near extra_dbits[D_CODES] /* extra bits for each distance code */
+   = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
+
+local int near extra_blbits[BL_CODES]/* extra bits for each bit length code */
+   = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES    2
+/* The three kinds of block type */
+
+#ifndef LIT_BUFSIZE
+#  ifdef SMALL_MEM
+#    define LIT_BUFSIZE  0x2000
+#  else
+#  ifdef MEDIUM_MEM
+#    define LIT_BUFSIZE  0x4000
+#  else
+#    define LIT_BUFSIZE  0x8000
+#  endif
+#  endif
+#endif
+#ifndef DIST_BUFSIZE
+#  define DIST_BUFSIZE  LIT_BUFSIZE
+#endif
+/* Sizes of match buffers for literals/lengths and distances.  There are
+ * 4 reasons for limiting LIT_BUFSIZE to 64K:
+ *   - frequencies can be kept in 16 bit counters
+ *   - if compression is not successful for the first block, all input data is
+ *     still in the window so we can still emit a stored block even when input
+ *     comes from standard input.  (This can also be done for all blocks if
+ *     LIT_BUFSIZE is not greater than 32K.)
+ *   - if compression is not successful for a file smaller than 64K, we can
+ *     even emit a stored file instead of a stored block (saving 5 bytes).
+ *   - creating new Huffman trees less frequently may not provide fast
+ *     adaptation to changes in the input data statistics. (Take for
+ *     example a binary file with poorly compressible code followed by
+ *     a highly compressible string table.) Smaller buffer sizes give
+ *     fast adaptation but have of course the overhead of transmitting trees
+ *     more frequently.
+ *   - I can't count above 4
+ * The current code is general and allows DIST_BUFSIZE < LIT_BUFSIZE (to save
+ * memory at the expense of compression). Some optimizations would be possible
+ * if we rely on DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+#if LIT_BUFSIZE > INBUFSIZ
+    error cannot overlay l_buf and inbuf
+#endif
+
+#define REP_3_6      16
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+#define REPZ_3_10    17
+/* repeat a zero length 3-10 times  (3 bits of repeat count) */
+
+#define REPZ_11_138  18
+/* repeat a zero length 11-138 times  (7 bits of repeat count) */
+
+/* ===========================================================================
+ * Local data
+ */
+
+/* Data structure describing a single value and its code string. */
+typedef struct ct_data {
+    union {
+        ush  freq;       /* frequency count */
+        ush  code;       /* bit string */
+    } fc;
+    union {
+        ush  dad;        /* father node in Huffman tree */
+        ush  len;        /* length of bit string */
+    } dl;
+} ct_data;
+
+#define Freq fc.freq
+#define Code fc.code
+#define Dad  dl.dad
+#define Len  dl.len
+
+#define HEAP_SIZE (2*L_CODES+1)
+/* maximum heap size */
+
+local ct_data near dyn_ltree[HEAP_SIZE];   /* literal and length tree */
+local ct_data near dyn_dtree[2*D_CODES+1]; /* distance tree */
+
+local ct_data near static_ltree[L_CODES+2];
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see ct_init
+ * below).
+ */
+
+local ct_data near static_dtree[D_CODES];
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+local ct_data near bl_tree[2*BL_CODES+1];
+/* Huffman tree for the bit lengths */
+
+typedef struct tree_desc {
+    ct_data near *dyn_tree;      /* the dynamic tree */
+    ct_data near *static_tree;   /* corresponding static tree or NULL */
+    int     near *extra_bits;    /* extra bits for each code or NULL */
+    int     extra_base;          /* base index for extra_bits */
+    int     elems;               /* max number of elements in the tree */
+    int     max_length;          /* max bit length for the codes */
+    int     max_code;            /* largest code with non zero frequency */
+} tree_desc;
+
+local tree_desc near l_desc =
+{dyn_ltree, static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS, 0};
+
+local tree_desc near d_desc =
+{dyn_dtree, static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS, 0};
+
+local tree_desc near bl_desc =
+{bl_tree, (ct_data near *)0, extra_blbits, 0,      BL_CODES, MAX_BL_BITS, 0};
+
+
+local ush near bl_count[MAX_BITS+1];
+/* number of codes at each bit length for an optimal tree */
+
+local uch near bl_order[BL_CODES]
+   = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+local int near heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
+local int heap_len;               /* number of elements in the heap */
+local int heap_max;               /* element of largest frequency */
+/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+ * The same heap array is used to build all trees.
+ */
+
+local uch near depth[2*L_CODES+1];
+/* Depth of each subtree used as tie breaker for trees of equal frequency */
+
+local uch length_code[MAX_MATCH-MIN_MATCH+1];
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+local uch dist_code[512];
+/* distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+local int near base_length[LENGTH_CODES];
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+local int near base_dist[D_CODES];
+/* First normalized distance for each code (0 = distance of 1) */
+
+#define l_buf inbuf
+/* DECLARE(uch, l_buf, LIT_BUFSIZE);  buffer for literals or lengths */
+
+/* DECLARE(ush, d_buf, DIST_BUFSIZE); buffer for distances */
+
+local uch near flag_buf[(LIT_BUFSIZE/8)];
+/* flag_buf is a bit array distinguishing literals from lengths in
+ * l_buf, thus indicating the presence or absence of a distance.
+ */
+
+local unsigned last_lit;    /* running index in l_buf */
+local unsigned last_dist;   /* running index in d_buf */
+local unsigned last_flags;  /* running index in flag_buf */
+local uch flags;            /* current flags not yet saved in flag_buf */
+local uch flag_bit;         /* current bit used in flags */
+/* bits are filled in flags starting at bit 0 (least significant).
+ * Note: these flags are overkill in the current code since we don't
+ * take advantage of DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+
+local ulg opt_len;        /* bit length of current block with optimal trees */
+local ulg static_len;     /* bit length of current block with static trees */
+
+local ulg compressed_len; /* total bit length of compressed file */
+
+local ulg input_len;      /* total byte length of input file */
+/* input_len is for debugging only since we can get it by other means. */
+
+ush *file_type;        /* pointer to UNKNOWN, BINARY or ASCII */
+int *file_method;      /* pointer to DEFLATE or STORE */
+
+#ifdef DEBUG
+extern ulg bits_sent;  /* bit length of the compressed data */
+extern long isize;     /* byte length of input file */
+#endif
+
+extern long block_start;       /* window offset of current block */
+extern unsigned near strstart; /* window offset of current string */
+
+/* ===========================================================================
+ * Local (static) routines in this file.
+ */
+
+local void init_block     OF((void));
+local void pqdownheap     OF((ct_data near *tree, int k));
+local void gen_bitlen     OF((tree_desc near *desc));
+local void gen_codes      OF((ct_data near *tree, int max_code));
+local void build_tree     OF((tree_desc near *desc));
+local void scan_tree      OF((ct_data near *tree, int max_code));
+local void send_tree      OF((ct_data near *tree, int max_code));
+local int  build_bl_tree  OF((void));
+local void send_all_trees OF((int lcodes, int dcodes, int blcodes));
+local void compress_block OF((ct_data near *ltree, ct_data near *dtree));
+local void set_file_type  OF((void));
+
+
+#ifndef DEBUG
+#  define send_code(c, tree) send_bits(tree[c].Code, tree[c].Len)
+   /* Send a code of the given tree. c and tree must not have side effects */
+
+#else /* DEBUG */
+#  define send_code(c, tree) \
+     { if (verbose>1) fprintf(stderr,"\ncd %3d ",(c)); \
+       send_bits(tree[c].Code, tree[c].Len); }
+#endif
+
+#define d_code(dist) \
+   ((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
+/* Mapping from a distance to a distance code. dist is the distance - 1 and
+ * must not have side effects. dist_code[256] and dist_code[257] are never
+ * used.
+ */
+
+#define MAX(a,b) (a >= b ? a : b)
+/* the arguments must not have side effects */
+
+/* ===========================================================================
+ * Allocate the match buffer, initialize the various tables and save the
+ * location of the internal file attribute (ascii/binary) and method
+ * (DEFLATE/STORE).
+ */
+void ct_init(attr, methodp)
+    ush  *attr;   /* pointer to internal file attribute */
+    int  *methodp; /* pointer to compression method */
+{
+    int n;        /* iterates over tree elements */
+    int bits;     /* bit counter */
+    int length;   /* length value */
+    int code;     /* code value */
+    int dist;     /* distance index */
+
+    file_type = attr;
+    file_method = methodp;
+    compressed_len = input_len = 0L;
+        
+    if (static_dtree[0].Len != 0) return; /* ct_init already called */
+
+    /* Initialize the mapping length (0..255) -> length code (0..28) */
+    length = 0;
+    for (code = 0; code < LENGTH_CODES-1; code++) {
+        base_length[code] = length;
+        for (n = 0; n < (1<<extra_lbits[code]); n++) {
+            length_code[length++] = (uch)code;
+        }
+    }
+    Assert (length == 256, "ct_init: length != 256");
+    /* Note that the length 255 (match length 258) can be represented
+     * in two different ways: code 284 + 5 bits or code 285, so we
+     * overwrite length_code[255] to use the best encoding:
+     */
+    length_code[length-1] = (uch)code;
+
+    /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+    dist = 0;
+    for (code = 0 ; code < 16; code++) {
+        base_dist[code] = dist;
+        for (n = 0; n < (1<<extra_dbits[code]); n++) {
+            dist_code[dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "ct_init: dist != 256");
+    dist >>= 7; /* from now on, all distances are divided by 128 */
+    for ( ; code < D_CODES; code++) {
+        base_dist[code] = dist << 7;
+        for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
+            dist_code[256 + dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "ct_init: 256+dist != 512");
+
+    /* Construct the codes of the static literal tree */
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+    n = 0;
+    while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
+    while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
+    while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
+    while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
+    /* Codes 286 and 287 do not exist, but we must include them in the
+     * tree construction to get a canonical Huffman tree (longest code
+     * all ones)
+     */
+    gen_codes((ct_data near *)static_ltree, L_CODES+1);
+
+    /* The static distance tree is trivial: */
+    for (n = 0; n < D_CODES; n++) {
+        static_dtree[n].Len = 5;
+        static_dtree[n].Code = bi_reverse(n, 5);
+    }
+
+    /* Initialize the first block of the first file: */
+    init_block();
+}
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+local void init_block()
+{
+    int n; /* iterates over tree elements */
+
+    /* Initialize the trees. */
+    for (n = 0; n < L_CODES;  n++) dyn_ltree[n].Freq = 0;
+    for (n = 0; n < D_CODES;  n++) dyn_dtree[n].Freq = 0;
+    for (n = 0; n < BL_CODES; n++) bl_tree[n].Freq = 0;
+
+    dyn_ltree[END_BLOCK].Freq = 1;
+    opt_len = static_len = 0L;
+    last_lit = last_dist = last_flags = 0;
+    flags = 0; flag_bit = 1;
+}
+
+#define SMALLEST 1
+/* Index within the heap array of least frequent node in the Huffman tree */
+
+
+/* ===========================================================================
+ * Remove the smallest element from the heap and recreate the heap with
+ * one less element. Updates heap and heap_len.
+ */
+#define pqremove(tree, top) \
+{\
+    top = heap[SMALLEST]; \
+    heap[SMALLEST] = heap[heap_len--]; \
+    pqdownheap(tree, SMALLEST); \
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+#define smaller(tree, n, m) \
+   (tree[n].Freq < tree[m].Freq || \
+   (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+local void pqdownheap(tree, k)
+    ct_data near *tree;  /* the tree to restore */
+    int k;               /* node to move down */
+{
+    int v = heap[k];
+    int j = k << 1;  /* left son of k */
+    while (j <= heap_len) {
+        /* Set j to the smallest of the two sons: */
+        if (j < heap_len && smaller(tree, heap[j+1], heap[j])) j++;
+
+        /* Exit if v is smaller than both sons */
+        if (smaller(tree, v, heap[j])) break;
+
+        /* Exchange v with the smallest son */
+        heap[k] = heap[j];  k = j;
+
+        /* And continue down the tree, setting j to the left son of k */
+        j <<= 1;
+    }
+    heap[k] = v;
+}
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ *    above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ *     array bl_count contains the frequencies for each bit length.
+ *     The length opt_len is updated; static_len is also updated if stree is
+ *     not null.
+ */
+local void gen_bitlen(desc)
+    tree_desc near *desc; /* the tree descriptor */
+{
+    ct_data near *tree  = desc->dyn_tree;
+    int near *extra     = desc->extra_bits;
+    int base            = desc->extra_base;
+    int max_code        = desc->max_code;
+    int max_length      = desc->max_length;
+    ct_data near *stree = desc->static_tree;
+    int h;              /* heap index */
+    int n, m;           /* iterate over the tree elements */
+    int bits;           /* bit length */
+    int xbits;          /* extra bits */
+    ush f;              /* frequency */
+    int overflow = 0;   /* number of elements with bit length too large */
+
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+
+    /* In a first pass, compute the optimal bit lengths (which may
+     * overflow in the case of the bit length tree).
+     */
+    tree[heap[heap_max]].Len = 0; /* root of the heap */
+
+    for (h = heap_max+1; h < HEAP_SIZE; h++) {
+        n = heap[h];
+        bits = tree[tree[n].Dad].Len + 1;
+        if (bits > max_length) bits = max_length, overflow++;
+        tree[n].Len = (ush)bits;
+        /* We overwrite tree[n].Dad which is no longer needed */
+
+        if (n > max_code) continue; /* not a leaf node */
+
+        bl_count[bits]++;
+        xbits = 0;
+        if (n >= base) xbits = extra[n-base];
+        f = tree[n].Freq;
+        opt_len += (ulg)f * (bits + xbits);
+        if (stree) static_len += (ulg)f * (stree[n].Len + xbits);
+    }
+    if (overflow == 0) return;
+
+    Trace((stderr,"\nbit length overflow\n"));
+    /* This happens for example on obj2 and pic of the Calgary corpus */
+
+    /* Find the first bit length which could increase: */
+    do {
+        bits = max_length-1;
+        while (bl_count[bits] == 0) bits--;
+        bl_count[bits]--;      /* move one leaf down the tree */
+        bl_count[bits+1] += 2; /* move one overflow item as its brother */
+        bl_count[max_length]--;
+        /* The brother of the overflow item also moves one step up,
+         * but this does not affect bl_count[max_length]
+         */
+        overflow -= 2;
+    } while (overflow > 0);
+
+    /* Now recompute all bit lengths, scanning in increasing frequency.
+     * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+     * lengths instead of fixing only the wrong ones. This idea is taken
+     * from 'ar' written by Haruhiko Okumura.)
+     */
+    for (bits = max_length; bits != 0; bits--) {
+        n = bl_count[bits];
+        while (n != 0) {
+            m = heap[--h];
+            if (m > max_code) continue;
+            if (tree[m].Len != (unsigned) bits) {
+                Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+                opt_len += ((long)bits-(long)tree[m].Len)*(long)tree[m].Freq;
+                tree[m].Len = (ush)bits;
+            }
+            n--;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ *     zero code length.
+ */
+local void gen_codes (tree, max_code)
+    ct_data near *tree;        /* the tree to decorate */
+    int max_code;              /* largest code with non zero frequency */
+{
+    ush next_code[MAX_BITS+1]; /* next code value for each bit length */
+    ush code = 0;              /* running code value */
+    int bits;                  /* bit index */
+    int n;                     /* code index */
+
+    /* The distribution counts are first used to generate the code values
+     * without bit reversal.
+     */
+    for (bits = 1; bits <= MAX_BITS; bits++) {
+        next_code[bits] = code = (code + bl_count[bits-1]) << 1;
+    }
+    /* Check that the bit counts in bl_count are consistent. The last code
+     * must be all ones.
+     */
+    Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
+            "inconsistent bit counts");
+    Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+    for (n = 0;  n <= max_code; n++) {
+        int len = tree[n].Len;
+        if (len == 0) continue;
+        /* Now reverse the bits */
+        tree[n].Code = bi_reverse(next_code[len]++, len);
+
+        Tracec(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+             n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
+    }
+}
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ *     and corresponding code. The length opt_len is updated; static_len is
+ *     also updated if stree is not null. The field max_code is set.
+ */
+local void build_tree(desc)
+    tree_desc near *desc; /* the tree descriptor */
+{
+    ct_data near *tree   = desc->dyn_tree;
+    ct_data near *stree  = desc->static_tree;
+    int elems            = desc->elems;
+    int n, m;          /* iterate over heap elements */
+    int max_code = -1; /* largest code with non zero frequency */
+    int node = elems;  /* next internal node of the tree */
+
+    /* Construct the initial heap, with least frequent element in
+     * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
+     * heap[0] is not used.
+     */
+    heap_len = 0, heap_max = HEAP_SIZE;
+
+    for (n = 0; n < elems; n++) {
+        if (tree[n].Freq != 0) {
+            heap[++heap_len] = max_code = n;
+            depth[n] = 0;
+        } else {
+            tree[n].Len = 0;
+        }
+    }
+
+    /* The pkzip format requires that at least one distance code exists,
+     * and that at least one bit should be sent even if there is only one
+     * possible code. So to avoid special checks later on we force at least
+     * two codes of non zero frequency.
+     */
+    while (heap_len < 2) {
+        int new = heap[++heap_len] = (max_code < 2 ? ++max_code : 0);
+        tree[new].Freq = 1;
+        depth[new] = 0;
+        opt_len--; if (stree) static_len -= stree[new].Len;
+        /* new is 0 or 1 so it does not have extra bits */
+    }
+    desc->max_code = max_code;
+
+    /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
+     * establish sub-heaps of increasing lengths:
+     */
+    for (n = heap_len/2; n >= 1; n--) pqdownheap(tree, n);
+
+    /* Construct the Huffman tree by repeatedly combining the least two
+     * frequent nodes.
+     */
+    do {
+        pqremove(tree, n);   /* n = node of least frequency */
+        m = heap[SMALLEST];  /* m = node of next least frequency */
+
+        heap[--heap_max] = n; /* keep the nodes sorted by frequency */
+        heap[--heap_max] = m;
+
+        /* Create a new node father of n and m */
+        tree[node].Freq = tree[n].Freq + tree[m].Freq;
+        depth[node] = (uch) (MAX(depth[n], depth[m]) + 1);
+        tree[n].Dad = tree[m].Dad = (ush)node;
+#ifdef DUMP_BL_TREE
+        if (tree == bl_tree) {
+            fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
+                    node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
+        }
+#endif
+        /* and insert the new node in the heap */
+        heap[SMALLEST] = node++;
+        pqdownheap(tree, SMALLEST);
+
+    } while (heap_len >= 2);
+
+    heap[--heap_max] = heap[SMALLEST];
+
+    /* At this point, the fields freq and dad are set. We can now
+     * generate the bit lengths.
+     */
+    gen_bitlen((tree_desc near *)desc);
+
+    /* The field len is now set, we can generate the bit codes */
+    gen_codes ((ct_data near *)tree, max_code);
+}
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree. Updates opt_len to take into account the repeat
+ * counts. (The contribution of the bit length codes will be added later
+ * during the construction of bl_tree.)
+ */
+local void scan_tree (tree, max_code)
+    ct_data near *tree; /* the tree to be scanned */
+    int max_code;       /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    if (nextlen == 0) max_count = 138, min_count = 3;
+    tree[max_code+1].Len = (ush)0xffff; /* guard */
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            bl_tree[curlen].Freq += count;
+        } else if (curlen != 0) {
+            if (curlen != prevlen) bl_tree[curlen].Freq++;
+            bl_tree[REP_3_6].Freq++;
+        } else if (count <= 10) {
+            bl_tree[REPZ_3_10].Freq++;
+        } else {
+            bl_tree[REPZ_11_138].Freq++;
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+local void send_tree (tree, max_code)
+    ct_data near *tree; /* the tree to be scanned */
+    int max_code;       /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    /* tree[max_code+1].Len = -1; */  /* guard already set */
+    if (nextlen == 0) max_count = 138, min_count = 3;
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            do { send_code(curlen, bl_tree); } while (--count != 0);
+
+        } else if (curlen != 0) {
+            if (curlen != prevlen) {
+                send_code(curlen, bl_tree); count--;
+            }
+            Assert(count >= 3 && count <= 6, " 3_6?");
+            send_code(REP_3_6, bl_tree); send_bits(count-3, 2);
+
+        } else if (count <= 10) {
+            send_code(REPZ_3_10, bl_tree); send_bits(count-3, 3);
+
+        } else {
+            send_code(REPZ_11_138, bl_tree); send_bits(count-11, 7);
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+local int build_bl_tree()
+{
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    /* Determine the bit length frequencies for literal and distance trees */
+    scan_tree((ct_data near *)dyn_ltree, l_desc.max_code);
+    scan_tree((ct_data near *)dyn_dtree, d_desc.max_code);
+
+    /* Build the bit length tree: */
+    build_tree((tree_desc near *)(&bl_desc));
+    /* opt_len now includes the length of the tree representations, except
+     * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
+     */
+
+    /* Determine the number of bit length codes to send. The pkzip format
+     * requires that at least 4 bit length codes be sent. (appnote.txt says
+     * 3 but the actual value used is 4.)
+     */
+    for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
+        if (bl_tree[bl_order[max_blindex]].Len != 0) break;
+    }
+    /* Update opt_len to include the bit length tree and counts */
+    opt_len += 3*(max_blindex+1) + 5+5+4;
+    Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", opt_len, static_len));
+
+    return max_blindex;
+}
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+local void send_all_trees(lcodes, dcodes, blcodes)
+    int lcodes, dcodes, blcodes; /* number of codes for each tree */
+{
+    int rank;                    /* index in bl_order */
+
+    Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+    Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+            "too many codes");
+    Tracev((stderr, "\nbl counts: "));
+    send_bits(lcodes-257, 5); /* not +255 as stated in appnote.txt */
+    send_bits(dcodes-1,   5);
+    send_bits(blcodes-4,  4); /* not -3 as stated in appnote.txt */
+    for (rank = 0; rank < blcodes; rank++) {
+        Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+        send_bits(bl_tree[bl_order[rank]].Len, 3);
+    }
+    Tracev((stderr, "\nbl tree: sent %ld", bits_sent));
+
+    send_tree((ct_data near *)dyn_ltree, lcodes-1); /* send the literal tree */
+    Tracev((stderr, "\nlit tree: sent %ld", bits_sent));
+
+    send_tree((ct_data near *)dyn_dtree, dcodes-1); /* send the distance tree */
+    Tracev((stderr, "\ndist tree: sent %ld", bits_sent));
+}
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and output the encoded block to the zip file. This function
+ * returns the total compressed length for the file so far.
+ */
+ulg flush_block(buf, stored_len, eof)
+    char *buf;        /* input block, or NULL if too old */
+    ulg stored_len;   /* length of input block */
+    int eof;          /* true if this is the last block for a file */
+{
+    ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    flag_buf[last_flags] = flags; /* Save the flags for the last 8 items */
+
+     /* Check if the file is ascii or binary */
+    if (*file_type == (ush)UNKNOWN) set_file_type();
+
+    /* Construct the literal and distance trees */
+    build_tree((tree_desc near *)(&l_desc));
+    Tracev((stderr, "\nlit data: dyn %ld, stat %ld", opt_len, static_len));
+
+    build_tree((tree_desc near *)(&d_desc));
+    Tracev((stderr, "\ndist data: dyn %ld, stat %ld", opt_len, static_len));
+    /* At this point, opt_len and static_len are the total bit lengths of
+     * the compressed block data, excluding the tree representations.
+     */
+
+    /* Build the bit length tree for the above two trees, and get the index
+     * in bl_order of the last bit length code to send.
+     */
+    max_blindex = build_bl_tree();
+
+    /* Determine the best encoding. Compute first the block length in bytes */
+    opt_lenb = (opt_len+3+7)>>3;
+    static_lenb = (static_len+3+7)>>3;
+    input_len += stored_len; /* for debugging only */
+
+    Trace((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u dist %u ",
+            opt_lenb, opt_len, static_lenb, static_len, stored_len,
+            last_lit, last_dist));
+
+    if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
+
+    /* If compression failed and this is the first and last block,
+     * and if the zip file can be seeked (to rewrite the local header),
+     * the whole file is transformed into a stored file:
+     */
+#ifdef FORCE_METHOD
+#else
+    if (stored_len <= opt_lenb && eof && compressed_len == 0L && seekable()) {
+#endif
+        /* Since LIT_BUFSIZE <= 2*WSIZE, the input data must be there: */
+        if (buf == (char*)0) error ("block vanished");
+
+        copy_block(buf, (unsigned)stored_len, 0); /* without header */
+        compressed_len = stored_len << 3;
+        *file_method = STORED;
+
+#ifdef FORCE_METHOD
+#else
+    } else if (stored_len+4 <= opt_lenb && buf != (char*)0) {
+                       /* 4: two words for the lengths */
+#endif
+        /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+         * Otherwise we can't have processed more than WSIZE input bytes since
+         * the last block flush, because compression would have been
+         * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+         * transform a block into a stored block.
+         */
+        send_bits((STORED_BLOCK<<1)+eof, 3);  /* send block type */
+        compressed_len = (compressed_len + 3 + 7) & ~7L;
+        compressed_len += (stored_len + 4) << 3;
+
+        copy_block(buf, (unsigned)stored_len, 1); /* with header */
+
+#ifdef FORCE_METHOD
+#else
+    } else if (static_lenb == opt_lenb) {
+#endif
+        send_bits((STATIC_TREES<<1)+eof, 3);
+        compress_block((ct_data near *)static_ltree, (ct_data near *)static_dtree);
+        compressed_len += 3 + static_len;
+    } else {
+        send_bits((DYN_TREES<<1)+eof, 3);
+        send_all_trees(l_desc.max_code+1, d_desc.max_code+1, max_blindex+1);
+        compress_block((ct_data near *)dyn_ltree, (ct_data near *)dyn_dtree);
+        compressed_len += 3 + opt_len;
+    }
+    Assert (compressed_len == bits_sent, "bad compressed size");
+    init_block();
+
+    if (eof) {
+        Assert (input_len == isize, "bad input size");
+        bi_windup();
+        compressed_len += 7;  /* align on byte boundary */
+    }
+    Tracev((stderr,"\ncomprlen %lu(%lu) ", compressed_len>>3,
+           compressed_len-7*eof));
+
+    return compressed_len >> 3;
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+int ct_tally (dist, lc)
+    int dist;  /* distance of matched string */
+    int lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
+{
+    l_buf[last_lit++] = (uch)lc;
+    if (dist == 0) {
+        /* lc is the unmatched char */
+        dyn_ltree[lc].Freq++;
+    } else {
+        /* Here, lc is the match length - MIN_MATCH */
+        dist--;             /* dist = match distance - 1 */
+        Assert((ush)dist < (ush)MAX_DIST &&
+               (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+               (ush)d_code(dist) < (ush)D_CODES,  "ct_tally: bad match");
+
+        dyn_ltree[length_code[lc]+LITERALS+1].Freq++;
+        dyn_dtree[d_code(dist)].Freq++;
+
+        d_buf[last_dist++] = (ush)dist;
+        flags |= flag_bit;
+    }
+    flag_bit <<= 1;
+
+    /* Output the flags if they fill a byte: */
+    if ((last_lit & 7) == 0) {
+        flag_buf[last_flags++] = flags;
+        flags = 0, flag_bit = 1;
+    }
+    /* Try to guess if it is profitable to stop the current block here */
+    if ((last_lit & 0xfff) == 0) {
+        /* Compute an upper bound for the compressed length */
+        ulg out_length = (ulg)last_lit*8L;
+        ulg in_length = (ulg)strstart-block_start;
+        int dcode;
+        for (dcode = 0; dcode < D_CODES; dcode++) {
+            out_length += (ulg)dyn_dtree[dcode].Freq*(5L+extra_dbits[dcode]);
+        }
+        out_length >>= 3;
+        Trace((stderr,"\nlast_lit %u, last_dist %u, in %ld, out ~%ld(%ld%%) ",
+               last_lit, last_dist, in_length, out_length,
+               100L - out_length*100L/in_length));
+        if (last_dist < last_lit/2 && out_length < in_length/2) return 1;
+    }
+    return (last_lit == LIT_BUFSIZE-1 || last_dist == DIST_BUFSIZE);
+    /* We avoid equality with LIT_BUFSIZE because of wraparound at 64K
+     * on 16 bit machines and because stored blocks are restricted to
+     * 64K-1 bytes.
+     */
+}
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+local void compress_block(ltree, dtree)
+    ct_data near *ltree; /* literal tree */
+    ct_data near *dtree; /* distance tree */
+{
+    unsigned dist;      /* distance of matched string */
+    int lc;             /* match length or unmatched char (if dist == 0) */
+    unsigned lx = 0;    /* running index in l_buf */
+    unsigned dx = 0;    /* running index in d_buf */
+    unsigned fx = 0;    /* running index in flag_buf */
+    uch flag = 0;       /* current flags */
+    unsigned code;      /* the code to send */
+    int extra;          /* number of extra bits to send */
+
+    if (last_lit != 0) do {
+        if ((lx & 7) == 0) flag = flag_buf[fx++];
+        lc = l_buf[lx++];
+        if ((flag & 1) == 0) {
+            send_code(lc, ltree); /* send a literal byte */
+            Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+        } else {
+            /* Here, lc is the match length - MIN_MATCH */
+            code = length_code[lc];
+            send_code(code+LITERALS+1, ltree); /* send the length code */
+            extra = extra_lbits[code];
+            if (extra != 0) {
+                lc -= base_length[code];
+                send_bits(lc, extra);        /* send the extra length bits */
+            }
+            dist = d_buf[dx++];
+            /* Here, dist is the match distance - 1 */
+            code = d_code(dist);
+            Assert (code < D_CODES, "bad d_code");
+
+            send_code(code, dtree);       /* send the distance code */
+            extra = extra_dbits[code];
+            if (extra != 0) {
+                dist -= base_dist[code];
+                send_bits(dist, extra);   /* send the extra distance bits */
+            }
+        } /* literal or match pair ? */
+        flag >>= 1;
+    } while (lx < last_lit);
+
+    send_code(END_BLOCK, ltree);
+}
+
+/* ===========================================================================
+ * Set the file type to ASCII or BINARY, using a crude approximation:
+ * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise.
+ * IN assertion: the fields freq of dyn_ltree are set and the total of all
+ * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
+ */
+local void set_file_type()
+{
+    int n = 0;
+    unsigned ascii_freq = 0;
+    unsigned bin_freq = 0;
+    while (n < 7)        bin_freq += dyn_ltree[n++].Freq;
+    while (n < 128)    ascii_freq += dyn_ltree[n++].Freq;
+    while (n < LITERALS) bin_freq += dyn_ltree[n++].Freq;
+    *file_type = bin_freq > (ascii_freq >> 2) ? BINARY : ASCII;
+    if (*file_type == BINARY && translate_eol) {
+        warn("-l used on binary file", "");
+    }
+}
+/* util.c -- utility functions for gzip support
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#else
+   extern int errno;
+#endif
+
+extern ulg crc_32_tab[];   /* crc table, defined below */
+
+/* ===========================================================================
+ * Copy input to output unchanged: zcat == cat with --force.
+ * IN assertion: insize bytes have already been read in inbuf.
+ */
+int copy(in, out)
+    int in, out;   /* input and output file descriptors */
+{
+    errno = 0;
+    while (insize != 0 && (int)insize != EOF) {
+	write_buf(out, (char*)inbuf, insize);
+	bytes_out += insize;
+	insize = read(in, (char*)inbuf, INBUFSIZ);
+    }
+    if ((int)insize == EOF && errno != 0) {
+	read_error();
+    }
+    bytes_in = bytes_out;
+    return OK;
+}
+
+/* ========================================================================
+ * Put string s in lower case, return s.
+ */
+char *strlwr(s)
+    char *s;
+{
+    char *t;
+    for (t = s; *t; t++) *t = tolow(*t);
+    return s;
+}
+
+#if defined(NO_STRING_H) && !defined(STDC_HEADERS)
+
+/* Provide missing strspn and strcspn functions. */
+
+#  ifndef __STDC__
+#    define const
+#  endif
+
+int strspn  OF((const char *s, const char *accept));
+int strcspn OF((const char *s, const char *reject));
+
+/* ========================================================================
+ * Return the length of the maximum initial segment
+ * of s which contains only characters in accept.
+ */
+int strspn(s, accept)
+    const char *s;
+    const char *accept;
+{
+    register const char *p;
+    register const char *a;
+    register int count = 0;
+
+    for (p = s; *p != '\0'; ++p) {
+	for (a = accept; *a != '\0'; ++a) {
+	    if (*p == *a) break;
+	}
+	if (*a == '\0') return count;
+	++count;
+    }
+    return count;
+}
+
+/* ========================================================================
+ * Return the length of the maximum inital segment of s
+ * which contains no characters from reject.
+ */
+int strcspn(s, reject)
+    const char *s;
+    const char *reject;
+{
+    register int count = 0;
+
+    while (*s != '\0') {
+	if (strchr(reject, *s++) != NULL) return count;
+	++count;
+    }
+    return count;
+}
+
+#endif /* NO_STRING_H */
+
+/* ========================================================================
+ * Add an environment variable (if any) before argv, and update argc.
+ * Return the expanded environment variable to be freed later, or NULL 
+ * if no options were added to argv.
+ */
+#define SEPARATOR	" \t"	/* separators in env variable */
+
+char *add_envopt(argcp, argvp, env)
+    int *argcp;          /* pointer to argc */
+    char ***argvp;       /* pointer to argv */
+    char *env;           /* name of environment variable */
+{
+    char *p;             /* running pointer through env variable */
+    char **oargv;        /* runs through old argv array */
+    char **nargv;        /* runs through new argv array */
+    int	 oargc = *argcp; /* old argc */
+    int  nargc = 0;      /* number of arguments in env variable */
+
+    env = (char*)getenv(env);
+    if (env == NULL) return NULL;
+
+    p = (char*)xmalloc(strlen(env)+1);
+    env = strcpy(p, env);                    /* keep env variable intact */
+
+    for (p = env; *p; nargc++ ) {            /* move through env */
+	p += strspn(p, SEPARATOR);	     /* skip leading separators */
+	if (*p == '\0') break;
+
+	p += strcspn(p, SEPARATOR);	     /* find end of word */
+	if (*p) *p++ = '\0';		     /* mark it */
+    }
+    if (nargc == 0) {
+	free(env);
+	return NULL;
+    }
+    *argcp += nargc;
+    /* Allocate the new argv array, with an extra element just in case
+     * the original arg list did not end with a NULL.
+     */
+    nargv = (char**)calloc(*argcp+1, sizeof(char *));
+    if (nargv == NULL) error("out of memory");
+    oargv  = *argvp;
+    *argvp = nargv;
+
+    /* Copy the program name first */
+    if (oargc-- < 0) error("argc<=0");
+    *(nargv++) = *(oargv++);
+
+    /* Then copy the environment args */
+    for (p = env; nargc > 0; nargc--) {
+	p += strspn(p, SEPARATOR);	     /* skip separators */
+	*(nargv++) = p;			     /* store start */
+	while (*p++) ;			     /* skip over word */
+    }
+
+    /* Finally copy the old args and add a NULL (usual convention) */
+    while (oargc--) *(nargv++) = *(oargv++);
+    *nargv = NULL;
+    return env;
+}
+/* ========================================================================
+ * Display compression ratio on the given stream on 6 characters.
+ */
+void display_ratio(num, den, file)
+    long num;
+    long den;
+    FILE *file;
+{
+    long ratio;  /* 1000 times the compression ratio */
+
+    if (den == 0) {
+	ratio = 0; /* no compression */
+    } else if (den < 2147483L) { /* (2**31 -1)/1000 */
+	ratio = 1000L*num/den;
+    } else {
+	ratio = num/(den/1000L);
+    }
+    if (ratio < 0) {
+	putc('-', file);
+	ratio = -ratio;
+    } else {
+	putc(' ', file);
+    }
+    fprintf(file, "%2ld.%1ld%%", ratio / 10L, ratio % 10L);
+}
+
+
+/* zip.c -- compress files to the gzip or pkzip format
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+local ulg crc;       /* crc on uncompressed file data */
+long header_bytes;   /* number of bytes in gzip header */
+
+/* ===========================================================================
+ * Deflate in to out.
+ * IN assertions: the input and output buffers are cleared.
+ *   The variables time_stamp and save_orig_name are initialized.
+ */
+int zip(in, out)
+    int in, out;            /* input and output file descriptors */
+{
+    uch  flags = 0;         /* general purpose bit flags */
+    ush  attr = 0;          /* ascii/binary flag */
+    ush  deflate_flags = 0; /* pkzip -es, -en or -ex equivalent */
+
+    ifd = in;
+    ofd = out;
+    outcnt = 0;
+
+    /* Write the header to the gzip file. See algorithm.doc for the format */
+
+    method = DEFLATED;
+    put_byte(GZIP_MAGIC[0]); /* magic header */
+    put_byte(GZIP_MAGIC[1]);
+    put_byte(DEFLATED);      /* compression method */
+
+    put_byte(flags);         /* general flags */
+    put_long(time_stamp);
+
+    /* Write deflated file to zip file */
+    crc = updcrc(0, 0);
+
+    bi_init(out);
+    ct_init(&attr, &method);
+    lm_init(&deflate_flags);
+
+    put_byte((uch)deflate_flags); /* extra flags */
+    put_byte(OS_CODE);            /* OS identifier */
+
+    header_bytes = (long)outcnt;
+
+    (void)deflate();
+
+    /* Write the crc and uncompressed size */
+    put_long(crc);
+    put_long(isize);
+    header_bytes += 2*sizeof(long);
+
+    flush_outbuf();
+    return OK;
+}
+
+
+/* ===========================================================================
+ * Read a new buffer from the current input file, perform end-of-line
+ * translation, and update the crc and input file size.
+ * IN assertion: size >= 2 (for end-of-line translation)
+ */
+int file_read(buf, size)
+    char *buf;
+    unsigned size;
+{
+    unsigned len;
+
+    Assert(insize == 0, "inbuf not empty");
+
+    len = read(ifd, buf, size);
+    if (len == (unsigned)(-1) || len == 0) return (int)len;
+
+    crc = updcrc((uch*)buf, len);
+    isize += (ulg)len;
+    return (int)len;
+}
+#endif
diff --git a/halt.c b/halt.c
new file mode 100644
index 000000000..7f3ccf966
--- /dev/null
+++ b/halt.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+#include <signal.h>
+
+const char	halt_usage[] = "halt\n"
+"\n\t"
+"\thalt the system.\n";
+
+extern int
+halt_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return kill(1, SIGUSR1);
+}
diff --git a/init.c b/init.c
new file mode 100644
index 000000000..4771722b9
--- /dev/null
+++ b/init.c
@@ -0,0 +1,438 @@
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <termios.h>
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/wait.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/reboot.h>
+#include <sys/kdaemon.h>
+#include <sys/swap.h>
+#include <sys/sysmacros.h>
+
+const char		init_usage[] = "Used internally by the system.";
+char			console[16] = "";
+const char *	default_console = "/dev/tty1";
+char *			first_terminal = NULL;
+const char *	second_terminal = "/dev/tty2";
+const char		log[] = "/dev/tty3";
+char * term_ptr = NULL;
+
+static void
+message(const char * terminal, const char * pattern, ...)
+{
+	int	fd;
+	FILE *	con = 0;
+	va_list	arguments;
+
+	/*
+	 * Open the console device each time a message is printed. If the user
+	 * has switched consoles, the open will get the new console. If we kept
+	 * the console open, we'd always print to the same one.
+	 */
+	if ( ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0)
+	 ||  ((con = fdopen(fd, "w")) == NULL) )
+		return;
+
+	va_start(arguments, pattern);
+	vfprintf(con, pattern, arguments);
+	va_end(arguments);
+	fclose(con);
+}
+
+static int
+waitfor(int pid)
+{
+	int	status;
+	int	wpid;
+	
+	message(log, "Waiting for process %d.\n", pid);
+	while ( (wpid = wait(&status)) != pid ) {
+		if ( wpid > 0 ) {
+			message(
+			 log
+			,"pid %d exited, status=%x.\n"
+			,wpid
+			,status);
+		}
+	}
+	return wpid;
+}
+
+static int
+run(
+ const char *			program
+,const char * const *	arguments
+,const char *			terminal
+,int					get_enter)
+{
+	static const char	control_characters[] = {
+		'\003',
+		'\034',
+		'\177',
+		'\025',
+		'\004',
+		'\0',
+		'\1',
+		'\0',
+		'\021',
+		'\023',
+		'\032',
+		'\0',
+		'\022',
+		'\017',
+		'\027',
+		'\026',
+		'\0'
+	};
+
+	static char * environment[] = {
+		"HOME=/",
+		"PATH=/bin:/sbin:/usr/bin:/usr/sbin",
+		"SHELL=/bin/sh",
+		0,
+		"USER=root",
+		0
+	};
+
+	static const char	press_enter[] =
+ "Please press Enter to activate this console. ";
+
+	int	pid;
+
+	environment[3]=term_ptr;
+
+	pid = fork();
+	if ( pid == 0 ) {
+		struct termios	t;
+		const char * const * arg;
+
+		close(0);
+		close(1);
+		close(2);
+		setsid();
+
+		open(terminal, O_RDWR);
+		dup(0);
+		dup(0);
+		tcsetpgrp(0, getpgrp());
+
+		tcgetattr(0, &t);
+		memcpy(t.c_cc, control_characters, sizeof(control_characters));
+		t.c_line = 0;
+		t.c_iflag = ICRNL|IXON|IXOFF;
+		t.c_oflag = OPOST|ONLCR;
+		t.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE|IEXTEN;
+		tcsetattr(0, TCSANOW, &t);
+
+		if ( get_enter ) {
+			/*
+			 * Save memory by not exec-ing anything large (like a shell)
+			 * before the user wants it. This is critical if swap is not
+			 * enabled and the system has low memory. Generally this will
+			 * be run on the second virtual console, and the first will
+			 * be allowed to start a shell or the installation system.
+			 */
+			char	c;
+			write(1, press_enter, sizeof(press_enter) - 1);
+			read(0, &c, 1);
+		}
+		
+		message(log, "Executing ");
+		arg = arguments;
+		while ( *arg != 0 )
+			message(log, "%s ", *arg++);
+		message(log, "\n");
+
+		execve(program, (char * *)arguments, (char * *)environment);
+		message(log, "%s: could not execute: %s.\r\n", program, strerror(errno));
+		exit(-1);
+	}
+	return pid;
+}
+
+static int
+mem_total()
+{
+  char s[80];
+  char *p;
+  FILE *f;
+  const char pattern[]="MemTotal:";
+
+  f=fopen("/proc/meminfo","r");
+  while (NULL != fgets(s,79,f)) {
+    p=strstr(s, pattern);
+    if (NULL != p) {
+      fclose(f);
+      return(atoi(p+strlen(pattern)));
+    }
+  }
+  return -1;
+}
+
+static void
+set_free_pages()
+{
+  char s[80];
+  FILE *f;
+
+  f=fopen("/proc/sys/vm/freepages","r");
+  fgets(s,79,f);
+  if (atoi(s) < 32) {
+    fclose(f);
+    f=fopen("/proc/sys/vm/freepages","w");
+    fprintf(f,"30\t40\t50\n");
+    printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
+  }
+  fclose(f);
+}
+
+static void
+shutdown_system(int do_reboot)
+{
+	static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0};
+
+	sync();
+	/* Allow Ctrl-Alt-Del to reboot system. */
+	reboot(RB_ENABLE_CAD);
+
+	/* Send signals to every process _except_ pid 1 */
+	message(console, "Sending SIGHUP to all processes.\r\n");
+	kill(-1, SIGHUP);
+	sleep(2);
+	sync();
+	message(console, "Sending SIGKILL to all processes.\r\n");
+	kill(-1, SIGKILL);
+	sleep(1);
+	waitfor(run("/bin/umount", umount_args, console, 0));
+	sync();
+	bdflush(1, 0);
+	sync();
+	reboot(do_reboot ?RB_AUTOBOOT : RB_HALT_SYSTEM);
+	exit(0);
+}
+
+static void
+halt_signal(int sig)
+{
+	shutdown_system(0);
+}
+
+static void
+reboot_signal(int sig)
+{
+	shutdown_system(1);
+}
+
+static void
+exit_signal(int sig)
+{
+  
+  /* initrd doesn't work anyway */
+
+  shutdown_system(1);
+
+	/* This is used on the initial ramdisk */
+
+  /*	message(log, "Init exiting.");
+	exit(0);
+	*/
+}
+
+void
+configure_terminals( int serial_cons );
+
+extern int
+init_main(struct FileInfo * i, int argc, char * * argv)
+{
+	static const char * const	rc = "etc/rc";
+	const char *				arguments[100];
+	int							run_rc = 1;
+	int							j;
+	int							pid1 = 0;
+	int							pid2 = 0;
+	int							create_swap= -1;
+	struct stat					statbuf;
+#ifndef INCLUDE_DINSTALL
+	const char *				tty_commands[2] = { "bin/sh", "bin/sh"};
+#else
+	const char *				tty_commands[2] = { "sbin/dinstall", "bin/sh"};
+#endif
+	char						swap[20];
+	int							serial_console = 0;
+
+	/*
+	 * If I am started as /linuxrc instead of /sbin/init, I don't have the
+	 * environment that init expects. I can't fix the signal behavior. Try
+	 * to divorce from the controlling terminal with setsid(). This won't work
+	 * if I am the process group leader.
+	 */
+	setsid();
+
+	signal(SIGUSR1, halt_signal);
+	signal(SIGUSR2, reboot_signal);
+	signal(SIGINT, reboot_signal);
+	signal(SIGTERM, exit_signal);
+
+	reboot(RB_DISABLE_CAD);
+
+	message(log, "%s: started. ", argv[0]);
+
+	for ( j = 1; j < argc; j++ ) {
+		if ( strcmp(argv[j], "single") == 0 ) {
+			run_rc = 0;
+			tty_commands[0] = "bin/sh";
+			tty_commands[1] = 0;
+		}
+	}
+	for ( j = 0; __environ[j] != 0; j++ ) {
+		if ( strncmp(__environ[j], "tty", 3) == 0
+		 && __environ[j][3] >= '1'
+		 && __environ[j][3] <= '2'
+		 && __environ[j][4] == '=' ) {
+			const char * s = &__environ[j][5];
+
+			if ( *s == 0 || strcmp(s, "off") == 0 )
+				s = 0;
+
+			tty_commands[__environ[j][3] - '1'] = s;
+		}
+		/* Should catch the syntax of Sparc kernel console setting.   */
+		/* The kernel does not recognize a serial console when getting*/
+		/* console=/dev/ttySX !! */
+		else if ( strcmp(__environ[j], "console=ttya") == 0 ) {
+			serial_console=1;
+		}
+		else if ( strcmp(__environ[j], "console=ttyb") == 0 ) {
+			serial_console=2;
+		}
+		/* standard console settings */
+		else if ( strncmp(__environ[j], "console=", 8) == 0 ) {
+			first_terminal=&(__environ[j][8]);
+		}
+		else if ( strncmp(__environ[j], "TERM=", 5) == 0) {
+			term_ptr=__environ[j];
+		}
+	}
+	configure_terminals( serial_console );
+
+	printf("mounting /proc ...\n");
+	if (mount("/proc","/proc","proc",0,0)) {
+	  perror("mounting /proc failed\n");
+	}
+	printf("\tdone.\n");
+
+	set_free_pages();
+
+	if (mem_total() < 3500) { /* not enough memory for standard install */
+	  int retval;
+	  retval= stat("/etc/swappartition",&statbuf);
+	  if (retval) {
+	    printf("
+You do not have enough RAM, hence you must boot using the Boot Disk
+for Low Memory systems.
+
+Read the instructions in the install.html file.
+");
+	    while (1) {;}
+	  } else { /* everything OK */
+	    FILE *f;
+
+	    f=fopen("/etc/swappartition","r");
+	    fgets(swap,19,f);
+	    fclose(f);
+	    *(strstr(swap,"\n"))='\0';
+
+	    if (swapon(swap,0)) {
+	      perror("swapon failed\n");
+	    } else {
+	      f=fopen("/etc/swaps","w");
+	      fprintf(f,"%s none swap rw 0 0",swap);
+		fclose(f);
+	      create_swap = 0;
+	    }
+	  }
+	}
+
+	/*
+	 * Don't modify **argv directly, it would show up in the "ps" display.
+	 * I don't want "init" to look like "rc".
+	 */
+	arguments[0] = rc;
+	for ( j = 1; j < argc; j++ ) {
+		arguments[j] = argv[j];
+	}
+	arguments[j] = 0;
+
+	if ( run_rc )
+		waitfor(run(rc, arguments, console, 0));
+
+	if ( 0 == create_swap) {
+	  if (unlink("/etc/swappartition")) {
+	    perror("unlinking /etc/swappartition");
+	  }
+	}
+
+	arguments[0] = "-sh";
+	arguments[1] = 0;
+	for ( ; ; ) {
+		int	wpid;
+		int	status;
+
+		if ( pid1 == 0 && tty_commands[0] ) {
+			/* Ask before starting a shell */
+			/*
+			 arguments[0] = tty_commands[0];
+			 */
+			pid1 = run(tty_commands[0], arguments, first_terminal, 0);
+		}
+		if ( pid2 == 0 && tty_commands[1] )
+			pid2 = run(tty_commands[1], arguments, second_terminal, 1);
+		wpid = wait(&status);
+		if ( wpid > 0 ) {
+			/* DEBUGGING */
+			message(log, "pid %d exited, status=%x.\n", wpid, status);
+		}
+		if ( wpid == pid1 ) {
+		  pid1 = 0;
+		}
+		if ( wpid == pid2 )
+			pid2 = 0;
+	}
+}
+
+void
+configure_terminals( int serial_cons )
+{
+	//struct stat statbuf;
+	char *tty;
+
+	switch (serial_cons) {
+	case 1:
+		strcpy( console, "/dev/ttyS0" );
+		break;
+	case 2:
+		strcpy( console, "/dev/ttyS1" );
+		break;
+	default:
+		tty = ttyname(0);
+		if (tty) {
+			strcpy( console, tty );
+			if (!strncmp( tty, "/dev/ttyS", 9 ))
+				serial_cons=1;
+		}
+		else
+			/* falls back to /dev/tty1 if an error occurs */
+			strcpy( console, default_console );
+	}
+	if (!first_terminal)
+		first_terminal = console;
+	if (serial_cons && !strncmp(term_ptr,"TERM=linux",10))
+		term_ptr = "TERM=vt100";
+}
diff --git a/init/halt.c b/init/halt.c
new file mode 100644
index 000000000..7f3ccf966
--- /dev/null
+++ b/init/halt.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+#include <signal.h>
+
+const char	halt_usage[] = "halt\n"
+"\n\t"
+"\thalt the system.\n";
+
+extern int
+halt_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return kill(1, SIGUSR1);
+}
diff --git a/init/init.c b/init/init.c
new file mode 100644
index 000000000..4771722b9
--- /dev/null
+++ b/init/init.c
@@ -0,0 +1,438 @@
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <termios.h>
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/wait.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/reboot.h>
+#include <sys/kdaemon.h>
+#include <sys/swap.h>
+#include <sys/sysmacros.h>
+
+const char		init_usage[] = "Used internally by the system.";
+char			console[16] = "";
+const char *	default_console = "/dev/tty1";
+char *			first_terminal = NULL;
+const char *	second_terminal = "/dev/tty2";
+const char		log[] = "/dev/tty3";
+char * term_ptr = NULL;
+
+static void
+message(const char * terminal, const char * pattern, ...)
+{
+	int	fd;
+	FILE *	con = 0;
+	va_list	arguments;
+
+	/*
+	 * Open the console device each time a message is printed. If the user
+	 * has switched consoles, the open will get the new console. If we kept
+	 * the console open, we'd always print to the same one.
+	 */
+	if ( ((fd = open(terminal, O_WRONLY|O_NOCTTY)) < 0)
+	 ||  ((con = fdopen(fd, "w")) == NULL) )
+		return;
+
+	va_start(arguments, pattern);
+	vfprintf(con, pattern, arguments);
+	va_end(arguments);
+	fclose(con);
+}
+
+static int
+waitfor(int pid)
+{
+	int	status;
+	int	wpid;
+	
+	message(log, "Waiting for process %d.\n", pid);
+	while ( (wpid = wait(&status)) != pid ) {
+		if ( wpid > 0 ) {
+			message(
+			 log
+			,"pid %d exited, status=%x.\n"
+			,wpid
+			,status);
+		}
+	}
+	return wpid;
+}
+
+static int
+run(
+ const char *			program
+,const char * const *	arguments
+,const char *			terminal
+,int					get_enter)
+{
+	static const char	control_characters[] = {
+		'\003',
+		'\034',
+		'\177',
+		'\025',
+		'\004',
+		'\0',
+		'\1',
+		'\0',
+		'\021',
+		'\023',
+		'\032',
+		'\0',
+		'\022',
+		'\017',
+		'\027',
+		'\026',
+		'\0'
+	};
+
+	static char * environment[] = {
+		"HOME=/",
+		"PATH=/bin:/sbin:/usr/bin:/usr/sbin",
+		"SHELL=/bin/sh",
+		0,
+		"USER=root",
+		0
+	};
+
+	static const char	press_enter[] =
+ "Please press Enter to activate this console. ";
+
+	int	pid;
+
+	environment[3]=term_ptr;
+
+	pid = fork();
+	if ( pid == 0 ) {
+		struct termios	t;
+		const char * const * arg;
+
+		close(0);
+		close(1);
+		close(2);
+		setsid();
+
+		open(terminal, O_RDWR);
+		dup(0);
+		dup(0);
+		tcsetpgrp(0, getpgrp());
+
+		tcgetattr(0, &t);
+		memcpy(t.c_cc, control_characters, sizeof(control_characters));
+		t.c_line = 0;
+		t.c_iflag = ICRNL|IXON|IXOFF;
+		t.c_oflag = OPOST|ONLCR;
+		t.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE|IEXTEN;
+		tcsetattr(0, TCSANOW, &t);
+
+		if ( get_enter ) {
+			/*
+			 * Save memory by not exec-ing anything large (like a shell)
+			 * before the user wants it. This is critical if swap is not
+			 * enabled and the system has low memory. Generally this will
+			 * be run on the second virtual console, and the first will
+			 * be allowed to start a shell or the installation system.
+			 */
+			char	c;
+			write(1, press_enter, sizeof(press_enter) - 1);
+			read(0, &c, 1);
+		}
+		
+		message(log, "Executing ");
+		arg = arguments;
+		while ( *arg != 0 )
+			message(log, "%s ", *arg++);
+		message(log, "\n");
+
+		execve(program, (char * *)arguments, (char * *)environment);
+		message(log, "%s: could not execute: %s.\r\n", program, strerror(errno));
+		exit(-1);
+	}
+	return pid;
+}
+
+static int
+mem_total()
+{
+  char s[80];
+  char *p;
+  FILE *f;
+  const char pattern[]="MemTotal:";
+
+  f=fopen("/proc/meminfo","r");
+  while (NULL != fgets(s,79,f)) {
+    p=strstr(s, pattern);
+    if (NULL != p) {
+      fclose(f);
+      return(atoi(p+strlen(pattern)));
+    }
+  }
+  return -1;
+}
+
+static void
+set_free_pages()
+{
+  char s[80];
+  FILE *f;
+
+  f=fopen("/proc/sys/vm/freepages","r");
+  fgets(s,79,f);
+  if (atoi(s) < 32) {
+    fclose(f);
+    f=fopen("/proc/sys/vm/freepages","w");
+    fprintf(f,"30\t40\t50\n");
+    printf("\nIncreased /proc/sys/vm/freepages values to 30/40/50\n");
+  }
+  fclose(f);
+}
+
+static void
+shutdown_system(int do_reboot)
+{
+	static const char * const umount_args[] = {"/bin/umount", "-a", "-n", 0};
+
+	sync();
+	/* Allow Ctrl-Alt-Del to reboot system. */
+	reboot(RB_ENABLE_CAD);
+
+	/* Send signals to every process _except_ pid 1 */
+	message(console, "Sending SIGHUP to all processes.\r\n");
+	kill(-1, SIGHUP);
+	sleep(2);
+	sync();
+	message(console, "Sending SIGKILL to all processes.\r\n");
+	kill(-1, SIGKILL);
+	sleep(1);
+	waitfor(run("/bin/umount", umount_args, console, 0));
+	sync();
+	bdflush(1, 0);
+	sync();
+	reboot(do_reboot ?RB_AUTOBOOT : RB_HALT_SYSTEM);
+	exit(0);
+}
+
+static void
+halt_signal(int sig)
+{
+	shutdown_system(0);
+}
+
+static void
+reboot_signal(int sig)
+{
+	shutdown_system(1);
+}
+
+static void
+exit_signal(int sig)
+{
+  
+  /* initrd doesn't work anyway */
+
+  shutdown_system(1);
+
+	/* This is used on the initial ramdisk */
+
+  /*	message(log, "Init exiting.");
+	exit(0);
+	*/
+}
+
+void
+configure_terminals( int serial_cons );
+
+extern int
+init_main(struct FileInfo * i, int argc, char * * argv)
+{
+	static const char * const	rc = "etc/rc";
+	const char *				arguments[100];
+	int							run_rc = 1;
+	int							j;
+	int							pid1 = 0;
+	int							pid2 = 0;
+	int							create_swap= -1;
+	struct stat					statbuf;
+#ifndef INCLUDE_DINSTALL
+	const char *				tty_commands[2] = { "bin/sh", "bin/sh"};
+#else
+	const char *				tty_commands[2] = { "sbin/dinstall", "bin/sh"};
+#endif
+	char						swap[20];
+	int							serial_console = 0;
+
+	/*
+	 * If I am started as /linuxrc instead of /sbin/init, I don't have the
+	 * environment that init expects. I can't fix the signal behavior. Try
+	 * to divorce from the controlling terminal with setsid(). This won't work
+	 * if I am the process group leader.
+	 */
+	setsid();
+
+	signal(SIGUSR1, halt_signal);
+	signal(SIGUSR2, reboot_signal);
+	signal(SIGINT, reboot_signal);
+	signal(SIGTERM, exit_signal);
+
+	reboot(RB_DISABLE_CAD);
+
+	message(log, "%s: started. ", argv[0]);
+
+	for ( j = 1; j < argc; j++ ) {
+		if ( strcmp(argv[j], "single") == 0 ) {
+			run_rc = 0;
+			tty_commands[0] = "bin/sh";
+			tty_commands[1] = 0;
+		}
+	}
+	for ( j = 0; __environ[j] != 0; j++ ) {
+		if ( strncmp(__environ[j], "tty", 3) == 0
+		 && __environ[j][3] >= '1'
+		 && __environ[j][3] <= '2'
+		 && __environ[j][4] == '=' ) {
+			const char * s = &__environ[j][5];
+
+			if ( *s == 0 || strcmp(s, "off") == 0 )
+				s = 0;
+
+			tty_commands[__environ[j][3] - '1'] = s;
+		}
+		/* Should catch the syntax of Sparc kernel console setting.   */
+		/* The kernel does not recognize a serial console when getting*/
+		/* console=/dev/ttySX !! */
+		else if ( strcmp(__environ[j], "console=ttya") == 0 ) {
+			serial_console=1;
+		}
+		else if ( strcmp(__environ[j], "console=ttyb") == 0 ) {
+			serial_console=2;
+		}
+		/* standard console settings */
+		else if ( strncmp(__environ[j], "console=", 8) == 0 ) {
+			first_terminal=&(__environ[j][8]);
+		}
+		else if ( strncmp(__environ[j], "TERM=", 5) == 0) {
+			term_ptr=__environ[j];
+		}
+	}
+	configure_terminals( serial_console );
+
+	printf("mounting /proc ...\n");
+	if (mount("/proc","/proc","proc",0,0)) {
+	  perror("mounting /proc failed\n");
+	}
+	printf("\tdone.\n");
+
+	set_free_pages();
+
+	if (mem_total() < 3500) { /* not enough memory for standard install */
+	  int retval;
+	  retval= stat("/etc/swappartition",&statbuf);
+	  if (retval) {
+	    printf("
+You do not have enough RAM, hence you must boot using the Boot Disk
+for Low Memory systems.
+
+Read the instructions in the install.html file.
+");
+	    while (1) {;}
+	  } else { /* everything OK */
+	    FILE *f;
+
+	    f=fopen("/etc/swappartition","r");
+	    fgets(swap,19,f);
+	    fclose(f);
+	    *(strstr(swap,"\n"))='\0';
+
+	    if (swapon(swap,0)) {
+	      perror("swapon failed\n");
+	    } else {
+	      f=fopen("/etc/swaps","w");
+	      fprintf(f,"%s none swap rw 0 0",swap);
+		fclose(f);
+	      create_swap = 0;
+	    }
+	  }
+	}
+
+	/*
+	 * Don't modify **argv directly, it would show up in the "ps" display.
+	 * I don't want "init" to look like "rc".
+	 */
+	arguments[0] = rc;
+	for ( j = 1; j < argc; j++ ) {
+		arguments[j] = argv[j];
+	}
+	arguments[j] = 0;
+
+	if ( run_rc )
+		waitfor(run(rc, arguments, console, 0));
+
+	if ( 0 == create_swap) {
+	  if (unlink("/etc/swappartition")) {
+	    perror("unlinking /etc/swappartition");
+	  }
+	}
+
+	arguments[0] = "-sh";
+	arguments[1] = 0;
+	for ( ; ; ) {
+		int	wpid;
+		int	status;
+
+		if ( pid1 == 0 && tty_commands[0] ) {
+			/* Ask before starting a shell */
+			/*
+			 arguments[0] = tty_commands[0];
+			 */
+			pid1 = run(tty_commands[0], arguments, first_terminal, 0);
+		}
+		if ( pid2 == 0 && tty_commands[1] )
+			pid2 = run(tty_commands[1], arguments, second_terminal, 1);
+		wpid = wait(&status);
+		if ( wpid > 0 ) {
+			/* DEBUGGING */
+			message(log, "pid %d exited, status=%x.\n", wpid, status);
+		}
+		if ( wpid == pid1 ) {
+		  pid1 = 0;
+		}
+		if ( wpid == pid2 )
+			pid2 = 0;
+	}
+}
+
+void
+configure_terminals( int serial_cons )
+{
+	//struct stat statbuf;
+	char *tty;
+
+	switch (serial_cons) {
+	case 1:
+		strcpy( console, "/dev/ttyS0" );
+		break;
+	case 2:
+		strcpy( console, "/dev/ttyS1" );
+		break;
+	default:
+		tty = ttyname(0);
+		if (tty) {
+			strcpy( console, tty );
+			if (!strncmp( tty, "/dev/ttyS", 9 ))
+				serial_cons=1;
+		}
+		else
+			/* falls back to /dev/tty1 if an error occurs */
+			strcpy( console, default_console );
+	}
+	if (!first_terminal)
+		first_terminal = console;
+	if (serial_cons && !strncmp(term_ptr,"TERM=linux",10))
+		term_ptr = "TERM=vt100";
+}
diff --git a/init/reboot.c b/init/reboot.c
new file mode 100644
index 000000000..0388fbce7
--- /dev/null
+++ b/init/reboot.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+#include <signal.h>
+
+const char	reboot_usage[] = "reboot\n"
+"\n\t"
+"\treboot the system.\n";
+
+extern int
+reboot_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return kill(1, SIGUSR2);
+}
diff --git a/internal.h b/internal.h
new file mode 100644
index 000000000..e658d3b7d
--- /dev/null
+++ b/internal.h
@@ -0,0 +1,189 @@
+#ifndef	_INTERNAL_H_
+#define	_INTERNAL_H_
+
+#include "busybox.def.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+/* Some useful definitions */
+typedef int     BOOL;
+#define STDIN	0
+#define STDOUT	1
+#define FALSE   ((BOOL) 0)
+#define TRUE    ((BOOL) 1)
+
+#define PATH_LEN        1024
+#define BUF_SIZE        8192
+#define EXPAND_ALLOC    1024
+
+#define isBlank(ch)     (((ch) == ' ') || ((ch) == '\t'))
+#define isDecimal(ch)   (((ch) >= '0') && ((ch) <= '9'))
+#define isOctal(ch)     (((ch) >= '0') && ((ch) <= '7'))
+#define isWildCard(ch)  (((ch) == '*') || ((ch) == '?') || ((ch) == '['))
+
+
+
+struct FileInfo {
+	unsigned int	complainInPostProcess:1;
+	unsigned int	changeUserID:1;
+	unsigned int	changeGroupID:1;
+	unsigned int	changeMode:1;
+	unsigned int	create:1;
+	unsigned int	force:1;
+	unsigned int	recursive:1;
+	unsigned int	processDirectoriesAfterTheirContents;
+	unsigned int	makeParentDirectories:1;
+	unsigned int	didOperation:1;
+	unsigned int	isSymbolicLink:1;
+	unsigned int	makeSymbolicLink:1;
+	unsigned int	dyadic:1;
+	const char*	source;
+	const char*	destination;
+	int				directoryLength;
+	uid_t			userID;
+	gid_t			groupID;
+	mode_t			andWithMode;
+	mode_t			orWithMode;
+	struct stat		stat;
+	const struct Applet *
+					applet;
+};
+
+struct Applet {
+	const	char*	name;
+	int	(*main)(int argc, char** argv);
+};
+
+extern void	name_and_error(const char*);
+extern int	is_a_directory(const char*);
+extern char*	join_paths(char *, const char *, const char *);
+
+extern int	descend(
+		 struct FileInfo *o
+		,int 		(*function)(const struct FileInfo * i));
+
+extern struct mntent *
+		findMountPoint(const char*, const char *);
+
+extern void usage(const char*);
+extern int busybox_main(int argc, char** argv);
+extern int block_device_main(int argc, char** argv);
+extern int cat_more_main(int argc, char** argv);
+extern int chgrp_main(int argc, char** argv);
+extern int chmod_main(int argc, char** argv);
+extern int chown_main(int argc, char** argv);
+extern int chroot_main(int argc, char** argv);
+extern int clear_main(int argc, char** argv);
+extern int date_main(int argc, char** argv);
+extern int dd_main(int argc, char** argv);
+extern int df_main(int argc, char** argv);
+extern int dmesg_main(int argc, char** argv);
+extern int dyadic_main(int argc, char** argv);
+extern int false_main(int argc, char** argv);
+extern int fdisk_main(int argc, char** argv);
+extern int find_main(int argc, char** argv);
+extern int grep_main(int argc, char** argv);
+extern int halt_main(int argc, char** argv);
+extern int init_main(int argc, char** argv);
+extern int kill_main(int argc, char** argv);
+extern int length_main(int argc, char** argv);
+extern int ln_main(int argc, char** argv);
+extern int loadkmap_main(int argc, char** argv);
+extern int losetup_main(int argc, char** argv);
+extern int ls_main(int argc, char** argv);
+extern int makedevs_main(int argc, char** argv);
+extern int math_main(int argc, char** argv);
+extern int mknod_main(int argc, char** argv);
+extern int mkswap_main(int argc, char** argv);
+extern int mnc_main(int argc, char** argv);
+extern int monadic_main(int argc, char** argv);
+extern int mount_main(int argc, char** argv);
+extern int mt_main(int argc, char** argv);
+extern int printf_main(int argc, char** argv);
+extern int pwd_main(int argc, char** argv);
+extern int reboot_main(int argc, char** argv);
+extern int rm_main(int argc, char** argv);
+extern int scan_partitions_main(int argc, char** argv);
+extern int sh_main(int argc, char** argv);
+extern int sleep_main(int argc, char** argv);
+extern int tar_main(int argc, char** argv);
+extern int sync_main(int argc, char** argv);
+extern int tput_main(int argc, char** argv);
+extern int true_main(int argc, char** argv);
+extern int tryopen_main(int argc, char** argv);
+extern int umount_main(int argc, char** argv);
+extern int update_main(int argc, char** argv);
+extern int zcat_main(int argc, char** argv);
+extern int gzip_main(int argc, char** argv);
+
+extern int
+parse_mode(
+ const char*	s
+,mode_t *		or
+,mode_t *		and
+,int *			group_execute);
+
+extern int		parse_user_name(const char* string, struct FileInfo * i);
+
+extern const char	block_device_usage[];
+extern const char	chgrp_usage[];
+extern const char	chmod_usage[];
+extern const char	chown_usage[];
+extern const char	chroot_usage[];
+extern const char	clear_usage[];
+extern const char	cp_usage[];
+extern const char	date_usage[];
+extern const char	dd_usage[];
+extern const char	df_usage[];
+extern const char	dmesg_usage[];
+extern const char	dutmp_usage[];
+extern const char	false_usage[];
+extern const char	fdflush_usage[];
+extern const char	find_usage[];
+extern const char	grep_usage[];
+extern const char	halt_usage[];
+extern const char	init_usage[];
+extern const char	kill_usage[];
+extern const char	length_usage[];
+extern const char	ln_usage[];
+extern const char	loadkmap_usage[];
+extern const char	losetup_usage[];
+extern const char	ls_usage[];
+extern const char	math_usage[];
+extern const char	makedevs_usage[];
+extern const char	mkdir_usage[];
+extern const char	mknod_usage[];
+extern const char	mkswap_usage[];
+extern const char	mnc_usage[];
+extern const char	more_usage[];
+extern const char	mount_usage[];
+extern const char	mt_usage[];
+extern const char	mv_usage[];
+extern const char	printf_usage[];
+extern const char	pwd_usage[];
+extern const char	reboot_usage[];
+extern const char	rm_usage[];
+extern const char	rmdir_usage[];
+extern const char	scan_partitions_usage[];
+extern const char	sleep_usage[];
+extern const char	tar_usage[];
+extern const char	swapoff_usage[];
+extern const char	swapon_usage[];
+extern const char	sync_usage[];
+extern const char	touch_usage[];
+extern const char	tput_usage[];
+extern const char	true_usage[];
+extern const char	tryopen_usage[];
+extern const char	umount_usage[];
+extern const char	update_usage[];
+extern const char	zcat_usage[];
+extern const char	gzip_usage[];
+
+
+
+#endif
+
diff --git a/kill.c b/kill.c
new file mode 100644
index 000000000..da025fafc
--- /dev/null
+++ b/kill.c
@@ -0,0 +1,140 @@
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+
+const char	kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
+
+struct signal_name {
+	const char *	name;
+	int				number;
+};
+
+const struct signal_name signames[] = {
+	{ "HUP",	SIGHUP },
+	{ "INT",	SIGINT },
+	{ "QUIT",	SIGQUIT },
+	{ "ILL",	SIGILL },
+	{ "TRAP",	SIGTRAP },
+	{ "ABRT",	SIGABRT },
+#ifndef __alpha__
+	{ "IOT",	SIGIOT },
+#endif
+#if defined(sparc) || defined(__alpha__)
+	{ "EMT",        SIGEMT },
+#else
+	{ "BUS",	SIGBUS },
+#endif
+	{ "FPE",	SIGFPE },
+	{ "KILL",	SIGKILL },
+#if defined(sparc) || defined(__alpha__)
+	{ "BUS",        SIGBUS },
+#else
+	{ "USR1",	SIGUSR1 },
+#endif
+	{ "SEGV",	SIGSEGV },
+#if defined(sparc) || defined(__alpha__)
+	{ "SYS",        SIGSYS },
+#else
+	{ "USR2",	SIGUSR2 },
+#endif
+	{ "PIPE",	SIGPIPE },
+	{ "ALRM",	SIGALRM },
+	{ "TERM",	SIGTERM },
+#if defined(sparc) || defined(__alpha__)
+	{ "URG",        SIGURG },
+	{ "STOP",       SIGSTOP },
+	{ "TSTP",       SIGTSTP },
+	{ "CONT",       SIGCONT },
+	{ "CHLD",       SIGCHLD },
+	{ "TTIN",       SIGTTIN },
+	{ "TTOU",       SIGTTOU },
+	{ "IO",         SIGIO },
+# ifndef __alpha__
+	{ "POLL",       SIGIO },
+# endif
+	{ "XCPU",       SIGXCPU },
+	{ "XFSZ",       SIGXFSZ },
+	{ "VTALRM",     SIGVTALRM },
+	{ "PROF",       SIGPROF },
+	{ "WINCH",      SIGWINCH },
+# ifdef __alpha__
+	{ "INFO",       SIGINFO },
+# else
+	{ "LOST",       SIGLOST },
+# endif
+	{ "USR1",       SIGUSR1 },
+	{ "USR2",       SIGUSR2 },
+#else
+	{ "STKFLT",	SIGSTKFLT },
+	{ "CHLD",	SIGCHLD },
+	{ "CONT",	SIGCONT },
+	{ "STOP",	SIGSTOP },
+	{ "TSTP",	SIGTSTP },
+	{ "TTIN",	SIGTTIN },
+	{ "TTOU",	SIGTTOU },
+	{ "URG",	SIGURG },
+	{ "XCPU",	SIGXCPU },
+	{ "XFSZ",	SIGXFSZ },
+	{ "VTALRM",	SIGVTALRM },
+	{ "PROF",	SIGPROF },
+	{ "WINCH",	SIGWINCH },
+	{ "IO",		SIGIO },
+	{ "POLL",	SIGPOLL },
+	{ "PWR",	SIGPWR },
+	{ "UNUSED",	SIGUNUSED },
+#endif
+	{ 0,		0		}
+};
+
+extern int
+kill_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int	had_error = 0;
+	int	sig = SIGTERM;
+	if ( argv[1][0] == '-' ) {
+		if ( argv[1][1] >= '0' && argv[1][1] <= '9' ) {
+			sig = atoi(&argv[1][1]);
+			if ( sig < 0 || sig >= NSIG ) {
+				usage(kill_usage);
+				exit(-1);
+			}
+		}
+		else {
+			const struct signal_name *	s = signames;
+			for ( ; ; ) {
+				if ( strcmp(s->name, &argv[1][1]) == 0 ) {
+					sig = s->number;
+					break;
+				}
+				s++;
+				if ( s->name == 0 ) {
+					usage(kill_usage);
+					exit(-1);
+				}
+			}
+		}
+		argv++;
+		argc--;
+
+	}
+	while ( argc > 1 ) {
+		int	pid;
+		if ( argv[1][0] < '0' || argv[1][0] > '9' ) {
+			usage(kill_usage);
+			exit(-1);
+		}
+		pid = atoi(argv[1]);
+		if ( kill(pid, sig) != 0 ) {
+			had_error = 1;
+			perror(argv[1]);
+		}
+		argv++;
+		argc--;
+	}
+	if ( had_error )
+		return -1;
+	else
+		return 0;
+}
diff --git a/length.c b/length.c
new file mode 100644
index 000000000..284bbfdf9
--- /dev/null
+++ b/length.c
@@ -0,0 +1,13 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+const char			length_usage[] = "length string";
+
+int
+length_main(struct FileInfo * i, int argc, char * * argv)
+{
+	printf("%d\n", strlen(argv[1]));
+	return 0;
+}
diff --git a/ln.c b/ln.c
new file mode 100644
index 000000000..3e87b579e
--- /dev/null
+++ b/ln.c
@@ -0,0 +1,52 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <errno.h>
+
+const char	ln_usage[] = "ln [-s] [-f] original-name additional-name\n"
+"\n"
+"\tAdd a new name that refers to the same file as \"original-name\"\n"
+"\n"
+"\t-s:\tUse a \"symbolic\" link, instead of a \"hard\" link.\n"
+"\t-f:\tRemove existing destination files.\n";
+
+int
+ln_fn(const struct FileInfo * i)
+{
+	int				status = 0;
+	char			d[PATH_MAX];
+	const char *	destination = i->destination;
+
+	if ( !i->makeSymbolicLink && (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
+		fprintf(stderr, "Please use \"ln -s\" to link directories.\n");
+		return 1;
+	}
+
+	/*
+	 * If the destination is a directory, create a file within it.
+	 */
+	if ( is_a_directory(i->destination) ) {
+			destination = join_paths(
+			 d
+			,i->destination
+			,&i->source[i->directoryLength]);
+	}
+
+	if ( i->force )
+		status = ( unlink(destination) && errno != ENOENT );
+
+	if ( status == 0 ) {
+		if ( i->makeSymbolicLink )
+			status = symlink(i->source, destination);
+		else
+			status = link(i->source, destination);
+	}
+
+	if ( status != 0 ) {
+		name_and_error(destination);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/loadkmap.c b/loadkmap.c
new file mode 100644
index 000000000..0f092d193
--- /dev/null
+++ b/loadkmap.c
@@ -0,0 +1,68 @@
+#include "internal.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <linux/kd.h>
+#include <linux/keyboard.h>
+#include <sys/ioctl.h>
+
+
+const char			loadkmap_usage[] = "loadkmap\n"
+"\n"
+"\tLoad a binary keyboard translation table from standard input.\n"
+"\n";
+
+
+int
+loadkmap_main(struct FileInfo * info, int argc, char * * argv)
+{ 
+    struct kbentry ke;
+    u_short *ibuff;
+    int i,j,fd,readsz,pos,ibuffsz=NR_KEYS * sizeof(u_short);
+    char flags[MAX_NR_KEYMAPS],magic[]="bkeymap",buff[7];
+
+    fd = open("/dev/tty0", O_RDWR);
+    if (fd < 0) {
+	fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
+	return 1;
+    }
+
+    read(0,buff,7);
+    if (0 != strncmp(buff,magic,7)) {
+	fprintf(stderr, "This is not a valid binary keymap.\n");
+	return 1;
+    }
+   
+    if ( MAX_NR_KEYMAPS != read(0,flags,MAX_NR_KEYMAPS) ) {
+	fprintf(stderr, "Error reading keymap flags: %s\n", strerror(errno));
+	return 1;
+    }
+
+    ibuff=(u_short *) malloc(ibuffsz);
+    if (!ibuff) {
+	fprintf(stderr, "Out of memory.\n");
+	return 1;
+    }
+
+    for(i=0; i<MAX_NR_KEYMAPS; i++) {
+	if (flags[i]==1){
+	    pos=0;
+	    while (pos < ibuffsz) {
+		if ( (readsz = read(0,ibuff+pos,ibuffsz-pos)) < 0 ) {
+		    fprintf(stderr, "Error reading keymap: %s\n", 
+			strerror(errno));
+		    return 1;
+	        }
+		pos += readsz;
+	    }
+	    for(j=0; j<NR_KEYS; j++) {
+		ke.kb_index = j;
+		ke.kb_table = i;
+		ke.kb_value = ibuff[j];
+		ioctl(fd, KDSKBENT, &ke);
+	    }
+	}
+    }
+    close (fd);
+    return 0;
+}
diff --git a/losetup.c b/losetup.c
new file mode 100644
index 000000000..2908dbc88
--- /dev/null
+++ b/losetup.c
@@ -0,0 +1,190 @@
+/*
+ * losetup.c - setup and control loop devices
+ */
+
+
+#include "internal.h"
+
+const char	losetup_usage[] = "losetup\n"
+"\n"
+"\tlosetup loop_device				give info\n"
+"\tlosetup -d loop_device				delete\n"
+"\tlosetup [ -o offset ] loop_device file		setup\n";
+
+/* from mount-2.6d */
+
+/*
+ * losetup.c - setup and control loop devices
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <linux/fs.h>
+/* #include "loop.h" */
+
+/*
+ * include/linux/loop.h
+ *
+ * Written by Theodore Ts'o, 3/29/93.
+ *
+ * Copyright 1993 by Theodore Ts'o.  Redistribution of this file is
+ * permitted under the GNU Public License.
+ */
+
+#define LO_NAME_SIZE	64
+#define LO_KEY_SIZE	32
+       
+struct loop_info {
+	int		lo_number;	/* ioctl r/o */
+	dev_t		lo_device; 	/* ioctl r/o */
+	unsigned long	lo_inode; 	/* ioctl r/o */
+	dev_t		lo_rdevice; 	/* ioctl r/o */
+	int		lo_offset;
+	int		lo_encrypt_type;
+	int		lo_encrypt_key_size; 	/* ioctl w/o */
+	int		lo_flags;	/* ioctl r/o */
+	char		lo_name[LO_NAME_SIZE];
+	unsigned char	lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
+	unsigned long	lo_init[2];
+	char		reserved[4];
+};
+
+/*
+ * IOCTL commands --- we will commandeer 0x4C ('L')
+ */
+
+#define LOOP_SET_FD	0x4C00
+#define LOOP_CLR_FD	0x4C01
+#define LOOP_SET_STATUS	0x4C02
+#define LOOP_GET_STATUS	0x4C03
+
+/* #include "lomount.h" */
+
+extern int set_loop (const char *, const char *, int, int *);
+extern int del_loop (const char *);
+
+static void show_loop(const char *device)
+{
+	struct	loop_info	loopinfo;
+	int			fd;
+	
+	if ((fd = open(device, O_RDWR)) < 0) {
+		perror(device);
+		return;
+	}
+	if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) < 0) {
+		perror("Cannot get loop info");
+		close(fd);
+		return;
+	}
+	printf("%s: [%04x]:%ld (%s) offset %d\n",
+	       device, (unsigned int)loopinfo.lo_device, loopinfo.lo_inode,
+	       loopinfo.lo_name, loopinfo.lo_offset);
+	close(fd);
+}
+
+
+int set_loop(const char *device, const char *file, int offset, int *loopro)
+{
+	struct loop_info loopinfo;
+	int	fd, ffd, mode;
+	
+	mode = *loopro ? O_RDONLY : O_RDWR;
+	if ((ffd = open (file, mode)) < 0 && !*loopro
+	    && (errno != EROFS || (ffd = open (file, mode = O_RDONLY)) < 0)) {
+	  perror (file);
+	  return 1;
+	}
+	if ((fd = open (device, mode)) < 0) {
+	  close(ffd);
+	  perror (device);
+	  return 1;
+	}
+	*loopro = (mode == O_RDONLY);
+
+	memset(&loopinfo, 0, sizeof(loopinfo));
+	strncpy(loopinfo.lo_name, file, LO_NAME_SIZE);
+	loopinfo.lo_name[LO_NAME_SIZE-1] = 0;
+
+	loopinfo.lo_offset = offset;
+
+	loopinfo.lo_encrypt_key_size = 0;
+	if (ioctl(fd, LOOP_SET_FD, ffd) < 0) {
+		perror("ioctl: LOOP_SET_FD");
+		exit(1);
+	}
+	if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) {
+		(void) ioctl(fd, LOOP_CLR_FD, 0);
+		perror("ioctl: LOOP_SET_STATUS");
+		exit(1);
+	}
+	close(fd);
+	close(ffd);
+	return 0;
+}
+
+int del_loop(const char *device)
+{
+	int fd;
+
+	if ((fd = open(device, O_RDONLY)) < 0) {
+		perror(device);
+		exit(1);
+	}
+	if (ioctl(fd, LOOP_CLR_FD, 0) < 0) {
+		perror("ioctl: LOOP_CLR_FD");
+		exit(1);
+	}
+	close(fd);
+	return(0);
+}
+
+
+static int losetup_usage_fn(void)
+{
+	fprintf(stderr, losetup_usage);
+	exit(1);
+}
+
+int losetup_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char *offset;
+	int delete,off,c;
+	int ro = 0;
+
+	delete = off = 0;
+	offset = NULL;
+	while ((c = getopt(argc,argv,"do:")) != EOF) {
+		switch (c) {
+			case 'd':
+				delete = 1;
+				break;
+			case 'o':
+				offset = optarg;
+				break;
+			default:
+				losetup_usage_fn();
+		}
+	}
+	if (argc == 1) losetup_usage_fn();
+	if ((delete && (argc != optind+1 || offset)) ||
+	    (!delete && (argc < optind+1 || argc > optind+2)))
+		losetup_usage_fn();
+	if (argc == optind+1)
+		if (delete)
+			del_loop(argv[optind]);
+		else
+			show_loop(argv[optind]);
+	else {
+		if (offset && sscanf(offset,"%d",&off) != 1)
+			losetup_usage_fn();
+		set_loop(argv[optind],argv[optind+1],off,&ro);
+	}
+	return 0;
+}
diff --git a/ls.c b/ls.c
new file mode 100644
index 000000000..2566beea0
--- /dev/null
+++ b/ls.c
@@ -0,0 +1,542 @@
+#include "internal.h"
+/*
+ * tiny-ls.c version 0.1.0: A minimalist 'ls'
+ * Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
+ * 
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * To achieve a small memory footprint, this version of 'ls' doesn't do any
+ * file sorting, and only has the most essential command line switches
+ * (i.e. the ones I couldn't live without :-) All features which involve
+ * linking in substantial chunks of libc can be disabled.
+ *
+ * Although I don't really want to add new features to this program to
+ * keep it small, I *am* interested to receive bug fixes and ways to make
+ * it more portable.
+ *
+ * KNOWN BUGS:
+ * 1. messy output if you mix files and directories on the command line
+ * 2. ls -l of a directory doesn't give "total <blocks>" header
+ * 3. ls of a symlink to a directory doesn't list directory contents
+ * 4. hidden files can make column width too large
+ * NON-OPTIMAL BEHAVIOUR:
+ * 1. autowidth reads directories twice
+ * 2. if you do a short directory listing without filetype characters
+ *    appended, there's no need to stat each one
+ * PORTABILITY:
+ * 1. requires lstat (BSD) - how do you do it without?
+ */
+
+#define FEATURE_USERNAME	/* show username/groupnames (libc6 uses NSS) */
+#define FEATURE_TIMESTAMPS	/* show file timestamps */
+#define FEATURE_AUTOWIDTH	/* calculate terminal & column widths */
+#define FEATURE_FILETYPECHAR	/* enable -p and -F */
+
+#undef	OP_BUF_SIZE	1024	/* leave undefined for unbuffered output */
+
+#define TERMINAL_WIDTH	80	/* use 79 if your terminal has linefold bug */
+#define	COLUMN_WIDTH	14	/* default if AUTOWIDTH not defined */
+#define COLUMN_GAP	2	/* includes the file type char, if present */
+
+/************************************************************************/
+
+#define HAS_REWINDDIR
+
+#if 1 /* FIXME libc 6 */
+# include <linux/types.h> 
+#else
+# include <sys/types.h> 
+#endif
+#include <sys/stat.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdio.h>
+#ifdef FEATURE_USERNAME
+#include <pwd.h>
+#include <grp.h>
+#endif
+#ifdef FEATURE_TIMESTAMPS
+#include <time.h>
+#endif
+
+#define TYPEINDEX(mode)	(((mode) >> 12) & 0x0f)
+#define TYPECHAR(mode)	("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
+#ifdef FEATURE_FILETYPECHAR
+#define APPCHAR(mode)	("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
+#endif
+
+#ifndef MAJOR
+#define MAJOR(dev) (((dev)>>8)&0xff)
+#define MINOR(dev) ((dev)&0xff)
+#endif
+
+#define MODE1  "rwxrwxrwx"
+#define MODE0  "---------"
+#define SMODE1 "..s..s..t"
+#define SMODE0 "..S..S..T"
+
+/* The 9 mode bits to test */
+
+static const umode_t MBIT[] = {
+  S_IRUSR, S_IWUSR, S_IXUSR,
+  S_IRGRP, S_IWGRP, S_IXGRP,
+  S_IROTH, S_IWOTH, S_IXOTH
+};
+
+/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */
+
+static const umode_t SBIT[] = {
+  0, 0, S_ISUID,
+  0, 0, S_ISGID,
+  0, 0, S_ISVTX
+};
+
+#define FMT_AUTO	0
+#define FMT_LONG	1	/* one record per line, extended info */
+#define FMT_SINGLE	2	/* one record per line */
+#define FMT_ROWS	3	/* print across rows */
+#define FMT_COLUMNS	3	/* fill columns (same, since we don't sort) */
+
+#define TIME_MOD	0
+#define TIME_CHANGE	1
+#define TIME_ACCESS	2
+
+#define DISP_FTYPE	1	/* show character for file type */
+#define DISP_EXEC	2	/* show '*' if regular executable file */
+#define DISP_HIDDEN	4	/* show files starting . (except . and ..) */
+#define DISP_DOT	8	/* show . and .. */
+#define DISP_NUMERIC	16	/* numeric uid and gid */
+#define DISP_FULLTIME	32	/* show extended time display */
+#define DIR_NOLIST	64	/* show directory as itself, not contents */
+#define DISP_DIRNAME	128	/* show directory name (for internal use) */
+#define DIR_RECURSE	256	/* -R (not yet implemented) */
+
+static unsigned char	display_fmt = FMT_AUTO;
+static unsigned short	opts = 0;
+static unsigned short	column = 0;
+
+#ifdef FEATURE_AUTOWIDTH
+static unsigned short terminal_width = 0, column_width = 0;
+#else
+#define terminal_width	TERMINAL_WIDTH
+#define column_width	COLUMN_WIDTH
+#endif
+
+#ifdef FEATURE_TIMESTAMPS
+static unsigned char time_fmt = TIME_MOD;
+#endif
+
+#define wr(data,len) fwrite(data, 1, len, stdout)
+
+static void writenum(long val, short minwidth)
+{
+	char	scratch[20];
+
+	char *p = scratch + sizeof(scratch);
+	short len = 0;
+	short neg = (val < 0);
+	
+	if (neg) val = -val;
+	do
+		*--p = (val % 10) + '0', len++, val /= 10;
+	while (val);
+	if (neg)
+		*--p = '-', len++;
+	while (len < minwidth)
+		*--p = ' ', len++;
+	wr(p, len);
+	column += len;
+}
+
+static void newline(void)
+{
+	if (column > 0) {
+		wr("\n", 1);
+		column = 0;
+	}
+}
+
+static void tab(short col)
+{
+	static const char spaces[] = "                ";
+	#define nspaces ((sizeof spaces)-1)	/* null terminator! */
+	
+	short n = col - column;
+
+	if (n > 0) {
+		column = col;
+		while (n > nspaces) {
+			wr(spaces, nspaces);
+			n -= nspaces;
+		}
+		/* must be 1...(sizeof spaces) left */
+		wr(spaces, n);
+	}
+	#undef nspaces
+}
+
+#ifdef FEATURE_FILETYPECHAR
+static char append_char(umode_t mode)
+{
+	if (!(opts & DISP_FTYPE))
+		return '\0';
+	if ((opts & DISP_EXEC) && S_ISREG(mode) && (mode & (S_IXUSR|S_IXGRP|S_IXOTH)))
+		return '*';
+	return APPCHAR(mode);
+}
+#endif
+
+/**
+ **
+ ** Display a file or directory as a single item
+ ** (in either long or short format)
+ **
+ **/
+
+static void list_single(const char *name, struct stat *info)
+{
+	char scratch[20];
+	short len = strlen(name);
+#ifdef FEATURE_FILETYPECHAR
+	char append = append_char(info->st_mode);
+#endif
+	
+	if (display_fmt == FMT_LONG) {
+		umode_t mode = info->st_mode; 
+		int i;
+		
+		scratch[0] = TYPECHAR(mode);
+		for (i=0; i<9; i++)
+			if (mode & SBIT[i])
+				scratch[i+1] = (mode & MBIT[i])
+						? SMODE1[i]
+						: SMODE0[i];
+			else
+				scratch[i+1] = (mode & MBIT[i])
+						? MODE1[i]
+						: MODE0[i];
+		newline();
+		wr(scratch, 10);
+		column=10;
+		writenum((long)info->st_nlink,(short)4);
+		fputs(" ", stdout);
+#ifdef FEATURE_USERNAME
+		if (!(opts & DISP_NUMERIC)) {
+			struct passwd *pw = getpwuid(info->st_uid);
+			if (pw)
+				fputs(pw->pw_name, stdout);
+			else
+				writenum((long)info->st_uid,(short)0);
+		} else
+#endif
+		writenum((long)info->st_uid,(short)0);
+		tab(24);
+#ifdef FEATURE_USERNAME
+		if (!(opts & DISP_NUMERIC)) {
+			struct group *gr = getgrgid(info->st_gid);
+			if (gr)
+				fputs(gr->gr_name, stdout);
+			else
+				writenum((long)info->st_gid,(short)0);
+		} else
+#endif
+		writenum((long)info->st_gid,(short)0);
+		tab(33);
+		if (S_ISBLK(mode) || S_ISCHR(mode)) {
+			writenum((long)MAJOR(info->st_rdev),(short)3);
+			fputs(", ", stdout);
+			writenum((long)MINOR(info->st_rdev),(short)3);
+		}
+		else
+			writenum((long)info->st_size,(short)8);
+		fputs(" ", stdout);
+#ifdef FEATURE_TIMESTAMPS
+		{
+			time_t cal;
+			char *string;
+			
+			switch(time_fmt) {
+			case TIME_CHANGE:
+				cal=info->st_ctime; break;
+			case TIME_ACCESS:
+				cal=info->st_atime; break;
+			default:
+				cal=info->st_mtime; break;
+			}
+			string=ctime(&cal);
+			if (opts & DISP_FULLTIME)
+				wr(string,24);
+			else {
+				time_t age = time(NULL) - cal;
+				wr(string+4,7);	/* mmm_dd_ */
+				if(age < 3600L*24*365/2 && age > -15*60)
+					/* hh:mm if less than 6 months old */
+					wr(string+11,5);
+				else
+					/* _yyyy otherwise */
+					wr(string+19,5);
+			}
+			wr(" ", 1);
+		}
+#else
+		fputs("--- -- ----- ", stdout);
+#endif
+		wr(name, len);
+		if (S_ISLNK(mode)) {
+			wr(" -> ", 4);
+			len = readlink(name, scratch, sizeof scratch);
+			if (len > 0) fwrite(scratch, 1, len, stdout);
+#ifdef FEATURE_FILETYPECHAR
+			/* show type of destination */
+			if (opts & DISP_FTYPE) {
+				if (!stat(name, info)) {
+					append = append_char(info->st_mode);
+					if (append)
+						fputc(append, stdout);
+				}
+			}
+#endif
+		}
+#ifdef FEATURE_FILETYPECHAR
+		else if (append)
+			wr(&append, 1);
+#endif
+	} else {
+		static short nexttab = 0;
+		
+		/* sort out column alignment */
+		if (column == 0)
+			; /* nothing to do */
+		else if (display_fmt == FMT_SINGLE)
+			newline();
+		else {
+			if (nexttab + column_width > terminal_width
+#ifndef FEATURE_AUTOWIDTH
+			|| nexttab + len >= terminal_width
+#endif
+			)
+				newline();
+			else
+				tab(nexttab);
+		}
+		/* work out where next column starts */
+#ifdef FEATURE_AUTOWIDTH
+		/* we know the calculated width is big enough */
+		nexttab = column + column_width + COLUMN_GAP;
+#else
+		/* might cover more than one fixed-width column */
+		nexttab = column;
+		do
+			nexttab += column_width + COLUMN_GAP;
+		while (nexttab < (column + len + COLUMN_GAP));
+#endif
+		/* now write the data */
+		wr(name, len);
+		column = column + len;
+#ifdef FEATURE_FILETYPECHAR
+		if (append)
+			wr(&append, 1), column++;
+#endif
+	}
+}
+
+/**
+ **
+ ** List the given file or directory, expanding a directory
+ ** to show its contents if required
+ **
+ **/
+
+static int list_item(const char *name)
+{
+	struct stat info;
+	DIR *dir;
+	struct dirent *entry;
+	char fullname[MAXNAMLEN+1], *fnend;
+	
+	if (lstat(name, &info))
+		goto listerr;
+	
+	if (!S_ISDIR(info.st_mode) || 
+	    (opts & DIR_NOLIST)) {
+		list_single(name, &info);
+		return 0;
+	}
+
+	/* Otherwise, it's a directory we want to list the contents of */
+
+	if (opts & DISP_DIRNAME) {   /* identify the directory */
+		if (column)
+			wr("\n\n", 2), column = 0;
+		wr(name, strlen(name));
+		wr(":\n", 2);
+	}
+	
+	dir = opendir(name);
+	if (!dir) goto listerr;
+#ifdef FEATURE_AUTOWIDTH
+	column_width = 0;
+	while ((entry = readdir(dir)) != NULL) {
+		short w = strlen(entry->d_name);
+		if (column_width < w)
+			column_width = w;
+	}
+#ifdef HAS_REWINDDIR
+	rewinddir(dir);
+#else
+	closedir(dir);
+	dir = opendir(name);
+	if (!dir) goto listerr;
+#endif
+#endif
+
+	/* List the contents */
+	
+	strcpy(fullname,name);	/* *** ignore '.' by itself */
+	fnend=fullname+strlen(fullname);
+	if (fnend[-1] != '/')
+		*fnend++ = '/';
+	
+	while ((entry = readdir(dir)) != NULL) {
+		const char *en=entry->d_name;
+		if (en[0] == '.') {
+			if (!en[1] || (en[1] == '.' && !en[2])) { /* . or .. */
+				if (!(opts & DISP_DOT))
+					continue;
+			}
+			else if (!(opts & DISP_HIDDEN))
+				continue;
+		}
+		/* FIXME: avoid stat if not required */
+		strcpy(fnend, entry->d_name);
+		if (lstat(fullname, &info))
+			goto direrr; /* (shouldn't fail) */
+		list_single(entry->d_name, &info);
+	}
+	closedir(dir);
+	return 0;
+
+direrr:
+	closedir(dir);	
+listerr:
+	newline();
+	name_and_error(name);
+	return 1;
+}
+
+const char	ls_usage[] = "Usage: ls [-1a"
+#ifdef FEATURE_TIMESTAMPS
+	"c"
+#endif
+	"d"
+#ifdef FEATURE_TIMESTAMPS
+	"e"
+#endif
+	"ln"
+#ifdef FEATURE_FILETYPECHAR
+	"p"
+#endif
+#ifdef FEATURE_TIMESTAMPS
+	"u"
+#endif
+	"xAC"
+#ifdef FEATURE_FILETYPECHAR
+	"F"
+#endif
+#ifdef FEATURE_RECURSIVE
+	"R"
+#endif
+	"] [filenames...]\n";
+
+extern int
+ls_main(struct FileInfo * not_used, int argc, char * * argv)
+{
+	int argi=1, i;
+	
+	/* process options */
+	while (argi < argc && argv[argi][0] == '-') {
+		const char *p = &argv[argi][1];
+		
+		if (!*p) goto print_usage_message;	/* "-" by itself not allowed */
+		if (*p == '-') {
+			if (!p[1]) {	/* "--" forces end of options */
+				argi++;
+				break;
+			}
+			/* it's a long option name - we don't support them */
+			goto print_usage_message;
+		}
+		
+		while (*p)
+			switch (*p++) {
+			case 'l':	display_fmt = FMT_LONG; break;
+			case '1':	display_fmt = FMT_SINGLE; break;
+			case 'x':	display_fmt = FMT_ROWS; break;
+			case 'C':	display_fmt = FMT_COLUMNS; break;
+#ifdef FEATURE_FILETYPECHAR
+			case 'p':	opts |= DISP_FTYPE; break;
+			case 'F':	opts |= DISP_FTYPE|DISP_EXEC; break;
+#endif
+			case 'A':	opts |= DISP_HIDDEN; break;
+			case 'a':	opts |= DISP_HIDDEN|DISP_DOT; break;
+			case 'n':	opts |= DISP_NUMERIC; break;
+			case 'd':	opts |= DIR_NOLIST; break;
+#ifdef FEATURE_RECURSIVE
+			case 'R':	opts |= DIR_RECURSE; break;
+#endif
+#ifdef FEATURE_TIMESTAMPS
+			case 'u':	time_fmt = TIME_ACCESS; break;
+			case 'c':	time_fmt = TIME_CHANGE; break;
+			case 'e':	opts |= DISP_FULLTIME; break;
+#endif
+			default:	goto print_usage_message;
+			}
+		
+		argi++;
+	}
+
+	/* choose a display format */
+	if (display_fmt == FMT_AUTO)
+		display_fmt = isatty(STDOUT_FILENO) ? FMT_COLUMNS : FMT_SINGLE;
+	if (argi < argc - 1)
+		opts |= DISP_DIRNAME; /* 2 or more items? label directories */
+#ifdef FEATURE_AUTOWIDTH
+	/* could add a -w option and/or TIOCGWINSZ call */
+	if (terminal_width < 1) terminal_width = TERMINAL_WIDTH;
+	
+	for (i = argi; i < argc; i++) {
+		int len = strlen(argv[i]);
+		if (column_width < len)
+			column_width = len;
+	}
+#endif
+
+	/* process files specified, or current directory if none */
+	i=0;
+	if (argi == argc)
+		i = list_item(".");
+	while (argi < argc)
+		i |= list_item(argv[argi++]);
+	newline();
+	return i;
+
+print_usage_message:
+	usage(ls_usage);
+	return 1;
+}
diff --git a/makedevs.c b/makedevs.c
new file mode 100644
index 000000000..691236e29
--- /dev/null
+++ b/makedevs.c
@@ -0,0 +1,95 @@
+/*
+ * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
+ * 
+ * makedevs
+ * Make ranges of device files quickly. 
+ * known bugs: can't deal with alpha ranges
+ */
+ 
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+const char makedevs_usage[] = 
+"makedevs 0.01 -- Create an entire range of device files\n\n"
+"\tmakedevs /dev/ttyS c 4 64 0 63        (ttyS0-ttyS63)\n"
+"\tmakedevs /dev/hda b 3 0 0 8 s         (hda,hda1-hda8)\n";
+
+int
+makedevs_main(struct FileInfo * i, int argc, char * * argv)
+{
+
+const char *basedev = argv[1];
+const char *type = argv[2];
+int major = atoi(argv[3]);
+int Sminor = atoi(argv[4]);
+int S = atoi(argv[5]);
+int E = atoi(argv[6]);
+int sbase = argc == 8 ? 1 : 0;
+
+mode_t mode = 0;
+dev_t dev = 0;
+char devname[255];
+char buf[255];
+
+	switch (type[0]) {
+		case 'c':
+			mode = S_IFCHR; break;
+		case 'b':
+			mode = S_IFBLK; break;
+		case 'f':
+			mode = S_IFIFO; break;
+		default:
+			usage(makedevs_usage);
+			return 2;
+	}       
+	mode |= 0660; 
+
+	while ( S <= E ) {
+			
+		if (type[0] != 'f')
+			dev = (major << 8) | Sminor;
+		strcpy(devname, basedev);
+		
+		if (sbase == 0) {
+			sprintf(buf, "%d", S); 
+			strcat(devname, buf);
+		} else {
+			sbase = 0;
+		}
+				
+		if (mknod (devname, mode, dev))
+			printf("Failed to create: %s\n", devname);		
+	
+		S++; Sminor++;
+	}
+
+return 0;
+}
+
+/*
+And this is what this program replaces. The shell is too slow!
+
+makedev () {
+local basedev=$1; local S=$2; local E=$3
+local major=$4; local Sminor=$5; local type=$6
+local sbase=$7
+
+	if [ ! "$sbase" = "" ]; then
+		mknod "$basedev" $type $major $Sminor
+		S=`expr $S + 1`
+		Sminor=`expr $Sminor + 1`
+	fi
+
+	while [ $S -le $E ]; do
+		mknod "$basedev$S" $type $major $Sminor
+		S=`expr $S + 1`
+		Sminor=`expr $Sminor + 1`
+	done
+}
+*/
diff --git a/math.c b/math.c
new file mode 100644
index 000000000..5c1560a4e
--- /dev/null
+++ b/math.c
@@ -0,0 +1,149 @@
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <math.h>
+
+/* Tiny RPN calculator, because "expr" didn't give me bitwise operations. */
+
+const char			math_usage[] = "math expression ...";
+
+static double		stack[100];
+static unsigned int	pointer;
+
+static void
+push(double a)
+{
+	if ( pointer >= (sizeof(stack) / sizeof(*stack)) ) {
+		fprintf(stderr, "math: stack overflow\n");
+		exit(-1);
+	}
+	else
+		stack[pointer++] = a;
+}
+
+static double
+pop()
+{
+	if ( pointer == 0 ) {
+		fprintf(stderr, "math: stack underflow\n");
+		exit(-1);
+	}
+	return stack[--pointer];
+}
+
+static void
+add()
+{
+	push(pop() + pop());
+}
+
+static void
+sub()
+{
+	double	subtrahend = pop();
+
+	push(pop() - subtrahend);
+}
+
+static void
+mul()
+{
+	push(pop() * pop());
+}
+
+static void
+divide()
+{
+	double	divisor = pop();
+	push(pop() / divisor);
+}
+
+static void
+and()
+{
+	push((unsigned int)pop() & (unsigned int)pop());
+}
+
+static void
+or()
+{
+	push((unsigned int)pop() | (unsigned int)pop());
+}
+
+static void
+eor()
+{
+	push((unsigned int)pop() ^ (unsigned int)pop());
+}
+
+static void
+not()
+{
+	push(~(unsigned int)pop());
+}
+
+static void
+print()
+{
+	printf("%g\n", pop());
+}
+
+struct op {
+	const char *	name;
+	void			(*function)();
+};
+
+static const struct op	operators[] = {
+	{	"add",	add	},
+	{	"and",	and	},
+	{	"div",	divide	},
+	{	"eor",	eor	},
+	{	"mul",	mul	},
+	{	"not",	not	},
+	{	"or",	or	},
+	{	"sub",	sub	},
+	{	0,		0	}
+};
+
+static void
+stack_machine(const char * argument)
+{
+	char *				endPointer = 0;
+	double				d;
+	const struct op *	o = operators;
+
+	if ( argument == 0 ) {
+		print();
+		return;
+	}
+
+	d = strtod(argument, &endPointer);
+
+	if ( endPointer != argument ) {
+		push(d);
+		return;
+	}
+
+	while ( o->name != 0 ) {
+		if ( strcmp(o->name, argument) == 0 ) {
+			(*(o->function))();
+			return;
+		}
+		o++;
+	}
+	fprintf(stderr, "math: %s: syntax error.\n", argument);
+	exit(-1);
+}
+
+int
+math_main(struct FileInfo * i, int argc, char * * argv)
+{
+	while ( argc >= 2 ) {
+		stack_machine(argv[1]);
+		argv++;
+		argc--;
+	}
+	stack_machine(0);
+	return 0;
+}
diff --git a/miscutils/dutmp.c b/miscutils/dutmp.c
new file mode 100644
index 000000000..e92b6700f
--- /dev/null
+++ b/miscutils/dutmp.c
@@ -0,0 +1,47 @@
+/*
+ * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
+ * 
+ * dutmp
+ * Takes utmp formated file on stdin and dumps it's contents 
+ * out in colon delimited fields. Easy to 'cut' for shell based 
+ * versions of 'who', 'last', etc. IP Addr is output in hex, 
+ * little endian on x86.
+ * 
+ * made against libc6
+ */
+ 
+#include "internal.h"
+#include <stdio.h>
+#include <utmp.h>
+
+const char      dutmp_usage[] = "dutmp\n"
+"\n"
+"\tDump file or stdin utmp file format to stdout, pipe delimited.\n"
+"\tdutmp /var/run/utmp\n";
+
+extern int
+dutmp_fn(const struct FileInfo * i)
+{
+
+FILE *	f = stdin;
+struct utmp * ut = (struct utmp *) malloc(sizeof(struct utmp) );
+
+	if ( i ) 
+		if (! (f = fopen(i->source, "r"))) {
+			name_and_error(i->source);
+			return 1;
+		}
+
+	while (fread (ut, 1, sizeof(struct utmp), f)) {
+		//printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n", 
+		printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
+		ut->ut_type, ut->ut_pid, ut->ut_line,
+		ut->ut_id, ut->ut_user,	ut->ut_host,
+		ut->ut_exit.e_termination, ut->ut_exit.e_exit,
+		ut->ut_session,
+		ut->ut_tv.tv_sec, ut->ut_tv.tv_usec,
+		ut->ut_addr);
+	}
+
+return 0;	
+}
diff --git a/miscutils/makedevs.c b/miscutils/makedevs.c
new file mode 100644
index 000000000..691236e29
--- /dev/null
+++ b/miscutils/makedevs.c
@@ -0,0 +1,95 @@
+/*
+ * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
+ * 
+ * makedevs
+ * Make ranges of device files quickly. 
+ * known bugs: can't deal with alpha ranges
+ */
+ 
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+const char makedevs_usage[] = 
+"makedevs 0.01 -- Create an entire range of device files\n\n"
+"\tmakedevs /dev/ttyS c 4 64 0 63        (ttyS0-ttyS63)\n"
+"\tmakedevs /dev/hda b 3 0 0 8 s         (hda,hda1-hda8)\n";
+
+int
+makedevs_main(struct FileInfo * i, int argc, char * * argv)
+{
+
+const char *basedev = argv[1];
+const char *type = argv[2];
+int major = atoi(argv[3]);
+int Sminor = atoi(argv[4]);
+int S = atoi(argv[5]);
+int E = atoi(argv[6]);
+int sbase = argc == 8 ? 1 : 0;
+
+mode_t mode = 0;
+dev_t dev = 0;
+char devname[255];
+char buf[255];
+
+	switch (type[0]) {
+		case 'c':
+			mode = S_IFCHR; break;
+		case 'b':
+			mode = S_IFBLK; break;
+		case 'f':
+			mode = S_IFIFO; break;
+		default:
+			usage(makedevs_usage);
+			return 2;
+	}       
+	mode |= 0660; 
+
+	while ( S <= E ) {
+			
+		if (type[0] != 'f')
+			dev = (major << 8) | Sminor;
+		strcpy(devname, basedev);
+		
+		if (sbase == 0) {
+			sprintf(buf, "%d", S); 
+			strcat(devname, buf);
+		} else {
+			sbase = 0;
+		}
+				
+		if (mknod (devname, mode, dev))
+			printf("Failed to create: %s\n", devname);		
+	
+		S++; Sminor++;
+	}
+
+return 0;
+}
+
+/*
+And this is what this program replaces. The shell is too slow!
+
+makedev () {
+local basedev=$1; local S=$2; local E=$3
+local major=$4; local Sminor=$5; local type=$6
+local sbase=$7
+
+	if [ ! "$sbase" = "" ]; then
+		mknod "$basedev" $type $major $Sminor
+		S=`expr $S + 1`
+		Sminor=`expr $Sminor + 1`
+	fi
+
+	while [ $S -le $E ]; do
+		mknod "$basedev$S" $type $major $Sminor
+		S=`expr $S + 1`
+		Sminor=`expr $Sminor + 1`
+	done
+}
+*/
diff --git a/miscutils/mt.c b/miscutils/mt.c
new file mode 100644
index 000000000..7d75fbd3d
--- /dev/null
+++ b/miscutils/mt.c
@@ -0,0 +1,98 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/mtio.h>
+#include <sys/fcntl.h>
+
+const char	mt_usage[] = "mt [-f device] opcode value\n";
+
+struct mt_opcodes {
+	char *	name;
+	short	value;
+};
+
+/* missing: eod/seod, stoptions, stwrthreshold, densities */
+static const struct mt_opcodes	opcodes[] = {
+	{ "bsf",	MTBSF },
+	{ "bsfm",	MTBSFM },
+	{ "bsr",	MTBSR },
+	{ "bss",	MTBSS },
+	{ "datacompression",	MTCOMPRESSION },
+	{ "eom",	MTEOM },
+	{ "erase",	MTERASE },
+	{ "fsf",	MTFSF },
+	{ "fsfm",	MTFSFM },
+	{ "fsr",	MTFSR },
+	{ "fss",	MTFSS },
+	{ "load",	MTLOAD },
+	{ "lock",	MTLOCK },
+	{ "mkpart",	MTMKPART },
+	{ "nop",	MTNOP },
+	{ "offline",MTOFFL },
+	{ "rewoffline",MTOFFL },
+	{ "ras1",	MTRAS1 },
+	{ "ras2",	MTRAS2 },
+	{ "ras3",	MTRAS3 },
+	{ "reset",	MTRESET },
+	{ "retension",	MTRETEN },
+	{ "rew",	MTREW },
+	{ "seek",	MTSEEK },
+	{ "setblk",	MTSETBLK },
+	{ "setdensity",	MTSETDENSITY },
+	{ "drvbuffer",	MTSETDRVBUFFER },
+	{ "setpart",	MTSETPART },
+	{ "tell",	MTTELL },
+	{ "wset",	MTWSM },
+	{ "unload",	MTUNLOAD },
+	{ "unlock",	MTUNLOCK },
+	{ "eof",	MTWEOF },
+	{ "weof",	MTWEOF },
+	{ 0,			0 }
+};
+
+extern int
+mt_main(struct FileInfo * i, int argc, char * * argv)
+{
+	const char *				file = "/dev/tape";
+	const struct mt_opcodes *	code = opcodes;
+	struct mtop					op;
+	int							fd;
+	
+	if ( strcmp(argv[1], "-f") == 0 ) {
+		if ( argc < 4 ) {
+			usage(mt_usage);
+			return 1;
+		}
+		file = argv[2];
+		argv += 2;
+		argc -= 2;
+	}
+
+	while ( code->name != 0 ) {
+		if ( strcmp(code->name, argv[1]) == 0 )
+			break;
+		code++;
+	}
+
+	if ( code->name == 0 ) {
+		fprintf(stderr, "mt: unrecognized opcode %s.\n", argv[1]);
+		return 1;
+	}
+
+	op.mt_op = code->value;
+	if ( argc >= 3 )
+		op.mt_count = atoi(argv[2]); 
+	else
+		op.mt_count = 1; /* One, not zero, right? */
+
+	if ( (fd = open(file, O_RDONLY, 0)) < 0 ) {
+		name_and_error(file);
+		return 1;
+	}
+
+	if ( ioctl(fd, MTIOCTOP, &op) != 0 ) {
+		name_and_error(file);
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/miscutils/update.c b/miscutils/update.c
new file mode 100644
index 000000000..f3b7fc0c8
--- /dev/null
+++ b/miscutils/update.c
@@ -0,0 +1,48 @@
+#include "internal.h"
+#include <linux/unistd.h>
+
+const char	update_usage[] = "update\n"
+"\n"
+"\tFlush buffered data to the disk devices every 30 seconds.\n";
+
+#if defined(__GLIBC__)
+#include <sys/kdaemon.h>
+#else
+_syscall2(int, bdflush, int, func, int, data);
+#endif /* __GLIBC__ */
+
+extern int
+update_main(struct FileInfo * i, int argc, char * * argv)
+{
+	/*
+	 * Update is actually two daemons, bdflush and update.
+	 */
+	int	pid;
+
+	pid = fork();
+	if ( pid < 0 )
+		return pid;
+	else if ( pid == 0 ) {
+		/*
+		 * This is no longer necessary since 1.3.5x, but it will harmlessly
+		 * exit if that is the case.
+		 */
+		strcpy(argv[0], "bdflush (update)");
+		argv[1] = 0;
+		argv[2] = 0;
+		bdflush(1, 0);
+		_exit(0);
+	}
+	pid = fork();
+	if ( pid < 0 )
+		return pid;
+	else if ( pid == 0 ) {
+		argv[0] = "update";
+		for ( ; ; ) {
+			sync();
+			sleep(30);
+		}
+	}
+
+	return 0;
+}
diff --git a/mkdir.c b/mkdir.c
new file mode 100644
index 000000000..8f1fa04db
--- /dev/null
+++ b/mkdir.c
@@ -0,0 +1,58 @@
+#include "internal.h"
+#include <errno.h>
+#include <sys/param.h>
+
+const char mkdir_usage[] = "mkdir [-m mode] directory [directory ...]\n"
+"\tCreate directories.\n"
+"\n"
+"\t-m mode:\tSpecifiy the mode for the new directory\n"
+"\t\tunder the argument directory.";
+
+/*make directories skipping the last part of the path. Used here and by untar*/
+int mkdir_until(const char *fpath, const struct FileInfo * fi)
+{
+	char    path[PATH_MAX];
+	char *  s = path;
+
+	strcpy(path, fpath);
+	if ( s[0] == '\0' && s[1] == '\0' ) {
+		usage(mkdir_usage);
+		return 1;
+	}
+	s++;
+	while ( *s != '\0' ) {
+		if ( *s == '/' ) {
+			int	status;
+
+			*s = '\0';
+			status = mkdir(path, (fi?fi->orWithMode:0700) );
+			*s = '/';
+
+			if ( status != 0 ) {
+				if ( errno != EEXIST ) {
+					name_and_error(fpath);
+					return 1;
+				}
+			}
+
+		}
+		s++;
+	}
+	return 0;
+}
+
+int
+mkdir_fn(const struct FileInfo * i)
+{
+	if ( i->makeParentDirectories ) {
+		if(mkdir_until(i->source, i)) return 1;
+	}
+
+	if ( mkdir(i->source, i->orWithMode) != 0 && errno != EEXIST ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
+
diff --git a/mknod.c b/mknod.c
new file mode 100644
index 000000000..b18394bec
--- /dev/null
+++ b/mknod.c
@@ -0,0 +1,52 @@
+#include "internal.h"
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+const char mknod_usage[] = "mknod file b|c|u|p major minor\n"
+"\tMake special files.\n"
+"\n"
+"\tb:\tMake a block (buffered) device.\n"
+"\tc or u:\tMake a character (un-buffered) device.\n"
+"\tp:\tMake a named pipe. Major and minor are ignored for named pipes.\n";
+
+int
+mknod_main(struct FileInfo * i, int argc, char * * argv)
+{
+	mode_t	mode = 0;
+	dev_t	dev = 0;
+
+	switch(argv[2][0]) {
+	case 'c':
+	case 'u':
+		mode = S_IFCHR;
+		break;
+	case 'b':
+		mode = S_IFBLK;
+		break;
+	case 'p':
+		mode = S_IFIFO;
+		break;
+	default:
+		usage(mknod_usage);
+		return 1;
+	}
+
+	if ( mode == S_IFCHR || mode == S_IFBLK ) {
+		dev = (atoi(argv[3]) << 8) | atoi(argv[4]);
+		if ( argc != 5 ) {
+			usage(mknod_usage);
+			return 1;
+		}
+	}
+
+	mode |= 0666;
+
+	if ( mknod(argv[1], mode, dev) != 0 ) {
+		name_and_error(argv[1]);
+		return 1;
+	}
+	return 0;
+}
diff --git a/mkswap.c b/mkswap.c
new file mode 100644
index 000000000..f797d1395
--- /dev/null
+++ b/mkswap.c
@@ -0,0 +1,253 @@
+#include "internal.h"
+/*
+ * mkswap.c - set up a linux swap device
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * 20.12.91  -	time began. Got VM working yesterday by doing this by hand.
+ *
+ * Usage: mkswap [-c] device [size-in-blocks]
+ *
+ *	-c for readablility checking (use it unless you are SURE!)
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-).
+ *
+ * Patches from jaggy@purplet.demon.co.uk (Mike Jagdis) to make the
+ * size-in-blocks parameter optional added Wed Feb  8 10:33:43 1995.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <asm/page.h>
+#include <linux/fs.h>
+
+#ifndef __linux__
+# define volatile
+#endif
+
+#define TEST_BUFFER_PAGES 8
+
+const char	mkswap_usage[] = "mkswap [-c] partition [block-count]\n"
+"\n"
+"\tPrepare a disk partition to be used as a swap partition.\n"
+"\tThe default block count is the size of the entire partition.\n"
+"\n"
+"\t-c:\tCheck for read-ability.\n"
+"\tblock-count\tUse only this many blocks.\n";
+
+static const char * program_name = "mkswap";
+static const char * device_name = NULL;
+static int DEV = -1;
+static long PAGES = 0;
+static int do_check = 0;
+static int badpages = 0;
+
+
+static long bit_test_and_set (unsigned int *addr, unsigned int nr)
+{
+	unsigned int r, m;
+
+	addr += nr / (8 * sizeof(int));
+	r = *addr;
+	m = 1 << (nr & (8 * sizeof(int) - 1));
+	*addr = r | m;
+	return (r & m) != 0;
+}
+
+static int bit_test_and_clear (unsigned int *addr, unsigned int nr)
+{
+	unsigned int r, m;
+
+	addr += nr / (8 * sizeof(int));
+	r = *addr;
+	m = 1 << (nr & (8 * sizeof(int) - 1));
+	*addr = r & ~m;
+	return (r & m) != 0;
+}
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string)
+{
+	fprintf(stderr,fmt_string,program_name,device_name);
+	exit(1);
+}
+
+#define die(str) fatal_error("%s: " str "\n")
+
+static void check_blocks(int * signature_page)
+{
+	unsigned int current_page;
+	int do_seek = 1;
+	char buffer[PAGE_SIZE];
+
+	current_page = 0;
+	while (current_page < PAGES) {
+		if (!do_check) {
+			bit_test_and_set(signature_page,current_page++);
+			continue;
+		} else {
+			printf("\r%d", current_page);
+		}
+		if (do_seek && lseek(DEV,current_page*PAGE_SIZE,SEEK_SET) !=
+		current_page*PAGE_SIZE)
+			die("seek failed in check_blocks");
+		if ( (do_seek = (PAGE_SIZE != read(DEV, buffer, PAGE_SIZE))) ) {
+			bit_test_and_clear(signature_page,current_page++);
+			badpages++;
+			continue;
+		}
+		bit_test_and_set(signature_page,current_page++);
+	}
+	if (do_check)
+		printf("\n");
+	if (badpages)
+		printf("%d bad page%s\n",badpages,(badpages>1)?"s":"");
+}
+
+static long valid_offset (int fd, int offset)
+{
+	char ch;
+
+	if (lseek (fd, offset, 0) < 0)
+		return 0;
+	if (read (fd, &ch, 1) < 1)
+		return 0;
+	return 1;
+}
+
+static int count_blocks (int fd)
+{
+	int high, low;
+
+	low = 0;
+	for (high = 1; valid_offset (fd, high); high *= 2)
+		low = high;
+	while (low < high - 1)
+	{
+		const int mid = (low + high) / 2;
+
+		if (valid_offset (fd, mid))
+			low = mid;
+		else
+			high = mid;
+	}
+	valid_offset (fd, 0);
+	return (low + 1);
+}
+
+static int get_size(const char  *file)
+{
+	int	fd;
+	int	size;
+
+	fd = open(file, O_RDWR);
+	if (fd < 0) {
+		perror(file);
+		exit(1);
+	}
+	if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+		close(fd);
+		return (size * 512);
+	}
+		
+	size = count_blocks(fd);
+	close(fd);
+	return size;
+}
+
+int
+mkswap(char *device_name, int pages, int check)
+  {
+	struct stat statbuf;
+	int goodpages;
+	int signature_page[PAGE_SIZE/sizeof(int)];
+
+	PAGES = pages;
+	do_check = check;
+
+	memset(signature_page,0,PAGE_SIZE);
+
+	if (device_name && !PAGES) {
+		PAGES = get_size(device_name) / PAGE_SIZE;
+	}
+	if (!device_name || PAGES<10) {
+		fprintf(stderr,
+			"%s: error: swap area needs to be at least %ldkB\n",
+			program_name, 10 * PAGE_SIZE / 1024);
+		/*		usage(mkswap_usage); */
+		exit(1);
+	}
+	if (PAGES > 8 * (PAGE_SIZE - 10)) {
+	        PAGES = 8 * (PAGE_SIZE - 10);
+		fprintf(stderr, "%s: warning: truncating swap area to %ldkB\n",
+			program_name, PAGES * PAGE_SIZE / 1024);
+	}
+	DEV = open(device_name,O_RDWR);
+	if (DEV < 0 || fstat(DEV, &statbuf) < 0) {
+		perror(device_name);
+		exit(1);
+	}
+	if (!S_ISBLK(statbuf.st_mode))
+		do_check=0;
+	else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+		die("Will not try to make swapdevice on '%s'");
+	check_blocks(signature_page);
+	if (!bit_test_and_clear(signature_page,0))
+		die("fatal: first page unreadable");
+	goodpages = PAGES - badpages - 1;
+	if (goodpages <= 0)
+		die("Unable to set up swap-space: unreadable");
+	printf("Setting up swapspace, size = %ld bytes\n",goodpages*PAGE_SIZE);
+	strncpy((char*)signature_page+PAGE_SIZE-10,"SWAP-SPACE",10);
+	if (lseek(DEV, 0, SEEK_SET))
+		die("unable to rewind swap-device");
+	if (PAGE_SIZE != write(DEV, signature_page, PAGE_SIZE))
+		die("unable to write signature page");
+
+	close(DEV);
+	return 0;
+}
+
+int mkswap_main(struct FileInfo * unnecessary, int argc, char ** argv)
+{
+	char * tmp;
+	long int pages=0;
+	int check=0;
+
+	if (argc && *argv)
+		program_name = *argv;
+	while (argc > 1) {
+		argv++;
+		argc--;
+		if (argv[0][0] != '-')
+			if (device_name) {
+				pages = strtol(argv[0],&tmp,0)>>(PAGE_SHIFT-10);
+				if (*tmp) {
+				  	usage(mkswap_usage);
+					exit(1);
+				}
+			} else
+				device_name = argv[0];
+		else while (*++argv[0])
+			switch (argv[0][0]) {
+				case 'c': check=1; break;
+				default: usage(mkswap_usage);
+					exit(1);
+			}
+	}
+	return mkswap(device_name, pages, check);
+}
diff --git a/mnc.c b/mnc.c
new file mode 100644
index 000000000..9d59977da
--- /dev/null
+++ b/mnc.c
@@ -0,0 +1,148 @@
+/*  mnc: mini-netcat - built from the ground up for LRP
+    Copyright (C) 1998  Charles P. Wright
+
+    0.0.1   6K      It works.
+    0.0.2   5K      Smaller and you can also check the exit condition if you wish.
+
+
+    19980918 Busy Boxed! Dave Cinege
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+
+const char mnc_usage[] = 
+"mini-netcat 0.0.1 -- Open pipe to IP:port\n"
+"\tmnc [IP] [port]\n";
+
+int
+mnc_main(struct FileInfo * i, int argc, char **argv)
+{
+ 
+        int sfd;
+        int result;
+        int len;
+        int pid;
+        char ch;
+        
+        struct sockaddr_in address;
+        struct hostent *hostinfo;
+
+#ifdef SELECT
+        fd_set readfds, testfds;
+#endif
+
+        sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+        hostinfo = (struct hostent *) gethostbyname(argv[1]);
+
+        if (!hostinfo)
+        {
+                exit(1);
+        }
+
+        address.sin_family = AF_INET;
+        address.sin_addr = *(struct in_addr *) *hostinfo->h_addr_list;
+        address.sin_port = htons(atoi(argv[2]));
+
+        len = sizeof(address);
+
+        result = connect(sfd, (struct sockaddr *)&address, len);
+
+        if (result < 0) 
+        {
+                exit(2);
+        }
+
+#ifdef SELECT
+        FD_ZERO(&readfds);
+        FD_SET(sfd, &readfds);
+        FD_SET(fileno(stdin), &readfds);
+
+        while(1)
+        {
+                int fd;
+                int nread;
+
+                testfds = readfds;
+
+                result = select(FD_SETSIZE, &testfds, (fd_set *) NULL, (fd_set *) NULL, (struct timeval *) 0);
+
+                if(result < 1) 
+                {
+                        exit(3);
+                }
+
+                for(fd = 0; fd < FD_SETSIZE; fd++)
+                {
+                        if(FD_ISSET(fd,&testfds))
+                        {
+                                ioctl(fd, FIONREAD, &nread);
+
+                                if (nread == 0)
+                                        exit(0);
+
+                                if(fd == sfd)
+                                {
+                                        read(sfd, &ch, 1);
+                                        write(fileno(stdout), &ch, 1);
+                                }
+                                else
+                                {
+                                        read(fileno(stdin), &ch, 1);
+                                        write(sfd, &ch, 1);
+                                }
+                        }
+                }
+        }
+#else
+        pid = fork();
+
+        if (!pid)
+        {
+                int retval;
+                retval = 1;
+                while(retval == 1)
+                {
+                        retval = read(fileno(stdin), &ch, 1);
+                        write(sfd, &ch, 1);
+                }
+        }
+        else
+        {
+                int retval;
+                retval = 1;
+                while(retval == 1)
+                {
+                        retval = read(sfd, &ch, 1);
+                        write(fileno(stdout), &ch, 1);
+                }
+        }
+
+        exit(0);
+#endif
+}
diff --git a/monadic.c b/monadic.c
new file mode 100644
index 000000000..3c7fac25b
--- /dev/null
+++ b/monadic.c
@@ -0,0 +1,126 @@
+#include "internal.h"
+#include <stdio.h>
+#include <string.h>
+#include <grp.h>
+
+extern int
+monadic_main(
+ struct FileInfo *	i
+,int				argc
+,char * *			argv)
+{
+	int	status = 0;
+
+	while ( argc > 1 && argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'c':
+			i->create = 1;
+			break;
+		case 'f':
+			i->force = 1;
+			break;
+		case 'g':
+			if ( argc > 2 ) {
+				struct group *	g;
+				if ( (g = getgrnam(argv[2])) == 0 ) {
+					fprintf(stderr, "%s: no such group.\n", argv[1]);
+					return 1;
+				}
+				i->groupID = g->gr_gid;
+				i->changeGroupID = 1;
+				i->complainInPostProcess = 1;
+				argc--;
+				argv++;
+				break;
+			}
+			usage(i->applet->usage);
+			return 1;
+		case 'm':
+			if ( argc > 2 ) {
+				status = parse_mode(
+				 argv[2]
+				,&i->orWithMode
+				,&i->andWithMode, 0);
+
+				if ( status == 0 ) {
+					i->changeMode = 1;
+					i->complainInPostProcess = 1;
+					argc--;
+					argv++;
+					break;
+				}
+			}
+			usage(i->applet->usage);
+			return 1;
+		case 'o':
+			if ( argc > 2 ) {
+				status = parse_user_name(argv[2], i);
+				if ( status != 0 )
+					return status;
+
+				i->changeUserID = 1;
+				i->complainInPostProcess = 1;
+				argc--;
+				argv++;
+				break;
+			}
+			usage(i->applet->usage);
+			return 1;
+		case 'p':
+			i->makeParentDirectories = 1;
+			break;
+		case 'r':
+		case 'R':
+			i->recursive = 1;
+			break;
+		case 's':
+			i->makeSymbolicLink = 1;
+			break;
+		default:
+			usage(i->applet->usage);
+			return 1;
+		}
+		argv++;
+		argc--;
+	}
+	while ( argc > 1 ) {
+		char *	slash;
+		i->source = argv[1];
+		if ( (slash = strrchr(i->source, '/')) != 0 ) {
+			i->directoryLength = slash - i->source;
+			if ( i->source[i->directoryLength] == '\0' )
+				i->directoryLength = 0;
+		}
+		else
+			i->directoryLength = 0;
+		if ( !i->dyadic )
+			i->destination = i->source;
+
+		if ( lstat(i->source, &i->stat) == 0 ) {
+			i->isSymbolicLink = (i->stat.st_mode & S_IFMT)==S_IFLNK;
+			if ( i->isSymbolicLink )
+				if ( stat(i->source, &i->stat) != 0 )
+					memset(&i->stat, 0, sizeof(i->stat));
+		}
+		else
+			memset(&i->stat, 0, sizeof(i->stat));
+
+		if ( i->isSymbolicLink
+		 || !i->recursive
+		 || ((i->stat.st_mode & S_IFMT) != S_IFDIR) ) {
+
+			if ( i->applet->function )
+				status = i->applet->function(i);
+			if ( status == 0 )
+				status = post_process(i);
+		}
+		else
+			status = descend(i, i->applet->function);
+
+		if ( status != 0 && !i->force )
+			return status;
+		argv++;
+		argc--;
+	}
+	return 0;
+}
diff --git a/more.c b/more.c
new file mode 100644
index 000000000..65409999b
--- /dev/null
+++ b/more.c
@@ -0,0 +1,110 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#define BB_MORE_TERM
+
+#ifdef BB_MORE_TERM
+	#include <termios.h>
+	#include <signal.h>
+
+	FILE *cin;
+	struct termios initial_settings, new_settings;
+
+	void gotsig(int sig) { 
+		tcsetattr(fileno(cin), TCSANOW, &initial_settings);
+		exit(0);
+	}
+#endif
+
+const char	more_usage[] = "more [file]\n"
+"\n"
+"\tDisplays a file, one page at a time.\n"
+"\tIf there are no arguments, the standard input is displayed.\n";
+
+extern int
+more_fn(const struct FileInfo * i)
+{
+	FILE *	f = stdin;
+	int	c;
+	int	lines = 0, tlines = 0;
+	int	next_page = 0;
+	int	rows = 24, cols = 79;
+#ifdef BB_MORE_TERM
+	long sizeb = 0;
+	struct stat st;	
+	struct winsize win;
+#endif
+	
+	if ( i ) {
+		if (! (f = fopen(i->source, "r") )) {
+			name_and_error(i->source);
+			return 1;
+		}
+		fstat(fileno(f), &st);
+		sizeb = st.st_size / 100;
+	}
+		
+#ifdef BB_MORE_TERM
+	cin = fopen("/dev/tty", "r");
+	tcgetattr(fileno(cin),&initial_settings);
+	new_settings = initial_settings;
+	new_settings.c_lflag &= ~ICANON;
+	new_settings.c_lflag &= ~ECHO;
+	tcsetattr(fileno(cin), TCSANOW, &new_settings);
+	
+	(void) signal(SIGINT, gotsig);
+
+	ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
+	if (win.ws_row > 4)	rows = win.ws_row - 2;
+	if (win.ws_col > 0)	cols = win.ws_col - 1;
+
+
+#endif
+
+	while ( (c = getc(f)) != EOF ) {
+		if ( next_page ) {
+			char	garbage;
+			int	len;
+			tlines += lines;
+			lines = 0;
+			next_page = 0;		//Percentage is based on bytes, not lines.
+			if ( i && i->source )	//It is not very acurate, but still useful.
+				len = printf("%s - %%%2ld - line: %d", i->source, (ftell(f) - sizeb - sizeb) / sizeb, tlines);
+			else
+				len = printf("line: %d", tlines);
+				
+			fflush(stdout);
+#ifndef BB_MORE_TERM		
+			read(2, &garbage, 1);
+#else				
+			do {
+				fread(&garbage, 1, 1, cin);	
+			} while ((garbage != ' ') && (garbage != '\n'));
+			
+			if (garbage == '\n') {
+				lines = rows;
+				tlines -= rows;
+			}					
+			garbage = 0;				
+			//clear line, since tabs don't overwrite.
+			while(len-- > 0)	putchar('\b');
+			while(len++ < cols)	putchar(' ');
+			while(len-- > 0)	putchar('\b');
+			fflush(stdout);
+#endif								
+		}
+		putchar(c);
+		if ( c == '\n' && ++lines == (rows + 1) )
+			next_page = 1;
+	}
+	if ( f != stdin )
+		fclose(f);
+#ifdef BB_MORE_TERM
+	gotsig(0);
+#endif	
+	return 0;
+}
diff --git a/mount.c b/mount.c
new file mode 100644
index 000000000..010757d1e
--- /dev/null
+++ b/mount.c
@@ -0,0 +1,430 @@
+/*
+   3/21/1999	Charles P. Wright <cpwright@cpwright.com>
+		searches through fstab when -a is passed
+		will try mounting stuff with all fses when passed -t auto
+
+	1999-04-17	Dave Cinege...Rewrote -t auto. Fixed ro mtab.
+*/
+
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+#include <ctype.h>
+
+const char	mount_usage[] = "mount\n"
+"\t\tmount [flags] special-device directory\n"
+"\n"
+"Flags:\n"
+"\t-a:\tMount all file systems in fstab.\n"
+"\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n"
+"\t-n:\tDon't write a mount table entry.\n"
+"\t-o option:\tOne of many filesystem options, listed below.\n"
+"\t-r:\tMount the filesystem read-only.\n"
+"\t-t filesystem-type:\tSpecify the filesystem type.\n"
+"\t-w:\tMount for reading and writing (default).\n"
+"\n"
+"Options for use with the \"-o\" flag:\n"
+"\tasync / sync:\tWrites are asynchronous / synchronous.\n"
+"\tdev / nodev:\tAllow use of special device files / disallow them.\n"
+"\texec / noexec:\tAllow use of executable files / disallow them.\n"
+"\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n"
+"\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n"
+"\tro / rw: Mount for read-only / read-write.\n"
+"\t"
+"There are EVEN MORE flags that are specific to each filesystem.\n"
+"You'll have to see the written documentation for those.\n";
+
+struct mount_options {
+	const char *	name;
+	unsigned long	and;
+	unsigned long	or;
+};
+
+static const struct mount_options	mount_options[] = {
+	{	"async",	~MS_SYNCHRONOUS,0		},
+	{	"defaults",	~0,		0		},
+	{	"dev",		~MS_NODEV,	0		},
+	{	"exec",		~MS_NOEXEC,	0		},
+	{	"nodev",	~0,		MS_NODEV	},
+	{	"noexec",	~0,		MS_NOEXEC	},
+	{	"nosuid",	~0,		MS_NOSUID	},
+	{	"remount",	~0,		MS_REMOUNT	},
+	{	"ro",		~0,		MS_RDONLY	},
+	{	"rw",		~MS_RDONLY,	0		},
+	{	"suid",		~MS_NOSUID,	0		},
+	{	"sync",		~0,		MS_SYNCHRONOUS	},
+	{	0,		0,		0		}
+};
+
+static void
+show_flags(unsigned long flags, char * buffer)
+{
+	const struct mount_options *	f = mount_options;
+	while ( f->name ) {
+		if ( flags & f->and ) {
+			int	length = strlen(f->name);
+			memcpy(buffer, f->name, length);
+			buffer += length;
+			*buffer++ = ',';
+			*buffer = '\0';
+		}
+		f++;
+	}
+}
+
+static void
+one_option(
+ char *			option
+,unsigned long *	flags
+,char *			data)
+{
+	const struct mount_options *	f = mount_options;
+
+	while ( f->name != 0 ) {
+		if ( strcasecmp(f->name, option) == 0 ) {
+			*flags &= f->and;
+			*flags |= f->or;
+			return;
+		}
+		f++;
+	}
+	if ( *data ) {
+		data += strlen(data);
+		*data++ = ',';
+	}
+	strcpy(data, option);
+}
+
+static void
+parse_mount_options(
+ char *			options
+,unsigned long *	flags
+,char *			data)
+{
+	while ( *options ) {
+		char * comma = strchr(options, ',');
+		if ( comma )
+			*comma = '\0';
+		one_option(options, flags, data);
+		if ( comma ) {
+			*comma = ',';
+			options = ++comma;
+		}
+		else
+			break;
+	}
+}
+
+int
+mount_one(
+ char *		blockDevice
+,char *		directory
+,char *		filesystemType
+,unsigned long	flags
+,char *		string_flags
+,int		noMtab
+,int		fake)
+{
+	int	error = 0;
+	int 	status = 0;
+
+	char	buf[255];
+		
+	if (!fake) {
+		if (*filesystemType == 'a') { 			//Will fail on real FS starting with 'a'
+
+			FILE	*f = fopen("/proc/filesystems", "r");
+
+			if (f == NULL)	return 1;
+
+			while (fgets(buf, sizeof(buf), f) != NULL) {
+				filesystemType = buf;
+				if (*filesystemType == '\t') {  // Not a nodev filesystem
+					
+					while (*filesystemType && *filesystemType != '\n')	filesystemType++;
+					*filesystemType = '\0';
+						
+					filesystemType = buf;
+					filesystemType++;	//hop past tab
+					
+					status = mount(blockDevice, directory, filesystemType,
+							flags|MS_MGC_VAL ,string_flags);
+					error = errno;
+
+					if (status == 0) break;
+				}
+			}
+			fclose(f);
+		} else {	
+
+			status = mount( blockDevice, directory, filesystemType,
+					flags|MS_MGC_VAL ,string_flags);
+			error = errno;
+		}
+	}
+
+	if ( status == 0 ) {
+		char *	s = &string_flags[strlen(string_flags)];
+		FILE *	mountTable;
+		if ( s != string_flags ) {
+			*s++ = ',';
+			show_flags(flags, s);
+		}
+		if ( !noMtab && (mountTable = setmntent("/etc/mtab", "a+")) ) {
+			int	length = strlen(directory);
+			struct mntent	m;
+
+			if ( length > 1 && directory[length - 1] == '/' )
+				directory[length - 1] = '\0';
+
+			if ( filesystemType == 0 ) {
+				struct mntent *	p
+				 = findMountPoint(blockDevice, "/proc/mounts");
+
+				if ( p && p->mnt_type )
+					filesystemType = p->mnt_type;
+			}
+			m.mnt_fsname = blockDevice;
+			m.mnt_dir = directory;
+			m.mnt_type = filesystemType ? filesystemType : "default";
+			
+			if (*string_flags) {
+				m.mnt_opts = string_flags;
+			} else {
+				if ( (flags | MS_RDONLY) == flags )
+					m.mnt_opts = "ro";
+				else	
+					m.mnt_opts = "rw";
+			}
+			
+			m.mnt_freq = 0;
+			m.mnt_passno = 0;
+			addmntent(mountTable, &m);
+			endmntent(mountTable);
+		}
+		return 0;
+	} else {
+		fprintf(stderr, "Mount %s", blockDevice);
+		if ( filesystemType && *filesystemType )
+			fprintf(stderr, " (type %s)", filesystemType);
+
+		fprintf(
+		 stderr
+		," on %s: "
+		,directory);
+
+		switch ( error ) {
+		case EPERM:
+			if (geteuid() == 0)
+				fprintf(
+				 stderr
+				,"mount point %s is not a directory"
+				,blockDevice);
+			else
+				fprintf(
+				 stderr
+				,"must be superuser to use mount");
+			break;
+		case EBUSY:
+			fprintf(
+			 stderr
+			,"%s already mounted or %s busy"
+			,blockDevice
+			,directory);
+			break;
+		case ENOENT:
+		{
+			struct stat statbuf;
+			if ( stat(directory, &statbuf) != 0 )
+				fprintf(
+				 stderr
+				,"directory %s does not exist"
+				,directory);
+			else if ( stat(blockDevice, &statbuf) != 0 )
+				fprintf(
+				 stderr
+				,"block device %s does not exist"
+				,blockDevice);
+			else
+				fprintf(
+				 stderr
+				,"%s is not mounted on %s, but the mount table says it is."
+				,blockDevice
+				,directory);
+			break;
+		}
+		case ENOTDIR:
+			fprintf(
+			 stderr
+			,"%s is not a directory"
+			,directory);
+			break;
+		case EINVAL:
+			fprintf(
+			 stderr
+			,"wrong filesystem type, or bad superblock on %s"
+			,blockDevice);
+			break;
+		case EMFILE:
+			fprintf(stderr, "mount table full");
+			break;
+		case EIO:
+			fprintf(
+			 stderr
+			,"I/O error reading %s"
+			,blockDevice);
+			break;
+		case ENODEV:
+		{
+			FILE *	f = fopen("/proc/filesystems", "r");
+
+			fprintf(
+			 stderr
+			,"filesystem type %s not in kernel.\n"
+			,filesystemType);
+			fprintf(stderr, "Do you need to load a module?\n");
+			if ( f ) {
+				char	buf[100];
+
+				fprintf(
+				 stderr
+				,"Here are the filesystem types the kernel"
+				 " can mount:\n");
+				while ( fgets(buf, sizeof(buf), f) != 0 )
+					fprintf(stderr, "\t%s", buf);
+				fclose(f);
+			}
+			break;
+		}
+		case ENOTBLK:
+			fprintf(
+			 stderr
+			,"%s is not a block device"
+			,blockDevice);
+			break;
+		case ENXIO:
+			fprintf(
+			 stderr
+			,"%s is not a valid block device"
+			,blockDevice);
+			break;
+		default:
+			fputs(strerror(errno), stderr);
+		}
+		putc('\n', stderr);
+		return -1;
+	}
+}
+
+extern int
+mount_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char	string_flags[1024];
+	unsigned long	flags = 0;
+	char *	filesystemType = "auto";
+	int		fake = 0;
+	int		noMtab = 0;
+	int 		all = 0;
+	
+	*string_flags = '\0';
+
+	if ( argc == 1 ) {
+		FILE *	mountTable;
+		if ( (mountTable = setmntent("/etc/mtab", "r")) ) {
+			struct mntent * m;
+			while ( (m = getmntent(mountTable)) != 0 ) {
+				printf(
+				 "%s on %s type %s (%s)\n"
+				,m->mnt_fsname
+				,m->mnt_dir
+				,m->mnt_type
+				,m->mnt_opts);
+			}
+			endmntent(mountTable);
+		}
+		return 0;
+	}
+
+	while ( argc >= 2 && argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'f':
+			fake = 1;
+			break;
+		case 'n':
+			noMtab = 1;
+			break;
+		case 'o':
+			if ( argc < 3 ) {
+				usage(mount_usage);
+				return 1;
+			}
+			parse_mount_options(argv[2], &flags, string_flags);
+			argc--;
+			argv++;
+			break;
+		case 'r':
+			flags |= MS_RDONLY;
+			break;
+		case 't':
+			if ( argc < 3 ) {
+				usage(mount_usage);
+				return 1;
+			}
+			filesystemType = argv[2];
+			argc--;
+			argv++;
+			break;
+		case 'v':
+			break;
+		case 'w':
+			flags &= ~MS_RDONLY;
+			break;
+		case 'a':
+			all = 1;
+			break;
+		default:
+			usage(mount_usage);
+			return 1;
+		}
+		argc--;
+		argv++;
+	}
+
+	if (all == 1) {
+		struct 	mntent *m;
+		FILE	*f = setmntent("/etc/fstab", "r");
+
+		if (f == NULL)	{
+			return 1;
+		}
+
+		// FIXME: Combine read routine (make new function) with unmount_all to save space.
+
+		while ((m = getmntent(f)) != NULL) {	
+			// If the file system isn't noauto, and isn't mounted on /, mount it
+			if ((!strstr(m->mnt_opts, "noauto")) && (m->mnt_dir[1] != '\0') 
+				&& !((m->mnt_type[0] == 's') && (m->mnt_type[1] == 'w')) 
+				&& !((m->mnt_type[0] == 'n') && (m->mnt_type[1] == 'f'))) {
+				mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type, flags, m->mnt_opts, noMtab, fake);	
+			}
+		}
+
+		endmntent(f);
+	} else {
+		if ( argc >= 3 ) {
+			if ( mount_one( argv[1], argv[2], filesystemType, flags, string_flags, noMtab, fake) == 0 )
+				return 0;
+			else
+				return 1;
+		} else {
+			usage(mount_usage);
+			return 1;
+		}
+	}
+	return 0;
+}
diff --git a/mt.c b/mt.c
new file mode 100644
index 000000000..7d75fbd3d
--- /dev/null
+++ b/mt.c
@@ -0,0 +1,98 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/mtio.h>
+#include <sys/fcntl.h>
+
+const char	mt_usage[] = "mt [-f device] opcode value\n";
+
+struct mt_opcodes {
+	char *	name;
+	short	value;
+};
+
+/* missing: eod/seod, stoptions, stwrthreshold, densities */
+static const struct mt_opcodes	opcodes[] = {
+	{ "bsf",	MTBSF },
+	{ "bsfm",	MTBSFM },
+	{ "bsr",	MTBSR },
+	{ "bss",	MTBSS },
+	{ "datacompression",	MTCOMPRESSION },
+	{ "eom",	MTEOM },
+	{ "erase",	MTERASE },
+	{ "fsf",	MTFSF },
+	{ "fsfm",	MTFSFM },
+	{ "fsr",	MTFSR },
+	{ "fss",	MTFSS },
+	{ "load",	MTLOAD },
+	{ "lock",	MTLOCK },
+	{ "mkpart",	MTMKPART },
+	{ "nop",	MTNOP },
+	{ "offline",MTOFFL },
+	{ "rewoffline",MTOFFL },
+	{ "ras1",	MTRAS1 },
+	{ "ras2",	MTRAS2 },
+	{ "ras3",	MTRAS3 },
+	{ "reset",	MTRESET },
+	{ "retension",	MTRETEN },
+	{ "rew",	MTREW },
+	{ "seek",	MTSEEK },
+	{ "setblk",	MTSETBLK },
+	{ "setdensity",	MTSETDENSITY },
+	{ "drvbuffer",	MTSETDRVBUFFER },
+	{ "setpart",	MTSETPART },
+	{ "tell",	MTTELL },
+	{ "wset",	MTWSM },
+	{ "unload",	MTUNLOAD },
+	{ "unlock",	MTUNLOCK },
+	{ "eof",	MTWEOF },
+	{ "weof",	MTWEOF },
+	{ 0,			0 }
+};
+
+extern int
+mt_main(struct FileInfo * i, int argc, char * * argv)
+{
+	const char *				file = "/dev/tape";
+	const struct mt_opcodes *	code = opcodes;
+	struct mtop					op;
+	int							fd;
+	
+	if ( strcmp(argv[1], "-f") == 0 ) {
+		if ( argc < 4 ) {
+			usage(mt_usage);
+			return 1;
+		}
+		file = argv[2];
+		argv += 2;
+		argc -= 2;
+	}
+
+	while ( code->name != 0 ) {
+		if ( strcmp(code->name, argv[1]) == 0 )
+			break;
+		code++;
+	}
+
+	if ( code->name == 0 ) {
+		fprintf(stderr, "mt: unrecognized opcode %s.\n", argv[1]);
+		return 1;
+	}
+
+	op.mt_op = code->value;
+	if ( argc >= 3 )
+		op.mt_count = atoi(argv[2]); 
+	else
+		op.mt_count = 1; /* One, not zero, right? */
+
+	if ( (fd = open(file, O_RDONLY, 0)) < 0 ) {
+		name_and_error(file);
+		return 1;
+	}
+
+	if ( ioctl(fd, MTIOCTOP, &op) != 0 ) {
+		name_and_error(file);
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/mv.c b/mv.c
new file mode 100644
index 000000000..22c4a1207
--- /dev/null
+++ b/mv.c
@@ -0,0 +1,38 @@
+#include "internal.h"
+#include <stdio.h>
+#include <errno.h>
+
+const char	mv_usage[] = "mv source-file destination-file\n"
+"\t\tmv source-file [source-file ...] destination-directory\n"
+"\n"
+"\tMove the source files to the destination.\n"
+"\n";
+
+extern int
+mv_fn(const struct FileInfo * i)
+{
+	struct stat		destination_stat;
+	char			d[1024];
+	struct FileInfo	n;
+
+	if ( stat(i->destination, &destination_stat) == 0 ) {
+		if ( i->stat.st_ino == destination_stat.st_ino
+		 &&  i->stat.st_dev == destination_stat.st_dev )
+			return 0;	/* Move file to itself. */
+	}
+	if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
+		n = *i;
+		n.destination = join_paths(d, i->destination, basename(i->source));
+		i = &n;
+	}
+	if ( rename(i->source, i->destination) == 0 )
+		return 0;
+	else if ( errno == EXDEV && is_a_directory(i->source) ) {
+		fprintf(stderr
+		,"%s: Can't move directory across filesystems.\n"
+		,i->source);
+		return 1;
+	}
+	else
+		return cp_fn(i);
+}
diff --git a/postprocess.c b/postprocess.c
new file mode 100644
index 000000000..bbc87e689
--- /dev/null
+++ b/postprocess.c
@@ -0,0 +1,41 @@
+#include "internal.h"
+
+extern int
+post_process(const struct FileInfo * i)
+{
+	int	status = 0;
+
+	if ( i->destination == 0 || *i->destination == 0 )
+		return 0;
+
+	if ( status == 0 && i->changeMode ) {
+		mode_t	mode = i->stat.st_mode & 07777;
+		mode &= i->andWithMode;
+		mode |= i->orWithMode;
+		status = chmod(i->destination, mode);
+
+		if ( status != 0 && i->complainInPostProcess && !i->force ) {
+			name_and_error(i->destination);
+			return 1;
+		}
+	}
+
+	if ( i->changeUserID || i->changeGroupID ) {
+		uid_t	uid = i->stat.st_uid;
+		gid_t	gid = i->stat.st_gid;
+
+		if ( i->changeUserID )
+			uid = i->userID;
+		if ( i->changeGroupID )
+			gid = i->groupID;
+
+		status = chown(i->destination, uid, gid);
+
+		if ( status != 0 && i->complainInPostProcess && !i->force ) {
+			name_and_error(i->destination);
+			return 1;
+		}
+	}
+
+	return status;
+}
diff --git a/printf.c b/printf.c
new file mode 100644
index 000000000..e79843c80
--- /dev/null
+++ b/printf.c
@@ -0,0 +1,531 @@
+// I may still need some more cleaning...fix my error checking
+
+#include "internal.h"
+#ifdef BB_PRINTF
+
+/* printf - format and print data
+   Copyright (C) 90, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Usage: printf format [argument...]
+
+   A front end to the printf function that lets it be used from the shell.
+
+   Backslash escapes:
+
+   \" = double quote
+   \\ = backslash
+   \a = alert (bell)
+   \b = backspace
+   \c = produce no further output
+   \f = form feed
+   \n = new line
+   \r = carriage return
+   \t = horizontal tab
+   \v = vertical tab
+   \0ooo = octal number (ooo is 0 to 3 digits)
+   \xhhh = hexadecimal number (hhh is 1 to 3 digits)
+
+   Additional directive:
+
+   %b = print an argument string, interpreting backslash escapes
+
+   The `format' argument is re-used as many times as necessary
+   to convert all of the given arguments.
+
+   David MacKenzie <djm@gnu.ai.mit.edu> */
+   
+
+//   19990508 Busy Boxed! Dave Cinege
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <libintl.h>
+
+
+#ifndef S_IFMT
+# define S_IFMT 0170000
+#endif
+#if !defined(S_ISBLK) && defined(S_IFBLK)
+# define	S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+#endif
+#if !defined(S_ISCHR) && defined(S_IFCHR)
+# define	S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+#endif
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+# define	S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+# define	S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+#if !defined(S_ISFIFO) && defined(S_IFIFO)
+# define	S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
+#endif
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+# define	S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
+#endif
+#if !defined(S_ISSOCK) && defined(S_IFSOCK)
+# define	S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+#endif
+#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
+# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
+# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
+#endif
+#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
+# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
+#endif
+
+#define IN_CTYPE_DOMAIN(c) 1
+
+#ifdef isblank
+# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c))
+#else
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+#endif
+#ifdef isgraph
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c))
+#else
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c))
+#endif
+
+#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
+#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
+#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
+#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
+#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
+#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c))
+#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
+#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
+#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
+#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
+#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
+
+#define isodigit(c) ((c) >= '0' && (c) <= '7')
+#define hextobin(c) ((c)>='a'&&(c)<='f' ? (c)-'a'+10 : (c)>='A'&&(c)<='F' ? (c)-'A'+10 : (c)-'0')
+#define octtobin(c) ((c) - '0')
+
+char *xmalloc ();
+
+static double xstrtod __P ((char *s));
+static int print_esc __P ((char *escstart));
+static int print_formatted __P ((char *format, int argc, char **argv));
+static long xstrtol __P ((char *s));
+static unsigned long xstrtoul __P ((char *s));
+static void print_direc __P ((char *start, size_t length, int field_width, int precision, char *argument));
+static void print_esc_char __P ((int c));
+static void print_esc_string __P ((char *str));
+static void verify __P ((char *s, char *end));
+
+/* The value to return to the calling program.  */
+static int exit_status;
+
+const char	printf_usage[] = "Usage: printf format [argument...]\n";
+
+int
+printf_main(struct FileInfo * i, int argc, char * * argv)
+{
+  char *format;
+  int args_used;
+
+  exit_status = 0;
+
+  format = argv[1];
+  argc -= 2;
+  argv += 2;
+
+  do
+    {
+      args_used = print_formatted (format, argc, argv);
+      argc -= args_used;
+      argv += args_used;
+    }
+  while (args_used > 0 && argc > 0);
+
+/*
+  if (argc > 0)
+    fprintf(stderr, "excess args ignored");
+*/
+
+  exit (exit_status);
+}
+
+/* Print the text in FORMAT, using ARGV (with ARGC elements) for
+   arguments to any `%' directives.
+   Return the number of elements of ARGV used.  */
+
+static int
+print_formatted (char *format, int argc, char **argv)
+{
+  int save_argc = argc;		/* Preserve original value.  */
+  char *f;			/* Pointer into `format'.  */
+  char *direc_start;		/* Start of % directive.  */
+  size_t direc_length;		/* Length of % directive.  */
+  int field_width;		/* Arg to first '*', or -1 if none.  */
+  int precision;		/* Arg to second '*', or -1 if none.  */
+
+  for (f = format; *f; ++f)
+    {
+      switch (*f)
+	{
+	case '%':
+	  direc_start = f++;
+	  direc_length = 1;
+	  field_width = precision = -1;
+	  if (*f == '%')
+	    {
+	      putchar ('%');
+	      break;
+	    }
+	  if (*f == 'b')
+	    {
+	      if (argc > 0)
+		{
+		  print_esc_string (*argv);
+		  ++argv;
+		  --argc;
+		}
+	      break;
+	    }
+	  if (strchr ("-+ #", *f))
+	    {
+	      ++f;
+	      ++direc_length;
+	    }
+	  if (*f == '*')
+	    {
+	      ++f;
+	      ++direc_length;
+	      if (argc > 0)
+		{
+		  field_width = xstrtoul (*argv);
+		  ++argv;
+		  --argc;
+		}
+	      else
+		field_width = 0;
+	    }
+	  else
+	    while (ISDIGIT (*f))
+	      {
+		++f;
+		++direc_length;
+	      }
+	  if (*f == '.')
+	    {
+	      ++f;
+	      ++direc_length;
+	      if (*f == '*')
+		{
+		  ++f;
+		  ++direc_length;
+		  if (argc > 0)
+		    {
+		      precision = xstrtoul (*argv);
+		      ++argv;
+		      --argc;
+		    }
+		  else
+		    precision = 0;
+		}
+	      else
+		while (ISDIGIT (*f))
+		  {
+		    ++f;
+		    ++direc_length;
+		  }
+	    }
+	  if (*f == 'l' || *f == 'L' || *f == 'h')
+	    {
+	      ++f;
+	      ++direc_length;
+	    }
+	  /*  
+	  if (!strchr ("diouxXfeEgGcs", *f))
+	    fprintf(stderr, "%%%c: invalid directive", *f);
+	  */
+	  ++direc_length;
+	  if (argc > 0)
+	    {
+	      print_direc (direc_start, direc_length, field_width,
+			   precision, *argv);
+	      ++argv;
+	      --argc;
+	    }
+	  else
+	    print_direc (direc_start, direc_length, field_width,
+			 precision, "");
+	  break;
+
+	case '\\':
+	  f += print_esc (f);
+	  break;
+
+	default:
+	  putchar (*f);
+	}
+    }
+
+  return save_argc - argc;
+}
+
+/* Print a \ escape sequence starting at ESCSTART.
+   Return the number of characters in the escape sequence
+   besides the backslash. */
+
+static int
+print_esc (char *escstart)
+{
+  register char *p = escstart + 1;
+  int esc_value = 0;		/* Value of \nnn escape. */
+  int esc_length;		/* Length of \nnn escape. */
+
+  /* \0ooo and \xhhh escapes have maximum length of 3 chars. */
+  if (*p == 'x')
+    {
+      for (esc_length = 0, ++p;
+	   esc_length < 3 && ISXDIGIT (*p);
+	   ++esc_length, ++p)
+	esc_value = esc_value * 16 + hextobin (*p);
+/*      if (esc_length == 0)
+	fprintf(stderr, "missing hex in esc");
+*/
+      putchar (esc_value);
+    }
+  else if (*p == '0')
+    {
+      for (esc_length = 0, ++p;
+	   esc_length < 3 && isodigit (*p);
+	   ++esc_length, ++p)
+	esc_value = esc_value * 8 + octtobin (*p);
+      putchar (esc_value);
+    }
+  else if (strchr ("\"\\abcfnrtv", *p))
+    print_esc_char (*p++);
+/*  else
+    fprintf(stderr, "\\%c: invalid esc", *p);
+*/
+  return p - escstart - 1;
+}
+
+/* Output a single-character \ escape.  */
+
+static void
+print_esc_char (int c)
+{
+  switch (c)
+    {
+    case 'a':			/* Alert. */
+      putchar (7);
+      break;
+    case 'b':			/* Backspace. */
+      putchar (8);
+      break;
+    case 'c':			/* Cancel the rest of the output. */
+      exit (0);
+      break;
+    case 'f':			/* Form feed. */
+      putchar (12);
+      break;
+    case 'n':			/* New line. */
+      putchar (10);
+      break;
+    case 'r':			/* Carriage return. */
+      putchar (13);
+      break;
+    case 't':			/* Horizontal tab. */
+      putchar (9);
+      break;
+    case 'v':			/* Vertical tab. */
+      putchar (11);
+      break;
+    default:
+      putchar (c);
+      break;
+    }
+}
+
+/* Print string STR, evaluating \ escapes. */
+
+static void
+print_esc_string (char *str)
+{
+  for (; *str; str++)
+    if (*str == '\\')
+      str += print_esc (str);
+    else
+      putchar (*str);
+}
+
+static void
+print_direc (char *start, size_t length, int field_width, int precision, char *argument)
+{
+  char *p;		/* Null-terminated copy of % directive. */
+
+  p = xmalloc ((unsigned) (length + 1));
+  strncpy (p, start, length);
+  p[length] = 0;
+
+  switch (p[length - 1])
+    {
+    case 'd':
+    case 'i':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtol (argument));
+	  else
+	    printf (p, precision, xstrtol (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtol (argument));
+	  else
+	    printf (p, field_width, precision, xstrtol (argument));
+	}
+      break;
+
+    case 'o':
+    case 'u':
+    case 'x':
+    case 'X':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtoul (argument));
+	  else
+	    printf (p, precision, xstrtoul (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtoul (argument));
+	  else
+	    printf (p, field_width, precision, xstrtoul (argument));
+	}
+      break;
+
+    case 'f':
+    case 'e':
+    case 'E':
+    case 'g':
+    case 'G':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, xstrtod (argument));
+	  else
+	    printf (p, precision, xstrtod (argument));
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, xstrtod (argument));
+	  else
+	    printf (p, field_width, precision, xstrtod (argument));
+	}
+      break;
+
+    case 'c':
+      printf (p, *argument);
+      break;
+
+    case 's':
+      if (field_width < 0)
+	{
+	  if (precision < 0)
+	    printf (p, argument);
+	  else
+	    printf (p, precision, argument);
+	}
+      else
+	{
+	  if (precision < 0)
+	    printf (p, field_width, argument);
+	  else
+	    printf (p, field_width, precision, argument);
+	}
+      break;
+    }
+
+  free (p);
+}
+
+static unsigned long
+xstrtoul (char *s)
+{
+  char *end;
+  unsigned long val;
+
+  errno = 0;
+  val = strtoul (s, &end, 0);
+  verify (s, end);
+  return val;
+}
+
+static long
+xstrtol (char *s)
+{
+  char *end;
+  long val;
+
+  errno = 0;
+  val = strtol (s, &end, 0);
+  verify (s, end);
+  return val;
+}
+
+static double
+xstrtod (char *s)
+{
+  char *end;
+  double val;
+
+  errno = 0;
+  val = strtod (s, &end);
+  verify (s, end);
+  return val;
+}
+
+static void
+verify (char *s, char *end)
+{
+  if (errno)
+    {
+      fprintf(stderr, "%s", s);
+      exit_status = 1;
+    }
+  else if (*end)
+    {
+    /*
+      if (s == end)
+	fprintf(stderr, "%s: expected numeric", s);
+      else
+	fprintf(stderr, "%s: not completely converted", s);
+    */	
+      exit_status = 1;
+    }
+}
+
+#endif
diff --git a/procps/kill.c b/procps/kill.c
new file mode 100644
index 000000000..da025fafc
--- /dev/null
+++ b/procps/kill.c
@@ -0,0 +1,140 @@
+#include "internal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+
+const char	kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
+
+struct signal_name {
+	const char *	name;
+	int				number;
+};
+
+const struct signal_name signames[] = {
+	{ "HUP",	SIGHUP },
+	{ "INT",	SIGINT },
+	{ "QUIT",	SIGQUIT },
+	{ "ILL",	SIGILL },
+	{ "TRAP",	SIGTRAP },
+	{ "ABRT",	SIGABRT },
+#ifndef __alpha__
+	{ "IOT",	SIGIOT },
+#endif
+#if defined(sparc) || defined(__alpha__)
+	{ "EMT",        SIGEMT },
+#else
+	{ "BUS",	SIGBUS },
+#endif
+	{ "FPE",	SIGFPE },
+	{ "KILL",	SIGKILL },
+#if defined(sparc) || defined(__alpha__)
+	{ "BUS",        SIGBUS },
+#else
+	{ "USR1",	SIGUSR1 },
+#endif
+	{ "SEGV",	SIGSEGV },
+#if defined(sparc) || defined(__alpha__)
+	{ "SYS",        SIGSYS },
+#else
+	{ "USR2",	SIGUSR2 },
+#endif
+	{ "PIPE",	SIGPIPE },
+	{ "ALRM",	SIGALRM },
+	{ "TERM",	SIGTERM },
+#if defined(sparc) || defined(__alpha__)
+	{ "URG",        SIGURG },
+	{ "STOP",       SIGSTOP },
+	{ "TSTP",       SIGTSTP },
+	{ "CONT",       SIGCONT },
+	{ "CHLD",       SIGCHLD },
+	{ "TTIN",       SIGTTIN },
+	{ "TTOU",       SIGTTOU },
+	{ "IO",         SIGIO },
+# ifndef __alpha__
+	{ "POLL",       SIGIO },
+# endif
+	{ "XCPU",       SIGXCPU },
+	{ "XFSZ",       SIGXFSZ },
+	{ "VTALRM",     SIGVTALRM },
+	{ "PROF",       SIGPROF },
+	{ "WINCH",      SIGWINCH },
+# ifdef __alpha__
+	{ "INFO",       SIGINFO },
+# else
+	{ "LOST",       SIGLOST },
+# endif
+	{ "USR1",       SIGUSR1 },
+	{ "USR2",       SIGUSR2 },
+#else
+	{ "STKFLT",	SIGSTKFLT },
+	{ "CHLD",	SIGCHLD },
+	{ "CONT",	SIGCONT },
+	{ "STOP",	SIGSTOP },
+	{ "TSTP",	SIGTSTP },
+	{ "TTIN",	SIGTTIN },
+	{ "TTOU",	SIGTTOU },
+	{ "URG",	SIGURG },
+	{ "XCPU",	SIGXCPU },
+	{ "XFSZ",	SIGXFSZ },
+	{ "VTALRM",	SIGVTALRM },
+	{ "PROF",	SIGPROF },
+	{ "WINCH",	SIGWINCH },
+	{ "IO",		SIGIO },
+	{ "POLL",	SIGPOLL },
+	{ "PWR",	SIGPWR },
+	{ "UNUSED",	SIGUNUSED },
+#endif
+	{ 0,		0		}
+};
+
+extern int
+kill_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int	had_error = 0;
+	int	sig = SIGTERM;
+	if ( argv[1][0] == '-' ) {
+		if ( argv[1][1] >= '0' && argv[1][1] <= '9' ) {
+			sig = atoi(&argv[1][1]);
+			if ( sig < 0 || sig >= NSIG ) {
+				usage(kill_usage);
+				exit(-1);
+			}
+		}
+		else {
+			const struct signal_name *	s = signames;
+			for ( ; ; ) {
+				if ( strcmp(s->name, &argv[1][1]) == 0 ) {
+					sig = s->number;
+					break;
+				}
+				s++;
+				if ( s->name == 0 ) {
+					usage(kill_usage);
+					exit(-1);
+				}
+			}
+		}
+		argv++;
+		argc--;
+
+	}
+	while ( argc > 1 ) {
+		int	pid;
+		if ( argv[1][0] < '0' || argv[1][0] > '9' ) {
+			usage(kill_usage);
+			exit(-1);
+		}
+		pid = atoi(argv[1]);
+		if ( kill(pid, sig) != 0 ) {
+			had_error = 1;
+			perror(argv[1]);
+		}
+		argv++;
+		argc--;
+	}
+	if ( had_error )
+		return -1;
+	else
+		return 0;
+}
diff --git a/pwd.c b/pwd.c
new file mode 100644
index 000000000..d9ab54e48
--- /dev/null
+++ b/pwd.c
@@ -0,0 +1,18 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	pwd_usage[] = "Print the current directory.\n";
+
+extern int
+pwd_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char		buf[1024];
+
+	if ( getcwd(buf, sizeof(buf)) == NULL ) {
+		name_and_error("get working directory");
+		return 1;
+	}
+
+	printf("%s\n", buf);
+	return 0;
+}
diff --git a/reboot.c b/reboot.c
new file mode 100644
index 000000000..0388fbce7
--- /dev/null
+++ b/reboot.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+#include <signal.h>
+
+const char	reboot_usage[] = "reboot\n"
+"\n\t"
+"\treboot the system.\n";
+
+extern int
+reboot_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return kill(1, SIGUSR2);
+}
diff --git a/rm.c b/rm.c
new file mode 100644
index 000000000..dc35b0297
--- /dev/null
+++ b/rm.c
@@ -0,0 +1,30 @@
+#include "internal.h"
+#include <errno.h>
+
+const char	rm_usage[] = "rm [-r] file [file ...]\n"
+"\n"
+"\tDelete files.\n"
+"\n"
+"\t-r:\tRecursively remove files and directories.\n";
+
+extern int
+rm_main(struct FileInfo * i, int argc, char * * argv)
+{
+	i->processDirectoriesAfterTheirContents = 1;
+	return monadic_main(i, argc, argv);
+}
+
+extern int
+rm_fn(const struct FileInfo * i)
+{
+	if ( i->recursive
+	 && !i->isSymbolicLink
+	 && (i->stat.st_mode & S_IFMT) == S_IFDIR )
+		return rmdir_fn(i);
+	else if ( unlink(i->source) != 0 && errno != ENOENT && !i->force ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/rmdir.c b/rmdir.c
new file mode 100644
index 000000000..069e68546
--- /dev/null
+++ b/rmdir.c
@@ -0,0 +1,17 @@
+#include "internal.h"
+#include <errno.h>
+
+const char	rmdir_usage[] = "rmdir directory [directory ...]\n"
+"\n"
+"\tDelete directories.\n";
+
+extern int
+rmdir_fn(const struct FileInfo * i)
+{
+	if ( rmdir(i->source) != 0 && errno != ENOENT && !i->force ) {
+		name_and_error(i->source);
+		return 1;
+	}
+	else
+		return 0;
+}
diff --git a/sleep.c b/sleep.c
new file mode 100644
index 000000000..e48e14b2f
--- /dev/null
+++ b/sleep.c
@@ -0,0 +1,15 @@
+#include "internal.h"
+#include <stdio.h>
+
+const char	sleep_usage[] = "sleep seconds\n"
+"\n"
+"\tPause program execution for the given number of seconds.\n";
+
+extern int
+sleep_main(struct FileInfo * i, int argc, char * * argv)
+{
+	if ( sleep(atoi(argv[1])) != 0 )
+		return -1;
+	else
+		return 0;
+}
diff --git a/smtpout b/smtpout
new file mode 100644
index 000000000..635a83c6f
--- /dev/null
+++ b/smtpout
@@ -0,0 +1,2 @@
+echo '.' >smtpout
echo 'QUIT' >smtpout
+kjfjkjd
diff --git a/swapoff.c b/swapoff.c
new file mode 100644
index 000000000..55124d0b8
--- /dev/null
+++ b/swapoff.c
@@ -0,0 +1,52 @@
+#include <sys/swap.h>
+#include <string.h>
+#include <errno.h>
+#include <mntent.h>
+#include "internal.h"
+
+const char	swapoff_usage[] = "swapoff block-device\n"
+"\n"
+"\tStop swapping virtual memory pages on the given device.\n";
+
+extern int
+swapoff_fn(const struct FileInfo * i)
+{
+	struct mntent   entries[100];
+	int	     count = 0;
+	FILE *	  swapsTable = setmntent("/etc/swaps", "r");
+	struct mntent * m;
+
+	if (!(swapoff(i->source))) {
+		if ( swapsTable == 0 ) {
+			fprintf(stderr, "/etc/swaps: %s\n", strerror(errno));
+			return 1;
+		}
+		while ( (m = getmntent(swapsTable)) != 0 ) {
+			entries[count].mnt_fsname = strdup(m->mnt_fsname);
+			entries[count].mnt_dir = strdup(m->mnt_dir);
+			entries[count].mnt_type = strdup(m->mnt_type);
+			entries[count].mnt_opts = strdup(m->mnt_opts);
+			entries[count].mnt_freq = m->mnt_freq;
+			entries[count].mnt_passno = m->mnt_passno;
+			count++;
+		}
+		endmntent(swapsTable);
+		if ( (swapsTable = setmntent("/etc/swaps", "w")) ) {
+			int     id;
+			for ( id = 0; id < count; id++ ) {
+				int result = 
+				 (strcmp(entries[id].mnt_fsname, i->source)==0
+				 ||strcmp(entries[id].mnt_dir, i->source)==0);
+				if ( result )
+					continue;
+				else
+					addmntent(swapsTable, &entries[id]);
+			}
+			endmntent(swapsTable);
+		}
+		else if ( errno != EROFS )
+			fprintf(stderr, "/etc/swaps: %s\n", strerror(errno));
+		return (0);
+	}
+	return (-1);
+}
diff --git a/swapon.c b/swapon.c
new file mode 100644
index 000000000..78360a55f
--- /dev/null
+++ b/swapon.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/swap.h>
+#include "internal.h"
+
+const char	swapon_usage[] = "swapon block-device\n"
+"\n"
+"\tSwap virtual memory pages on the given device.\n";
+
+extern int
+swapon_fn(const struct FileInfo * i)
+{
+	FILE *swapsTable;
+	struct mntent m;
+
+        if (!(swapon(i->source, 0))) {
+		if ((swapsTable = setmntent("/etc/swaps", "a+"))) {
+			/* Needs the cast to avoid warning about conversion from
+			 * const char* to just  char*
+			 */
+			m.mnt_fsname = (char*)i->source;
+			m.mnt_dir = "none";
+			m.mnt_type = "swap";
+			m.mnt_opts = "sw";
+			m.mnt_freq = 0;
+			m.mnt_passno = 0;
+			addmntent(swapsTable, &m);
+			endmntent(swapsTable);
+		}
+		return (0);
+	}
+	return (-1);
+}
+
diff --git a/sync.c b/sync.c
new file mode 100644
index 000000000..6fa5b380b
--- /dev/null
+++ b/sync.c
@@ -0,0 +1,11 @@
+#include "internal.h"
+
+const char	sync_usage[] = "sync\n"
+"\n"
+"\tWrite all buffered filesystem blocks to disk.\n";
+
+extern int
+sync_main(struct FileInfo * i, int argc, char * * argv)
+{
+	return sync();
+}
diff --git a/tar.c b/tar.c
new file mode 100644
index 000000000..03da96735
--- /dev/null
+++ b/tar.c
@@ -0,0 +1,1425 @@
+/*
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ *
+ * The "tar" command, taken from sash.
+ * This allows creation, extraction, and listing of tar files.
+ *
+ * Permission to distribute this code under the GPL has been granted.
+ * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com>
+ */
+
+
+#include "internal.h"
+
+#ifdef BB_TAR
+
+const char tar_usage[] = 
+"Create, extract, or list files from a TAR file\n\n"
+"usage: tar -[cxtvOf] [tarFileName] [FILE] ...\n"
+"\tc=create, x=extract, t=list contents, v=verbose,\n"
+"\tO=extract to stdout, f=tarfile or \"-\" for stdin\n";
+
+
+
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+
+/*
+ * Tar file constants.
+ */
+#define TAR_BLOCK_SIZE	512
+#define TAR_NAME_SIZE	100
+
+
+/*
+ * The POSIX (and basic GNU) tar header format.
+ * This structure is always embedded in a TAR_BLOCK_SIZE sized block
+ * with zero padding.  We only process this information minimally.
+ */
+typedef struct
+{
+	char	name[TAR_NAME_SIZE];
+	char	mode[8];
+	char	uid[8];
+	char	gid[8];
+	char	size[12];
+	char	mtime[12];
+	char	checkSum[8];
+	char	typeFlag;
+	char	linkName[TAR_NAME_SIZE];
+	char	magic[6];
+	char	version[2];
+	char	uname[32];
+	char	gname[32];
+	char	devMajor[8];
+	char	devMinor[8];
+	char	prefix[155];
+} TarHeader;
+
+#define	TAR_MAGIC	"ustar"
+#define	TAR_VERSION	"00"
+
+#define	TAR_TYPE_REGULAR	'0'
+#define	TAR_TYPE_HARD_LINK	'1'
+#define	TAR_TYPE_SOFT_LINK	'2'
+
+
+/*
+ * Static data.
+ */
+static	BOOL		listFlag;
+static	BOOL		extractFlag;
+static	BOOL		createFlag;
+static	BOOL		verboseFlag;
+static	BOOL		tostdoutFlag;
+
+static	BOOL		inHeader;
+static	BOOL		badHeader;
+static	BOOL		errorFlag;
+static	BOOL		skipFileFlag;
+static	BOOL		warnedRoot;
+static	BOOL		eofFlag;
+static	long		dataCc;
+static	int		outFd;
+static	char		outName[TAR_NAME_SIZE];
+
+
+/*
+ * Static data associated with the tar file.
+ */
+static	const char *	tarName;
+static	int		tarFd;
+static	dev_t		tarDev;
+static	ino_t		tarInode;
+
+
+/*
+ * Local procedures to restore files from a tar file.
+ */
+static	void	readTarFile(int fileCount, char ** fileTable);
+static	void	readData(const char * cp, int count);
+static	void	createPath(const char * name, int mode);
+static	long	getOctal(const char * cp, int len);
+
+static	void	readHeader(const TarHeader * hp,
+			int fileCount, char ** fileTable);
+
+
+/*
+ * Local procedures to save files into a tar file.
+ */
+static	void	saveFile(const char * fileName, BOOL seeLinks);
+
+static	void	saveRegularFile(const char * fileName,
+			const struct stat * statbuf);
+
+static	void	saveDirectory(const char * fileName,
+			const struct stat * statbuf);
+
+static	BOOL	wantFileName(const char * fileName,
+			int fileCount, char ** fileTable);
+
+static	void	writeHeader(const char * fileName,
+			const struct stat * statbuf);
+
+static	void	writeTarFile(int fileCount, char ** fileTable);
+static	void	writeTarBlock(const char * buf, int len);
+static	BOOL	putOctal(char * cp, int len, long value);
+extern  const char *    modeString(int mode);
+extern  const char *    timeString(time_t timeVal);
+extern  int             fullWrite(int fd, const char * buf, int len);
+extern  int             fullRead(int fd, char * buf, int len);
+
+
+extern int 
+tar_main(struct FileInfo *unused, int argc, char ** argv)
+{
+	const char *	options;
+
+	argc--;
+	argv++;
+
+	if (argc < 1)
+	{
+		fprintf(stderr, "%s", tar_usage);
+		return 1;
+	}
+
+
+	errorFlag = FALSE;
+	extractFlag = FALSE;
+	createFlag = FALSE;
+	listFlag = FALSE;
+	verboseFlag = FALSE;
+	tostdoutFlag = FALSE;
+	tarName = NULL;
+	tarDev = 0;
+	tarInode = 0;
+	tarFd = -1;
+
+	/*
+	 * Parse the options.
+	 */
+	options = *argv++;
+	argc--;
+
+	if (**argv == '-') {
+		for (; *options; options++)
+		{
+			switch (*options)
+			{
+				case 'f':
+					if (tarName != NULL)
+					{
+						fprintf(stderr, "Only one 'f' option allowed\n");
+
+						return 1;
+					}
+
+					tarName = *argv++;
+					argc--;
+
+					break;
+
+				case 't':
+					listFlag = TRUE;
+					break;
+
+				case 'x':
+					extractFlag = TRUE;
+					break;
+
+				case 'c':
+					createFlag = TRUE;
+					break;
+
+				case 'v':
+					verboseFlag = TRUE;
+					break;
+
+				case 'O':
+					tostdoutFlag = TRUE;
+					break;
+
+				case '-':
+					break;
+
+				default:
+					fprintf(stderr, "Unknown tar flag '%c'\n", *options);
+
+					return 1;
+			}
+		}
+	}
+
+	/*
+	 * Validate the options.
+	 */
+	if (extractFlag + listFlag + createFlag != 1)
+	{
+		fprintf(stderr, "Exactly one of 'c', 'x' or 't' must be specified\n");
+
+		return 1;
+	}
+
+	/*
+	 * Do the correct type of action supplying the rest of the
+	 * command line arguments as the list of files to process.
+	 */
+	if (createFlag)
+		writeTarFile(argc, argv);
+	else
+		readTarFile(argc, argv);
+	if (errorFlag)
+		fprintf(stderr, "\n");
+	return( errorFlag);
+}
+
+
+/*
+ * Read a tar file and extract or list the specified files within it.
+ * If the list is empty than all files are extracted or listed.
+ */
+static void
+readTarFile(int fileCount, char ** fileTable)
+{
+	const char *	cp;
+	int		cc;
+	int		inCc;
+	int		blockSize;
+	char		buf[BUF_SIZE];
+
+	skipFileFlag = FALSE;
+	badHeader = FALSE;
+	warnedRoot = FALSE;
+	eofFlag = FALSE;
+	inHeader = TRUE;
+	inCc = 0;
+	dataCc = 0;
+	outFd = -1;
+	blockSize = sizeof(buf);
+	cp = buf;
+
+	/*
+	 * Open the tar file for reading.
+	 */
+	if ( (tarName==NULL) || !strcmp( tarName, "-") ) {
+		tarFd = STDIN;
+	}
+	else 
+		tarFd = open(tarName, O_RDONLY);
+
+	if (tarFd < 0)
+	{
+		perror(tarName);
+		errorFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * Read blocks from the file until an end of file header block
+	 * has been seen.  (A real end of file from a read is an error.)
+	 */
+	while (!eofFlag)
+	{
+		/*
+		 * Read the next block of data if necessary.
+		 * This will be a large block if possible, which we will
+		 * then process in the small tar blocks.
+		 */
+		if (inCc <= 0)
+		{
+			cp = buf;
+			inCc = fullRead(tarFd, buf, blockSize);
+
+			if (inCc < 0)
+			{
+				perror(tarName);
+				errorFlag=TRUE;
+				goto done;
+			}
+
+			if (inCc == 0)
+			{
+				fprintf(stderr,
+					"Unexpected end of file from \"%s\"",
+					tarName);
+				errorFlag=TRUE;
+				goto done;
+			}
+		}
+
+		/*
+		 * If we are expecting a header block then examine it.
+		 */
+		if (inHeader)
+		{
+			readHeader((const TarHeader *) cp, fileCount, fileTable);
+
+			cp += TAR_BLOCK_SIZE;
+			inCc -= TAR_BLOCK_SIZE;
+
+			continue;
+		}
+
+		/*
+		 * We are currently handling the data for a file.
+		 * Process the minimum of the amount of data we have available
+		 * and the amount left to be processed for the file.
+		 */
+		cc = inCc;
+
+		if (cc > dataCc)
+			cc = dataCc;
+
+		readData(cp, cc);
+
+		/*
+		 * If the amount left isn't an exact multiple of the tar block
+		 * size then round it up to the next block boundary since there
+		 * is padding at the end of the file.
+		 */
+		if (cc % TAR_BLOCK_SIZE)
+			cc += TAR_BLOCK_SIZE - (cc % TAR_BLOCK_SIZE);
+
+		cp += cc;
+		inCc -= cc;
+	}
+
+done:
+	/*
+	 * Close the tar file if needed.
+	 */
+	if ((tarFd >= 0) && (close(tarFd) < 0))
+		perror(tarName);
+
+	/*
+	 * Close the output file if needed.
+	 * This is only done here on a previous error and so no
+	 * message is required on errors.
+	 */
+	if (tostdoutFlag==FALSE) {
+	    if (outFd >= 0)
+		    (void) close(outFd);
+	}
+}
+
+
+/*
+ * Examine the header block that was just read.
+ * This can specify the information for another file, or it can mark
+ * the end of the tar file.
+ */
+static void
+readHeader(const TarHeader * hp, int fileCount, char ** fileTable)
+{
+	int		mode;
+	int		uid;
+	int		gid;
+	int		checkSum;
+	long		size;
+	time_t		mtime;
+	const char *	name;
+	int		cc;
+	BOOL		hardLink;
+	BOOL		softLink;
+
+	/*
+	 * If the block is completely empty, then this is the end of the
+	 * archive file.  If the name is null, then just skip this header.
+	 */
+	name = hp->name;
+
+	if (*name == '\0')
+	{
+		for (cc = TAR_BLOCK_SIZE; cc > 0; cc--)
+		{
+			if (*name++)
+				return;
+		}
+
+		eofFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * There is another file in the archive to examine.
+	 * Extract the encoded information and check it.
+	 */
+	mode = getOctal(hp->mode, sizeof(hp->mode));
+	uid = getOctal(hp->uid, sizeof(hp->uid));
+	gid = getOctal(hp->gid, sizeof(hp->gid));
+	size = getOctal(hp->size, sizeof(hp->size));
+	mtime = getOctal(hp->mtime, sizeof(hp->mtime));
+	checkSum = getOctal(hp->checkSum, sizeof(hp->checkSum));
+
+	if ((mode < 0) || (uid < 0) || (gid < 0) || (size < 0))
+	{
+		if (!badHeader)
+			fprintf(stderr, "Bad tar header, skipping\n");
+
+		badHeader = TRUE;
+
+		return;
+	}
+
+	badHeader = FALSE;
+	skipFileFlag = FALSE;
+
+	/*
+	 * Check for the file modes.
+	 */
+	hardLink = ((hp->typeFlag == TAR_TYPE_HARD_LINK) ||
+		(hp->typeFlag == TAR_TYPE_HARD_LINK - '0'));
+
+	softLink = ((hp->typeFlag == TAR_TYPE_SOFT_LINK) ||
+		(hp->typeFlag == TAR_TYPE_SOFT_LINK - '0'));
+
+	/*
+	 * Check for a directory or a regular file.
+	 */
+	if (name[strlen(name) - 1] == '/')
+		mode |= S_IFDIR;
+	else if ((mode & S_IFMT) == 0)
+		mode |= S_IFREG;
+
+	/*
+	 * Check for absolute paths in the file.
+	 * If we find any, then warn the user and make them relative.
+	 */
+	if (*name == '/')
+	{
+		while (*name == '/')
+			name++;
+
+		if (!warnedRoot)
+		{
+			fprintf(stderr,
+			"Absolute path detected, removing leading slashes\n");
+		}
+
+		warnedRoot = TRUE;
+	}
+
+	/*
+	 * See if we want this file to be restored.
+	 * If not, then set up to skip it.
+	 */
+	if (!wantFileName(name, fileCount, fileTable))
+	{
+		if (!hardLink && !softLink && S_ISREG(mode))
+		{
+			inHeader = (size == 0);
+			dataCc = size;
+		}
+
+		skipFileFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * This file is to be handled.
+	 * If we aren't extracting then just list information about the file.
+	 */
+	if (!extractFlag)
+	{
+		if (verboseFlag)
+		{
+			printf("%s %3d/%-d %9ld %s %s", modeString(mode),
+				uid, gid, size, timeString(mtime), name);
+		}
+		else
+			printf("%s", name);
+
+		if (hardLink)
+			printf(" (link to \"%s\")", hp->linkName);
+		else if (softLink)
+			printf(" (symlink to \"%s\")", hp->linkName);
+		else if (S_ISREG(mode))
+		{
+			inHeader = (size == 0);
+			dataCc = size;
+		}
+
+		printf("\n");
+
+		return;
+	}
+
+	/*
+	 * We really want to extract the file.
+	 */
+	if (verboseFlag)
+		printf("x %s\n", name);
+
+	if (hardLink)
+	{
+		if (link(hp->linkName, name) < 0)
+			perror(name);
+
+		return;
+	}
+
+	if (softLink)
+	{
+#ifdef	S_ISLNK
+		if (symlink(hp->linkName, name) < 0)
+			perror(name);
+#else
+		fprintf(stderr, "Cannot create symbolic links\n");
+#endif
+		return;
+	}
+
+	/*
+	 * If the file is a directory, then just create the path.
+	 */
+	if (S_ISDIR(mode))
+	{
+		createPath(name, mode);
+
+		return;
+	}
+
+	/*
+	 * There is a file to write.
+	 * First create the path to it if necessary with a default permission.
+	 */
+	createPath(name, 0777);
+
+	inHeader = (size == 0);
+	dataCc = size;
+
+	/*
+	 * Start the output file.
+	 */
+	if (tostdoutFlag==TRUE)
+	    outFd = STDOUT;
+	else
+	    outFd = open(name, O_WRONLY | O_CREAT | O_TRUNC, mode);
+
+	if (outFd < 0)
+	{
+		perror(name);
+		skipFileFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * If the file is empty, then that's all we need to do.
+	 */
+	if (size == 0 && tostdoutFlag == FALSE)
+	{
+		(void) close(outFd);
+		outFd = -1;
+	}
+}
+
+
+/*
+ * Handle a data block of some specified size that was read.
+ */
+static void
+readData(const char * cp, int count)
+{
+	/*
+	 * Reduce the amount of data left in this file.
+	 * If there is no more data left, then we need to read
+	 * the header again.
+	 */
+	dataCc -= count;
+
+	if (dataCc <= 0)
+		inHeader = TRUE;
+
+	/*
+	 * If we aren't extracting files or this file is being
+	 * skipped then do nothing more.
+	 */
+	if (!extractFlag || skipFileFlag)
+		return;
+
+	/*
+	 * Write the data to the output file.
+	 */
+	if (fullWrite(outFd, cp, count) < 0)
+	{
+		perror(outName);
+		if (tostdoutFlag==FALSE) {
+		    (void) close(outFd);
+		    outFd = -1;
+		}
+		skipFileFlag = TRUE;
+		return;
+	}
+
+	/*
+	 * If the write failed, close the file and disable further
+	 * writes to this file.
+	 */
+	if (dataCc <= 0 && tostdoutFlag==FALSE)
+	{
+		if (close(outFd))
+			perror(outName);
+
+		outFd = -1;
+	}
+}
+
+
+/*
+ * Write a tar file containing the specified files.
+ */
+static void
+writeTarFile(int fileCount, char ** fileTable)
+{
+	struct	stat	statbuf;
+
+	/*
+	 * Make sure there is at least one file specified.
+	 */
+	if (fileCount <= 0)
+	{
+		fprintf(stderr, "No files specified to be saved\n");
+		errorFlag=TRUE;
+	}
+
+	/*
+	 * Create the tar file for writing.
+	 */
+	if ( (tarName==NULL) || !strcmp( tarName, "-") ) {
+		tostdoutFlag = TRUE;
+		tarFd = STDOUT;
+	}
+	else 
+		tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+
+	if (tarFd < 0)
+	{
+		perror(tarName);
+		errorFlag=TRUE;
+		return;
+	}
+
+	/*
+	 * Get the device and inode of the tar file for checking later.
+	 */
+	if (fstat(tarFd, &statbuf) < 0)
+	{
+		perror(tarName);
+		errorFlag = TRUE;
+		goto done;
+	}
+
+	tarDev = statbuf.st_dev;
+	tarInode = statbuf.st_ino;
+
+	/*
+	 * Append each file name into the archive file.
+	 * Follow symbolic links for these top level file names.
+	 */
+	while (!errorFlag && (fileCount-- > 0))
+	{
+		saveFile(*fileTable++, FALSE);
+	}
+
+	/*
+	 * Now write an empty block of zeroes to end the archive.
+	 */
+	writeTarBlock("", 1);
+
+
+done:
+	/*
+	 * Close the tar file and check for errors if it was opened.
+	 */
+	if ( (tostdoutFlag==FALSE) && (tarFd >= 0) && (close(tarFd) < 0))
+		perror(tarName);
+}
+
+
+/*
+ * Save one file into the tar file.
+ * If the file is a directory, then this will recursively save all of
+ * the files and directories within the directory.  The seeLinks
+ * flag indicates whether or not we want to see symbolic links as
+ * they really are, instead of blindly following them.
+ */
+static void
+saveFile(const char * fileName, BOOL seeLinks)
+{
+	int		status;
+	int		mode;
+	struct stat	statbuf;
+
+	if (verboseFlag)
+		printf("a %s\n", fileName);
+
+	/*
+	 * Check that the file name will fit in the header.
+	 */
+	if (strlen(fileName) >= TAR_NAME_SIZE)
+	{
+		fprintf(stderr, "%s: File name is too long\n", fileName);
+
+		return;
+	}
+
+	/*
+	 * Find out about the file.
+	 */
+#ifdef	S_ISLNK
+	if (seeLinks)
+		status = lstat(fileName, &statbuf);
+	else
+#endif
+		status = stat(fileName, &statbuf);
+
+	if (status < 0)
+	{
+		perror(fileName);
+
+		return;
+	}
+
+	/*
+	 * Make sure we aren't trying to save our file into itself.
+	 */
+	if ((statbuf.st_dev == tarDev) && (statbuf.st_ino == tarInode))
+	{
+		fprintf(stderr, "Skipping saving of archive file itself\n");
+
+		return;
+	}
+
+	/*
+	 * Check the type of file.
+	 */
+	mode = statbuf.st_mode;
+
+	if (S_ISDIR(mode))
+	{
+		saveDirectory(fileName, &statbuf);
+
+		return;
+	}
+
+	if (S_ISREG(mode))
+	{
+		saveRegularFile(fileName, &statbuf);
+
+		return;
+	}
+
+	/*
+	 * The file is a strange type of file, ignore it.
+	 */
+	fprintf(stderr, "%s: not a directory or regular file\n", fileName);
+}
+
+
+/*
+ * Save a regular file to the tar file.
+ */
+static void
+saveRegularFile(const char * fileName, const struct stat * statbuf)
+{
+	BOOL		sawEof;
+	int		fileFd;
+	int		cc;
+	int		dataCount;
+	long		fullDataCount;
+	char		data[TAR_BLOCK_SIZE * 16];
+
+	/*
+	 * Open the file for reading.
+	 */
+	fileFd = open(fileName, O_RDONLY);
+
+	if (fileFd < 0)
+	{
+		perror(fileName);
+
+		return;
+	}
+
+	/*
+	 * Write out the header for the file.
+	 */
+	writeHeader(fileName, statbuf);
+
+	/*
+	 * Write the data blocks of the file.
+	 * We must be careful to write the amount of data that the stat
+	 * buffer indicated, even if the file has changed size.  Otherwise
+	 * the tar file will be incorrect.
+	 */
+	fullDataCount = statbuf->st_size;
+	sawEof = FALSE;
+
+	while (fullDataCount > 0)
+	{
+		/*
+		 * Get the amount to write this iteration which is
+		 * the minumum of the amount left to write and the
+		 * buffer size.
+		 */
+		dataCount = sizeof(data);
+
+		if (dataCount > fullDataCount)
+			dataCount = (int) fullDataCount;
+
+		/*
+		 * Read the data from the file if we haven't seen the
+		 * end of file yet.
+		 */
+		cc = 0;
+
+		if (!sawEof)
+		{
+			cc = fullRead(fileFd, data, dataCount);
+
+			if (cc < 0)
+			{
+				perror(fileName);
+
+				(void) close(fileFd);
+				errorFlag = TRUE;
+
+				return;
+			}
+
+			/*
+			 * If the file ended too soon, complain and set
+			 * a flag so we will zero fill the rest of it.
+			 */
+			if (cc < dataCount)
+			{
+				fprintf(stderr,
+					"%s: Short read - zero filling",
+					fileName);
+
+				sawEof = TRUE;
+			}
+		}
+
+		/*
+		 * Zero fill the rest of the data if necessary.
+		 */
+		if (cc < dataCount)
+			memset(data + cc, 0, dataCount - cc);
+
+		/*
+		 * Write the buffer to the TAR file.
+		 */
+		writeTarBlock(data, dataCount);
+
+		fullDataCount -= dataCount;
+	}
+
+	/*
+	 * Close the file.
+	 */
+	if ( (tostdoutFlag==FALSE) && close(fileFd) < 0)
+		fprintf(stderr, "%s: close: %s\n", fileName, strerror(errno));
+}
+
+
+/*
+ * Save a directory and all of its files to the tar file.
+ */
+static void
+saveDirectory(const char * dirName, const struct stat * statbuf)
+{
+	DIR *		dir;
+	struct dirent *	entry;
+	BOOL		needSlash;
+	char		fullName[PATH_LEN];
+
+	/*
+	 * Construct the directory name as used in the tar file by appending
+	 * a slash character to it.
+	 */
+	strcpy(fullName, dirName);
+	strcat(fullName, "/");
+
+	/*
+	 * Write out the header for the directory entry.
+	 */
+	writeHeader(fullName, statbuf);
+
+	/*
+	 * Open the directory.
+	 */
+	dir = opendir(dirName);
+
+	if (dir == NULL)
+	{
+		fprintf(stderr, "Cannot read directory \"%s\": %s\n",
+			dirName, strerror(errno));
+
+		return;
+	}
+
+	/*
+	 * See if a slash is needed.
+	 */
+	needSlash = (*dirName && (dirName[strlen(dirName) - 1] != '/'));
+
+	/*
+	 * Read all of the directory entries and check them,
+	 * except for the current and parent directory entries.
+	 */
+	while (!errorFlag && ((entry = readdir(dir)) != NULL))
+	{
+		if ((strcmp(entry->d_name, ".") == 0) ||
+			(strcmp(entry->d_name, "..") == 0))
+		{
+			continue;
+		}
+
+		/*
+		 * Build the full path name to the file.
+		 */
+		strcpy(fullName, dirName);
+
+		if (needSlash)
+			strcat(fullName, "/");
+
+		strcat(fullName, entry->d_name);
+
+		/*
+		 * Write this file to the tar file, noticing whether or not
+		 * the file is a symbolic link.
+		 */
+		saveFile(fullName, TRUE);
+	}
+
+	/*
+	 * All done, close the directory.
+	 */
+	closedir(dir);
+}
+
+
+/*
+ * Write a tar header for the specified file name and status.
+ * It is assumed that the file name fits.
+ */
+static void
+writeHeader(const char * fileName, const struct stat * statbuf)
+{
+	long			checkSum;
+	const unsigned char *	cp;
+	int			len;
+	TarHeader		header;
+
+	/*
+	 * Zero the header block in preparation for filling it in.
+	 */
+	memset((char *) &header, 0, sizeof(header));
+
+	/*
+	 * Fill in the header.
+	 */
+	strcpy(header.name, fileName);
+
+	strncpy(header.magic, TAR_MAGIC, sizeof(header.magic));
+	strncpy(header.version, TAR_VERSION, sizeof(header.version));
+
+	putOctal(header.mode, sizeof(header.mode), statbuf->st_mode & 0777);
+	putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
+	putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
+	putOctal(header.size, sizeof(header.size), statbuf->st_size);
+	putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
+
+	header.typeFlag = TAR_TYPE_REGULAR;
+
+	/*
+	 * Calculate and store the checksum.
+	 * This is the sum of all of the bytes of the header,
+	 * with the checksum field itself treated as blanks.
+	 */
+	memset(header.checkSum, ' ', sizeof(header.checkSum));
+
+	cp = (const unsigned char *) &header;
+	len = sizeof(header);
+	checkSum = 0;
+
+	while (len-- > 0)
+		checkSum += *cp++;
+
+	putOctal(header.checkSum, sizeof(header.checkSum), checkSum);
+
+	/*
+	 * Write the tar header.
+	 */
+	writeTarBlock((const char *) &header, sizeof(header));
+}
+
+
+/*
+ * Write data to one or more blocks of the tar file.
+ * The data is always padded out to a multiple of TAR_BLOCK_SIZE.
+ * The errorFlag static variable is set on an error.
+ */
+static void
+writeTarBlock(const char * buf, int len)
+{
+	int	partialLength;
+	int	completeLength;
+	char	fullBlock[TAR_BLOCK_SIZE];
+
+	/*
+	 * If we had a write error before, then do nothing more.
+	 */
+	if (errorFlag)
+		return;
+
+	/*
+	 * Get the amount of complete and partial blocks.
+	 */
+	partialLength = len % TAR_BLOCK_SIZE;
+	completeLength = len - partialLength;
+
+	/*
+	 * Write all of the complete blocks.
+	 */
+	if ((completeLength > 0) && !fullWrite(tarFd, buf, completeLength))
+	{
+		perror(tarName);
+
+		errorFlag = TRUE;
+
+		return;
+	}
+
+	/*
+	 * If there are no partial blocks left, we are done.
+	 */
+	if (partialLength == 0)
+		return;
+
+	/*
+	 * Copy the partial data into a complete block, and pad the rest
+	 * of it with zeroes.
+	 */
+	memcpy(fullBlock, buf + completeLength, partialLength);
+	memset(fullBlock + partialLength, 0, TAR_BLOCK_SIZE - partialLength);
+
+	/*
+	 * Write the last complete block.
+	 */
+	if (!fullWrite(tarFd, fullBlock, TAR_BLOCK_SIZE))
+	{
+		perror(tarName);
+
+		errorFlag = TRUE;
+	}
+}
+
+
+/*
+ * Attempt to create the directories along the specified path, except for
+ * the final component.  The mode is given for the final directory only,
+ * while all previous ones get default protections.  Errors are not reported
+ * here, as failures to restore files can be reported later.
+ */
+static void
+createPath(const char * name, int mode)
+{
+	char *	cp;
+	char *	cpOld;
+	char	buf[TAR_NAME_SIZE];
+
+	strcpy(buf, name);
+
+	cp = strchr(buf, '/');
+
+	while (cp)
+	{
+		cpOld = cp;
+		cp = strchr(cp + 1, '/');
+
+		*cpOld = '\0';
+
+		if (mkdir(buf, cp ? 0777 : mode) == 0)
+			printf("Directory \"%s\" created\n", buf);
+
+		*cpOld = '/';
+	}
+}
+
+
+/*
+ * Read an octal value in a field of the specified width, with optional
+ * spaces on both sides of the number and with an optional null character
+ * at the end.  Returns -1 on an illegal format.
+ */
+static long
+getOctal(const char * cp, int len)
+{
+	long	val;
+
+	while ((len > 0) && (*cp == ' '))
+	{
+		cp++;
+		len--;
+	}
+
+	if ((len == 0) || !isOctal(*cp))
+		return -1;
+
+	val = 0;
+
+	while ((len > 0) && isOctal(*cp))
+	{
+		val = val * 8 + *cp++ - '0';
+		len--;
+	}
+
+	while ((len > 0) && (*cp == ' '))
+	{
+		cp++;
+		len--;
+	}
+
+	if ((len > 0) && *cp)
+		return -1;
+
+	return val;
+}
+
+
+/*
+ * Put an octal string into the specified buffer.
+ * The number is zero and space padded and possibly null padded.
+ * Returns TRUE if successful.
+ */
+static BOOL
+putOctal(char * cp, int len, long value)
+{
+	int	tempLength;
+	char *	tempString;
+	char	tempBuffer[32];
+
+	/*
+	 * Create a string of the specified length with an initial space,
+	 * leading zeroes and the octal number, and a trailing null.
+	 */
+	tempString = tempBuffer;
+
+	sprintf(tempString, " %0*lo", len - 2, value);
+
+	tempLength = strlen(tempString) + 1;
+
+	/*
+	 * If the string is too large, suppress the leading space.
+	 */
+	if (tempLength > len)
+	{
+		tempLength--;
+		tempString++;
+	}
+
+	/*
+	 * If the string is still too large, suppress the trailing null.
+	 */
+	if (tempLength > len)
+		tempLength--;
+
+	/*
+	 * If the string is still too large, fail.
+	 */
+	if (tempLength > len)
+		return FALSE;
+
+	/*
+	 * Copy the string to the field.
+	 */
+	memcpy(cp, tempString, len);
+
+	return TRUE;
+}
+
+
+/*
+ * See if the specified file name belongs to one of the specified list
+ * of path prefixes.  An empty list implies that all files are wanted.
+ * Returns TRUE if the file is selected.
+ */
+static BOOL
+wantFileName(const char * fileName, int fileCount, char ** fileTable)
+{
+	const char *	pathName;
+	int		fileLength;
+	int		pathLength;
+
+	/*
+	 * If there are no files in the list, then the file is wanted.
+	 */
+	if (fileCount == 0)
+		return TRUE;
+
+	fileLength = strlen(fileName);
+
+	/*
+	 * Check each of the test paths.
+	 */
+	while (fileCount-- > 0)
+	{
+		pathName = *fileTable++;
+
+		pathLength = strlen(pathName);
+
+		if (fileLength < pathLength)
+			continue;
+
+		if (memcmp(fileName, pathName, pathLength) != 0)
+			continue;
+
+		if ((fileLength == pathLength) ||
+			(fileName[pathLength] == '/'))
+		{
+			return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+
+
+
+/*
+ * Return the standard ls-like mode string from a file mode.
+ * This is static and so is overwritten on each call.
+ */
+const char *
+modeString(int mode)
+{
+	static	char	buf[12];
+
+	strcpy(buf, "----------");
+
+	/*
+	 * Fill in the file type.
+	 */
+	if (S_ISDIR(mode))
+		buf[0] = 'd';
+	if (S_ISCHR(mode))
+		buf[0] = 'c';
+	if (S_ISBLK(mode))
+		buf[0] = 'b';
+	if (S_ISFIFO(mode))
+		buf[0] = 'p';
+#ifdef	S_ISLNK
+	if (S_ISLNK(mode))
+		buf[0] = 'l';
+#endif
+#ifdef	S_ISSOCK
+	if (S_ISSOCK(mode))
+		buf[0] = 's';
+#endif
+
+	/*
+	 * Now fill in the normal file permissions.
+	 */
+	if (mode & S_IRUSR)
+		buf[1] = 'r';
+	if (mode & S_IWUSR)
+		buf[2] = 'w';
+	if (mode & S_IXUSR)
+		buf[3] = 'x';
+	if (mode & S_IRGRP)
+		buf[4] = 'r';
+	if (mode & S_IWGRP)
+		buf[5] = 'w';
+	if (mode & S_IXGRP)
+		buf[6] = 'x';
+	if (mode & S_IROTH)
+		buf[7] = 'r';
+	if (mode & S_IWOTH)
+		buf[8] = 'w';
+	if (mode & S_IXOTH)
+		buf[9] = 'x';
+
+	/*
+	 * Finally fill in magic stuff like suid and sticky text.
+	 */
+	if (mode & S_ISUID)
+		buf[3] = ((mode & S_IXUSR) ? 's' : 'S');
+	if (mode & S_ISGID)
+		buf[6] = ((mode & S_IXGRP) ? 's' : 'S');
+	if (mode & S_ISVTX)
+		buf[9] = ((mode & S_IXOTH) ? 't' : 'T');
+
+	return buf;
+}
+
+
+/*
+ * Get the time string to be used for a file.
+ * This is down to the minute for new files, but only the date for old files.
+ * The string is returned from a static buffer, and so is overwritten for
+ * each call.
+ */
+const char *
+timeString(time_t timeVal)
+{
+	time_t		now;
+	char *		str;
+	static	char	buf[26];
+
+	time(&now);
+
+	str = ctime(&timeVal);
+
+	strcpy(buf, &str[4]);
+	buf[12] = '\0';
+
+	if ((timeVal > now) || (timeVal < now - 365*24*60*60L))
+	{
+		strcpy(&buf[7], &str[20]);
+		buf[11] = '\0';
+	}
+
+	return buf;
+}
+
+
+
+/*
+ * Write all of the supplied buffer out to a file.
+ * This does multiple writes as necessary.
+ * Returns the amount written, or -1 on an error.
+ */
+int
+fullWrite(int fd, const char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = write(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+/*
+ * Read all of the supplied buffer from a file.
+ * This does multiple reads as necessary.
+ * Returns the amount read, or -1 on an error.
+ * A short read is returned on an end of file.
+ */
+int
+fullRead(int fd, char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = read(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		if (cc == 0)
+			break;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+
+#endif
+/* END CODE */
+
+
diff --git a/touch.c b/touch.c
new file mode 100644
index 000000000..ca4b98108
--- /dev/null
+++ b/touch.c
@@ -0,0 +1,20 @@
+#include "internal.h"
+#include <sys/types.h>
+#include <stdio.h>
+#include <utime.h>
+
+const char	touch_usage[] = "touch [-c] file [file ...]\n"
+"\n"
+"\tUpdate the last-modified date on the given file[s].\n";
+
+extern int
+touch_fn(const struct FileInfo * i)
+{
+	if ( (utime(i->source, 0) != 0) && (i->create != 1) ) {
+		if ( fopen(i->source, "w") == NULL ) {
+			name_and_error(i->source);
+			return 1;
+		}
+	}
+	return 0;
+}
diff --git a/umount.c b/umount.c
new file mode 100644
index 000000000..4efc9f9d9
--- /dev/null
+++ b/umount.c
@@ -0,0 +1,135 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+
+const char	umount_usage[] = "umount {filesystem|directory}\n"
+"\tumount -a\n"
+"\n"
+"\tUnmount a filesystem.\n"
+"\t-a:\tUnmounts all mounted filesystems.\n";
+
+static char *
+stralloc(const char * string)
+{
+	int	length = strlen(string) + 1;
+	char *	n = malloc(length);
+	memcpy(n, string, length);
+	return n;
+}
+
+extern void
+erase_mtab(const char * name)
+{
+	struct mntent	entries[100];
+	int		count = 0;
+	FILE *		mountTable = setmntent("/etc/mtab", "r");
+	struct mntent *	m;
+
+	if ( mountTable == 0
+	 && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+		name_and_error("/etc/mtab");
+		return;
+	}
+
+	while ( (m = getmntent(mountTable)) != 0 ) {
+		entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+		entries[count].mnt_dir = stralloc(m->mnt_dir);
+		entries[count].mnt_type = stralloc(m->mnt_type);
+		entries[count].mnt_opts = stralloc(m->mnt_opts);
+		entries[count].mnt_freq = m->mnt_freq;
+		entries[count].mnt_passno = m->mnt_passno;
+		count++;
+	}
+	endmntent(mountTable);
+	if ( (mountTable = setmntent("/etc/mtab", "w")) ) {
+		int	i;
+		for ( i = 0; i < count; i++ ) {
+			int result = ( strcmp(entries[i].mnt_fsname, name) == 0
+			 || strcmp(entries[i].mnt_dir, name) == 0 );
+
+			if ( result )
+				continue;
+			else
+				addmntent(mountTable, &entries[i]);
+		}
+		endmntent(mountTable);
+	}
+	else if ( errno != EROFS )
+		name_and_error("/etc/mtab");
+}
+
+static int
+umount_all(int noMtab)
+{
+	struct mntent	entries[100];
+	int				count = 0;
+	FILE *			mountTable = setmntent("/etc/mtab", "r");
+	struct mntent *	m;
+	int				status = 0;
+
+	if ( mountTable == 0
+	 && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+		name_and_error("/etc/mtab");
+		return 1;
+	}
+
+	while ( (m = getmntent(mountTable)) != 0 ) {
+		entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+		count++;
+	}
+	endmntent(mountTable);
+
+	while ( count > 0 ) {
+		int result = umount(entries[--count].mnt_fsname) == 0;
+		/* free(entries[count].mnt_fsname); */
+		if ( result ) {
+			if ( !noMtab )
+				erase_mtab(entries[count].mnt_fsname);
+		}
+		else {
+			status = 1;
+			name_and_error(entries[count].mnt_fsname);
+		}
+	}
+	return status;
+}
+
+extern int
+do_umount(const char * name, int noMtab)
+{
+	if ( umount(name) == 0 ) {
+		if ( !noMtab )
+			erase_mtab(name);
+		return 0;
+	}
+	return 1;
+}
+
+extern int
+umount_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int	noMtab = 0;
+
+	if ( argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'a':
+			return umount_all(noMtab);
+		case 'n':
+			noMtab = 1;
+			break;
+		default:
+			usage(umount_usage);
+			return 1;
+		}
+	}
+	if ( do_umount(argv[1],noMtab) != 0 ) {
+		fprintf(stderr, "%s: %s.\n", argv[1], strerror(errno));
+		return 1;
+	}
+	return 0;
+}
diff --git a/update.c b/update.c
new file mode 100644
index 000000000..f3b7fc0c8
--- /dev/null
+++ b/update.c
@@ -0,0 +1,48 @@
+#include "internal.h"
+#include <linux/unistd.h>
+
+const char	update_usage[] = "update\n"
+"\n"
+"\tFlush buffered data to the disk devices every 30 seconds.\n";
+
+#if defined(__GLIBC__)
+#include <sys/kdaemon.h>
+#else
+_syscall2(int, bdflush, int, func, int, data);
+#endif /* __GLIBC__ */
+
+extern int
+update_main(struct FileInfo * i, int argc, char * * argv)
+{
+	/*
+	 * Update is actually two daemons, bdflush and update.
+	 */
+	int	pid;
+
+	pid = fork();
+	if ( pid < 0 )
+		return pid;
+	else if ( pid == 0 ) {
+		/*
+		 * This is no longer necessary since 1.3.5x, but it will harmlessly
+		 * exit if that is the case.
+		 */
+		strcpy(argv[0], "bdflush (update)");
+		argv[1] = 0;
+		argv[2] = 0;
+		bdflush(1, 0);
+		_exit(0);
+	}
+	pid = fork();
+	if ( pid < 0 )
+		return pid;
+	else if ( pid == 0 ) {
+		argv[0] = "update";
+		for ( ; ; ) {
+			sync();
+			sleep(30);
+		}
+	}
+
+	return 0;
+}
diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
new file mode 100644
index 000000000..a63fa3d39
--- /dev/null
+++ b/util-linux/dmesg.c
@@ -0,0 +1,95 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+/* dmesg.c -- Print out the contents of the kernel ring buffer
+ * Created: Sat Oct  9 16:19:47 1993
+ * Revised: Thu Oct 28 21:52:17 1993 by faith@cs.unc.edu
+ * Copyright 1993 Theodore Ts'o (tytso@athena.mit.edu)
+ * This program comes with ABSOLUTELY NO WARRANTY.
+ * Modifications by Rick Sladkey (jrs@world.std.com)
+ * from util-linux; adapted for busybox
+ */
+
+#include <linux/unistd.h>
+#include <stdio.h>
+#include <getopt.h>
+
+#define __NR_klog __NR_syslog
+
+#if defined(__GLIBC__)
+#include <sys/klog.h>
+#define klog klogctl
+#else
+static inline _syscall3(int,klog,int,type,char *,b,int,len)
+#endif /* __GLIBC__ */
+
+const char			dmesg_usage[] = "dmesg";
+
+int
+dmesg_main(struct FileInfo * info, int argc, char * * argv)
+{
+
+   char buf[4096];
+   int  i;
+   int  n;
+   int  c;
+   int  level = 0;
+   int  lastc;
+   int  cmd = 3;
+
+   while ((c = getopt( argc, argv, "cn:" )) != EOF) {
+      switch (c) {
+      case 'c':
+	 cmd = 4;
+	 break;
+      case 'n':
+	 cmd = 8;
+	 level = atoi(optarg);
+	 break;
+      case '?':
+      default:
+	 usage(dmesg_usage);
+	 exit(1);
+      }
+   }
+   argc -= optind;
+   argv += optind;
+   
+   if (argc > 1) {
+      usage(dmesg_usage);
+      exit(1);
+   }
+
+   if (cmd == 8) {
+      n = klog( cmd, NULL, level );
+      if (n < 0) {
+	 perror( "klog" );
+	 exit( 1 );
+      }
+      exit( 0 );
+   }
+
+   n = klog( cmd, buf, sizeof( buf ) );
+   if (n < 0) {
+      perror( "klog" );
+      exit( 1 );
+   }
+
+   lastc = '\n';
+   for (i = 0; i < n; i++) {
+      if ((i == 0 || buf[i - 1] == '\n') && buf[i] == '<') {
+	 i++;
+	 while (buf[i] >= '0' && buf[i] <= '9')
+	    i++;
+	 if (buf[i] == '>')
+	    i++;
+      }
+      lastc = buf[i];
+      putchar( lastc );
+   }
+   if (lastc != '\n')
+      putchar( '\n' );
+   return 0;
+}
diff --git a/util-linux/fdflush.c b/util-linux/fdflush.c
new file mode 100644
index 000000000..a15e9b3f7
--- /dev/null
+++ b/util-linux/fdflush.c
@@ -0,0 +1,36 @@
+#include "internal.h"
+#include <sys/ioctl.h>
+#include <linux/fd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+const char			fdflush_usage[] = "fdflush device";
+
+int 
+fdflush(const char *filename) 
+{
+	int	status;
+	int	fd = open(filename, 0);
+
+	if ( fd < 0 ) {
+		name_and_error(filename);
+		return 1;
+	}
+
+	status = ioctl(fd, FDFLUSH, 0);
+	close(fd);
+
+	if ( status != 0 ) {
+		name_and_error(filename);
+		return 1;
+	}
+	return 0;
+}
+
+
+int
+fdflush_fn(const struct FileInfo * i)
+{
+  return fdflush(i->source);
+}
diff --git a/util-linux/mkswap.c b/util-linux/mkswap.c
new file mode 100644
index 000000000..f797d1395
--- /dev/null
+++ b/util-linux/mkswap.c
@@ -0,0 +1,253 @@
+#include "internal.h"
+/*
+ * mkswap.c - set up a linux swap device
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * 20.12.91  -	time began. Got VM working yesterday by doing this by hand.
+ *
+ * Usage: mkswap [-c] device [size-in-blocks]
+ *
+ *	-c for readablility checking (use it unless you are SURE!)
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-).
+ *
+ * Patches from jaggy@purplet.demon.co.uk (Mike Jagdis) to make the
+ * size-in-blocks parameter optional added Wed Feb  8 10:33:43 1995.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <asm/page.h>
+#include <linux/fs.h>
+
+#ifndef __linux__
+# define volatile
+#endif
+
+#define TEST_BUFFER_PAGES 8
+
+const char	mkswap_usage[] = "mkswap [-c] partition [block-count]\n"
+"\n"
+"\tPrepare a disk partition to be used as a swap partition.\n"
+"\tThe default block count is the size of the entire partition.\n"
+"\n"
+"\t-c:\tCheck for read-ability.\n"
+"\tblock-count\tUse only this many blocks.\n";
+
+static const char * program_name = "mkswap";
+static const char * device_name = NULL;
+static int DEV = -1;
+static long PAGES = 0;
+static int do_check = 0;
+static int badpages = 0;
+
+
+static long bit_test_and_set (unsigned int *addr, unsigned int nr)
+{
+	unsigned int r, m;
+
+	addr += nr / (8 * sizeof(int));
+	r = *addr;
+	m = 1 << (nr & (8 * sizeof(int) - 1));
+	*addr = r | m;
+	return (r & m) != 0;
+}
+
+static int bit_test_and_clear (unsigned int *addr, unsigned int nr)
+{
+	unsigned int r, m;
+
+	addr += nr / (8 * sizeof(int));
+	r = *addr;
+	m = 1 << (nr & (8 * sizeof(int) - 1));
+	*addr = r & ~m;
+	return (r & m) != 0;
+}
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string)
+{
+	fprintf(stderr,fmt_string,program_name,device_name);
+	exit(1);
+}
+
+#define die(str) fatal_error("%s: " str "\n")
+
+static void check_blocks(int * signature_page)
+{
+	unsigned int current_page;
+	int do_seek = 1;
+	char buffer[PAGE_SIZE];
+
+	current_page = 0;
+	while (current_page < PAGES) {
+		if (!do_check) {
+			bit_test_and_set(signature_page,current_page++);
+			continue;
+		} else {
+			printf("\r%d", current_page);
+		}
+		if (do_seek && lseek(DEV,current_page*PAGE_SIZE,SEEK_SET) !=
+		current_page*PAGE_SIZE)
+			die("seek failed in check_blocks");
+		if ( (do_seek = (PAGE_SIZE != read(DEV, buffer, PAGE_SIZE))) ) {
+			bit_test_and_clear(signature_page,current_page++);
+			badpages++;
+			continue;
+		}
+		bit_test_and_set(signature_page,current_page++);
+	}
+	if (do_check)
+		printf("\n");
+	if (badpages)
+		printf("%d bad page%s\n",badpages,(badpages>1)?"s":"");
+}
+
+static long valid_offset (int fd, int offset)
+{
+	char ch;
+
+	if (lseek (fd, offset, 0) < 0)
+		return 0;
+	if (read (fd, &ch, 1) < 1)
+		return 0;
+	return 1;
+}
+
+static int count_blocks (int fd)
+{
+	int high, low;
+
+	low = 0;
+	for (high = 1; valid_offset (fd, high); high *= 2)
+		low = high;
+	while (low < high - 1)
+	{
+		const int mid = (low + high) / 2;
+
+		if (valid_offset (fd, mid))
+			low = mid;
+		else
+			high = mid;
+	}
+	valid_offset (fd, 0);
+	return (low + 1);
+}
+
+static int get_size(const char  *file)
+{
+	int	fd;
+	int	size;
+
+	fd = open(file, O_RDWR);
+	if (fd < 0) {
+		perror(file);
+		exit(1);
+	}
+	if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+		close(fd);
+		return (size * 512);
+	}
+		
+	size = count_blocks(fd);
+	close(fd);
+	return size;
+}
+
+int
+mkswap(char *device_name, int pages, int check)
+  {
+	struct stat statbuf;
+	int goodpages;
+	int signature_page[PAGE_SIZE/sizeof(int)];
+
+	PAGES = pages;
+	do_check = check;
+
+	memset(signature_page,0,PAGE_SIZE);
+
+	if (device_name && !PAGES) {
+		PAGES = get_size(device_name) / PAGE_SIZE;
+	}
+	if (!device_name || PAGES<10) {
+		fprintf(stderr,
+			"%s: error: swap area needs to be at least %ldkB\n",
+			program_name, 10 * PAGE_SIZE / 1024);
+		/*		usage(mkswap_usage); */
+		exit(1);
+	}
+	if (PAGES > 8 * (PAGE_SIZE - 10)) {
+	        PAGES = 8 * (PAGE_SIZE - 10);
+		fprintf(stderr, "%s: warning: truncating swap area to %ldkB\n",
+			program_name, PAGES * PAGE_SIZE / 1024);
+	}
+	DEV = open(device_name,O_RDWR);
+	if (DEV < 0 || fstat(DEV, &statbuf) < 0) {
+		perror(device_name);
+		exit(1);
+	}
+	if (!S_ISBLK(statbuf.st_mode))
+		do_check=0;
+	else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+		die("Will not try to make swapdevice on '%s'");
+	check_blocks(signature_page);
+	if (!bit_test_and_clear(signature_page,0))
+		die("fatal: first page unreadable");
+	goodpages = PAGES - badpages - 1;
+	if (goodpages <= 0)
+		die("Unable to set up swap-space: unreadable");
+	printf("Setting up swapspace, size = %ld bytes\n",goodpages*PAGE_SIZE);
+	strncpy((char*)signature_page+PAGE_SIZE-10,"SWAP-SPACE",10);
+	if (lseek(DEV, 0, SEEK_SET))
+		die("unable to rewind swap-device");
+	if (PAGE_SIZE != write(DEV, signature_page, PAGE_SIZE))
+		die("unable to write signature page");
+
+	close(DEV);
+	return 0;
+}
+
+int mkswap_main(struct FileInfo * unnecessary, int argc, char ** argv)
+{
+	char * tmp;
+	long int pages=0;
+	int check=0;
+
+	if (argc && *argv)
+		program_name = *argv;
+	while (argc > 1) {
+		argv++;
+		argc--;
+		if (argv[0][0] != '-')
+			if (device_name) {
+				pages = strtol(argv[0],&tmp,0)>>(PAGE_SHIFT-10);
+				if (*tmp) {
+				  	usage(mkswap_usage);
+					exit(1);
+				}
+			} else
+				device_name = argv[0];
+		else while (*++argv[0])
+			switch (argv[0][0]) {
+				case 'c': check=1; break;
+				default: usage(mkswap_usage);
+					exit(1);
+			}
+	}
+	return mkswap(device_name, pages, check);
+}
diff --git a/util-linux/more.c b/util-linux/more.c
new file mode 100644
index 000000000..65409999b
--- /dev/null
+++ b/util-linux/more.c
@@ -0,0 +1,110 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#define BB_MORE_TERM
+
+#ifdef BB_MORE_TERM
+	#include <termios.h>
+	#include <signal.h>
+
+	FILE *cin;
+	struct termios initial_settings, new_settings;
+
+	void gotsig(int sig) { 
+		tcsetattr(fileno(cin), TCSANOW, &initial_settings);
+		exit(0);
+	}
+#endif
+
+const char	more_usage[] = "more [file]\n"
+"\n"
+"\tDisplays a file, one page at a time.\n"
+"\tIf there are no arguments, the standard input is displayed.\n";
+
+extern int
+more_fn(const struct FileInfo * i)
+{
+	FILE *	f = stdin;
+	int	c;
+	int	lines = 0, tlines = 0;
+	int	next_page = 0;
+	int	rows = 24, cols = 79;
+#ifdef BB_MORE_TERM
+	long sizeb = 0;
+	struct stat st;	
+	struct winsize win;
+#endif
+	
+	if ( i ) {
+		if (! (f = fopen(i->source, "r") )) {
+			name_and_error(i->source);
+			return 1;
+		}
+		fstat(fileno(f), &st);
+		sizeb = st.st_size / 100;
+	}
+		
+#ifdef BB_MORE_TERM
+	cin = fopen("/dev/tty", "r");
+	tcgetattr(fileno(cin),&initial_settings);
+	new_settings = initial_settings;
+	new_settings.c_lflag &= ~ICANON;
+	new_settings.c_lflag &= ~ECHO;
+	tcsetattr(fileno(cin), TCSANOW, &new_settings);
+	
+	(void) signal(SIGINT, gotsig);
+
+	ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
+	if (win.ws_row > 4)	rows = win.ws_row - 2;
+	if (win.ws_col > 0)	cols = win.ws_col - 1;
+
+
+#endif
+
+	while ( (c = getc(f)) != EOF ) {
+		if ( next_page ) {
+			char	garbage;
+			int	len;
+			tlines += lines;
+			lines = 0;
+			next_page = 0;		//Percentage is based on bytes, not lines.
+			if ( i && i->source )	//It is not very acurate, but still useful.
+				len = printf("%s - %%%2ld - line: %d", i->source, (ftell(f) - sizeb - sizeb) / sizeb, tlines);
+			else
+				len = printf("line: %d", tlines);
+				
+			fflush(stdout);
+#ifndef BB_MORE_TERM		
+			read(2, &garbage, 1);
+#else				
+			do {
+				fread(&garbage, 1, 1, cin);	
+			} while ((garbage != ' ') && (garbage != '\n'));
+			
+			if (garbage == '\n') {
+				lines = rows;
+				tlines -= rows;
+			}					
+			garbage = 0;				
+			//clear line, since tabs don't overwrite.
+			while(len-- > 0)	putchar('\b');
+			while(len++ < cols)	putchar(' ');
+			while(len-- > 0)	putchar('\b');
+			fflush(stdout);
+#endif								
+		}
+		putchar(c);
+		if ( c == '\n' && ++lines == (rows + 1) )
+			next_page = 1;
+	}
+	if ( f != stdin )
+		fclose(f);
+#ifdef BB_MORE_TERM
+	gotsig(0);
+#endif	
+	return 0;
+}
diff --git a/util-linux/mount.c b/util-linux/mount.c
new file mode 100644
index 000000000..010757d1e
--- /dev/null
+++ b/util-linux/mount.c
@@ -0,0 +1,430 @@
+/*
+   3/21/1999	Charles P. Wright <cpwright@cpwright.com>
+		searches through fstab when -a is passed
+		will try mounting stuff with all fses when passed -t auto
+
+	1999-04-17	Dave Cinege...Rewrote -t auto. Fixed ro mtab.
+*/
+
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+#include <ctype.h>
+
+const char	mount_usage[] = "mount\n"
+"\t\tmount [flags] special-device directory\n"
+"\n"
+"Flags:\n"
+"\t-a:\tMount all file systems in fstab.\n"
+"\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n"
+"\t-n:\tDon't write a mount table entry.\n"
+"\t-o option:\tOne of many filesystem options, listed below.\n"
+"\t-r:\tMount the filesystem read-only.\n"
+"\t-t filesystem-type:\tSpecify the filesystem type.\n"
+"\t-w:\tMount for reading and writing (default).\n"
+"\n"
+"Options for use with the \"-o\" flag:\n"
+"\tasync / sync:\tWrites are asynchronous / synchronous.\n"
+"\tdev / nodev:\tAllow use of special device files / disallow them.\n"
+"\texec / noexec:\tAllow use of executable files / disallow them.\n"
+"\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n"
+"\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n"
+"\tro / rw: Mount for read-only / read-write.\n"
+"\t"
+"There are EVEN MORE flags that are specific to each filesystem.\n"
+"You'll have to see the written documentation for those.\n";
+
+struct mount_options {
+	const char *	name;
+	unsigned long	and;
+	unsigned long	or;
+};
+
+static const struct mount_options	mount_options[] = {
+	{	"async",	~MS_SYNCHRONOUS,0		},
+	{	"defaults",	~0,		0		},
+	{	"dev",		~MS_NODEV,	0		},
+	{	"exec",		~MS_NOEXEC,	0		},
+	{	"nodev",	~0,		MS_NODEV	},
+	{	"noexec",	~0,		MS_NOEXEC	},
+	{	"nosuid",	~0,		MS_NOSUID	},
+	{	"remount",	~0,		MS_REMOUNT	},
+	{	"ro",		~0,		MS_RDONLY	},
+	{	"rw",		~MS_RDONLY,	0		},
+	{	"suid",		~MS_NOSUID,	0		},
+	{	"sync",		~0,		MS_SYNCHRONOUS	},
+	{	0,		0,		0		}
+};
+
+static void
+show_flags(unsigned long flags, char * buffer)
+{
+	const struct mount_options *	f = mount_options;
+	while ( f->name ) {
+		if ( flags & f->and ) {
+			int	length = strlen(f->name);
+			memcpy(buffer, f->name, length);
+			buffer += length;
+			*buffer++ = ',';
+			*buffer = '\0';
+		}
+		f++;
+	}
+}
+
+static void
+one_option(
+ char *			option
+,unsigned long *	flags
+,char *			data)
+{
+	const struct mount_options *	f = mount_options;
+
+	while ( f->name != 0 ) {
+		if ( strcasecmp(f->name, option) == 0 ) {
+			*flags &= f->and;
+			*flags |= f->or;
+			return;
+		}
+		f++;
+	}
+	if ( *data ) {
+		data += strlen(data);
+		*data++ = ',';
+	}
+	strcpy(data, option);
+}
+
+static void
+parse_mount_options(
+ char *			options
+,unsigned long *	flags
+,char *			data)
+{
+	while ( *options ) {
+		char * comma = strchr(options, ',');
+		if ( comma )
+			*comma = '\0';
+		one_option(options, flags, data);
+		if ( comma ) {
+			*comma = ',';
+			options = ++comma;
+		}
+		else
+			break;
+	}
+}
+
+int
+mount_one(
+ char *		blockDevice
+,char *		directory
+,char *		filesystemType
+,unsigned long	flags
+,char *		string_flags
+,int		noMtab
+,int		fake)
+{
+	int	error = 0;
+	int 	status = 0;
+
+	char	buf[255];
+		
+	if (!fake) {
+		if (*filesystemType == 'a') { 			//Will fail on real FS starting with 'a'
+
+			FILE	*f = fopen("/proc/filesystems", "r");
+
+			if (f == NULL)	return 1;
+
+			while (fgets(buf, sizeof(buf), f) != NULL) {
+				filesystemType = buf;
+				if (*filesystemType == '\t') {  // Not a nodev filesystem
+					
+					while (*filesystemType && *filesystemType != '\n')	filesystemType++;
+					*filesystemType = '\0';
+						
+					filesystemType = buf;
+					filesystemType++;	//hop past tab
+					
+					status = mount(blockDevice, directory, filesystemType,
+							flags|MS_MGC_VAL ,string_flags);
+					error = errno;
+
+					if (status == 0) break;
+				}
+			}
+			fclose(f);
+		} else {	
+
+			status = mount( blockDevice, directory, filesystemType,
+					flags|MS_MGC_VAL ,string_flags);
+			error = errno;
+		}
+	}
+
+	if ( status == 0 ) {
+		char *	s = &string_flags[strlen(string_flags)];
+		FILE *	mountTable;
+		if ( s != string_flags ) {
+			*s++ = ',';
+			show_flags(flags, s);
+		}
+		if ( !noMtab && (mountTable = setmntent("/etc/mtab", "a+")) ) {
+			int	length = strlen(directory);
+			struct mntent	m;
+
+			if ( length > 1 && directory[length - 1] == '/' )
+				directory[length - 1] = '\0';
+
+			if ( filesystemType == 0 ) {
+				struct mntent *	p
+				 = findMountPoint(blockDevice, "/proc/mounts");
+
+				if ( p && p->mnt_type )
+					filesystemType = p->mnt_type;
+			}
+			m.mnt_fsname = blockDevice;
+			m.mnt_dir = directory;
+			m.mnt_type = filesystemType ? filesystemType : "default";
+			
+			if (*string_flags) {
+				m.mnt_opts = string_flags;
+			} else {
+				if ( (flags | MS_RDONLY) == flags )
+					m.mnt_opts = "ro";
+				else	
+					m.mnt_opts = "rw";
+			}
+			
+			m.mnt_freq = 0;
+			m.mnt_passno = 0;
+			addmntent(mountTable, &m);
+			endmntent(mountTable);
+		}
+		return 0;
+	} else {
+		fprintf(stderr, "Mount %s", blockDevice);
+		if ( filesystemType && *filesystemType )
+			fprintf(stderr, " (type %s)", filesystemType);
+
+		fprintf(
+		 stderr
+		," on %s: "
+		,directory);
+
+		switch ( error ) {
+		case EPERM:
+			if (geteuid() == 0)
+				fprintf(
+				 stderr
+				,"mount point %s is not a directory"
+				,blockDevice);
+			else
+				fprintf(
+				 stderr
+				,"must be superuser to use mount");
+			break;
+		case EBUSY:
+			fprintf(
+			 stderr
+			,"%s already mounted or %s busy"
+			,blockDevice
+			,directory);
+			break;
+		case ENOENT:
+		{
+			struct stat statbuf;
+			if ( stat(directory, &statbuf) != 0 )
+				fprintf(
+				 stderr
+				,"directory %s does not exist"
+				,directory);
+			else if ( stat(blockDevice, &statbuf) != 0 )
+				fprintf(
+				 stderr
+				,"block device %s does not exist"
+				,blockDevice);
+			else
+				fprintf(
+				 stderr
+				,"%s is not mounted on %s, but the mount table says it is."
+				,blockDevice
+				,directory);
+			break;
+		}
+		case ENOTDIR:
+			fprintf(
+			 stderr
+			,"%s is not a directory"
+			,directory);
+			break;
+		case EINVAL:
+			fprintf(
+			 stderr
+			,"wrong filesystem type, or bad superblock on %s"
+			,blockDevice);
+			break;
+		case EMFILE:
+			fprintf(stderr, "mount table full");
+			break;
+		case EIO:
+			fprintf(
+			 stderr
+			,"I/O error reading %s"
+			,blockDevice);
+			break;
+		case ENODEV:
+		{
+			FILE *	f = fopen("/proc/filesystems", "r");
+
+			fprintf(
+			 stderr
+			,"filesystem type %s not in kernel.\n"
+			,filesystemType);
+			fprintf(stderr, "Do you need to load a module?\n");
+			if ( f ) {
+				char	buf[100];
+
+				fprintf(
+				 stderr
+				,"Here are the filesystem types the kernel"
+				 " can mount:\n");
+				while ( fgets(buf, sizeof(buf), f) != 0 )
+					fprintf(stderr, "\t%s", buf);
+				fclose(f);
+			}
+			break;
+		}
+		case ENOTBLK:
+			fprintf(
+			 stderr
+			,"%s is not a block device"
+			,blockDevice);
+			break;
+		case ENXIO:
+			fprintf(
+			 stderr
+			,"%s is not a valid block device"
+			,blockDevice);
+			break;
+		default:
+			fputs(strerror(errno), stderr);
+		}
+		putc('\n', stderr);
+		return -1;
+	}
+}
+
+extern int
+mount_main(struct FileInfo * i, int argc, char * * argv)
+{
+	char	string_flags[1024];
+	unsigned long	flags = 0;
+	char *	filesystemType = "auto";
+	int		fake = 0;
+	int		noMtab = 0;
+	int 		all = 0;
+	
+	*string_flags = '\0';
+
+	if ( argc == 1 ) {
+		FILE *	mountTable;
+		if ( (mountTable = setmntent("/etc/mtab", "r")) ) {
+			struct mntent * m;
+			while ( (m = getmntent(mountTable)) != 0 ) {
+				printf(
+				 "%s on %s type %s (%s)\n"
+				,m->mnt_fsname
+				,m->mnt_dir
+				,m->mnt_type
+				,m->mnt_opts);
+			}
+			endmntent(mountTable);
+		}
+		return 0;
+	}
+
+	while ( argc >= 2 && argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'f':
+			fake = 1;
+			break;
+		case 'n':
+			noMtab = 1;
+			break;
+		case 'o':
+			if ( argc < 3 ) {
+				usage(mount_usage);
+				return 1;
+			}
+			parse_mount_options(argv[2], &flags, string_flags);
+			argc--;
+			argv++;
+			break;
+		case 'r':
+			flags |= MS_RDONLY;
+			break;
+		case 't':
+			if ( argc < 3 ) {
+				usage(mount_usage);
+				return 1;
+			}
+			filesystemType = argv[2];
+			argc--;
+			argv++;
+			break;
+		case 'v':
+			break;
+		case 'w':
+			flags &= ~MS_RDONLY;
+			break;
+		case 'a':
+			all = 1;
+			break;
+		default:
+			usage(mount_usage);
+			return 1;
+		}
+		argc--;
+		argv++;
+	}
+
+	if (all == 1) {
+		struct 	mntent *m;
+		FILE	*f = setmntent("/etc/fstab", "r");
+
+		if (f == NULL)	{
+			return 1;
+		}
+
+		// FIXME: Combine read routine (make new function) with unmount_all to save space.
+
+		while ((m = getmntent(f)) != NULL) {	
+			// If the file system isn't noauto, and isn't mounted on /, mount it
+			if ((!strstr(m->mnt_opts, "noauto")) && (m->mnt_dir[1] != '\0') 
+				&& !((m->mnt_type[0] == 's') && (m->mnt_type[1] == 'w')) 
+				&& !((m->mnt_type[0] == 'n') && (m->mnt_type[1] == 'f'))) {
+				mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type, flags, m->mnt_opts, noMtab, fake);	
+			}
+		}
+
+		endmntent(f);
+	} else {
+		if ( argc >= 3 ) {
+			if ( mount_one( argv[1], argv[2], filesystemType, flags, string_flags, noMtab, fake) == 0 )
+				return 0;
+			else
+				return 1;
+		} else {
+			usage(mount_usage);
+			return 1;
+		}
+	}
+	return 0;
+}
diff --git a/util-linux/umount.c b/util-linux/umount.c
new file mode 100644
index 000000000..4efc9f9d9
--- /dev/null
+++ b/util-linux/umount.c
@@ -0,0 +1,135 @@
+#include "internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <mntent.h>
+#include <sys/mount.h>
+
+const char	umount_usage[] = "umount {filesystem|directory}\n"
+"\tumount -a\n"
+"\n"
+"\tUnmount a filesystem.\n"
+"\t-a:\tUnmounts all mounted filesystems.\n";
+
+static char *
+stralloc(const char * string)
+{
+	int	length = strlen(string) + 1;
+	char *	n = malloc(length);
+	memcpy(n, string, length);
+	return n;
+}
+
+extern void
+erase_mtab(const char * name)
+{
+	struct mntent	entries[100];
+	int		count = 0;
+	FILE *		mountTable = setmntent("/etc/mtab", "r");
+	struct mntent *	m;
+
+	if ( mountTable == 0
+	 && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+		name_and_error("/etc/mtab");
+		return;
+	}
+
+	while ( (m = getmntent(mountTable)) != 0 ) {
+		entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+		entries[count].mnt_dir = stralloc(m->mnt_dir);
+		entries[count].mnt_type = stralloc(m->mnt_type);
+		entries[count].mnt_opts = stralloc(m->mnt_opts);
+		entries[count].mnt_freq = m->mnt_freq;
+		entries[count].mnt_passno = m->mnt_passno;
+		count++;
+	}
+	endmntent(mountTable);
+	if ( (mountTable = setmntent("/etc/mtab", "w")) ) {
+		int	i;
+		for ( i = 0; i < count; i++ ) {
+			int result = ( strcmp(entries[i].mnt_fsname, name) == 0
+			 || strcmp(entries[i].mnt_dir, name) == 0 );
+
+			if ( result )
+				continue;
+			else
+				addmntent(mountTable, &entries[i]);
+		}
+		endmntent(mountTable);
+	}
+	else if ( errno != EROFS )
+		name_and_error("/etc/mtab");
+}
+
+static int
+umount_all(int noMtab)
+{
+	struct mntent	entries[100];
+	int				count = 0;
+	FILE *			mountTable = setmntent("/etc/mtab", "r");
+	struct mntent *	m;
+	int				status = 0;
+
+	if ( mountTable == 0
+	 && (mountTable = setmntent("/proc/mounts", "r")) == 0 ) {
+		name_and_error("/etc/mtab");
+		return 1;
+	}
+
+	while ( (m = getmntent(mountTable)) != 0 ) {
+		entries[count].mnt_fsname = stralloc(m->mnt_fsname);
+		count++;
+	}
+	endmntent(mountTable);
+
+	while ( count > 0 ) {
+		int result = umount(entries[--count].mnt_fsname) == 0;
+		/* free(entries[count].mnt_fsname); */
+		if ( result ) {
+			if ( !noMtab )
+				erase_mtab(entries[count].mnt_fsname);
+		}
+		else {
+			status = 1;
+			name_and_error(entries[count].mnt_fsname);
+		}
+	}
+	return status;
+}
+
+extern int
+do_umount(const char * name, int noMtab)
+{
+	if ( umount(name) == 0 ) {
+		if ( !noMtab )
+			erase_mtab(name);
+		return 0;
+	}
+	return 1;
+}
+
+extern int
+umount_main(struct FileInfo * i, int argc, char * * argv)
+{
+	int	noMtab = 0;
+
+	if ( argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'a':
+			return umount_all(noMtab);
+		case 'n':
+			noMtab = 1;
+			break;
+		default:
+			usage(umount_usage);
+			return 1;
+		}
+	}
+	if ( do_umount(argv[1],noMtab) != 0 ) {
+		fprintf(stderr, "%s: %s.\n", argv[1], strerror(errno));
+		return 1;
+	}
+	return 0;
+}
diff --git a/utility.c b/utility.c
new file mode 100644
index 000000000..68259710b
--- /dev/null
+++ b/utility.c
@@ -0,0 +1,1181 @@
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include "utility.h"
+
+#if 0
+
+extern char *
+join_paths(char * buffer, const char * a, const char * b)
+{
+	int	length = 0;
+
+	if ( a && *a ) {
+		length = strlen(a);
+		memcpy(buffer, a, length);
+	}
+	if ( b && *b ) {
+		if ( length > 0 && buffer[length - 1] != '/' )
+			buffer[length++] = '/';
+		if ( *b == '/' )
+			b++;
+		strcpy(&buffer[length], b);
+	}
+	return buffer;
+}
+
+#endif
+
+
+
+
+
+
+static	CHUNK *	chunkList;
+
+extern void
+name_and_error(const char * name)
+{
+	fprintf(stderr, "%s: %s\n", name, strerror(errno));
+}
+
+
+
+/*
+ * Return the standard ls-like mode string from a file mode.
+ * This is static and so is overwritten on each call.
+ */
+const char *
+modeString(int mode)
+{
+	static	char	buf[12];
+
+	strcpy(buf, "----------");
+
+	/*
+	 * Fill in the file type.
+	 */
+	if (S_ISDIR(mode))
+		buf[0] = 'd';
+	if (S_ISCHR(mode))
+		buf[0] = 'c';
+	if (S_ISBLK(mode))
+		buf[0] = 'b';
+	if (S_ISFIFO(mode))
+		buf[0] = 'p';
+#ifdef	S_ISLNK
+	if (S_ISLNK(mode))
+		buf[0] = 'l';
+#endif
+#ifdef	S_ISSOCK
+	if (S_ISSOCK(mode))
+		buf[0] = 's';
+#endif
+
+	/*
+	 * Now fill in the normal file permissions.
+	 */
+	if (mode & S_IRUSR)
+		buf[1] = 'r';
+	if (mode & S_IWUSR)
+		buf[2] = 'w';
+	if (mode & S_IXUSR)
+		buf[3] = 'x';
+	if (mode & S_IRGRP)
+		buf[4] = 'r';
+	if (mode & S_IWGRP)
+		buf[5] = 'w';
+	if (mode & S_IXGRP)
+		buf[6] = 'x';
+	if (mode & S_IROTH)
+		buf[7] = 'r';
+	if (mode & S_IWOTH)
+		buf[8] = 'w';
+	if (mode & S_IXOTH)
+		buf[9] = 'x';
+
+	/*
+	 * Finally fill in magic stuff like suid and sticky text.
+	 */
+	if (mode & S_ISUID)
+		buf[3] = ((mode & S_IXUSR) ? 's' : 'S');
+	if (mode & S_ISGID)
+		buf[6] = ((mode & S_IXGRP) ? 's' : 'S');
+	if (mode & S_ISVTX)
+		buf[9] = ((mode & S_IXOTH) ? 't' : 'T');
+
+	return buf;
+}
+
+
+/*
+ * Get the time string to be used for a file.
+ * This is down to the minute for new files, but only the date for old files.
+ * The string is returned from a static buffer, and so is overwritten for
+ * each call.
+ */
+const char *
+timeString(time_t timeVal)
+{
+	time_t		now;
+	char *		str;
+	static	char	buf[26];
+
+	time(&now);
+
+	str = ctime(&timeVal);
+
+	strcpy(buf, &str[4]);
+	buf[12] = '\0';
+
+	if ((timeVal > now) || (timeVal < now - 365*24*60*60L))
+	{
+		strcpy(&buf[7], &str[20]);
+		buf[11] = '\0';
+	}
+
+	return buf;
+}
+
+
+/*
+ * Return TRUE if a fileName is a directory.
+ * Nonexistant files return FALSE.
+ */
+BOOL
+isDirectory(const char * name)
+{
+	struct	stat	statBuf;
+
+	if (stat(name, &statBuf) < 0)
+		return FALSE;
+
+	return S_ISDIR(statBuf.st_mode);
+}
+
+
+/*
+ * Return TRUE if a filename is a block or character device.
+ * Nonexistant files return FALSE.
+ */
+BOOL
+isDevice(const char * name)
+{
+	struct	stat	statBuf;
+
+	if (stat(name, &statBuf) < 0)
+		return FALSE;
+
+	return S_ISBLK(statBuf.st_mode) || S_ISCHR(statBuf.st_mode);
+}
+
+
+/*
+ * Copy one file to another, while possibly preserving its modes, times,
+ * and modes.  Returns TRUE if successful, or FALSE on a failure with an
+ * error message output.  (Failure is not indicted if the attributes cannot
+ * be set.)
+ */
+BOOL
+copyFile(
+	const char *	srcName,
+	const char *	destName,
+	BOOL		setModes
+)
+{
+	int		rfd;
+	int		wfd;
+	int		rcc;
+	char		buf[BUF_SIZE];
+	struct	stat	statBuf1;
+	struct	stat	statBuf2;
+	struct	utimbuf	times;
+	
+	if (stat(srcName, &statBuf1) < 0)
+	{
+		perror(srcName);
+
+		return FALSE;
+	}
+
+	if (stat(destName, &statBuf2) < 0)
+	{
+		statBuf2.st_ino = -1;
+		statBuf2.st_dev = -1;
+	}
+
+	if ((statBuf1.st_dev == statBuf2.st_dev) &&
+		(statBuf1.st_ino == statBuf2.st_ino))
+	{
+		fprintf(stderr, "Copying file \"%s\" to itself\n", srcName);
+
+		return FALSE;
+	}
+
+	rfd = open(srcName, O_RDONLY);
+
+	if (rfd < 0)
+	{
+		perror(srcName);
+
+		return FALSE;
+	}
+
+	wfd = creat(destName, statBuf1.st_mode);
+
+	if (wfd < 0)
+	{
+		perror(destName);
+		close(rfd);
+
+		return FALSE;
+	}
+
+	while ((rcc = read(rfd, buf, sizeof(buf))) > 0)
+	{
+		if (fullWrite(wfd, buf, rcc) < 0)
+			goto error_exit;
+	}
+
+	if (rcc < 0)
+	{
+		perror(srcName);
+		goto error_exit;
+	}
+
+	(void) close(rfd);
+
+	if (close(wfd) < 0)
+	{
+		perror(destName);
+
+		return FALSE;
+	}
+
+	if (setModes)
+	{
+		(void) chmod(destName, statBuf1.st_mode);
+
+		(void) chown(destName, statBuf1.st_uid, statBuf1.st_gid);
+
+		times.actime = statBuf1.st_atime;
+		times.modtime = statBuf1.st_mtime;
+
+		(void) utime(destName, &times);
+	}
+
+	return TRUE;
+
+
+error_exit:
+	close(rfd);
+	close(wfd);
+
+	return FALSE;
+}
+
+
+/*
+ * Build a path name from the specified directory name and file name.
+ * If the directory name is NULL, then the original fileName is returned.
+ * The built path is in a static area, and is overwritten for each call.
+ */
+const char *
+buildName(const char * dirName, const char * fileName)
+{
+	const char *	cp;
+	static	char	buf[PATH_LEN];
+
+	if ((dirName == NULL) || (*dirName == '\0'))
+		return fileName;
+
+	cp = strrchr(fileName, '/');
+
+	if (cp)
+		fileName = cp + 1;
+
+	strcpy(buf, dirName);
+	strcat(buf, "/");
+	strcat(buf, fileName);
+
+	return buf;
+}
+
+
+
+/*
+ * Expand the wildcards in a fileName wildcard pattern, if any.
+ * Returns an argument list with matching fileNames in sorted order.
+ * The expanded names are stored in memory chunks which can later all
+ * be freed at once.  The returned list is only valid until the next
+ * call or until the next command.  Returns zero if the name is not a
+ * wildcard, or returns the count of matched files if the name is a
+ * wildcard and there was at least one match, or returns -1 if either
+ * no fileNames matched or there was an allocation error.
+ */
+int
+expandWildCards(const char * fileNamePattern, const char *** retFileTable)
+{
+	const char *	last;
+	const char *	cp1;
+	const char *	cp2;
+	const char *	cp3;
+	char *		str;
+	DIR *		dirp;
+	struct dirent *	dp;
+	int		dirLen;
+	int		newFileTableSize;
+	char **		newFileTable;
+	char		dirName[PATH_LEN];
+
+	static int	fileCount;
+	static int	fileTableSize;
+	static char **	fileTable;
+
+	/*
+	 * Clear the return values until we know their final values.
+	 */
+	fileCount = 0;
+	*retFileTable = NULL;
+
+	/*
+	 * Scan the file name pattern for any wildcard characters.
+	 */
+	cp1 = strchr(fileNamePattern, '*');
+	cp2 = strchr(fileNamePattern, '?');
+	cp3 = strchr(fileNamePattern, '[');
+
+	/*
+	 * If there are no wildcard characters then return zero to
+	 * indicate that there was actually no wildcard pattern.
+	 */
+	if ((cp1 == NULL) && (cp2 == NULL) && (cp3 == NULL))
+		return 0;
+
+	/*
+	 * There are wildcards in the specified filename.
+	 * Get the last component of the file name.
+	 */
+	last = strrchr(fileNamePattern, '/');
+
+	if (last)
+		last++;
+	else
+		last = fileNamePattern;
+
+	/*
+	 * If any wildcards were found before the last filename component
+	 * then return an error.
+	 */
+	if ((cp1 && (cp1 < last)) || (cp2 && (cp2 < last)) ||
+		(cp3 && (cp3 < last)))
+	{
+		fprintf(stderr,
+		"Wildcards only implemented for last file name component\n");
+
+		return -1;
+	}
+
+	/*
+	 * Assume at first that we are scanning the current directory.
+	 */
+	dirName[0] = '.';
+	dirName[1] = '\0';
+
+	/*
+	 * If there was a directory given as part of the file name then
+	 * copy it and null terminate it.
+	 */
+	if (last != fileNamePattern)
+	{
+		memcpy(dirName, fileNamePattern, last - fileNamePattern);
+		dirName[last - fileNamePattern - 1] = '\0';
+
+		if (dirName[0] == '\0')
+		{
+			dirName[0] = '/';
+			dirName[1] = '\0';
+		}
+	}
+
+	/*
+	 * Open the directory containing the files to be checked.
+	 */
+	dirp = opendir(dirName);
+
+	if (dirp == NULL)
+	{
+		perror(dirName);
+
+		return -1;
+	}
+
+	/*
+	 * Prepare the directory name for use in making full path names.
+	 */
+	dirLen = strlen(dirName);
+
+	if (last == fileNamePattern)
+	{
+		dirLen = 0;
+		dirName[0] = '\0';
+	}
+	else if (dirName[dirLen - 1] != '/')
+	{
+		dirName[dirLen++] = '/';
+		dirName[dirLen] = '\0';
+	}
+
+	/*
+	 * Find all of the files in the directory and check them against
+	 * the wildcard pattern.
+	 */
+	while ((dp = readdir(dirp)) != NULL)
+	{
+		/*
+		 * Skip the current and parent directories.
+		 */
+		if ((strcmp(dp->d_name, ".") == 0) ||
+			(strcmp(dp->d_name, "..") == 0))
+		{
+			continue;
+		}
+
+		/*
+		 * If the file name doesn't match the pattern then skip it.
+		 */
+		if (!match(dp->d_name, last))
+			continue;
+
+		/*
+		 * This file name is selected.
+		 * See if we need to reallocate the file name table.
+		 */
+		if (fileCount >= fileTableSize)
+		{
+			/*
+			 * Increment the file table size and reallocate it.
+			 */
+			newFileTableSize = fileTableSize + EXPAND_ALLOC;
+
+			newFileTable = (char **) realloc((char *) fileTable,
+				(newFileTableSize * sizeof(char *)));
+
+			if (newFileTable == NULL)
+			{
+				fprintf(stderr, "Cannot allocate file list\n");
+				closedir(dirp);
+
+				return -1;
+			}
+
+			fileTable = newFileTable;
+			fileTableSize = newFileTableSize;
+		}
+
+		/*
+		 * Allocate space for storing the file name in a chunk.
+		 */
+		str = getChunk(dirLen + strlen(dp->d_name) + 1);
+
+		if (str == NULL)
+		{
+			fprintf(stderr, "No memory for file name\n");
+			closedir(dirp);
+
+			return -1;
+		}
+
+		/*
+		 * Save the file name in the chunk.
+		 */
+		if (dirLen)
+			memcpy(str, dirName, dirLen);
+
+		strcpy(str + dirLen, dp->d_name);
+
+		/*
+		 * Save the allocated file name into the file table.
+		 */
+		fileTable[fileCount++] = str;
+	}
+
+	/*
+	 * Close the directory and check for any matches.
+	 */
+	closedir(dirp);
+
+	if (fileCount == 0)
+	{
+		fprintf(stderr, "No matches\n");
+
+		return -1;
+	}
+
+	/*
+	 * Sort the list of file names.
+	 */
+	qsort((void *) fileTable, fileCount, sizeof(char *), nameSort);
+
+	/*
+	 * Return the file list and count.
+	 */
+	*retFileTable = (const char **) fileTable;
+
+	return fileCount;
+}
+
+
+/*
+ * Sort routine for list of fileNames.
+ */
+int
+nameSort(const void * p1, const void * p2)
+{
+	const char **	s1;
+	const char **	s2;
+
+	s1 = (const char **) p1;
+	s2 = (const char **) p2;
+
+	return strcmp(*s1, *s2);
+}
+
+
+
+/*
+ * Routine to see if a text string is matched by a wildcard pattern.
+ * Returns TRUE if the text is matched, or FALSE if it is not matched
+ * or if the pattern is invalid.
+ *  *		matches zero or more characters
+ *  ?		matches a single character
+ *  [abc]	matches 'a', 'b' or 'c'
+ *  \c		quotes character c
+ *  Adapted from code written by Ingo Wilken.
+ */
+BOOL
+match(const char * text, const char * pattern)
+{
+	const char *	retryPat;
+	const char *	retryText;
+	int		ch;
+	BOOL		found;
+
+	retryPat = NULL;
+	retryText = NULL;
+
+	while (*text || *pattern)
+	{
+		ch = *pattern++;
+
+		switch (ch)
+		{
+			case '*':  
+				retryPat = pattern;
+				retryText = text;
+				break;
+
+			case '[':  
+				found = FALSE;
+
+				while ((ch = *pattern++) != ']')
+				{
+					if (ch == '\\')
+						ch = *pattern++;
+
+					if (ch == '\0')
+						return FALSE;
+
+					if (*text == ch)
+						found = TRUE;
+				}
+
+				if (!found)
+				{
+					pattern = retryPat;
+					text = ++retryText;
+				}
+
+				/* fall into next case */
+
+			case '?':  
+				if (*text++ == '\0')
+					return FALSE;
+
+				break;
+
+			case '\\':  
+				ch = *pattern++;
+
+				if (ch == '\0')
+					return FALSE;
+
+				/* fall into next case */
+
+			default:        
+				if (*text == ch)
+				{
+					if (*text)
+						text++;
+					break;
+				}
+
+				if (*text)
+				{
+					pattern = retryPat;
+					text = ++retryText;
+					break;
+				}
+
+				return FALSE;
+		}
+
+		if (pattern == NULL)
+			return FALSE;
+	}
+
+	return TRUE;
+}
+
+
+/*
+ * Take a command string and break it up into an argc, argv list while
+ * handling quoting and wildcards.  The returned argument list and
+ * strings are in static memory, and so are overwritten on each call.
+ * The argument list is ended with a NULL pointer for convenience.
+ * Returns TRUE if successful, or FALSE on an error with a message
+ * already output.
+ */
+BOOL
+makeArgs(const char * cmd, int * retArgc, const char *** retArgv)
+{
+	const char *		argument;
+	char *			cp;
+	char *			cpOut;
+	char *			newStrings;
+	const char **		fileTable;
+	const char **		newArgTable;
+	int			newArgTableSize;
+	int			fileCount;
+	int			len;
+	int			ch;
+	int			quote;
+	BOOL			quotedWildCards;
+	BOOL			unquotedWildCards;
+
+	static int		stringsLength;
+	static char *		strings;
+	static int		argCount;
+	static int		argTableSize;
+	static const char **	argTable;
+
+	/*
+	 * Clear the returned values until we know them.
+	 */
+	argCount = 0;
+	*retArgc = 0;
+	*retArgv = NULL;
+
+	/*
+	 * Copy the command string into a buffer that we can modify,
+	 * reallocating it if necessary.
+	 */
+	len = strlen(cmd) + 1;
+
+	if (len > stringsLength)
+	{
+		newStrings = realloc(strings, len);
+
+		if (newStrings == NULL)
+		{
+			fprintf(stderr, "Cannot allocate string\n");
+
+			return FALSE;
+		}
+
+		strings = newStrings;
+		stringsLength = len;
+	}
+
+	memcpy(strings, cmd, len);
+	cp = strings;
+
+	/*
+	 * Keep parsing the command string as long as there are any
+	 * arguments left.
+	 */
+	while (*cp)
+	{
+		/*
+		 * Save the beginning of this argument.
+		 */
+		argument = cp;
+		cpOut = cp;
+
+		/*
+		 * Reset quoting and wildcarding for this argument.
+		 */
+		quote = '\0';
+		quotedWildCards = FALSE;
+		unquotedWildCards = FALSE;
+
+		/*
+		 * Loop over the string collecting the next argument while
+		 * looking for quoted strings or quoted characters, and
+		 * remembering whether there are any wildcard characters
+		 * in the argument.
+		 */
+		while (*cp)
+		{
+			ch = *cp++;
+
+			/*
+			 * If we are not in a quote and we see a blank then
+			 * this argument is done.
+			 */
+			if (isBlank(ch) && (quote == '\0'))
+				break;
+
+			/*
+			 * If we see a backslash then accept the next
+			 * character no matter what it is.
+			 */
+			if (ch == '\\')
+			{
+				ch = *cp++;
+
+				/*
+				 * Make sure there is a next character.
+				 */
+				if (ch == '\0')
+				{
+					fprintf(stderr,
+						"Bad quoted character\n");
+
+					return FALSE;
+				}
+
+				/*
+				 * Remember whether the quoted character
+				 * is a wildcard.
+				 */
+				if (isWildCard(ch))
+					quotedWildCards = TRUE;
+
+				*cpOut++ = ch;
+
+				continue;
+			}
+
+			/*
+			 * If we see one of the wildcard characters then
+			 * remember whether it was seen inside or outside
+			 * of quotes.
+			 */
+			if (isWildCard(ch))
+			{
+				if (quote)
+					quotedWildCards = TRUE;
+				else
+					unquotedWildCards = TRUE;
+			}
+
+			/*
+			 * If we were in a quote and we saw the same quote
+			 * character again then the quote is done.
+			 */
+			if (ch == quote)
+			{
+				quote = '\0';
+
+				continue;
+			}
+
+			/*
+			 * If we weren't in a quote and we see either type
+			 * of quote character, then remember that we are
+			 * now inside of a quote.
+			 */
+			if ((quote == '\0') && ((ch == '\'') || (ch == '"')))
+			{
+				quote = ch;
+
+				continue;
+			}
+
+			/*
+			 * Store the character.
+			 */
+			*cpOut++ = ch;
+		}
+
+		/*
+		 * Make sure that quoting is terminated properly.
+		 */
+		if (quote)
+		{
+			fprintf(stderr, "Unmatched quote character\n");
+
+			return FALSE;
+		}
+
+		/*
+		 * Null terminate the argument if it had shrunk, and then
+		 * skip over all blanks to the next argument, nulling them
+		 * out too.
+		 */
+		if (cp != cpOut)
+			*cpOut = '\0';
+
+		while (isBlank(*cp))
+ 			*cp++ = '\0';
+
+		/*
+		 * If both quoted and unquoted wildcards were used then
+		 * complain since we don't handle them properly.
+		 */
+		if (quotedWildCards && unquotedWildCards)
+		{
+			fprintf(stderr,
+				"Cannot use quoted and unquoted wildcards\n");
+
+			return FALSE;
+		}
+
+		/*
+		 * Expand the argument into the matching filenames or accept
+		 * it as is depending on whether there were any unquoted
+		 * wildcard characters in it.
+		 */
+		if (unquotedWildCards)
+		{
+			/*
+			 * Expand the argument into the matching filenames.
+			 */
+			fileCount = expandWildCards(argument, &fileTable);
+
+			/*
+			 * Return an error if the wildcards failed to match.
+			 */
+			if (fileCount < 0)
+				return FALSE;
+
+			if (fileCount == 0)
+			{
+				fprintf(stderr, "Wildcard expansion error\n");
+
+				return FALSE;
+			}
+		}
+		else
+		{
+			/*
+			 * Set up to only store the argument itself.
+			 */
+			fileTable = &argument;
+			fileCount = 1;
+		}
+
+		/*
+		 * Now reallocate the argument table to hold the file name.
+		 */
+		if (argCount + fileCount >= argTableSize)
+		{
+			newArgTableSize = argCount + fileCount + 1;
+
+			newArgTable = (const char **) realloc(argTable,
+				(sizeof(const char *) * newArgTableSize));
+
+			if (newArgTable == NULL)
+			{
+				fprintf(stderr, "No memory for arg list\n");
+
+				return FALSE;
+			}
+
+			argTable = newArgTable;
+			argTableSize = newArgTableSize;
+		}
+
+		/*
+		 * Copy the new arguments to the end of the old ones.
+		 */
+		memcpy((void *) &argTable[argCount], (const void *) fileTable,
+			(sizeof(const char **) * fileCount));
+
+		/*
+		 * Add to the argument count.
+		 */
+		argCount += fileCount;
+	}
+
+	/*
+	 * Null terminate the argument list and return it.
+	 */
+	argTable[argCount] = NULL;
+
+	*retArgc = argCount;
+	*retArgv = argTable;
+
+ 	return TRUE;
+}
+
+
+/*
+ * Make a NULL-terminated string out of an argc, argv pair.
+ * Returns TRUE if successful, or FALSE if the string is too long,
+ * with an error message given.  This does not handle spaces within
+ * arguments correctly.
+ */
+BOOL
+makeString(
+	int		argc,
+	const char **	argv,
+	char *		buf,
+	int		bufLen
+)
+{
+	int	len;
+
+	while (argc-- > 0)
+	{
+		len = strlen(*argv);
+
+		if (len >= bufLen)
+		{
+			fprintf(stderr, "Argument string too long\n");
+
+			return FALSE;
+		}
+
+		strcpy(buf, *argv++);
+
+		buf += len;
+		bufLen -= len;
+
+		if (argc)
+			*buf++ = ' ';
+
+		bufLen--; 
+	}
+
+	*buf = '\0';
+
+	return TRUE;
+}
+
+
+/*
+ * Allocate a chunk of memory (like malloc).
+ * The difference, though, is that the memory allocated is put on a
+ * list of chunks which can be freed all at one time.  You CAN NOT free
+ * an individual chunk.
+ */
+char *
+getChunk(int size)
+{
+	CHUNK *	chunk;
+
+	if (size < CHUNK_INIT_SIZE)
+		size = CHUNK_INIT_SIZE;
+
+	chunk = (CHUNK *) malloc(size + sizeof(CHUNK) - CHUNK_INIT_SIZE);
+
+	if (chunk == NULL)
+		return NULL;
+
+	chunk->next = chunkList;
+	chunkList = chunk;
+
+	return chunk->data;
+}
+
+
+/*
+ * Duplicate a string value using the chunk allocator.
+ * The returned string cannot be individually freed, but can only be freed
+ * with other strings when freeChunks is called.  Returns NULL on failure.
+ */
+char *
+chunkstrdup(const char * str)
+{
+	int	len;
+	char *	newStr;
+
+	len = strlen(str) + 1;
+	newStr = getChunk(len);
+
+	if (newStr)
+		memcpy(newStr, str, len);
+
+	return newStr;
+}
+
+
+/*
+ * Free all chunks of memory that had been allocated since the last
+ * call to this routine.
+ */
+void
+freeChunks(void)
+{
+	CHUNK *	chunk;
+
+	while (chunkList)
+	{
+		chunk = chunkList;
+		chunkList = chunk->next;
+		free((char *) chunk);
+	}
+}
+
+
+/*
+ * Write all of the supplied buffer out to a file.
+ * This does multiple writes as necessary.
+ * Returns the amount written, or -1 on an error.
+ */
+int
+fullWrite(int fd, const char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = write(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+/*
+ * Read all of the supplied buffer from a file.
+ * This does multiple reads as necessary.
+ * Returns the amount read, or -1 on an error.
+ * A short read is returned on an end of file.
+ */
+int
+fullRead(int fd, char * buf, int len)
+{
+	int	cc;
+	int	total;
+
+	total = 0;
+
+	while (len > 0)
+	{
+		cc = read(fd, buf, len);
+
+		if (cc < 0)
+			return -1;
+
+		if (cc == 0)
+			break;
+
+		buf += cc;
+		total+= cc;
+		len -= cc;
+	}
+
+	return total;
+}
+
+
+/*
+ * Read all of the supplied buffer from a file.
+ * This does multiple reads as necessary.
+ * Returns the amount read, or -1 on an error.
+ * A short read is returned on an end of file.
+ */
+int
+recursive( const char *fileName, BOOL followLinks, const char* pattern, 
+	int (*fileAction)(const char* fileName, const struct stat* statbuf), 
+	int (*dirAction)(const char* fileName, const struct stat* statbuf))
+{
+    int             status;
+    struct stat     statbuf;
+    struct dirent*  next;
+
+    if (followLinks)
+	status = stat(fileName, &statbuf);
+    else
+	status = lstat(fileName, &statbuf);
+
+    if (status < 0) {
+	perror(fileName);
+	return( -1);
+    }
+
+    if (S_ISREG(statbuf.st_mode)) {
+	if (match(fileName, pattern)) {
+	    if (fileAction==NULL)
+		fprintf( stdout, "%s\n", fileName);
+	    else
+		return(fileAction(fileName, &statbuf));
+	}
+    }
+    else if (S_ISDIR(statbuf.st_mode)) {
+	if (dirAction==NULL) {
+	    DIR *dir;
+	    if (! match(fileName, pattern))
+		return 1;
+	    dir = opendir(fileName);
+	    if (!dir) {
+		perror(fileName);
+		return( -1);
+	    }
+	    while ((next = readdir (dir)) != NULL) {
+		    status = recursive(fileName, followLinks, pattern, fileAction, dirAction);
+		    if (status < 0) {
+			closedir(dir);
+			return(status);
+		    }
+	    }
+	    status = closedir (dir);
+	    if (status < 0) {
+		perror(fileName);
+		return( -1);
+	    }
+	}
+	else
+	    return(dirAction(fileName, &statbuf));
+    }
+    return( 1);
+
+}
+
+
+
+/* END CODE */
diff --git a/utility.h b/utility.h
new file mode 100644
index 000000000..7b275baa4
--- /dev/null
+++ b/utility.h
@@ -0,0 +1,73 @@
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+//#include <sys/types.h>
+//#include <sys/stat.h>
+#include <dirent.h>
+#include <time.h>
+#include <utime.h>
+
+/*
+ * A chunk of data.
+ * Chunks contain data which is allocated as needed, but which is
+ * not freed until all of the data needs freeing, such as at
+ * the beginning of the next command.
+ */
+typedef struct chunk CHUNK;
+#define CHUNK_INIT_SIZE 4
+
+struct chunk {
+    CHUNK *next;
+    char data[CHUNK_INIT_SIZE];	/* actually of varying length */
+};
+
+const char *modeString(int mode);
+const char *timeString(time_t timeVal);
+BOOL isDirectory(const char *name);
+BOOL isDevice(const char *name);
+BOOL copyFile(const char *srcName, const char *destName, BOOL setModes);
+const char *buildName(const char *dirName, const char *fileName);
+BOOL match(const char *text, const char *pattern);
+BOOL makeArgs(const char *cmd, int *retArgc, const char ***retArgv);
+BOOL makeString(int argc, const char **argv, char *buf, int bufLen);
+char *getChunk(int size);
+char *chunkstrdup(const char *str);
+void freeChunks(void);
+int fullWrite(int fd, const char *buf, int len);
+int fullRead(int fd, char *buf, int len);
+int
+recursive(const char *fileName, BOOL followLinks, const char *pattern,
+	  int (*fileAction) (const char *fileName,
+			     const struct stat * statbuf),
+	  int (*dirAction) (const char *fileName,
+			    const struct stat * statbuf));
+
+int nameSort(const void *p1, const void *p2);
+int expandWildCards(const char *fileNamePattern,
+		    const char ***retFileTable);
diff --git a/zcat.c b/zcat.c
new file mode 100644
index 000000000..50fcdfc47
--- /dev/null
+++ b/zcat.c
@@ -0,0 +1,2262 @@
+/* zcat : stripped version based on gzip sources
+   Sven Rudolph <sr1@inf.tu-dresden.de>
+   */
+
+#include "internal.h"
+
+const char	zcat_usage[] = "zcat\n"
+"\n"
+"\tuncompress gzipped data from stdin to stdout\n";
+
+
+
+/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * The unzip code was written and put in the public domain by Mark Adler.
+ * Portions of the lzw code are derived from the public domain 'compress'
+ * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
+ * Ken Turkowski, Dave Mack and Peter Jannesen.
+ *
+ * See the license_msg below and the file COPYING for the software license.
+ * See the file algorithm.doc for the compression algorithms and file formats.
+ */
+
+#if 0
+static char  *license_msg[] = {
+"   Copyright (C) 1992-1993 Jean-loup Gailly",
+"   This program is free software; you can redistribute it and/or modify",
+"   it under the terms of the GNU General Public License as published by",
+"   the Free Software Foundation; either version 2, or (at your option)",
+"   any later version.",
+"",
+"   This program is distributed in the hope that it will be useful,",
+"   but WITHOUT ANY WARRANTY; without even the implied warranty of",
+"   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the",
+"   GNU General Public License for more details.",
+"",
+"   You should have received a copy of the GNU General Public License",
+"   along with this program; if not, write to the Free Software",
+"   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.",
+0};
+#endif
+
+/* Compress files with zip algorithm and 'compress' interface.
+ * See usage() and help() functions below for all options.
+ * Outputs:
+ *        file.gz:   compressed file with same mode, owner, and utimes
+ *     or stdout with -c option or if stdin used as input.
+ * If the output file name had to be truncated, the original name is kept
+ * in the compressed file.
+ * On MSDOS, file.tmp -> file.tmz. On VMS, file.tmp -> file.tmp-gz.
+ *
+ * Using gz on MSDOS would create too many file name conflicts. For
+ * example, foo.txt -> foo.tgz (.tgz must be reserved as shorthand for
+ * tar.gz). Similarly, foo.dir and foo.doc would both be mapped to foo.dgz.
+ * I also considered 12345678.txt -> 12345txt.gz but this truncates the name
+ * too heavily. There is no ideal solution given the MSDOS 8+3 limitation. 
+ *
+ * For the meaning of all compilation flags, see comments in Makefile.in.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+/* #include "tailor.h" */
+
+/* tailor.h -- target dependent definitions
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/* The target dependent definitions should be defined here only.
+ * The target dependent functions should be defined in tailor.c.
+ */
+
+/* $Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+
+#define RECORD_IO 0
+
+#define get_char() get_byte()
+#define put_char(c) put_byte(c)
+
+/* #include "gzip.h" */
+
+/* gzip.h -- common declarations for all gzip modules
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if defined(__STDC__) || defined(PROTO)
+#  define OF(args)  args
+#else
+#  define OF(args)  ()
+#endif
+
+#ifdef __STDC__
+   typedef void *voidp;
+#else
+   typedef char *voidp;
+#endif
+
+/* I don't like nested includes, but the string and io functions are used
+ * too often
+ */
+#include <stdio.h>
+#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
+#  include <string.h>
+#  if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
+#    include <memory.h>
+#  endif
+#  define memzero(s, n)     memset ((voidp)(s), 0, (n))
+#else
+#  include <strings.h>
+#  define strchr            index 
+#  define strrchr           rindex
+#  define memcpy(d, s, n)   bcopy((s), (d), (n)) 
+#  define memcmp(s1, s2, n) bcmp((s1), (s2), (n)) 
+#  define memzero(s, n)     bzero((s), (n))
+#endif
+
+#ifndef RETSIGTYPE
+#  define RETSIGTYPE void
+#endif
+
+#define local static
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+/* Return codes from gzip */
+#define OK      0
+#define ERROR   1
+#define WARNING 2
+
+/* Compression methods (see algorithm.doc) */
+#define DEFLATED    8
+
+extern int method;         /* compression method */
+
+/* To save memory for 16 bit systems, some arrays are overlaid between
+ * the various modules:
+ * deflate:  prev+head   window      d_buf  l_buf  outbuf
+ * unlzw:    tab_prefix  tab_suffix  stack  inbuf  outbuf
+ * inflate:              window             inbuf
+ * unpack:               window             inbuf  prefix_len
+ * unlzh:    left+right  window      c_table inbuf c_len
+ * For compression, input is done in window[]. For decompression, output
+ * is done in window except for unlzw.
+ */
+
+#ifndef	INBUFSIZ
+#  ifdef SMALL_MEM
+#    define INBUFSIZ  0x2000  /* input buffer size */
+#  else
+#    define INBUFSIZ  0x8000  /* input buffer size */
+#  endif
+#endif
+#define INBUF_EXTRA  64     /* required by unlzw() */
+
+#ifndef	OUTBUFSIZ
+#  ifdef SMALL_MEM
+#    define OUTBUFSIZ   8192  /* output buffer size */
+#  else
+#    define OUTBUFSIZ  16384  /* output buffer size */
+#  endif
+#endif
+#define OUTBUF_EXTRA 2048   /* required by unlzw() */
+
+#define SMALL_MEM
+
+#ifndef DIST_BUFSIZE
+#  ifdef SMALL_MEM
+#    define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
+#  else
+#    define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
+#  endif
+#endif
+
+/*#define DYN_ALLOC*/
+
+#ifdef DYN_ALLOC
+#  define EXTERN(type, array)  extern type * array
+#  define DECLARE(type, array, size)  type * array
+#  define ALLOC(type, array, size) { \
+      array = (type*)calloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
+      if (array == NULL) error("insufficient memory"); \
+   }
+#  define FREE(array) {if (array != NULL) free(array), array=NULL;}
+#else
+#  define EXTERN(type, array)  extern type array[]
+#  define DECLARE(type, array, size)  type array[size]
+#  define ALLOC(type, array, size)
+#  define FREE(array)
+#endif
+
+EXTERN(uch, inbuf);          /* input buffer */
+EXTERN(uch, outbuf);         /* output buffer */
+EXTERN(ush, d_buf);          /* buffer for distances, see trees.c */
+EXTERN(uch, window);         /* Sliding window and suffix table (unlzw) */
+#define tab_suffix window
+#ifndef MAXSEG_64K
+#  define tab_prefix prev    /* hash link (see deflate.c) */
+#  define head (prev+WSIZE)  /* hash head (see deflate.c) */
+   EXTERN(ush, tab_prefix);  /* prefix code (see unlzw.c) */
+#else
+#  define tab_prefix0 prev
+#  define head tab_prefix1
+   EXTERN(ush, tab_prefix0); /* prefix for even codes */
+   EXTERN(ush, tab_prefix1); /* prefix for odd  codes */
+#endif
+
+extern unsigned insize; /* valid bytes in inbuf */
+extern unsigned inptr;  /* index of next byte to be processed in inbuf */
+extern unsigned outcnt; /* bytes in output buffer */
+
+extern long bytes_in;   /* number of input bytes */
+extern long bytes_out;  /* number of output bytes */
+extern long header_bytes;/* number of bytes in gzip header */
+
+extern int  ifd;        /* input file descriptor */
+extern int  ofd;        /* output file descriptor */
+
+extern long ifile_size; /* input file size, -1 for devices (debug only) */
+
+typedef int file_t;     /* Do not use stdio */
+#define NO_FILE  (-1)   /* in memory compression */
+
+
+#define	GZIP_MAGIC     "\037\213" /* Magic header for gzip files, 1F 8B */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+#ifndef WSIZE
+#  define WSIZE 0x8000     /* window size--must be a power of two, and */
+#endif                     /*  at least 32K for zip's deflate method */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST  (WSIZE-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+extern int exit_code;      /* program exit code */
+extern int verbose;        /* be verbose (-v) */
+extern int level;          /* compression level */
+extern int test;           /* check .z file integrity */
+extern int to_stdout;      /* output to stdout (-c) */
+extern int save_orig_name; /* set if original name must be saved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
+#define try_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
+
+/* put_byte is used for the compressed output, put_ubyte for the
+ * uncompressed output. However unlzw() uses window for its
+ * suffix table instead of its output buffer, so it does not use put_ubyte
+ * (to be cleaned up).
+ */
+#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
+   flush_outbuf();}
+#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
+   flush_window();}
+
+/* Output a 16 bit value, lsb first */
+#define put_short(w) \
+{ if (outcnt < OUTBUFSIZ-2) { \
+    outbuf[outcnt++] = (uch) ((w) & 0xff); \
+    outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
+  } else { \
+    put_byte((uch)((w) & 0xff)); \
+    put_byte((uch)((ush)(w) >> 8)); \
+  } \
+}
+
+/* Output a 32 bit value to the bit stream, lsb first */
+#define put_long(n) { \
+    put_short((n) & 0xffff); \
+    put_short(((ulg)(n)) >> 16); \
+}
+
+#define seekable()    0  /* force sequential output */
+#define translate_eol 0  /* no option -a yet */
+
+#define tolow(c)  (isupper(c) ? (c)-'A'+'a' : (c))    /* force to lower case */
+
+/* Macros for getting two-byte and four-byte header values */
+#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
+#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+#define WARN(msg) {fprintf msg ; \
+		   if (exit_code == OK) exit_code = WARNING;}
+
+	/* in unzip.c */
+extern int unzip      OF((int in, int out));
+
+	/* in gzip.c */
+RETSIGTYPE abort_gzip OF((void));
+
+        /* in deflate.c */
+void lm_init OF((int pack_level, ush *flags));
+ulg  deflate OF((void));
+
+        /* in trees.c */
+void ct_init     OF((ush *attr, int *method));
+int  ct_tally    OF((int dist, int lc));
+ulg  flush_block OF((char *buf, ulg stored_len, int eof));
+
+        /* in bits.c */
+void     bi_init    OF((file_t zipfile));
+void     send_bits  OF((int value, int length));
+unsigned bi_reverse OF((unsigned value, int length));
+void     bi_windup  OF((void));
+void     copy_block OF((char *buf, unsigned len, int header));
+extern   int (*read_buf) OF((char *buf, unsigned size));
+
+	/* in util.c: */
+extern int copy           OF((int in, int out));
+extern ulg  updcrc        OF((uch *s, unsigned n));
+extern void clear_bufs    OF((void));
+extern int  fill_inbuf    OF((int eof_ok));
+extern void flush_outbuf  OF((void));
+extern void flush_window  OF((void));
+extern void write_buf     OF((int fd, voidp buf, unsigned cnt));
+#ifndef __linux__
+extern char *basename     OF((char *fname));
+#endif	/* not __linux__ */
+extern void error         OF((char *m));
+extern void warn          OF((char *a, char *b));
+extern void read_error    OF((void));
+extern void write_error   OF((void));
+extern voidp xmalloc      OF((unsigned int size));
+
+	/* in inflate.c */
+extern int inflate OF((void));
+
+/* #include "lzw.h" */
+
+/* lzw.h -- define the lzw functions.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if !defined(OF) && defined(lint)
+#  include "gzip.h"
+#endif
+
+#ifndef BITS
+#  define BITS 16
+#endif
+#define INIT_BITS 9              /* Initial number of bits per code */
+
+#define	LZW_MAGIC  "\037\235"   /* Magic header for lzw files, 1F 9D */
+
+#define BIT_MASK    0x1f /* Mask for 'number of compression bits' */
+/* Mask 0x20 is reserved to mean a fourth header byte, and 0x40 is free.
+ * It's a pity that old uncompress does not check bit 0x20. That makes
+ * extension of the format actually undesirable because old compress
+ * would just crash on the new format instead of giving a meaningful
+ * error message. It does check the number of bits, but it's more
+ * helpful to say "unsupported format, get a new version" than
+ * "can only handle 16 bits".
+ */
+
+#define BLOCK_MODE  0x80
+/* Block compression: if table is full and compression rate is dropping,
+ * clear the dictionary.
+ */
+
+#define LZW_RESERVED 0x60 /* reserved bits */
+
+#define	CLEAR  256       /* flush the dictionary */
+#define FIRST  (CLEAR+1) /* first free entry */
+
+extern int maxbits;      /* max bits per code for LZW */
+extern int block_mode;   /* block compress mode -C compatible with 2.0 */
+
+extern int lzw    OF((int in, int out));
+extern int unlzw  OF((int in, int out));
+
+
+/* #include "revision.h" */
+
+/* revision.h -- define the version number
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#define VERSION "1.2.4"
+#define PATCHLEVEL 0
+#define REVDATE "18 Aug 93"
+
+/* This version does not support compression into old compress format: */
+#ifdef LZW
+#  undef LZW
+#endif
+
+/* $Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $ */
+
+/* #include "getopt.h" */
+
+/* Declarations for getopt.
+   Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifndef _GETOPT_H
+#define _GETOPT_H 1
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here.
+   Also, when `ordering' is RETURN_IN_ORDER,
+   each non-option ARGV-element is returned here.  */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns EOF, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+   for unrecognized options.  */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized.  */
+
+extern int optopt;
+
+/* Describe the long-named options requested by the application.
+   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+   of `struct option' terminated by an element containing a name which is
+   zero.
+
+   The field `has_arg' is:
+   no_argument		(or 0) if the option does not take an argument,
+   required_argument	(or 1) if the option requires an argument,
+   optional_argument 	(or 2) if the option takes an optional argument.
+
+   If the field `flag' is not NULL, it points to a variable that is set
+   to the value given in the field `val' when the option is found, but
+   left unchanged if the option is not found.
+
+   To have a long-named option do something other than set an `int' to
+   a compiled-in constant, such as set a value from `optarg', set the
+   option's `flag' field to zero and its `val' field to a nonzero
+   value (the equivalent single-letter option character, if there is
+   one).  For long options that have a zero `flag' field, `getopt'
+   returns the contents of the `val' field.  */
+
+struct option
+{
+#if	__STDC__
+  const char *name;
+#else
+  char *name;
+#endif
+  /* has_arg can't be an enum because some compilers complain about
+     type mismatches in all the code that assumes it is an int.  */
+  int has_arg;
+  int *flag;
+  int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'.  */
+
+#define	no_argument		0
+#define required_argument	1
+#define optional_argument	2
+
+#if __STDC__ || defined(PROTO)
+#if defined(__GNU_LIBRARY__)
+/* Many other libraries have conflicting prototypes for getopt, with
+   differences in the consts, in stdlib.h.  To avoid compilation
+   errors, only prototype getopt for the GNU C library.  */
+extern int getopt (int argc, char *const *argv, const char *shortopts);
+#endif /* not __GNU_LIBRARY__ */
+extern int getopt_long (int argc, char *const *argv, const char *shortopts,
+		        const struct option *longopts, int *longind);
+extern int getopt_long_only (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind);
+
+/* Internal only.  Users should not call this directly.  */
+extern int _getopt_internal (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind,
+			     int long_only);
+#else /* not __STDC__ */
+extern int getopt ();
+extern int getopt_long ();
+extern int getopt_long_only ();
+
+extern int _getopt_internal ();
+#endif /* not __STDC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _GETOPT_H */
+
+
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <stdlib.h>
+
+#if defined(DIRENT)
+#  include <dirent.h>
+   typedef struct dirent dir_type;
+#  define NLENGTH(dirent) ((int)strlen((dirent)->d_name))
+#  define DIR_OPT "DIRENT"
+#else
+#  define NLENGTH(dirent) ((dirent)->d_namlen)
+#  ifdef SYSDIR
+#    include <sys/dir.h>
+     typedef struct direct dir_type;
+#    define DIR_OPT "SYSDIR"
+#  else
+#    ifdef SYSNDIR
+#      include <sys/ndir.h>
+       typedef struct direct dir_type;
+#      define DIR_OPT "SYSNDIR"
+#    else
+#      ifdef NDIR
+#        include <ndir.h>
+         typedef struct direct dir_type;
+#        define DIR_OPT "NDIR"
+#      else
+#        define NO_DIR
+#        define DIR_OPT "NO_DIR"
+#      endif
+#    endif
+#  endif
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+#  define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+#  define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
+typedef RETSIGTYPE (*sig_type) OF((int));
+
+#ifndef	O_BINARY
+#  define  O_BINARY  0  /* creation mode for open() */
+#endif
+
+#ifndef O_CREAT
+   /* Pure BSD system? */
+#  include <sys/file.h>
+#  ifndef O_CREAT
+#    define O_CREAT FCREAT
+#  endif
+#  ifndef O_EXCL
+#    define O_EXCL FEXCL
+#  endif
+#endif
+
+#ifndef S_IRUSR
+#  define S_IRUSR 0400
+#endif
+#ifndef S_IWUSR
+#  define S_IWUSR 0200
+#endif
+#define RW_USER (S_IRUSR | S_IWUSR)  /* creation mode for open() */
+
+#ifndef MAX_PATH_LEN
+#  define MAX_PATH_LEN   1024 /* max pathname length */
+#endif
+
+#ifndef SEEK_END
+#  define SEEK_END 2
+#endif
+
+#ifdef NO_OFF_T
+  typedef long off_t;
+  off_t lseek OF((int fd, off_t offset, int whence));
+#endif
+
+
+		/* global buffers */
+
+DECLARE(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+DECLARE(ush, d_buf,  DIST_BUFSIZE);
+DECLARE(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    DECLARE(ush, tab_prefix, 1L<<BITS);
+#else
+    DECLARE(ush, tab_prefix0, 1L<<(BITS-1));
+    DECLARE(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+		/* local variables */
+
+int force = 0;        /* don't ask questions, compress links (-f) */
+int foreground;       /* set if program run in foreground */
+int maxbits = BITS;   /* max bits per code for LZW */
+int method = DEFLATED;/* compression method */
+int exit_code = OK;   /* program exit code */
+int last_member;      /* set for .zip and .Z files */
+int part_nb;          /* number of parts in .gz file */
+long ifile_size;      /* input file size, -1 for devices (debug only) */
+
+long bytes_in;             /* number of input bytes */
+long bytes_out;            /* number of output bytes */
+long total_in = 0;         /* input bytes for all files */
+long total_out = 0;        /* output bytes for all files */
+struct stat istat;         /* status for input file */
+int  ifd;                  /* input file descriptor */
+int  ofd;                  /* output file descriptor */
+unsigned insize;           /* valid bytes in inbuf */
+unsigned inptr;            /* index of next byte to be processed in inbuf */
+unsigned outcnt;           /* bytes in output buffer */
+
+long header_bytes;   /* number of bytes in gzip header */
+
+/* local functions */
+
+local void treat_stdin  OF((void));
+local int  get_method   OF((int in));
+local void do_exit      OF((int exitcode));
+      int main          OF((int argc, char **argv));
+int (*work) OF((int infile, int outfile)) = unzip; /* function to call */
+
+#define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
+
+/* ======================================================================== */
+int zcat_main (struct FileInfo * i, int argc, char * * argv)
+{
+    int file_count;     /* number of files to precess */
+
+    foreground = signal(SIGINT, SIG_IGN) != SIG_IGN;
+    if (foreground) {
+	(void) signal (SIGINT, (sig_type)abort_gzip);
+    }
+#ifdef SIGTERM
+    if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGTERM, (sig_type)abort_gzip);
+    }
+#endif
+#ifdef SIGHUP
+    if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
+	(void) signal(SIGHUP,  (sig_type)abort_gzip);
+    }
+#endif
+
+    file_count = argc - optind;
+
+    /* Allocate all global buffers (for DYN_ALLOC option) */
+    ALLOC(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
+    ALLOC(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+    ALLOC(ush, d_buf,  DIST_BUFSIZE);
+    ALLOC(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+    ALLOC(ush, tab_prefix, 1L<<BITS);
+#else
+    ALLOC(ush, tab_prefix0, 1L<<(BITS-1));
+    ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+    /* And get to work */
+    treat_stdin();
+
+    do_exit(exit_code);
+    return exit_code; /* just to avoid lint warning */
+}
+
+/* ========================================================================
+ * Compress or decompress stdin
+ */
+local void treat_stdin()
+{
+    ifile_size = -1L; /* convention for unknown size */
+
+    clear_bufs(); /* clear input and output buffers */
+    part_nb = 0;
+
+    method = get_method(ifd);
+
+    if (method < 0) {
+      do_exit(exit_code); /* error message already emitted */
+    }
+
+    (*work)(fileno(stdin), fileno(stdout));
+
+}
+
+
+/* ========================================================================
+ * Check the magic number of the input file and update ofname if an
+ * original name was given and to_stdout is not set.
+ * Return the compression method, -1 for error, -2 for warning.
+ * Set inptr to the offset of the next byte to be processed.
+ * Updates time_stamp if there is one and --no-time is not used.
+ * This function may be called repeatedly for an input file consisting
+ * of several contiguous gzip'ed members.
+ * IN assertions: there is at least one remaining compressed member.
+ *   If the member is a zip file, it must be the only one.
+ */
+local int get_method(in)
+    int in;        /* input file descriptor */
+{
+    uch flags;     /* compression flags */
+    char magic[2]; /* magic header */
+
+    /* If --force and --stdout, zcat == cat, so do not complain about
+     * premature end of file: use try_byte instead of get_byte.
+     */
+    if (force) {
+	magic[0] = (char)try_byte();
+	magic[1] = (char)try_byte();
+	/* If try_byte returned EOF, magic[1] == 0xff */
+    } else {
+	magic[0] = (char)get_byte();
+	magic[1] = (char)get_byte();
+    }
+    method = -1;                 /* unknown yet */
+    part_nb++;                   /* number of parts in gzip file */
+    header_bytes = 0;
+    last_member = RECORD_IO;
+    /* assume multiple members in gzip file except for record oriented I/O */
+
+    if (memcmp(magic, GZIP_MAGIC, 2) == 0) {
+
+	method = (int)get_byte();
+	if (method != DEFLATED) {
+	    fprintf(stderr,
+		    "unknown method %d -- get newer version of gzip\n",
+		    method);
+	    exit_code = ERROR;
+	    return -1;
+	}
+	work = unzip;
+	flags  = (uch)get_byte();
+
+	(ulg)get_byte(); /* Ignore time stamp */
+	(ulg)get_byte();
+	(ulg)get_byte();
+	(ulg)get_byte();
+
+	(void)get_byte();  /* Ignore extra flags for the moment */
+	(void)get_byte();  /* Ignore OS type for the moment */
+
+	if ((flags & EXTRA_FIELD) != 0) {
+	    unsigned len = (unsigned)get_byte();
+	    len |= ((unsigned)get_byte())<<8;
+
+	    while (len--) (void)get_byte();
+	}
+
+	/* Discard original name if any */
+	if ((flags & ORIG_NAME) != 0) {
+	    while (get_char() != 0) /* null */ ;
+	}
+
+	/* Discard file comment if any */
+	if ((flags & COMMENT) != 0) {
+	    while (get_char() != 0) /* null */ ;
+	}
+	if (part_nb == 1) {
+	    header_bytes = inptr + 2*sizeof(long); /* include crc and size */
+	}
+
+    }
+
+    if (method >= 0) return method;
+
+    if (part_nb == 1) {
+	fprintf(stderr, "\nnot in gzip format\n");
+	exit_code = ERROR;
+	return -1;
+    } else {
+	WARN((stderr, "\ndecompression OK, trailing garbage ignored\n"));
+	return -2;
+    }
+}
+
+
+/* ========================================================================
+ * Free all dynamically allocated variables and exit with the given code.
+ */
+local void do_exit(exitcode)
+    int exitcode;
+{
+    static int in_exit = 0;
+
+    if (in_exit) exit(exitcode);
+    in_exit = 1;
+    FREE(inbuf);
+    FREE(outbuf);
+    FREE(d_buf);
+    FREE(window);
+#ifndef MAXSEG_64K
+    FREE(tab_prefix);
+#else
+    FREE(tab_prefix0);
+    FREE(tab_prefix1);
+#endif
+    exit(exitcode);
+}
+
+/* ========================================================================
+ * Signal and error handler.
+ */
+RETSIGTYPE abort_gzip()
+{
+   do_exit(ERROR);
+}
+/* unzip.c -- decompress files in gzip or pkzip format.
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ *
+ * The code in this file is derived from the file funzip.c written
+ * and put in the public domain by Mark Adler.
+ */
+
+/*
+   This version can extract files in gzip or pkzip format.
+   For the latter, only the first entry is extracted, and it has to be
+   either deflated or stored.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+/* #include "crypt.h" */
+
+/* crypt.h (dummy version) -- do not perform encryption
+ * Hardly worth copyrighting :-)
+ */
+
+#ifdef CRYPT
+#  undef CRYPT      /* dummy version */
+#endif
+
+#define RAND_HEAD_LEN  12  /* length of encryption random header */
+
+#define zencode
+#define zdecode
+
+/* PKZIP header definitions */
+#define LOCSIG 0x04034b50L      /* four-byte lead-in (lsb first) */
+#define LOCFLG 6                /* offset of bit flag */
+#define  CRPFLG 1               /*  bit for encrypted entry */
+#define  EXTFLG 8               /*  bit for extended local header */
+#define LOCHOW 8                /* offset of compression method */
+#define LOCTIM 10               /* file mod time (for decryption) */
+#define LOCCRC 14               /* offset of crc */
+#define LOCSIZ 18               /* offset of compressed size */
+#define LOCLEN 22               /* offset of uncompressed length */
+#define LOCFIL 26               /* offset of file name field length */
+#define LOCEXT 28               /* offset of extra field length */
+#define LOCHDR 30               /* size of local header, including sig */
+#define EXTHDR 16               /* size of extended local header, inc sig */
+
+
+/* Globals */
+
+char *key;          /* not used--needed to link crypt.c */
+int pkzip = 0;      /* set for a pkzip file */
+int ext_header = 0; /* set if extended local header */
+
+/* ===========================================================================
+ * Unzip in to out.  This routine works on both gzip and pkzip files.
+ *
+ * IN assertions: the buffer inbuf contains already the beginning of
+ *   the compressed data, from offsets inptr to insize-1 included.
+ *   The magic header has already been checked. The output buffer is cleared.
+ */
+int unzip(in, out)
+    int in, out;   /* input and output file descriptors */
+{
+    ulg orig_crc = 0;       /* original crc */
+    ulg orig_len = 0;       /* original uncompressed length */
+    int n;
+    uch buf[EXTHDR];        /* extended local header */
+
+    ifd = in;
+    ofd = out;
+
+    updcrc(NULL, 0);           /* initialize crc */
+
+    if (pkzip && !ext_header) {  /* crc and length at the end otherwise */
+	orig_crc = LG(inbuf + LOCCRC);
+	orig_len = LG(inbuf + LOCLEN);
+    }
+
+    /* Decompress */
+    if (method == DEFLATED)  {
+
+	int res = inflate();
+
+	if (res == 3) {
+	    error("out of memory");
+	} else if (res != 0) {
+	    error("invalid compressed data--format violated");
+	}
+
+    } else {
+	error("internal error, invalid method");
+    }
+
+    /* Get the crc and original length */
+    if (!pkzip) {
+        /* crc32  (see algorithm.doc)
+	 * uncompressed input size modulo 2^32
+         */
+	for (n = 0; n < 8; n++) {
+	    buf[n] = (uch)get_byte(); /* may cause an error if EOF */
+	}
+	orig_crc = LG(buf);
+	orig_len = LG(buf+4);
+
+    } else if (ext_header) {  /* If extended header, check it */
+	/* signature - 4bytes: 0x50 0x4b 0x07 0x08
+	 * CRC-32 value
+         * compressed size 4-bytes
+         * uncompressed size 4-bytes
+	 */
+	for (n = 0; n < EXTHDR; n++) {
+	    buf[n] = (uch)get_byte(); /* may cause an error if EOF */
+	}
+	orig_crc = LG(buf+4);
+	orig_len = LG(buf+12);
+    }
+
+    /* Validate decompression */
+    if (orig_crc != updcrc(outbuf, 0)) {
+	error("invalid compressed data--crc error");
+    }
+    if (orig_len != (ulg)bytes_out) {
+	error("invalid compressed data--length error");
+    }
+
+    /* Check if there are more entries in a pkzip file */
+    if (pkzip && inptr + 4 < insize && LG(inbuf+inptr) == LOCSIG) {
+      WARN((stderr,"has more than one entry--rest ignored\n"));
+    }
+    ext_header = pkzip = 0; /* for next file */
+    return OK;
+}
+/* util.c -- utility functions for gzip support
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#ifndef NO_FCNTL_H
+#  include <fcntl.h>
+#endif
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#else
+   extern int errno;
+#endif
+
+extern ulg crc_32_tab[];   /* crc table, defined below */
+
+/* ===========================================================================
+ * Run a set of bytes through the crc shift register.  If s is a NULL
+ * pointer, then initialize the crc shift register contents instead.
+ * Return the current crc in either case.
+ */
+ulg updcrc(s, n)
+    uch *s;                 /* pointer to bytes to pump through */
+    unsigned n;             /* number of bytes in s[] */
+{
+    register ulg c;         /* temporary variable */
+
+    static ulg crc = (ulg)0xffffffffL; /* shift register contents */
+
+    if (s == NULL) {
+	c = 0xffffffffL;
+    } else {
+	c = crc;
+        if (n) do {
+            c = crc_32_tab[((int)c ^ (*s++)) & 0xff] ^ (c >> 8);
+        } while (--n);
+    }
+    crc = c;
+    return c ^ 0xffffffffL;       /* (instead of ~c for 64-bit machines) */
+}
+
+/* ===========================================================================
+ * Clear input and output buffers
+ */
+void clear_bufs()
+{
+    outcnt = 0;
+    insize = inptr = 0;
+    bytes_in = bytes_out = 0L;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty.
+ */
+int fill_inbuf(eof_ok)
+    int eof_ok;          /* set if EOF acceptable as a result */
+{
+    int len;
+
+    /* Read as much as possible */
+    insize = 0;
+    errno = 0;
+    do {
+	len = read(ifd, (char*)inbuf+insize, INBUFSIZ-insize);
+        if (len == 0 || len == EOF) break;
+	insize += len;
+    } while (insize < INBUFSIZ);
+
+    if (insize == 0) {
+	if (eof_ok) return EOF;
+	read_error();
+    }
+    bytes_in += (ulg)insize;
+    inptr = 1;
+    return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output buffer outbuf[0..outcnt-1] and update bytes_out.
+ * (used for the compressed data only)
+ */
+void flush_outbuf()
+{
+    if (outcnt == 0) return;
+
+    write_buf(ofd, (char *)outbuf, outcnt);
+    bytes_out += (ulg)outcnt;
+    outcnt = 0;
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+void flush_window()
+{
+    if (outcnt == 0) return;
+    updcrc(window, outcnt);
+
+    write_buf(ofd, (char *)window, outcnt);
+
+    bytes_out += (ulg)outcnt;
+    outcnt = 0;
+}
+
+/* ===========================================================================
+ * Does the same as write(), but also handles partial pipe writes and checks
+ * for error return.
+ */
+void write_buf(fd, buf, cnt)
+    int       fd;
+    voidp     buf;
+    unsigned  cnt;
+{
+    unsigned  n;
+
+    while ((n = write(fd, buf, cnt)) != cnt) {
+	if (n == (unsigned)(-1)) {
+	    write_error();
+	}
+	cnt -= n;
+	buf = (voidp)((char*)buf+n);
+    }
+}
+
+#if defined(NO_STRING_H) && !defined(STDC_HEADERS)
+
+/* Provide missing strspn and strcspn functions. */
+
+#  ifndef __STDC__
+#    define const
+#  endif
+
+int strspn  OF((const char *s, const char *accept));
+int strcspn OF((const char *s, const char *reject));
+
+/* ========================================================================
+ * Return the length of the maximum initial segment
+ * of s which contains only characters in accept.
+ */
+int strspn(s, accept)
+    const char *s;
+    const char *accept;
+{
+    register const char *p;
+    register const char *a;
+    register int count = 0;
+
+    for (p = s; *p != '\0'; ++p) {
+	for (a = accept; *a != '\0'; ++a) {
+	    if (*p == *a) break;
+	}
+	if (*a == '\0') return count;
+	++count;
+    }
+    return count;
+}
+
+/* ========================================================================
+ * Return the length of the maximum inital segment of s
+ * which contains no characters from reject.
+ */
+int strcspn(s, reject)
+    const char *s;
+    const char *reject;
+{
+    register int count = 0;
+
+    while (*s != '\0') {
+	if (strchr(reject, *s++) != NULL) return count;
+	++count;
+    }
+    return count;
+}
+
+#endif /* NO_STRING_H */
+
+
+/* ========================================================================
+ * Error handlers.
+ */
+void error(m)
+    char *m;
+{
+    fprintf(stderr, "\n%s\n", m);
+    abort_gzip();
+}
+
+void warn(a, b)
+    char *a, *b;            /* message strings juxtaposed in output */
+{
+    WARN((stderr, "warning: %s%s\n", a, b));
+}
+
+void read_error()
+{
+    fprintf(stderr, "\n");
+    if (errno != 0) {
+	perror("");
+    } else {
+	fprintf(stderr, "unexpected end of file\n");
+    }
+    abort_gzip();
+}
+
+void write_error()
+{
+    fprintf(stderr, "\n");
+    perror("");
+    abort_gzip();
+}
+
+
+/* ========================================================================
+ * Semi-safe malloc -- never returns NULL.
+ */
+voidp xmalloc (size)
+    unsigned size;
+{
+    voidp cp = (voidp)malloc (size);
+
+    if (cp == NULL) error("out of memory");
+    return cp;
+}
+
+/* ========================================================================
+ * Table of CRC-32's of all single-byte values (made by makecrc.c)
+ */
+ulg crc_32_tab[] = {
+  0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+  0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+  0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+  0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+  0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+  0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+  0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+  0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+  0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+  0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+  0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+  0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+  0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+  0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+  0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+  0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+  0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+  0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+  0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+  0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+  0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+  0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+  0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+  0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+  0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+  0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+  0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+  0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+  0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+  0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+  0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+  0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+  0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+  0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+  0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+  0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+  0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+  0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+  0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+  0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+  0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+  0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+  0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+  0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+  0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+  0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+  0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+  0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+  0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+  0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+  0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+  0x2d02ef8dL
+};
+/* inflate.c -- Not copyrighted 1992 by Mark Adler
+   version c10p1, 10 January 1993 */
+
+/* You can do whatever you like with this source file, though I would
+   prefer that if you modify it and redistribute it that you include
+   comments to that effect with your name and the date.  Thank you.
+   [The history has been moved to the file ChangeLog.]
+ */
+
+/*
+   Inflate deflated (PKZIP's method 8 compressed) data.  The compression
+   method searches for as much of the current string of bytes (up to a
+   length of 258) in the previous 32K bytes.  If it doesn't find any
+   matches (of at least length 3), it codes the next byte.  Otherwise, it
+   codes the length of the matched string and its distance backwards from
+   the current position.  There is a single Huffman code that codes both
+   single bytes (called "literals") and match lengths.  A second Huffman
+   code codes the distance information, which follows a length code.  Each
+   length or distance code actually represents a base value and a number
+   of "extra" (sometimes zero) bits to get to add to the base value.  At
+   the end of each deflated block is a special end-of-block (EOB) literal/
+   length code.  The decoding process is basically: get a literal/length
+   code; if EOB then done; if a literal, emit the decoded byte; if a
+   length then get the distance and emit the referred-to bytes from the
+   sliding window of previously emitted data.
+
+   There are (currently) three kinds of inflate blocks: stored, fixed, and
+   dynamic.  The compressor deals with some chunk of data at a time, and
+   decides which method to use on a chunk-by-chunk basis.  A chunk might
+   typically be 32K or 64K.  If the chunk is uncompressible, then the
+   "stored" method is used.  In this case, the bytes are simply stored as
+   is, eight bits per byte, with none of the above coding.  The bytes are
+   preceded by a count, since there is no longer an EOB code.
+
+   If the data is compressible, then either the fixed or dynamic methods
+   are used.  In the dynamic method, the compressed data is preceded by
+   an encoding of the literal/length and distance Huffman codes that are
+   to be used to decode this block.  The representation is itself Huffman
+   coded, and so is preceded by a description of that code.  These code
+   descriptions take up a little space, and so for small blocks, there is
+   a predefined set of codes, called the fixed codes.  The fixed method is
+   used if the block codes up smaller that way (usually for quite small
+   chunks), otherwise the dynamic method is used.  In the latter case, the
+   codes are customized to the probabilities in the current block, and so
+   can code it much better than the pre-determined fixed codes.
+ 
+   The Huffman codes themselves are decoded using a mutli-level table
+   lookup, in order to maximize the speed of decoding plus the speed of
+   building the decoding tables.  See the comments below that precede the
+   lbits and dbits tuning parameters.
+ */
+
+
+/*
+   Notes beyond the 1.93a appnote.txt:
+
+   1. Distance pointers never point before the beginning of the output
+      stream.
+   2. Distance pointers can point back across blocks, up to 32k away.
+   3. There is an implied maximum of 7 bits for the bit length table and
+      15 bits for the actual data.
+   4. If only one code exists, then it is encoded using one bit.  (Zero
+      would be more efficient, but perhaps a little confusing.)  If two
+      codes exist, they are coded using one bit each (0 and 1).
+   5. There is no way of sending zero distance codes--a dummy must be
+      sent if there are none.  (History: a pre 2.0 version of PKZIP would
+      store blocks with no distance codes, but this was discovered to be
+      too harsh a criterion.)  Valid only for 1.93a.  2.04c does allow
+      zero distance codes, which is sent as one code of zero bits in
+      length.
+   6. There are up to 286 literal/length codes.  Code 256 represents the
+      end-of-block.  Note however that the static length tree defines
+      288 codes just to fill out the Huffman codes.  Codes 286 and 287
+      cannot be used though, since there is no length base or extra bits
+      defined for them.  Similarly, there are up to 30 distance codes.
+      However, static trees define 32 codes (all 5 bits) to fill out the
+      Huffman codes, but the last two had better not show up in the data.
+   7. Unzip can check dynamic Huffman blocks for complete code sets.
+      The exception is that a single code would not be complete (see #4).
+   8. The five bits following the block type is really the number of
+      literal codes sent minus 257.
+   9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
+      (1+6+6).  Therefore, to output three times the length, you output
+      three codes (1+1+1), whereas to output four times the same length,
+      you only need two codes (1+3).  Hmm.
+  10. In the tree reconstruction algorithm, Code = Code + Increment
+      only if BitLength(i) is not zero.  (Pretty obvious.)
+  11. Correction: 4 Bits: # of Bit Length codes - 4     (4 - 19)
+  12. Note: length code 284 can represent 227-258, but length code 285
+      really is 258.  The last length deserves its own, short code
+      since it gets used a lot in very redundant files.  The length
+      258 is special since 258 - 3 (the min match length) is 255.
+  13. The literal/length and distance code bit lengths are read as a
+      single stream of lengths.  It is possible (and advantageous) for
+      a repeat code (16, 17, or 18) to go across the boundary between
+      the two sets of lengths.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: zcat.c,v 1.1 1999/10/05 16:24:56 andersen Exp $";
+#endif
+
+#include <sys/types.h>
+
+#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
+#  include <stdlib.h>
+#endif
+
+
+#define slide window
+
+/* Huffman code lookup table entry--this entry is four bytes for machines
+   that have 16-bit pointers (e.g. PC's in the small or medium model).
+   Valid extra bits are 0..13.  e == 15 is EOB (end of block), e == 16
+   means that v is a literal, 16 < e < 32 means that v is a pointer to
+   the next table, which codes e - 16 bits, and lastly e == 99 indicates
+   an unused code.  If a code with e == 99 is looked up, this implies an
+   error in the data. */
+struct huft {
+  uch e;                /* number of extra bits or operation */
+  uch b;                /* number of bits in this code or subcode */
+  union {
+    ush n;              /* literal, length base, or distance base */
+    struct huft *t;     /* pointer to next level of table */
+  } v;
+};
+
+
+/* Function prototypes */
+int huft_build OF((unsigned *, unsigned, unsigned, ush *, ush *,
+                   struct huft **, int *));
+int huft_free OF((struct huft *));
+int inflate_codes OF((struct huft *, struct huft *, int, int));
+int inflate_stored OF((void));
+int inflate_fixed OF((void));
+int inflate_dynamic OF((void));
+int inflate_block OF((int *));
+int inflate OF((void));
+
+
+/* The inflate algorithm uses a sliding 32K byte window on the uncompressed
+   stream to find repeated byte strings.  This is implemented here as a
+   circular buffer.  The index is updated simply by incrementing and then
+   and'ing with 0x7fff (32K-1). */
+/* It is left to other modules to supply the 32K area.  It is assumed
+   to be usable as if it were declared "uch slide[32768];" or as just
+   "uch *slide;" and then malloc'ed in the latter case.  The definition
+   must be in unzip.h, included above. */
+/* unsigned wp;             current position in slide */
+#define wp outcnt
+#define flush_output(w) (wp=(w),flush_window())
+
+/* Tables for deflate from PKZIP's appnote.txt. */
+static unsigned border[] = {    /* Order of the bit length code lengths */
+        16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+static ush cplens[] = {         /* Copy lengths for literal codes 257..285 */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+        /* note: see note #13 above about the 258 in this list. */
+static ush cplext[] = {         /* Extra bits for literal codes 257..285 */
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+        3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 99, 99}; /* 99==invalid */
+static ush cpdist[] = {         /* Copy offsets for distance codes 0..29 */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+        8193, 12289, 16385, 24577};
+static ush cpdext[] = {         /* Extra bits for distance codes */
+        0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+        7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+        12, 12, 13, 13};
+
+
+
+/* Macros for inflate() bit peeking and grabbing.
+   The usage is:
+   
+        NEEDBITS(j)
+        x = b & mask_bits[j];
+        DUMPBITS(j)
+
+   where NEEDBITS makes sure that b has at least j bits in it, and
+   DUMPBITS removes the bits from b.  The macros use the variable k
+   for the number of bits in b.  Normally, b and k are register
+   variables for speed, and are initialized at the beginning of a
+   routine that uses these macros from a global bit buffer and count.
+
+   If we assume that EOB will be the longest code, then we will never
+   ask for bits with NEEDBITS that are beyond the end of the stream.
+   So, NEEDBITS should not read any more bytes than are needed to
+   meet the request.  Then no bytes need to be "returned" to the buffer
+   at the end of the last block.
+
+   However, this assumption is not true for fixed blocks--the EOB code
+   is 7 bits, but the other literal/length codes can be 8 or 9 bits.
+   (The EOB code is shorter than other codes because fixed blocks are
+   generally short.  So, while a block always has an EOB, many other
+   literal/length codes have a significantly lower probability of
+   showing up at all.)  However, by making the first table have a
+   lookup of seven bits, the EOB code will be found in that first
+   lookup, and so will not require that too many bits be pulled from
+   the stream.
+ */
+
+ulg bb;                         /* bit buffer */
+unsigned bk;                    /* bits in bit buffer */
+
+ush mask_bits[] = {
+    0x0000,
+    0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
+    0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
+};
+
+#ifdef CRYPT
+  uch cc;
+#  define NEXTBYTE() (cc = get_byte(), zdecode(cc), cc)
+#else
+#  define NEXTBYTE()  (uch)get_byte()
+#endif
+#define NEEDBITS(n) {while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}}
+#define DUMPBITS(n) {b>>=(n);k-=(n);}
+
+
+/*
+   Huffman code decoding is performed using a multi-level table lookup.
+   The fastest way to decode is to simply build a lookup table whose
+   size is determined by the longest code.  However, the time it takes
+   to build this table can also be a factor if the data being decoded
+   is not very long.  The most common codes are necessarily the
+   shortest codes, so those codes dominate the decoding time, and hence
+   the speed.  The idea is you can have a shorter table that decodes the
+   shorter, more probable codes, and then point to subsidiary tables for
+   the longer codes.  The time it costs to decode the longer codes is
+   then traded against the time it takes to make longer tables.
+
+   This results of this trade are in the variables lbits and dbits
+   below.  lbits is the number of bits the first level table for literal/
+   length codes can decode in one step, and dbits is the same thing for
+   the distance codes.  Subsequent tables are also less than or equal to
+   those sizes.  These values may be adjusted either when all of the
+   codes are shorter than that, in which case the longest code length in
+   bits is used, or when the shortest code is *longer* than the requested
+   table size, in which case the length of the shortest code in bits is
+   used.
+
+   There are two different values for the two tables, since they code a
+   different number of possibilities each.  The literal/length table
+   codes 286 possible values, or in a flat code, a little over eight
+   bits.  The distance table codes 30 possible values, or a little less
+   than five bits, flat.  The optimum values for speed end up being
+   about one bit more than those, so lbits is 8+1 and dbits is 5+1.
+   The optimum values may differ though from machine to machine, and
+   possibly even between compilers.  Your mileage may vary.
+ */
+
+
+int lbits = 9;          /* bits in base literal/length lookup table */
+int dbits = 6;          /* bits in base distance lookup table */
+
+
+/* If BMAX needs to be larger than 16, then h and x[] should be ulg. */
+#define BMAX 16         /* maximum bit length of any code (16 for explode) */
+#define N_MAX 288       /* maximum number of codes in any set */
+
+
+unsigned hufts;         /* track memory usage */
+
+
+int huft_build(b, n, s, d, e, t, m)
+unsigned *b;            /* code lengths in bits (all assumed <= BMAX) */
+unsigned n;             /* number of codes (assumed <= N_MAX) */
+unsigned s;             /* number of simple-valued codes (0..s-1) */
+ush *d;                 /* list of base values for non-simple codes */
+ush *e;                 /* list of extra bits for non-simple codes */
+struct huft **t;        /* result: starting table */
+int *m;                 /* maximum lookup bits, returns actual */
+/* Given a list of code lengths and a maximum table size, make a set of
+   tables to decode that set of codes.  Return zero on success, one if
+   the given code set is incomplete (the tables are still built in this
+   case), two if the input is invalid (all zero length codes or an
+   oversubscribed set of lengths), and three if not enough memory. */
+{
+  unsigned a;                   /* counter for codes of length k */
+  unsigned c[BMAX+1];           /* bit length count table */
+  unsigned f;                   /* i repeats in table every f entries */
+  int g;                        /* maximum code length */
+  int h;                        /* table level */
+  register unsigned i;          /* counter, current code */
+  register unsigned j;          /* counter */
+  register int k;               /* number of bits in current code */
+  int l;                        /* bits per table (returned in m) */
+  register unsigned *p;         /* pointer into c[], b[], or v[] */
+  register struct huft *q;      /* points to current table */
+  struct huft r;                /* table entry for structure assignment */
+  struct huft *u[BMAX];         /* table stack */
+  unsigned v[N_MAX];            /* values in order of bit length */
+  register int w;               /* bits before this table == (l * h) */
+  unsigned x[BMAX+1];           /* bit offsets, then code stack */
+  unsigned *xp;                 /* pointer into x */
+  int y;                        /* number of dummy codes added */
+  unsigned z;                   /* number of entries in current table */
+
+
+  /* Generate counts for each bit length */
+  memzero(c, sizeof(c));
+  p = b;  i = n;
+  do {
+    Tracecv(*p, (stderr, (n-i >= ' ' && n-i <= '~' ? "%c %d\n" : "0x%x %d\n"), 
+	    n-i, *p));
+    c[*p]++;                    /* assume all entries <= BMAX */
+    p++;                      /* Can't combine with above line (Solaris bug) */
+  } while (--i);
+  if (c[0] == n)                /* null input--all zero length codes */
+  {
+    *t = (struct huft *)NULL;
+    *m = 0;
+    return 0;
+  }
+
+
+  /* Find minimum and maximum length, bound *m by those */
+  l = *m;
+  for (j = 1; j <= BMAX; j++)
+    if (c[j])
+      break;
+  k = j;                        /* minimum code length */
+  if ((unsigned)l < j)
+    l = j;
+  for (i = BMAX; i; i--)
+    if (c[i])
+      break;
+  g = i;                        /* maximum code length */
+  if ((unsigned)l > i)
+    l = i;
+  *m = l;
+
+
+  /* Adjust last length count to fill out codes, if needed */
+  for (y = 1 << j; j < i; j++, y <<= 1)
+    if ((y -= c[j]) < 0)
+      return 2;                 /* bad input: more codes than bits */
+  if ((y -= c[i]) < 0)
+    return 2;
+  c[i] += y;
+
+
+  /* Generate starting offsets into the value table for each length */
+  x[1] = j = 0;
+  p = c + 1;  xp = x + 2;
+  while (--i) {                 /* note that i == g from above */
+    *xp++ = (j += *p++);
+  }
+
+
+  /* Make a table of values in order of bit lengths */
+  p = b;  i = 0;
+  do {
+    if ((j = *p++) != 0)
+      v[x[j]++] = i;
+  } while (++i < n);
+
+
+  /* Generate the Huffman codes and for each, make the table entries */
+  x[0] = i = 0;                 /* first Huffman code is zero */
+  p = v;                        /* grab values in bit order */
+  h = -1;                       /* no tables yet--level -1 */
+  w = -l;                       /* bits decoded == (l * h) */
+  u[0] = (struct huft *)NULL;   /* just to keep compilers happy */
+  q = (struct huft *)NULL;      /* ditto */
+  z = 0;                        /* ditto */
+
+  /* go through the bit lengths (k already is bits in shortest code) */
+  for (; k <= g; k++)
+  {
+    a = c[k];
+    while (a--)
+    {
+      /* here i is the Huffman code of length k bits for value *p */
+      /* make tables up to required level */
+      while (k > w + l)
+      {
+        h++;
+        w += l;                 /* previous table always l bits */
+
+        /* compute minimum size table less than or equal to l bits */
+        z = (z = g - w) > (unsigned)l ? l : z;  /* upper limit on table size */
+        if ((f = 1 << (j = k - w)) > a + 1)     /* try a k-w bit table */
+        {                       /* too few codes for k-w bit table */
+          f -= a + 1;           /* deduct codes from patterns left */
+          xp = c + k;
+          while (++j < z)       /* try smaller tables up to z bits */
+          {
+            if ((f <<= 1) <= *++xp)
+              break;            /* enough codes to use up j bits */
+            f -= *xp;           /* else deduct codes from patterns */
+          }
+        }
+        z = 1 << j;             /* table entries for j-bit table */
+
+        /* allocate and link in new table */
+        if ((q = (struct huft *)malloc((z + 1)*sizeof(struct huft))) ==
+            (struct huft *)NULL)
+        {
+          if (h)
+            huft_free(u[0]);
+          return 3;             /* not enough memory */
+        }
+        hufts += z + 1;         /* track memory usage */
+        *t = q + 1;             /* link to list for huft_free() */
+        *(t = &(q->v.t)) = (struct huft *)NULL;
+        u[h] = ++q;             /* table starts after link */
+
+        /* connect to last table, if there is one */
+        if (h)
+        {
+          x[h] = i;             /* save pattern for backing up */
+          r.b = (uch)l;         /* bits to dump before this table */
+          r.e = (uch)(16 + j);  /* bits in this table */
+          r.v.t = q;            /* pointer to this table */
+          j = i >> (w - l);     /* (get around Turbo C bug) */
+          u[h-1][j] = r;        /* connect to last table */
+        }
+      }
+
+      /* set up table entry in r */
+      r.b = (uch)(k - w);
+      if (p >= v + n)
+        r.e = 99;               /* out of values--invalid code */
+      else if (*p < s)
+      {
+        r.e = (uch)(*p < 256 ? 16 : 15);    /* 256 is end-of-block code */
+        r.v.n = (ush)(*p);             /* simple code is just the value */
+	p++;                           /* one compiler does not like *p++ */
+      }
+      else
+      {
+        r.e = (uch)e[*p - s];   /* non-simple--look up in lists */
+        r.v.n = d[*p++ - s];
+      }
+
+      /* fill code-like entries with r */
+      f = 1 << (k - w);
+      for (j = i >> w; j < z; j += f)
+        q[j] = r;
+
+      /* backwards increment the k-bit code i */
+      for (j = 1 << (k - 1); i & j; j >>= 1)
+        i ^= j;
+      i ^= j;
+
+      /* backup over finished tables */
+      while ((i & ((1 << w) - 1)) != x[h])
+      {
+        h--;                    /* don't need to update q */
+        w -= l;
+      }
+    }
+  }
+
+
+  /* Return true (1) if we were given an incomplete table */
+  return y != 0 && g != 1;
+}
+
+
+
+int huft_free(t)
+struct huft *t;         /* table to free */
+/* Free the malloc'ed tables built by huft_build(), which makes a linked
+   list of the tables it made, with the links in a dummy first entry of
+   each table. */
+{
+  register struct huft *p, *q;
+
+
+  /* Go through linked list, freeing from the malloced (t[-1]) address. */
+  p = t;
+  while (p != (struct huft *)NULL)
+  {
+    q = (--p)->v.t;
+    free((char*)p);
+    p = q;
+  } 
+  return 0;
+}
+
+
+int inflate_codes(tl, td, bl, bd)
+struct huft *tl, *td;   /* literal/length and distance decoder tables */
+int bl, bd;             /* number of bits decoded by tl[] and td[] */
+/* inflate (decompress) the codes in a deflated (compressed) block.
+   Return an error code or zero if it all goes ok. */
+{
+  register unsigned e;  /* table entry flag/number of extra bits */
+  unsigned n, d;        /* length and index for copy */
+  unsigned w;           /* current window position */
+  struct huft *t;       /* pointer to table entry */
+  unsigned ml, md;      /* masks for bl and bd bits */
+  register ulg b;       /* bit buffer */
+  register unsigned k;  /* number of bits in bit buffer */
+
+
+  /* make local copies of globals */
+  b = bb;                       /* initialize bit buffer */
+  k = bk;
+  w = wp;                       /* initialize window position */
+
+  /* inflate the coded data */
+  ml = mask_bits[bl];           /* precompute masks for speed */
+  md = mask_bits[bd];
+  for (;;)                      /* do until end of block */
+  {
+    NEEDBITS((unsigned)bl)
+    if ((e = (t = tl + ((unsigned)b & ml))->e) > 16)
+      do {
+        if (e == 99)
+          return 1;
+        DUMPBITS(t->b)
+        e -= 16;
+        NEEDBITS(e)
+      } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
+    DUMPBITS(t->b)
+    if (e == 16)                /* then it's a literal */
+    {
+      slide[w++] = (uch)t->v.n;
+      Tracevv((stderr, "%c", slide[w-1]));
+      if (w == WSIZE)
+      {
+        flush_output(w);
+        w = 0;
+      }
+    }
+    else                        /* it's an EOB or a length */
+    {
+      /* exit if end of block */
+      if (e == 15)
+        break;
+
+      /* get length of block to copy */
+      NEEDBITS(e)
+      n = t->v.n + ((unsigned)b & mask_bits[e]);
+      DUMPBITS(e);
+
+      /* decode distance of block to copy */
+      NEEDBITS((unsigned)bd)
+      if ((e = (t = td + ((unsigned)b & md))->e) > 16)
+        do {
+          if (e == 99)
+            return 1;
+          DUMPBITS(t->b)
+          e -= 16;
+          NEEDBITS(e)
+        } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
+      DUMPBITS(t->b)
+      NEEDBITS(e)
+      d = w - t->v.n - ((unsigned)b & mask_bits[e]);
+      DUMPBITS(e)
+      Tracevv((stderr,"\\[%d,%d]", w-d, n));
+
+      /* do the copy */
+      do {
+        n -= (e = (e = WSIZE - ((d &= WSIZE-1) > w ? d : w)) > n ? n : e);
+#if !defined(NOMEMCPY) && !defined(DEBUG)
+        if (w - d >= e)         /* (this test assumes unsigned comparison) */
+        {
+          memcpy(slide + w, slide + d, e);
+          w += e;
+          d += e;
+        }
+        else                      /* do it slow to avoid memcpy() overlap */
+#endif /* !NOMEMCPY */
+          do {
+            slide[w++] = slide[d++];
+	    Tracevv((stderr, "%c", slide[w-1]));
+          } while (--e);
+        if (w == WSIZE)
+        {
+          flush_output(w);
+          w = 0;
+        }
+      } while (n);
+    }
+  }
+
+
+  /* restore the globals from the locals */
+  wp = w;                       /* restore global window pointer */
+  bb = b;                       /* restore global bit buffer */
+  bk = k;
+
+  /* done */
+  return 0;
+}
+
+
+
+int inflate_stored()
+/* "decompress" an inflated type 0 (stored) block. */
+{
+  unsigned n;           /* number of bytes in block */
+  unsigned w;           /* current window position */
+  register ulg b;       /* bit buffer */
+  register unsigned k;  /* number of bits in bit buffer */
+
+
+  /* make local copies of globals */
+  b = bb;                       /* initialize bit buffer */
+  k = bk;
+  w = wp;                       /* initialize window position */
+
+
+  /* go to byte boundary */
+  n = k & 7;
+  DUMPBITS(n);
+
+
+  /* get the length and its complement */
+  NEEDBITS(16)
+  n = ((unsigned)b & 0xffff);
+  DUMPBITS(16)
+  NEEDBITS(16)
+  if (n != (unsigned)((~b) & 0xffff))
+    return 1;                   /* error in compressed data */
+  DUMPBITS(16)
+
+
+  /* read and output the compressed data */
+  while (n--)
+  {
+    NEEDBITS(8)
+    slide[w++] = (uch)b;
+    if (w == WSIZE)
+    {
+      flush_output(w);
+      w = 0;
+    }
+    DUMPBITS(8)
+  }
+
+
+  /* restore the globals from the locals */
+  wp = w;                       /* restore global window pointer */
+  bb = b;                       /* restore global bit buffer */
+  bk = k;
+  return 0;
+}
+
+
+
+int inflate_fixed()
+/* decompress an inflated type 1 (fixed Huffman codes) block.  We should
+   either replace this with a custom decoder, or at least precompute the
+   Huffman tables. */
+{
+  int i;                /* temporary variable */
+  struct huft *tl;      /* literal/length code table */
+  struct huft *td;      /* distance code table */
+  int bl;               /* lookup bits for tl */
+  int bd;               /* lookup bits for td */
+  unsigned l[288];      /* length list for huft_build */
+
+
+  /* set up literal table */
+  for (i = 0; i < 144; i++)
+    l[i] = 8;
+  for (; i < 256; i++)
+    l[i] = 9;
+  for (; i < 280; i++)
+    l[i] = 7;
+  for (; i < 288; i++)          /* make a complete, but wrong code set */
+    l[i] = 8;
+  bl = 7;
+  if ((i = huft_build(l, 288, 257, cplens, cplext, &tl, &bl)) != 0)
+    return i;
+
+
+  /* set up distance table */
+  for (i = 0; i < 30; i++)      /* make an incomplete code set */
+    l[i] = 5;
+  bd = 5;
+  if ((i = huft_build(l, 30, 0, cpdist, cpdext, &td, &bd)) > 1)
+  {
+    huft_free(tl);
+    return i;
+  }
+
+
+  /* decompress until an end-of-block code */
+  if (inflate_codes(tl, td, bl, bd))
+    return 1;
+
+
+  /* free the decoding tables, return */
+  huft_free(tl);
+  huft_free(td);
+  return 0;
+}
+
+
+
+int inflate_dynamic()
+/* decompress an inflated type 2 (dynamic Huffman codes) block. */
+{
+  int i;                /* temporary variables */
+  unsigned j;
+  unsigned l;           /* last length */
+  unsigned m;           /* mask for bit lengths table */
+  unsigned n;           /* number of lengths to get */
+  struct huft *tl;      /* literal/length code table */
+  struct huft *td;      /* distance code table */
+  int bl;               /* lookup bits for tl */
+  int bd;               /* lookup bits for td */
+  unsigned nb;          /* number of bit length codes */
+  unsigned nl;          /* number of literal/length codes */
+  unsigned nd;          /* number of distance codes */
+#ifdef PKZIP_BUG_WORKAROUND
+  unsigned ll[288+32];  /* literal/length and distance code lengths */
+#else
+  unsigned ll[286+30];  /* literal/length and distance code lengths */
+#endif
+  register ulg b;       /* bit buffer */
+  register unsigned k;  /* number of bits in bit buffer */
+
+
+  /* make local bit buffer */
+  b = bb;
+  k = bk;
+
+
+  /* read in table lengths */
+  NEEDBITS(5)
+  nl = 257 + ((unsigned)b & 0x1f);      /* number of literal/length codes */
+  DUMPBITS(5)
+  NEEDBITS(5)
+  nd = 1 + ((unsigned)b & 0x1f);        /* number of distance codes */
+  DUMPBITS(5)
+  NEEDBITS(4)
+  nb = 4 + ((unsigned)b & 0xf);         /* number of bit length codes */
+  DUMPBITS(4)
+#ifdef PKZIP_BUG_WORKAROUND
+  if (nl > 288 || nd > 32)
+#else
+  if (nl > 286 || nd > 30)
+#endif
+    return 1;                   /* bad lengths */
+
+
+  /* read in bit-length-code lengths */
+  for (j = 0; j < nb; j++)
+  {
+    NEEDBITS(3)
+    ll[border[j]] = (unsigned)b & 7;
+    DUMPBITS(3)
+  }
+  for (; j < 19; j++)
+    ll[border[j]] = 0;
+
+
+  /* build decoding table for trees--single level, 7 bit lookup */
+  bl = 7;
+  if ((i = huft_build(ll, 19, 19, NULL, NULL, &tl, &bl)) != 0)
+  {
+    if (i == 1)
+      huft_free(tl);
+    return i;                   /* incomplete code set */
+  }
+
+
+  /* read in literal and distance code lengths */
+  n = nl + nd;
+  m = mask_bits[bl];
+  i = l = 0;
+  while ((unsigned)i < n)
+  {
+    NEEDBITS((unsigned)bl)
+    j = (td = tl + ((unsigned)b & m))->b;
+    DUMPBITS(j)
+    j = td->v.n;
+    if (j < 16)                 /* length of code in bits (0..15) */
+      ll[i++] = l = j;          /* save last length in l */
+    else if (j == 16)           /* repeat last length 3 to 6 times */
+    {
+      NEEDBITS(2)
+      j = 3 + ((unsigned)b & 3);
+      DUMPBITS(2)
+      if ((unsigned)i + j > n)
+        return 1;
+      while (j--)
+        ll[i++] = l;
+    }
+    else if (j == 17)           /* 3 to 10 zero length codes */
+    {
+      NEEDBITS(3)
+      j = 3 + ((unsigned)b & 7);
+      DUMPBITS(3)
+      if ((unsigned)i + j > n)
+        return 1;
+      while (j--)
+        ll[i++] = 0;
+      l = 0;
+    }
+    else                        /* j == 18: 11 to 138 zero length codes */
+    {
+      NEEDBITS(7)
+      j = 11 + ((unsigned)b & 0x7f);
+      DUMPBITS(7)
+      if ((unsigned)i + j > n)
+        return 1;
+      while (j--)
+        ll[i++] = 0;
+      l = 0;
+    }
+  }
+
+
+  /* free decoding table for trees */
+  huft_free(tl);
+
+
+  /* restore the global bit buffer */
+  bb = b;
+  bk = k;
+
+
+  /* build the decoding tables for literal/length and distance codes */
+  bl = lbits;
+  if ((i = huft_build(ll, nl, 257, cplens, cplext, &tl, &bl)) != 0)
+  {
+    if (i == 1) {
+      fprintf(stderr, " incomplete literal tree\n");
+      huft_free(tl);
+    }
+    return i;                   /* incomplete code set */
+  }
+  bd = dbits;
+  if ((i = huft_build(ll + nl, nd, 0, cpdist, cpdext, &td, &bd)) != 0)
+  {
+    if (i == 1) {
+      fprintf(stderr, " incomplete distance tree\n");
+#ifdef PKZIP_BUG_WORKAROUND
+      i = 0;
+    }
+#else
+      huft_free(td);
+    }
+    huft_free(tl);
+    return i;                   /* incomplete code set */
+#endif
+  }
+
+
+  /* decompress until an end-of-block code */
+  if (inflate_codes(tl, td, bl, bd))
+    return 1;
+
+
+  /* free the decoding tables, return */
+  huft_free(tl);
+  huft_free(td);
+  return 0;
+}
+
+
+
+int inflate_block(e)
+int *e;                 /* last block flag */
+/* decompress an inflated block */
+{
+  unsigned t;           /* block type */
+  register ulg b;       /* bit buffer */
+  register unsigned k;  /* number of bits in bit buffer */
+
+
+  /* make local bit buffer */
+  b = bb;
+  k = bk;
+
+
+  /* read in last block bit */
+  NEEDBITS(1)
+  *e = (int)b & 1;
+  DUMPBITS(1)
+
+
+  /* read in block type */
+  NEEDBITS(2)
+  t = (unsigned)b & 3;
+  DUMPBITS(2)
+
+
+  /* restore the global bit buffer */
+  bb = b;
+  bk = k;
+
+
+  /* inflate that block type */
+  if (t == 2)
+    return inflate_dynamic();
+  if (t == 0)
+    return inflate_stored();
+  if (t == 1)
+    return inflate_fixed();
+
+
+  /* bad block type */
+  return 2;
+}
+
+
+
+int inflate()
+/* decompress an inflated entry */
+{
+  int e;                /* last block flag */
+  int r;                /* result code */
+  unsigned h;           /* maximum struct huft's malloc'ed */
+
+
+  /* initialize window, bit buffer */
+  wp = 0;
+  bk = 0;
+  bb = 0;
+
+
+  /* decompress until the last block */
+  h = 0;
+  do {
+    hufts = 0;
+    if ((r = inflate_block(&e)) != 0)
+      return r;
+    if (hufts > h)
+      h = hufts;
+  } while (!e);
+
+  /* Undo too much lookahead. The next read will be byte aligned so we
+   * can discard unused bits in the last meaningful byte.
+   */
+  while (bk >= 8) {
+    bk -= 8;
+    inptr--;
+  }
+
+  /* flush out slide */
+  flush_output(wp);
+
+
+  /* return success */
+#ifdef DEBUG
+  fprintf(stderr, "<%u> ", h);
+#endif /* DEBUG */
+  return 0;
+}