Some updates to ash from vodz. Makes ash smaller. I made a few

changes, esp describing all the current ash configuration options.
Now ash adds 66k in the default configuration.

1 files changed, 0 insertions, 1225 deletions

diff --git a/ash.h b/ash.h
deleted file mode 100644
index ac25ddb1c..000000000
--- a/ash.h
+++ /dev/null
@@ -1,1225 +0,0 @@
-/*-
- * Copyright (c) 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*	$NetBSD: alias.h,v 1.4 1995/05/11 21:28:42 christos Exp $	*/
-
-#define ALIASINUSE	1
-#define ALIASDEAD	2
-
-struct alias {
-	struct alias *next;
-	char *name;
-	char *val;
-	int flag;
-};
-
-struct alias *lookupalias __P((const char *, int));
-static int aliascmd __P((int, char **));
-static int unaliascmd __P((int, char **));
-static void rmaliases __P((void));
-static int unalias __P((char *));
-static void printalias __P((const struct alias *));
-#define ARITH_NUM 257
-#define ARITH_LPAREN 258
-#define ARITH_RPAREN 259
-#define ARITH_OR 260
-#define ARITH_AND 261
-#define ARITH_BOR 262
-#define ARITH_BXOR 263
-#define ARITH_BAND 264
-#define ARITH_EQ 265
-#define ARITH_NE 266
-#define ARITH_LT 267
-#define ARITH_GT 268
-#define ARITH_GE 269
-#define ARITH_LE 270
-#define ARITH_LSHIFT 271
-#define ARITH_RSHIFT 272
-#define ARITH_ADD 273
-#define ARITH_SUB 274
-#define ARITH_MUL 275
-#define ARITH_DIV 276
-#define ARITH_REM 277
-#define ARITH_UNARYMINUS 278
-#define ARITH_UNARYPLUS 279
-#define ARITH_NOT 280
-#define ARITH_BNOT 281
-
-/*
- * This file was generated by the mkbuiltins program.
- */
-
-
-#define BUILTIN_SPECIAL 0x1
-#define BUILTIN_REGULAR 0x2
-#define BUILTIN_ASSIGN 0x4
-
-struct builtincmd {
-	const char *name;
-	int (*const builtinfunc) __P((int, char **));
-	unsigned flags;
-};
-
-extern const struct builtincmd builtincmds[];
-
-
-
-/*	$NetBSD: cd.h,v 1.2 1997/07/04 21:01:52 christos Exp $	*/
-static int	cdcmd __P((int, char **));
-static int	pwdcmd __P((int, char **));
-static void	setpwd __P((const char *, int));
-
-
-/*	$NetBSD: error.h,v 1.14 2001/02/04 19:52:06 christos Exp $	*/
-
-/*
- * Types of operations (passed to the errmsg routine).
- */
-
-#define E_OPEN 01	/* opening a file */
-#define E_CREAT 02	/* creating a file */
-#define E_EXEC 04	/* executing a program */
-
-
-/*
- * We enclose jmp_buf in a structure so that we can declare pointers to
- * jump locations.  The global variable handler contains the location to
- * jump to when an exception occurs, and the global variable exception
- * contains a code identifying the exeception.  To implement nested
- * exception handlers, the user should save the value of handler on entry
- * to an inner scope, set handler to point to a jmploc structure for the
- * inner scope, and restore handler on exit from the scope.
- */
-
-struct jmploc {
-	jmp_buf loc;
-};
-
-extern struct jmploc *handler;
-extern int exception;
-
-/* exceptions */
-#define EXINT 0		/* SIGINT received */
-#define EXERROR 1	/* a generic error */
-#define EXSHELLPROC 2	/* execute a shell procedure */
-#define EXEXEC 3	/* command execution failed */
-
-
-/*
- * These macros allow the user to suspend the handling of interrupt signals
- * over a period of time.  This is similar to SIGHOLD to or sigblock, but
- * much more efficient and portable.  (But hacking the kernel is so much
- * more fun than worrying about efficiency and portability. :-))
- */
-
-extern int suppressint;
-extern volatile int intpending;
-
-#define INTOFF suppressint++
-#ifdef REALLY_SMALL
-static void __inton __P((void));
-#define INTON __inton()
-#else
-#define INTON { if (--suppressint == 0 && intpending) onint(); }
-#endif
-#define FORCEINTON {suppressint = 0; if (intpending) onint();}
-#define CLEAR_PENDING_INT intpending = 0
-#define int_pending() intpending
-
-static void exraise __P((int)) __attribute__((__noreturn__));
-static void onint __P((void));
-static void error __P((const char *, ...)) __attribute__((__noreturn__));
-static void exerror __P((int, const char *, ...)) __attribute__((__noreturn__));
-static const char *errmsg __P((int, int));
-
-
-/*
- * BSD setjmp saves the signal mask, which violates ANSI C and takes time,
- * so we use _setjmp instead.
- */
-
-#if defined(BSD) && !defined(__SVR4) && !defined(__GLIBC__)
-#define setjmp(jmploc)	_setjmp(jmploc)
-#define longjmp(jmploc, val)	_longjmp(jmploc, val)
-#endif
-
-
-
-/*	$NetBSD: shell.h,v 1.13 2000/05/22 10:18:47 elric Exp $	*/
-
-/*
- * The follow should be set to reflect the type of system you have:
- *	JOBS -> 1 if you have Berkeley job control, 0 otherwise.
- *	SHORTNAMES -> 1 if your linker cannot handle long names.
- *	define BSD if you are running 4.2 BSD or later.
- *	define SYSV if you are running under System V.
- *	define DEBUG=1 to compile in debugging (set global "debug" to turn on)
- *	define DEBUG=2 to compile in and turn on debugging.
- *
- * When debugging is on, debugging info will be written to $HOME/trace and
- * a quit signal will generate a core dump.
- */
-
-
-#define JOBS 1
-#ifndef BSD
-#define BSD 1
-#endif
-
-#ifdef __STDC__
-typedef void *pointer;
-#ifndef NULL
-#define NULL (void *)0
-#endif
-#else /* not __STDC__ */
-typedef char *pointer;
-#ifndef NULL
-#define NULL 0
-#endif
-#endif /*  not __STDC__ */
-
-extern char nullstr[1];		/* null string */
-
-
-#ifdef DEBUG
-#define TRACE(param)	trace param
-#else
-#define TRACE(param)
-#endif
-
-
-
-
-/*
- * This file was generated by the mknodes program.
- */
-
-#define NSEMI 0
-#define NCMD 1
-#define NPIPE 2
-#define NREDIR 3
-#define NBACKGND 4
-#define NSUBSHELL 5
-#define NAND 6
-#define NOR 7
-#define NIF 8
-#define NWHILE 9
-#define NUNTIL 10
-#define NFOR 11
-#define NCASE 12
-#define NCLIST 13
-#define NDEFUN 14
-#define NARG 15
-#define NTO 16
-#define NFROM 17
-#define NFROMTO 18
-#define NAPPEND 19
-#define NTOOV 20
-#define NTOFD 21
-#define NFROMFD 22
-#define NHERE 23
-#define NXHERE 24
-#define NNOT 25
-
-
-
-struct nbinary {
-      int type;
-      union node *ch1;
-      union node *ch2;
-};
-
-
-struct ncmd {
-      int type;
-      int backgnd;
-      union node *assign;
-      union node *args;
-      union node *redirect;
-};
-
-
-struct npipe {
-      int type;
-      int backgnd;
-      struct nodelist *cmdlist;
-};
-
-
-struct nredir {
-      int type;
-      union node *n;
-      union node *redirect;
-};
-
-
-struct nif {
-      int type;
-      union node *test;
-      union node *ifpart;
-      union node *elsepart;
-};
-
-
-struct nfor {
-      int type;
-      union node *args;
-      union node *body;
-      char *var;
-};
-
-
-struct ncase {
-      int type;
-      union node *expr;
-      union node *cases;
-};
-
-
-struct nclist {
-      int type;
-      union node *next;
-      union node *pattern;
-      union node *body;
-};
-
-
-struct narg {
-      int type;
-      union node *next;
-      char *text;
-      struct nodelist *backquote;
-};
-
-
-struct nfile {
-      int type;
-      union node *next;
-      int fd;
-      union node *fname;
-      char *expfname;
-};
-
-
-struct ndup {
-      int type;
-      union node *next;
-      int fd;
-      int dupfd;
-      union node *vname;
-};
-
-
-struct nhere {
-      int type;
-      union node *next;
-      int fd;
-      union node *doc;
-};
-
-
-struct nnot {
-      int type;
-      union node *com;
-};
-
-
-union node {
-      int type;
-      struct nbinary nbinary;
-      struct ncmd ncmd;
-      struct npipe npipe;
-      struct nredir nredir;
-      struct nif nif;
-      struct nfor nfor;
-      struct ncase ncase;
-      struct nclist nclist;
-      struct narg narg;
-      struct nfile nfile;
-      struct ndup ndup;
-      struct nhere nhere;
-      struct nnot nnot;
-};
-
-
-struct nodelist {
-	struct nodelist *next;
-	union node *n;
-};
-
-
-#ifdef __STDC__
-union node *copyfunc(union node *);
-static void freefunc(union node *);
-#else
-union node *copyfunc();
-static void freefunc();
-#endif
-
-
-
-/*	$NetBSD: eval.h,v 1.10 2000/01/27 23:39:40 christos Exp $	*/
-extern char *commandname;	/* currently executing command */
-extern int exitstatus;		/* exit status of last command */
-extern struct strlist *cmdenviron;  /* environment for builtin command */
-
-
-struct backcmd {		/* result of evalbackcmd */
-	int fd;			/* file descriptor to read from */
-	char *buf;		/* buffer */
-	int nleft;		/* number of chars in buffer */
-	struct job *jp;		/* job structure for command */
-};
-
-static int evalcmd __P((int, char **));
-static void evalstring __P((char *, int));
-static void evaltree __P((union node *, int));
-static void evalbackcmd __P((union node *, struct backcmd *));
-static int bltincmd __P((int, char **));
-static int breakcmd __P((int, char **));
-static int returncmd __P((int, char **));
-static int execcmd __P((int, char **));
-
-/* in_function returns nonzero if we are currently evaluating a function */
-#define in_function()	funcnest
-extern int funcnest;
-extern int evalskip;
-
-/* reasons for skipping commands (see comment on breakcmd routine) */
-#define SKIPBREAK	1
-#define SKIPCONT	2
-#define SKIPFUNC	3
-#define SKIPFILE	4
-
-
-
-
-/*	$NetBSD: exec.h,v 1.17 2000/05/22 10:18:47 elric Exp $	*/
-
-/* values of cmdtype */
-#define CMDUNKNOWN -1		/* no entry in table for command */
-#define CMDNORMAL 0		/* command is an executable program */
-#define CMDBUILTIN 1		/* command is a shell builtin */
-#define CMDFUNCTION 2		/* command is a shell function */
-
-
-struct cmdentry {
-	int cmdtype;
-	union param {
-		int index;
-		union node *func;
-		const struct builtincmd *cmd;
-	} u;
-};
-
-
-#define DO_ERR	1		/* find_command prints errors */
-#define DO_ABS	2		/* find_command checks absolute paths */
-#define DO_NOFUN	4	/* find_command ignores functions */
-#define DO_BRUTE	8	/* find_command ignores hash table */
-
-extern const char *pathopt;	/* set by padvance */
-extern int exerrno;		/* last exec error */
-
-static void shellexec __P((char **, char **, const char *, int))
-    __attribute__((noreturn));
-static char *padvance __P((const char **, const char *));
-static int hashcmd __P((int, char **));
-static void find_command __P((char *, struct cmdentry *, int, const char *));
-struct builtincmd *find_builtin __P((char *));
-static void hashcd __P((void));
-static void changepath __P((const char *));
-static void deletefuncs __P((void));
-#ifdef notdef
-static void getcmdentry __P((char *, struct cmdentry *));
-#endif
-static void addcmdentry __P((char *, struct cmdentry *));
-static void defun __P((char *, union node *));
-static void unsetfunc __P((char *));
-#ifdef ASH_TYPE
-static int typecmd __P((int, char **));
-#endif
-static int commandcmd __P((int, char **));
-
-
-
-/*	$NetBSD: expand.h,v 1.12 1999/07/09 03:05:50 christos Exp $	*/
-struct strlist {
-	struct strlist *next;
-	char *text;
-};
-
-
-struct arglist {
-	struct strlist *list;
-	struct strlist **lastp;
-};
-
-/*
- * expandarg() flags
- */
-#define EXP_FULL	0x1	/* perform word splitting & file globbing */
-#define EXP_TILDE	0x2	/* do normal tilde expansion */
-#define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
-#define	EXP_REDIR	0x8	/* file glob for a redirection (1 match only) */
-#define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
-#define EXP_RECORD	0x20	/* need to record arguments for ifs breakup */
-
-
-static void expandhere __P((union node *, int));
-static void expandarg __P((union node *, struct arglist *, int));
-#ifdef ASH_MATH_SUPPORT
-static void expari __P((int));
-#endif
-#if !(defined(__GLIBC__) && !defined(FNMATCH_BROKEN) && !defined(GLOB_BROKEN))
-static int patmatch __P((char *, char *, int));
-#endif
-#if defined(__GLIBC__) && !defined(FNMATCH_BROKEN)
-#define rmescapes(p) _rmescapes((p), 0)
-static char *_rmescapes __P((char *, int));
-#else
-static void rmescapes __P((char *));
-#endif
-static int casematch __P((union node *, char *));
-
-
-#ifdef ASH_MATH_SUPPORT
-/* From arith.y */
-static int arith __P((const char *));
-static int expcmd __P((int , char **));
-static void arith_lex_reset __P((void));
-static int yylex __P((void));
-#endif	
-
-
-
-
-/*	$NetBSD: init.h,v 1.8 1995/05/11 21:29:14 christos Exp $	*/
-static void init __P((void));
-static void reset __P((void));
-static void initshellproc __P((void));
-
-
-
-/*	$NetBSD: input.h,v 1.12 2000/05/22 10:18:47 elric Exp $	*/
-
-/* PEOF (the end of file marker) is defined in syntax.h */
-/*
- * The input line number.  Input.c just defines this variable, and saves
- * and restores it when files are pushed and popped.  The user of this
- * package must set its value.
- */
-extern int plinno;
-extern int parsenleft;		/* number of characters left in input buffer */
-extern char *parsenextc;	/* next character in input buffer */
-
-static char *pfgets __P((char *, int));
-static int pgetc __P((void));
-static int pgetc2 __P((void));
-static int preadbuffer __P((void));
-static void pungetc __P((void));
-static void pushstring __P((char *, int, void *));
-static void popstring __P((void));
-static void setinputfile __P((const char *, int));
-static void setinputfd __P((int, int));
-static void setinputstring __P((char *));
-static void popfile __P((void));
-static void popallfiles __P((void));
-static void closescript __P((void));
-
-#define pgetc_macro()	(--parsenleft >= 0? *parsenextc++ : preadbuffer())
-
-
-
-/*	$NetBSD: jobs.h,v 1.12 2000/05/22 10:18:47 elric Exp $	*/
-
-/* Mode argument to forkshell.  Don't change FORK_FG or FORK_BG. */
-#define FORK_FG 0
-#define FORK_BG 1
-#define FORK_NOJOB 2
-
-
-/*
- * A job structure contains information about a job.  A job is either a
- * single process or a set of processes contained in a pipeline.  In the
- * latter case, pidlist will be non-NULL, and will point to a -1 terminated
- * array of pids.
- */
-
-struct procstat {
-	pid_t pid;		/* process id */
-	int status;		/* status flags (defined above) */
-	char *cmd;		/* text of command being run */
-};
-
-
-/* states */
-#define JOBSTOPPED 1		/* all procs are stopped */
-#define JOBDONE 2		/* all procs are completed */
-
-
-struct job {
-	struct procstat ps0;	/* status of process */
-	struct procstat *ps;	/* status or processes when more than one */
-	short nprocs;		/* number of processes */
-	short pgrp;		/* process group of this job */
-	char state;		/* true if job is finished */
-	char used;		/* true if this entry is in used */
-	char changed;		/* true if status has changed */
-#if JOBS
-	char jobctl;		/* job running under job control */
-#endif
-};
-
-extern short backgndpid;	/* pid of last background process */
-extern int job_warning;		/* user was warned about stopped jobs */
-
-static void setjobctl __P((int));
-static int killcmd __P((int, char **));
-static int fgcmd __P((int, char **));
-static int bgcmd __P((int, char **));
-static int jobscmd __P((int, char **));
-static void showjobs __P((int));
-static int waitcmd __P((int, char **));
-struct job *makejob __P((union node *, int));
-static int forkshell __P((struct job *, union node *, int));
-static int waitforjob __P((struct job *));
-static int stoppedjobs __P((void));
-static char *commandtext __P((union node *));
-
-#if ! JOBS
-#define setjobctl(on)	/* do nothing */
-#endif
-
-
-
-/*	$NetBSD: machdep.h,v 1.8 1995/05/11 21:29:21 christos Exp $	*/
-
-/*
- * Most machines require the value returned from malloc to be aligned
- * in some way.  The following macro will get this right on many machines.
- */
-
-#ifndef ALIGN
-union align {
-	int i;
-	char *cp;
-};
-
-#define ALIGN(nbytes)	(((nbytes) + sizeof(union align) - 1) & ~(sizeof(union align) - 1))
-#endif
-
-
-
-/*	$NetBSD: mail.h,v 1.8 1995/05/11 21:29:23 christos Exp $	*/
-
-static void chkmail __P((int));
-
-
-
-/*	$NetBSD: main.h,v 1.8 1995/05/11 21:29:27 christos Exp $	*/
-extern int rootpid;	/* pid of main shell */
-extern int rootshell;	/* true if we aren't a child of the main shell */
-
-static void readcmdfile __P((char *));
-static void cmdloop __P((int));
-static int dotcmd __P((int, char **));
-static int exitcmd __P((int, char **));
-
-
-
-/*	$NetBSD: memalloc.h,v 1.11 2000/11/01 19:56:01 christos Exp $	*/
-struct stackmark {
-	struct stack_block *stackp;
-	char *stacknxt;
-	int stacknleft;
-	struct stackmark *marknext;
-};
-
-
-extern char *stacknxt;
-extern int stacknleft;
-extern int sstrnleft;
-extern int herefd;
-
-static inline pointer  ckmalloc (int sz)          { return xmalloc(sz);     }
-static inline pointer  ckrealloc(void *p, int sz) { return xrealloc(p, sz); }
-static inline char *   savestr  (const char *s)   { return xstrdup(s);      }
-
-pointer stalloc __P((int));
-static void stunalloc __P((pointer));
-static void setstackmark __P((struct stackmark *));
-static void popstackmark __P((struct stackmark *));
-static void growstackblock __P((void));
-static void grabstackblock __P((int));
-static char *growstackstr __P((void));
-static char *makestrspace __P((size_t));
-static void ungrabstackstr __P((char *, char *));
-
-
-
-#define stackblock() stacknxt
-#define stackblocksize() stacknleft
-#define STARTSTACKSTR(p)	p = stackblock(), sstrnleft = stackblocksize()
-#define STPUTC(c, p)	(--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
-#define CHECKSTRSPACE(n, p)	{ if (sstrnleft < n) p = makestrspace(n); }
-#define USTPUTC(c, p)	(--sstrnleft, *p++ = (c))
-#define STACKSTRNUL(p)	(sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
-#define STUNPUTC(p)	(++sstrnleft, --p)
-#define STTOPC(p)	p[-1]
-#define STADJUST(amount, p)	(p += (amount), sstrnleft -= (amount))
-#define grabstackstr(p)	stalloc(stackblocksize() - sstrnleft)
-
-#define ckfree(p)	free((pointer)(p))
-
-
-
-/*	$NetBSD: miscbltin.h,v 1.1 1997/07/04 21:02:10 christos Exp $	*/
-static int readcmd __P((int, char **));
-static int umaskcmd __P((int, char **));
-static int ulimitcmd __P((int, char **));
-
-
-
-/*	$NetBSD: mystring.h,v 1.9 1995/05/11 21:29:42 christos Exp $	*/
-
-extern const char snlfmt[];
-extern const char spcstr[];
-
-#if 0
-static void scopyn __P((const char *, char *, int));
-#endif
-static int prefix __P((const char *, const char *));
-static int number __P((const char *));
-static int is_number __P((const char *));
-static char *single_quote __P((const char *));
-static char *sstrdup __P((const char *));
-static int pstrcmp __P((const void *, const void *));
-static const char *const *findstring __P((const char *, const char *const *, size_t));
-
-#define equal(s1, s2)	(strcmp(s1, s2) == 0)
-#define scopy(s1, s2)	((void)strcpy(s2, s1))
-
-
-/*	$NetBSD: options.h,v 1.14 2001/02/04 19:52:06 christos Exp $	*/
-
-struct shparam {
-	int nparam;		/* # of positional parameters (without $0) */
-	unsigned char malloc;	/* if parameter list dynamically allocated */
-	char **p;		/* parameter list */
-	int optind;		/* next parameter to be processed by getopts */
-	int optoff;		/* used by getopts */
-};
-
-
-
-#define eflag optlist[0].val
-#define fflag optlist[1].val
-#define Iflag optlist[2].val
-#define iflag optlist[3].val
-#define mflag optlist[4].val
-#define nflag optlist[5].val
-#define sflag optlist[6].val
-#define xflag optlist[7].val
-#define vflag optlist[8].val
-#define Vflag optlist[9].val
-#define	Eflag optlist[10].val
-#define	Cflag optlist[11].val
-#define	aflag optlist[12].val
-#define	bflag optlist[13].val
-#define	uflag optlist[14].val
-#define	qflag optlist[15].val
-
-#define NOPTS	16
-
-struct optent {
-	const char *name;
-	const char letter;
-	char val;
-};
-
-extern struct optent optlist[NOPTS];
-
-
-extern char *minusc;		/* argument to -c option */
-extern char *arg0;		/* $0 */
-extern struct shparam shellparam;  /* $@ */
-extern char **argptr;		/* argument list for builtin commands */
-extern char *optionarg;		/* set by nextopt */
-extern char *optptr;		/* used by nextopt */
-
-static void procargs __P((int, char **));
-static void optschanged __P((void));
-static void setparam __P((char **));
-static void freeparam __P((volatile struct shparam *));
-static int shiftcmd __P((int, char **));
-static int setcmd __P((int, char **));
-#ifdef ASH_GETOPTS
-static int getoptscmd __P((int, char **));
-static int setvarsafe __P((const char *, const char *, int));
-#endif
-static int nextopt __P((const char *));
-static void getoptsreset __P((const char *));
-
-
-
-/*	$NetBSD: output.h,v 1.14 1998/01/31 12:37:55 christos Exp $	*/
-struct output {
-#ifdef USE_GLIBC_STDIO
-	FILE *stream;
-#endif
-	char *nextc;
-	int nleft;
-	char *buf;
-	int bufsize;
-	int fd;
-	short flags;
-};
-
-extern struct output output;
-extern struct output errout;
-extern struct output memout;
-extern struct output *out1;
-extern struct output *out2;
-
-static void outstr __P((const char *, struct output *));
-#ifndef USE_GLIBC_STDIO
-static void outcslow __P((char, struct output *));
-#endif
-static void flushall __P((void));
-static void flushout __P((struct output *));
-static void freestdout __P((void));
-static void outfmt __P((struct output *, const char *, ...))
-    __attribute__((__format__(__printf__,2,3)));
-static void out1fmt __P((const char *, ...))
-    __attribute__((__format__(__printf__,1,2)));
-static void fmtstr __P((char *, size_t, const char *, ...))
-    __attribute__((__format__(__printf__,3,4)));
-#ifndef USE_GLIBC_STDIO
-static void doformat __P((struct output *, const char *, va_list));
-#endif
-static int xwrite __P((int, const char *, int));
-#ifdef USE_GLIBC_STDIO
-static void initstreams __P((void));
-static void openmemout __P((void));
-static int __closememout __P((void));
-#endif
-
-#define OUTPUT_ERR 01		/* error occurred on output */
-
-#ifdef USE_GLIBC_STDIO
-#define outc(c, o)	putc((c), (o)->stream)
-#define doformat(d, f, a)	vfprintf((d)->stream, (f), (a))
-#else
-#define outc(c, file)	(--(file)->nleft < 0? outcslow((c), (file)) : (*(file)->nextc = (c), (file)->nextc++))
-#endif
-#define out1c(c)	outc((c), out1)
-#define out2c(c)	outc((c), out2)
-#define out1str(s)	outstr((s), out1)
-#define out2str(s)	outstr((s), out2)
-#define outerr(f)	((f)->flags & OUTPUT_ERR)
-
-
-
-/*	$NetBSD: parser.h,v 1.14 2000/07/27 04:09:28 cgd Exp $	*/
-/* control characters in argument strings */
-#define CTLESC '\201'
-#define CTLVAR '\202'
-#define CTLENDVAR '\203'
-#define CTLBACKQ '\204'
-#define CTLQUOTE 01		/* ored with CTLBACKQ code if in quotes */
-/*	CTLBACKQ | CTLQUOTE == '\205' */
-#define	CTLARI	'\206'
-#define	CTLENDARI '\207'
-#define	CTLQUOTEMARK '\210'
-
-/* variable substitution byte (follows CTLVAR) */
-#define VSTYPE	0x0f		/* type of variable substitution */
-#define VSNUL	0x10		/* colon--treat the empty string as unset */
-#define VSQUOTE 0x80		/* inside double quotes--suppress splitting */
-
-/* values of VSTYPE field */
-#define VSNORMAL	0x1		/* normal variable:  $var or ${var} */
-#define VSMINUS		0x2		/* ${var-text} */
-#define VSPLUS		0x3		/* ${var+text} */
-#define VSQUESTION	0x4		/* ${var?message} */
-#define VSASSIGN	0x5		/* ${var=text} */
-#define VSTRIMLEFT	0x6		/* ${var#pattern} */
-#define VSTRIMLEFTMAX	0x7		/* ${var##pattern} */
-#define VSTRIMRIGHT	0x8		/* ${var%pattern} */
-#define VSTRIMRIGHTMAX 	0x9		/* ${var%%pattern} */
-#define VSLENGTH	0xa		/* ${#var} */
-
-
-/*
- * NEOF is returned by parsecmd when it encounters an end of file.  It
- * must be distinct from NULL, so we use the address of a variable that
- * happens to be handy.
- */
-extern int tokpushback;
-#define NEOF ((union node *)&tokpushback)
-extern int whichprompt;		/* 1 == PS1, 2 == PS2 */
-extern int checkalias;
-
-
-union node *parsecmd(int);
-static void fixredir(union node *, const char *, int);
-static int goodname(char *);
-static const char *getprompt(void *);
-static int isassignment __P((const char *));
-static const char *const *findkwd __P((const char *));
-
-
-/*	$NetBSD: redir.h,v 1.12 2000/05/22 10:18:47 elric Exp $	*/
-/* flags passed to redirect */
-#define REDIR_PUSH 01		/* save previous values of file descriptors */
-#define REDIR_BACKQ 02		/* save the command output in memory */
-
-extern int fileno2;
-
-static void redirect __P((union node *, int));
-static void popredir __P((void));
-static int fd0_redirected_p __P((void));
-static void clearredir __P((void));
-static int dup_as_newfd __P((int, int));
-
-
-
-
-/*	$NetBSD: show.h,v 1.4 1999/10/08 21:10:44 pk Exp $	*/
-#ifdef DEBUG
-static void trace __P((const char *, ...));
-static void trargs __P((char **));
-static void showtree __P((union node *));
-static void trputc __P((int));
-static void trputs __P((const char *));
-static void opentrace __P((void));
-#endif
-/*
- * This file was generated by the mksyntax program.
- */
-
-#ifdef CEOF
-#undef CEOF
-#endif
-
-/* Syntax classes */
-#define CWORD 0			/* character is nothing special */
-#define CNL 1			/* newline character */
-#define CBACK 2			/* a backslash character */
-#define CSQUOTE 3		/* single quote */
-#define CDQUOTE 4		/* double quote */
-#define CENDQUOTE 5		/* a terminating quote */
-#define CBQUOTE 6		/* backwards single quote */
-#define CVAR 7			/* a dollar sign */
-#define CENDVAR 8		/* a '}' character */
-#define CLP 9			/* a left paren in arithmetic */
-#define CRP 10			/* a right paren in arithmetic */
-#define CEOF 11			/* end of file */
-#define CCTL 12			/* like CWORD, except it must be escaped */
-#define CSPCL 13		/* these terminate a word */
-#define CIGN 14			/* character should be ignored */
-
-/* Syntax classes for is_ functions */
-#define ISDIGIT 01		/* a digit */
-#define ISUPPER 02		/* an upper case letter */
-#define ISLOWER 04		/* a lower case letter */
-#define ISUNDER 010		/* an underscore */
-#define ISSPECL 020		/* the name of a special parameter */
-
-#define SYNBASE 130
-#define PEOF -130
-
-#define PEOA -129
-
-
-#define BASESYNTAX (basesyntax + SYNBASE)
-#define DQSYNTAX (dqsyntax + SYNBASE)
-#define SQSYNTAX (sqsyntax + SYNBASE)
-#define ARISYNTAX (arisyntax + SYNBASE)
-
-#define is_digit(c)	((unsigned)((c) - '0') <= 9)
-#define is_alpha(c)	(((c) < CTLESC || (c) > CTLENDARI) && isalpha((unsigned char) (c)))
-#define is_name(c)	(((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalpha((unsigned char) (c))))
-#define is_in_name(c)	(((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalnum((unsigned char) (c))))
-#define is_special(c)	((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT))
-#define digit_val(c)	((c) - '0')
-
-extern const char basesyntax[];
-extern const char dqsyntax[];
-extern const char sqsyntax[];
-extern const char arisyntax[];
-extern const char is_type[];
-#define TEOF 0
-#define TNL 1
-#define TSEMI 2
-#define TBACKGND 3
-#define TAND 4
-#define TOR 5
-#define TPIPE 6
-#define TLP 7
-#define TRP 8
-#define TENDCASE 9
-#define TENDBQUOTE 10
-#define TREDIR 11
-#define TWORD 12
-#define TASSIGN 13
-#define TNOT 14
-#define TCASE 15
-#define TDO 16
-#define TDONE 17
-#define TELIF 18
-#define TELSE 19
-#define TESAC 20
-#define TFI 21
-#define TFOR 22
-#define TIF 23
-#define TIN 24
-#define TTHEN 25
-#define TUNTIL 26
-#define TWHILE 27
-#define TBEGIN 28
-#define TEND 29
-
-/* Array indicating which tokens mark the end of a list */
-static const char tokendlist[] = {
-	1,
-	0,
-	0,
-	0,
-	0,
-	0,
-	0,
-	0,
-	1,
-	1,
-	1,
-	0,
-	0,
-	0,
-	0,
-	0,
-	1,
-	1,
-	1,
-	1,
-	1,
-	1,
-	0,
-	0,
-	0,
-	1,
-	0,
-	0,
-	0,
-	1,
-};
-
-static const char *const tokname[] = {
-	"end of file",
-	"newline",
-	"\";\"",
-	"\"&\"",
-	"\"&&\"",
-	"\"||\"",
-	"\"|\"",
-	"\"(\"",
-	"\")\"",
-	"\";;\"",
-	"\"`\"",
-	"redirection",
-	"word",
-	"assignment",
-	"\"!\"",
-	"\"case\"",
-	"\"do\"",
-	"\"done\"",
-	"\"elif\"",
-	"\"else\"",
-	"\"esac\"",
-	"\"fi\"",
-	"\"for\"",
-	"\"if\"",
-	"\"in\"",
-	"\"then\"",
-	"\"until\"",
-	"\"while\"",
-	"\"{\"",
-	"\"}\"",
-};
-
-#define KWDOFFSET 14
-
-static const char *const parsekwd[] = {
-	"!",
-	"case",
-	"do",
-	"done",
-	"elif",
-	"else",
-	"esac",
-	"fi",
-	"for",
-	"if",
-	"in",
-	"then",
-	"until",
-	"while",
-	"{",
-	"}"
-};
-
-
-
-
-/*	$NetBSD: trap.h,v 1.14 2000/05/22 10:18:47 elric Exp $	*/
-extern int pendingsigs;
-
-static int trapcmd __P((int, char **));
-static void clear_traps __P((void));
-static void setsignal __P((int));
-static void ignoresig __P((int));
-static void onsig __P((int));
-static void dotrap __P((void));
-static void setinteractive __P((int));
-static void exitshell __P((int)) __attribute__((noreturn));
-static int decode_signal __P((const char *, int));
-
-
-
-/*	$NetBSD: var.h,v 1.18 2000/05/22 10:18:47 elric Exp $	*/
-
-/*
- * Shell variables.
- */
-
-/* flags */
-#define VEXPORT		0x01	/* variable is exported */
-#define VREADONLY	0x02	/* variable cannot be modified */
-#define VSTRFIXED	0x04	/* variable struct is staticly allocated */
-#define VTEXTFIXED	0x08	/* text is staticly allocated */
-#define VSTACK		0x10	/* text is allocated on the stack */
-#define VUNSET		0x20	/* the variable is not set */
-#define VNOFUNC		0x40	/* don't call the callback function */
-
-
-struct var {
-	struct var *next;		/* next entry in hash list */
-	int flags;			/* flags are defined above */
-	char *text;			/* name=value */
-	void (*func) __P((const char *));
-					/* function to be called when  */
-					/* the variable gets set/unset */
-};
-
-
-struct localvar {
-	struct localvar *next;		/* next local variable in list */
-	struct var *vp;			/* the variable that was made local */
-	int flags;			/* saved flags */
-	char *text;			/* saved text */
-};
-
-
-extern struct localvar *localvars;
-
-#if ATTY
-extern struct var vatty;
-#endif
-extern struct var vifs;
-extern struct var vmail;
-extern struct var vmpath;
-extern struct var vpath;
-extern struct var vps1;
-extern struct var vps2;
-#ifndef SMALL
-extern struct var vterm;
-extern struct var vtermcap;
-extern struct var vhistsize;
-#endif
-
-#ifdef IFS_BROKEN
-extern const char defifsvar[];
-#define defifs (defifsvar + 4)
-#else
-extern const char defifs[];
-#endif
-extern const char defpathvar[];
-#define defpath (defpathvar + 5)
-
-/*
- * The following macros access the values of the above variables.
- * They have to skip over the name.  They return the null string
- * for unset variables.
- */
-
-#define ifsval()	(vifs.text + 4)
-#define ifsset()	((vifs.flags & VUNSET) == 0)
-#define mailval()	(vmail.text + 5)
-#define mpathval()	(vmpath.text + 9)
-#define pathval()	(vpath.text + 5)
-#define ps1val()	(vps1.text + 4)
-#define ps2val()	(vps2.text + 4)
-#define optindval()	(voptind.text + 7)
-#ifndef SMALL
-#define histsizeval()	(vhistsize.text + 9)
-#define termval()	(vterm.text + 5)
-#endif
-
-#if ATTY
-#define attyset()	((vatty.flags & VUNSET) == 0)
-#endif
-#define mpathset()	((vmpath.flags & VUNSET) == 0)
-
-static void initvar __P((void));
-static void setvar __P((const char *, const char *, int));
-static void setvareq __P((char *, int));
-struct strlist;
-static void listsetvar __P((struct strlist *));
-static char *lookupvar __P((const char *));
-static char *bltinlookup __P((const char *));
-static char **environment __P((void));
-static void shprocvar __P((void));
-static int showvarscmd __P((int, char **));
-static int exportcmd __P((int, char **));
-static int localcmd __P((int, char **));
-static void mklocal __P((char *));
-static void poplocalvars __P((void));
-static int setvarcmd __P((int, char **));
-static int unsetcmd __P((int, char **));
-static int unsetvar __P((const char *));
-static int varequal __P((const char *, const char *));
-