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+/* $OpenBSD: tar.h,v 1.9 2014/01/08 06:43:34 deraadt Exp $ */
+/* $NetBSD: tar.h,v 1.3 1995/03/21 09:07:51 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1992 Keith Muller.
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Keith Muller of the University of California, San Diego.
+ *
+ * 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. 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.
+ *
+ * @(#)tar.h 8.2 (Berkeley) 4/18/94
+ */
+
+/*
+ * defines and data structures common to all tar formats
+ */
+#define CHK_LEN 8 /* length of checksum field */
+#define TNMSZ 100 /* size of name field */
+#ifdef _PAX_
+#define NULLCNT 2 /* number of null blocks in trailer */
+#define CHK_OFFSET 148 /* start of chksum field */
+#define BLNKSUM 256L /* sum of checksum field using ' ' */
+#endif /* _PAX_ */
+
+/*
+ * Values used in typeflag field in all tar formats
+ * (only REGTYPE, LNKTYPE and SYMTYPE are used in old bsd tar headers)
+ */
+#define REGTYPE '0' /* Regular File */
+#define AREGTYPE '\0' /* Regular File */
+#define LNKTYPE '1' /* Link */
+#define SYMTYPE '2' /* Symlink */
+#define CHRTYPE '3' /* Character Special File */
+#define BLKTYPE '4' /* Block Special File */
+#define DIRTYPE '5' /* Directory */
+#define FIFOTYPE '6' /* FIFO */
+#define CONTTYPE '7' /* high perf file */
+
+/*
+ * Extended header - POSIX.1-2001
+ */
+#define XHDRTYPE 'x' /* Extended header */
+#define GHDRTYPE 'g' /* Global header*/
+
+/*
+ * GNU tar compatibility;
+ */
+#define LONGLINKTYPE 'K' /* Long Symlink */
+#define LONGNAMETYPE 'L' /* Long File */
+
+/*
+ * Mode field encoding of the different file types - values in octal
+ */
+#define TSUID 04000 /* Set UID on execution */
+#define TSGID 02000 /* Set GID on execution */
+#define TSVTX 01000 /* Reserved */
+#define TUREAD 00400 /* Read by owner */
+#define TUWRITE 00200 /* Write by owner */
+#define TUEXEC 00100 /* Execute/Search by owner */
+#define TGREAD 00040 /* Read by group */
+#define TGWRITE 00020 /* Write by group */
+#define TGEXEC 00010 /* Execute/Search by group */
+#define TOREAD 00004 /* Read by other */
+#define TOWRITE 00002 /* Write by other */
+#define TOEXEC 00001 /* Execute/Search by other */
+
+#ifdef _PAX_
+/*
+ * Pad with a bit mask, much faster than doing a mod but only works on powers
+ * of 2. Macro below is for block of 512 bytes.
+ */
+#define TAR_PAD(x) ((512 - ((x) & 511)) & 511)
+#endif /* _PAX_ */
+
+/*
+ * structure of an old tar header as it appeared in BSD releases
+ */
+typedef struct {
+ char name[TNMSZ]; /* name of entry */
+ char mode[8]; /* mode */
+ char uid[8]; /* uid */
+ char gid[8]; /* gid */
+ char size[12]; /* size */
+ char mtime[12]; /* modification time */
+ char chksum[CHK_LEN]; /* checksum */
+ char linkflag; /* norm, hard, or sym. */
+ char linkname[TNMSZ]; /* linked to name */
+} HD_TAR;
+
+#ifdef _PAX_
+/*
+ * -o options for BSD tar to not write directories to the archive
+ */
+#define TAR_NODIR "nodir"
+#define TAR_OPTION "write_opt"
+
+/*
+ * default device names
+ */
+#define DEV_0 "/dev/rst0"
+#define DEV_1 "/dev/rst1"
+#define DEV_4 "/dev/rst4"
+#define DEV_5 "/dev/rst5"
+#define DEV_7 "/dev/rst7"
+#define DEV_8 "/dev/rst8"
+#endif /* _PAX_ */
+
+/*
+ * Data Interchange Format - Extended tar header format - POSIX 1003.1-1990
+ */
+#define TPFSZ 155
+#define TMAGIC "ustar" /* ustar and a null */
+#define TMAGLEN 6
+#define TVERSION "00" /* 00 and no null */
+#define TVERSLEN 2
+
+typedef struct {
+ char name[TNMSZ]; /* name of entry */
+ char mode[8]; /* mode */
+ char uid[8]; /* uid */
+ char gid[8]; /* gid */
+ char size[12]; /* size */
+ char mtime[12]; /* modification time */
+ char chksum[CHK_LEN]; /* checksum */
+ char typeflag; /* type of file. */
+ char linkname[TNMSZ]; /* linked to name */
+ char magic[TMAGLEN]; /* magic cookie */
+ char version[TVERSLEN]; /* version */
+ char uname[32]; /* ascii owner name */
+ char gname[32]; /* ascii group name */
+ char devmajor[8]; /* major device number */
+ char devminor[8]; /* minor device number */
+ char prefix[TPFSZ]; /* linked to name */
+} HD_USTAR;