2 * Copyright (c) 1992 Keith Muller.
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
7 * Keith Muller of the University of California, San Diego.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * @(#)tar.h 8.2 (Berkeley) 4/18/94
42 * defines and data structures common to all tar formats
44 #define CHK_LEN 8 /* length of checksum field */
45 #define TNMSZ 100 /* size of name field */
47 #define NULLCNT 2 /* number of null blocks in trailer */
48 #define CHK_OFFSET 148 /* start of checksum field */
49 #define BLNKSUM 256L /* sum of checksum field using ' ' */
53 * Values used in typeflag field in all tar formats
54 * (only REGTYPE, LNKTYPE and SYMTYPE are used in old BSD tar headers)
56 #define REGTYPE '0' /* Regular File */
57 #define AREGTYPE '\0' /* Regular File */
58 #define LNKTYPE '1' /* Link */
59 #define SYMTYPE '2' /* Symlink */
60 #define CHRTYPE '3' /* Character Special File */
61 #define BLKTYPE '4' /* Block Special File */
62 #define DIRTYPE '5' /* Directory */
63 #define FIFOTYPE '6' /* FIFO */
64 #define CONTTYPE '7' /* high perf file */
67 * Mode field encoding of the different file types - values in octal
69 #define TSUID 04000 /* Set UID on execution */
70 #define TSGID 02000 /* Set GID on execution */
71 #define TSVTX 01000 /* Reserved */
72 #define TUREAD 00400 /* Read by owner */
73 #define TUWRITE 00200 /* Write by owner */
74 #define TUEXEC 00100 /* Execute/Search by owner */
75 #define TGREAD 00040 /* Read by group */
76 #define TGWRITE 00020 /* Write by group */
77 #define TGEXEC 00010 /* Execute/Search by group */
78 #define TOREAD 00004 /* Read by other */
79 #define TOWRITE 00002 /* Write by other */
80 #define TOEXEC 00001 /* Execute/Search by other */
84 * Pad with a bit mask, much faster than doing a mod but only works on powers
85 * of 2. Macro below is for block of 512 bytes.
87 #define TAR_PAD(x) ((512 - ((x) & 511)) & 511)
91 * structure of an old tar header as it appeared in BSD releases
94 char name[TNMSZ]; /* name of entry */
95 char mode[8]; /* mode */
96 char uid[8]; /* uid */
97 char gid[8]; /* gid */
98 char size[12]; /* size */
99 char mtime[12]; /* modification time */
100 char chksum[CHK_LEN]; /* checksum */
101 char linkflag; /* norm, hard, or sym. */
102 char linkname[TNMSZ]; /* linked to name */
107 * -o options for BSD tar to not write directories to the archive
109 #define TAR_NODIR "nodir"
110 #define TAR_OPTION "write_opt"
113 * default device names
115 #define DEV_0 "/dev/rmt0"
116 #define DEV_1 "/dev/rmt1"
117 #define DEV_4 "/dev/rmt4"
118 #define DEV_5 "/dev/rmt5"
119 #define DEV_7 "/dev/rmt7"
120 #define DEV_8 "/dev/rmt8"
124 * Data Interchange Format - Extended tar header format - POSIX 1003.1-1990
127 #define TMAGIC "ustar" /* ustar and a null */
129 #define TVERSION "00" /* 00 and no null */
133 char name[TNMSZ]; /* name of entry */
134 char mode[8]; /* mode */
135 char uid[8]; /* uid */
136 char gid[8]; /* gid */
137 char size[12]; /* size */
138 char mtime[12]; /* modification time */
139 char chksum[CHK_LEN]; /* checksum */
140 char typeflag; /* type of file. */
141 char linkname[TNMSZ]; /* linked to name */
142 char magic[TMAGLEN]; /* magic cookie */
143 char version[TVERSLEN]; /* version */
144 char uname[32]; /* ascii owner name */
145 char gname[32]; /* ascii group name */
146 char devmajor[8]; /* major device number */
147 char devminor[8]; /* minor device number */
148 char prefix[TPFSZ]; /* linked to name */