| 1 | /** $MirOS: src/bin/pax/tar.h,v 1.2 2012/02/12 00:27:18 tg Exp $ */
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| 2 | /* $OpenBSD: tar.h,v 1.7 2003/06/02 23:32:09 millert Exp $ */
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| 3 | /* $NetBSD: tar.h,v 1.3 1995/03/21 09:07:51 cgd Exp $ */
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| 4 |
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| 5 | /*-
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| 6 | * Copyright (c) 1992 Keith Muller.
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| 7 | * Copyright (c) 1992, 1993
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| 8 | * The Regents of the University of California. All rights reserved.
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| 9 | *
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| 10 | * This code is derived from software contributed to Berkeley by
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| 11 | * Keith Muller of the University of California, San Diego.
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| 12 | *
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| 13 | * Redistribution and use in source and binary forms, with or without
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| 14 | * modification, are permitted provided that the following conditions
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| 15 | * are met:
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| 16 | * 1. Redistributions of source code must retain the above copyright
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| 17 | * notice, this list of conditions and the following disclaimer.
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| 18 | * 2. Redistributions in binary form must reproduce the above copyright
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| 19 | * notice, this list of conditions and the following disclaimer in the
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| 20 | * documentation and/or other materials provided with the distribution.
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| 21 | * 3. Neither the name of the University nor the names of its contributors
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| 22 | * may be used to endorse or promote products derived from this software
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| 23 | * without specific prior written permission.
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| 24 | *
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| 25 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 35 | * SUCH DAMAGE.
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| 36 | *
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| 37 | * @(#)tar.h 8.2 (Berkeley) 4/18/94
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| 38 | */
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| 39 |
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| 40 | /*
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| 41 | * defines and data structures common to all tar formats
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| 42 | */
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| 43 | #define CHK_LEN 8 /* length of checksum field */
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| 44 | #define TNMSZ 100 /* size of name field */
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| 45 | #ifdef _PAX_
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| 46 | #define NULLCNT 2 /* number of null blocks in trailer */
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| 47 | #define CHK_OFFSET 148 /* start of chksum field */
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| 48 | #define BLNKSUM 256L /* sum of checksum field using ' ' */
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| 49 | #endif /* _PAX_ */
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| 50 |
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| 51 | /*
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| 52 | * Values used in typeflag field in all tar formats
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| 53 | * (only REGTYPE, LNKTYPE and SYMTYPE are used in old bsd tar headers)
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| 54 | */
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| 55 | #define REGTYPE '0' /* Regular File */
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| 56 | #define AREGTYPE '\0' /* Regular File */
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| 57 | #define LNKTYPE '1' /* Link */
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| 58 | #define SYMTYPE '2' /* Symlink */
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| 59 | #define CHRTYPE '3' /* Character Special File */
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| 60 | #define BLKTYPE '4' /* Block Special File */
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| 61 | #define DIRTYPE '5' /* Directory */
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| 62 | #define FIFOTYPE '6' /* FIFO */
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| 63 | #define CONTTYPE '7' /* high perf file */
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| 64 |
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| 65 | /*
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| 66 | * GNU tar compatibility;
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| 67 | */
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| 68 | #define LONGLINKTYPE 'K' /* Long Symlink */
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| 69 | #define LONGNAMETYPE 'L' /* Long File */
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| 70 |
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| 71 | /*
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| 72 | * Mode field encoding of the different file types - values in octal
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| 73 | */
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| 74 | #define TSUID 04000 /* Set UID on execution */
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| 75 | #define TSGID 02000 /* Set GID on execution */
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| 76 | #define TSVTX 01000 /* Reserved */
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| 77 | #define TUREAD 00400 /* Read by owner */
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| 78 | #define TUWRITE 00200 /* Write by owner */
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| 79 | #define TUEXEC 00100 /* Execute/Search by owner */
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| 80 | #define TGREAD 00040 /* Read by group */
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| 81 | #define TGWRITE 00020 /* Write by group */
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| 82 | #define TGEXEC 00010 /* Execute/Search by group */
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| 83 | #define TOREAD 00004 /* Read by other */
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| 84 | #define TOWRITE 00002 /* Write by other */
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| 85 | #define TOEXEC 00001 /* Execute/Search by other */
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| 86 |
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| 87 | #ifdef _PAX_
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| 88 | /*
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| 89 | * Pad with a bit mask, much faster than doing a mod but only works on powers
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| 90 | * of 2. Macro below is for block of 512 bytes.
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| 91 | */
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| 92 | #define TAR_PAD(x) ((512 - ((x) & 511)) & 511)
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| 93 | #endif /* _PAX_ */
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| 94 |
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| 95 | /*
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| 96 | * structure of an old tar header as it appeared in BSD releases
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| 97 | */
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| 98 | typedef struct {
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| 99 | char name[TNMSZ]; /* name of entry */
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| 100 | char mode[8]; /* mode */
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| 101 | char uid[8]; /* uid */
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| 102 | char gid[8]; /* gid */
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| 103 | char size[12]; /* size */
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| 104 | char mtime[12]; /* modification time */
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| 105 | char chksum[CHK_LEN]; /* checksum */
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| 106 | char linkflag; /* norm, hard, or sym. */
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| 107 | char linkname[TNMSZ]; /* linked to name */
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| 108 | } HD_TAR;
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| 109 |
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| 110 | #ifdef _PAX_
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| 111 | /*
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| 112 | * -o options for BSD tar to not write directories to the archive
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| 113 | */
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| 114 | #define TAR_NODIR "nodir"
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| 115 | #define TAR_OPTION "write_opt"
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| 116 |
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| 117 | /*
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| 118 | * default device names
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| 119 | */
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| 120 | #define DEV_0 "/dev/rst0"
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| 121 | #define DEV_1 "/dev/rst1"
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| 122 | #define DEV_4 "/dev/rst4"
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| 123 | #define DEV_5 "/dev/rst5"
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| 124 | #define DEV_7 "/dev/rst7"
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| 125 | #define DEV_8 "/dev/rst8"
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| 126 | #endif /* _PAX_ */
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| 127 |
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| 128 | /*
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| 129 | * Data Interchange Format - Extended tar header format - POSIX 1003.1-1990
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| 130 | */
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| 131 | #define TPFSZ 155
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| 132 | #define TMAGIC "ustar" /* ustar and a null */
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| 133 | #define TMAGLEN 6
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| 134 | #define TVERSION "00" /* 00 and no null */
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| 135 | #define TVERSLEN 2
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| 136 |
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| 137 | typedef struct {
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| 138 | char name[TNMSZ]; /* name of entry */
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| 139 | char mode[8]; /* mode */
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| 140 | char uid[8]; /* uid */
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| 141 | char gid[8]; /* gid */
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| 142 | char size[12]; /* size */
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| 143 | char mtime[12]; /* modification time */
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| 144 | char chksum[CHK_LEN]; /* checksum */
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| 145 | char typeflag; /* type of file. */
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| 146 | char linkname[TNMSZ]; /* linked to name */
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| 147 | char magic[TMAGLEN]; /* magic cookie */
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| 148 | char version[TVERSLEN]; /* version */
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| 149 | char uname[32]; /* ascii owner name */
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| 150 | char gname[32]; /* ascii group name */
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| 151 | char devmajor[8]; /* major device number */
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| 152 | char devminor[8]; /* minor device number */
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| 153 | char prefix[TPFSZ]; /* linked to name */
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| 154 | } HD_USTAR;
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