tar.h revision 225736
1178825Sdfr/*- 2233294Sstas * Copyright (c) 1992 Keith Muller. 3233294Sstas * Copyright (c) 1992, 1993 4233294Sstas * The Regents of the University of California. All rights reserved. 5178825Sdfr * 6233294Sstas * This code is derived from software contributed to Berkeley by 7233294Sstas * Keith Muller of the University of California, San Diego. 8233294Sstas * 9178825Sdfr * Redistribution and use in source and binary forms, with or without 10233294Sstas * modification, are permitted provided that the following conditions 11233294Sstas * are met: 12178825Sdfr * 1. Redistributions of source code must retain the above copyright 13233294Sstas * notice, this list of conditions and the following disclaimer. 14233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 15233294Sstas * notice, this list of conditions and the following disclaimer in the 16178825Sdfr * documentation and/or other materials provided with the distribution. 17178825Sdfr * 4. Neither the name of the University nor the names of its contributors 18178825Sdfr * may be used to endorse or promote products derived from this software 19178825Sdfr * without specific prior written permission. 20178825Sdfr * 21178825Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22178825Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178825Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24178825Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25178825Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26178825Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27178825Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28178825Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29178825Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30178825Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31178825Sdfr * SUCH DAMAGE. 32178825Sdfr * 33178825Sdfr * @(#)tar.h 8.2 (Berkeley) 4/18/94 34178825Sdfr * $FreeBSD: stable/9/bin/pax/tar.h 203613 2010-02-07 17:05:22Z imp $ 35178825Sdfr */ 36178825Sdfr 37178825Sdfr/* 38178825Sdfr * defines and data structures common to all tar formats 39178825Sdfr */ 40178825Sdfr#define CHK_LEN 8 /* length of checksum field */ 41178825Sdfr#define TNMSZ 100 /* size of name field */ 42178825Sdfr#ifdef _PAX_ 43178825Sdfr#define NULLCNT 2 /* number of null blocks in trailer */ 44178825Sdfr#define CHK_OFFSET 148 /* start of checksum field */ 45178825Sdfr#define BLNKSUM 256L /* sum of checksum field using ' ' */ 46178825Sdfr#endif /* _PAX_ */ 47178825Sdfr 48233294Sstas/* 49233294Sstas * Values used in typeflag field in all tar formats 50233294Sstas * (only REGTYPE, LNKTYPE and SYMTYPE are used in old BSD tar headers) 51233294Sstas */ 52233294Sstas#define REGTYPE '0' /* Regular File */ 53233294Sstas#define AREGTYPE '\0' /* Regular File */ 54233294Sstas#define LNKTYPE '1' /* Link */ 55178825Sdfr#define SYMTYPE '2' /* Symlink */ 56#define CHRTYPE '3' /* Character Special File */ 57#define BLKTYPE '4' /* Block Special File */ 58#define DIRTYPE '5' /* Directory */ 59#define FIFOTYPE '6' /* FIFO */ 60#define CONTTYPE '7' /* high perf file */ 61 62/* 63 * Mode field encoding of the different file types - values in octal 64 */ 65#define TSUID 04000 /* Set UID on execution */ 66#define TSGID 02000 /* Set GID on execution */ 67#define TSVTX 01000 /* Reserved */ 68#define TUREAD 00400 /* Read by owner */ 69#define TUWRITE 00200 /* Write by owner */ 70#define TUEXEC 00100 /* Execute/Search by owner */ 71#define TGREAD 00040 /* Read by group */ 72#define TGWRITE 00020 /* Write by group */ 73#define TGEXEC 00010 /* Execute/Search by group */ 74#define TOREAD 00004 /* Read by other */ 75#define TOWRITE 00002 /* Write by other */ 76#define TOEXEC 00001 /* Execute/Search by other */ 77 78#ifdef _PAX_ 79/* 80 * Pad with a bit mask, much faster than doing a mod but only works on powers 81 * of 2. Macro below is for block of 512 bytes. 82 */ 83#define TAR_PAD(x) ((512 - ((x) & 511)) & 511) 84#endif /* _PAX_ */ 85 86/* 87 * structure of an old tar header as it appeared in BSD releases 88 */ 89typedef struct { 90 char name[TNMSZ]; /* name of entry */ 91 char mode[8]; /* mode */ 92 char uid[8]; /* uid */ 93 char gid[8]; /* gid */ 94 char size[12]; /* size */ 95 char mtime[12]; /* modification time */ 96 char chksum[CHK_LEN]; /* checksum */ 97 char linkflag; /* norm, hard, or sym. */ 98 char linkname[TNMSZ]; /* linked to name */ 99} HD_TAR __aligned(1); 100 101#ifdef _PAX_ 102/* 103 * -o options for BSD tar to not write directories to the archive 104 */ 105#define TAR_NODIR "nodir" 106#define TAR_OPTION "write_opt" 107 108/* 109 * default device names 110 */ 111#define DEV_0 "/dev/rmt0" 112#define DEV_1 "/dev/rmt1" 113#define DEV_4 "/dev/rmt4" 114#define DEV_5 "/dev/rmt5" 115#define DEV_7 "/dev/rmt7" 116#define DEV_8 "/dev/rmt8" 117#endif /* _PAX_ */ 118 119/* 120 * Data Interchange Format - Extended tar header format - POSIX 1003.1-1990 121 */ 122#define TPFSZ 155 123#define TMAGIC "ustar" /* ustar and a null */ 124#define TMAGLEN 6 125#define TVERSION "00" /* 00 and no null */ 126#define TVERSLEN 2 127 128typedef struct { 129 char name[TNMSZ]; /* name of entry */ 130 char mode[8]; /* mode */ 131 char uid[8]; /* uid */ 132 char gid[8]; /* gid */ 133 char size[12]; /* size */ 134 char mtime[12]; /* modification time */ 135 char chksum[CHK_LEN]; /* checksum */ 136 char typeflag; /* type of file. */ 137 char linkname[TNMSZ]; /* linked to name */ 138 char magic[TMAGLEN]; /* magic cookie */ 139 char version[TVERSLEN]; /* version */ 140 char uname[32]; /* ascii owner name */ 141 char gname[32]; /* ascii group name */ 142 char devmajor[8]; /* major device number */ 143 char devminor[8]; /* minor device number */ 144 char prefix[TPFSZ]; /* linked to name */ 145} HD_USTAR __aligned(1); 146