1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Standard Archive Format 25 * USTAR - Uniform Standard Tape ARchive 26 */ 27 28 #ifndef _TAR_H 29 #define _TAR_H 30 31 #define TBLOCK 512 32 #define NAMSIZ 100 33 #define PFXSIZ 155 34 35 #define TMODLEN 8 36 #define TUIDLEN 8 37 #define TGIDLEN 8 38 #define TSIZLEN 12 39 #define TMTMLEN 12 40 #define TCKSLEN 8 41 42 #define TMAGIC "ustar" /* ustar and a null */ 43 #define TMAGLEN 6 44 #define TVERSION "00" /* 00 and no null */ 45 #define TVERSLEN 2 46 #define TUNMLEN 32 47 #define TGNMLEN 32 48 #define TDEVLEN 8 49 50 /* 51 * values used in typeflag field 52 */ 53 54 #define REGTYPE '0' /* regular file */ 55 #define AREGTYPE 0 /* alternate REGTYPE */ 56 #define LNKTYPE '1' /* hard link */ 57 #define SYMTYPE '2' /* soft link */ 58 #define CHRTYPE '3' /* character special */ 59 #define BLKTYPE '4' /* block special */ 60 #define DIRTYPE '5' /* directory */ 61 #define FIFOTYPE '6' /* FIFO special */ 62 #define CONTTYPE '7' /* reserved */ 63 #define SOKTYPE '8' /* socket */ 64 #define EXTTYPE 'x' /* extended header */ 65 #define GLBTYPE 'g' /* global extended header */ 66 #define LLNKTYPE 'K' /* long link path */ 67 #define LREGTYPE 'L' /* long file path */ 68 #define VERTYPE 'V' /* version */ 69 70 /* 71 * bits used in mode field 72 */ 73 74 #define TSUID 04000 /* set uid on exec */ 75 #define TSGID 02000 /* set gid on exec */ 76 #define TSVTX 01000 /* sticky bit -- reserved */ 77 78 /* 79 * file permissions 80 */ 81 82 #define TUREAD 00400 /* read by owner */ 83 #define TUWRITE 00200 /* write by owner */ 84 #define TUEXEC 00100 /* execute by owner */ 85 #define TGREAD 00040 /* read by group */ 86 #define TGWRITE 00020 /* execute by group */ 87 #define TGEXEC 00010 /* write by group */ 88 #define TOREAD 00004 /* read by other */ 89 #define TOWRITE 00002 /* write by other */ 90 #define TOEXEC 00001 /* execute by other */ 91 92 struct header 93 { 94 char name[NAMSIZ]; 95 char mode[TMODLEN]; 96 char uid[TUIDLEN]; 97 char gid[TGIDLEN]; 98 char size[TSIZLEN]; 99 char mtime[TMTMLEN]; 100 char chksum[TCKSLEN]; 101 char typeflag; 102 char linkname[NAMSIZ]; 103 char magic[TMAGLEN]; 104 char version[TVERSLEN]; 105 char uname[TUNMLEN]; 106 char gname[TGNMLEN]; 107 char devmajor[TDEVLEN]; 108 char devminor[TDEVLEN]; 109 char prefix[PFXSIZ]; 110 }; 111 112 union hblock 113 { 114 char dummy[TBLOCK]; 115 struct header dbuf; 116 }; 117 118 #endif 119