1 /* 2 * Copyright (c) Ian F. Darwin 1986-1995. 3 * Software written by Ian F. Darwin and others; 4 * maintained 1995-present by Christos Zoulas and others. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice immediately at the beginning of the file, without modification, 11 * this list of conditions, and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 /* 29 * Header file for public domain tar (tape archive) program. 30 * 31 * @(#)tar.h 1.20 86/10/29 Public Domain. 32 * 33 * Created 25 August 1985 by John Gilmore, ihnp4!hoptoad!gnu. 34 * 35 * $File: tar.h,v 1.13 2010/11/30 14:58:53 rrt Exp $ # checkin only 36 */ 37 38 /* 39 * Header block on tape. 40 * 41 * I'm going to use traditional DP naming conventions here. 42 * A "block" is a big chunk of stuff that we do I/O on. 43 * A "record" is a piece of info that we care about. 44 * Typically many "record"s fit into a "block". 45 */ 46 #define RECORDSIZE 512 47 #define NAMSIZ 100 48 #define TUNMLEN 32 49 #define TGNMLEN 32 50 51 union record { 52 unsigned char charptr[RECORDSIZE]; 53 struct header { 54 char name[NAMSIZ]; 55 char mode[8]; 56 char uid[8]; 57 char gid[8]; 58 char size[12]; 59 char mtime[12]; 60 char chksum[8]; 61 char linkflag; 62 char linkname[NAMSIZ]; 63 char magic[8]; 64 char uname[TUNMLEN]; 65 char gname[TGNMLEN]; 66 char devmajor[8]; 67 char devminor[8]; 68 } header; 69 }; 70 71 /* The magic field is filled with this if uname and gname are valid. */ 72 #define TMAGIC "ustar" /* 5 chars and a null */ 73 #define GNUTMAGIC "ustar " /* 7 chars and a null */ 74