1 /* $NetBSD: cpio.h,v 1.6 2003/10/13 07:41:22 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 1992 Keith Muller. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Keith Muller of the University of California, San Diego. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)cpio.h 8.1 (Berkeley) 5/31/93 36 */ 37 38 /* 39 * Defines common to all versions of cpio 40 */ 41 #define TRAILER "TRAILER!!!" /* name in last archive record */ 42 43 /* 44 * Header encoding of the different file types 45 */ 46 #define C_ISDIR 040000 /* Directory */ 47 #define C_ISFIFO 010000 /* FIFO */ 48 #define C_ISREG 0100000 /* Regular file */ 49 #define C_ISBLK 060000 /* Block special file */ 50 #define C_ISCHR 020000 /* Character special file */ 51 #define C_ISCTG 0110000 /* Reserved for contiguous files */ 52 #define C_ISLNK 0120000 /* Reserved for symbolic links */ 53 #define C_ISOCK 0140000 /* Reserved for sockets */ 54 #define C_IFMT 0170000 /* type of file */ 55 56 /* 57 * Data Interchange Format - Extended cpio header format - POSIX 1003.1-1990 58 */ 59 typedef struct { 60 char c_magic[6]; /* magic cookie */ 61 char c_dev[6]; /* device number */ 62 char c_ino[6]; /* inode number */ 63 char c_mode[6]; /* file type/access */ 64 char c_uid[6]; /* owners uid */ 65 char c_gid[6]; /* owners gid */ 66 char c_nlink[6]; /* # of links at archive creation */ 67 char c_rdev[6]; /* block/char major/minor # */ 68 char c_mtime[11]; /* modification time */ 69 char c_namesize[6]; /* length of pathname */ 70 char c_filesize[11]; /* length of file in bytes */ 71 } HD_CPIO; 72 73 #define MAGIC 070707 /* transportable archive id */ 74 75 #ifdef _PAX_ 76 #define AMAGIC "070707" /* ascii equivalent string of MAGIC */ 77 #define CPIO_MASK 0x3ffff /* bits valid in the dev/ino fields */ 78 /* used for dev/inode remaps */ 79 #endif /* _PAX_ */ 80 81 /* 82 * Binary cpio header structure 83 * 84 * CAUTION! CAUTION! CAUTION! 85 * Each field really represents a 16 bit short (NOT ASCII). Described as 86 * an array of chars in an attempt to improve portability!! 87 */ 88 typedef struct { 89 u_char h_magic[2]; 90 u_char h_dev[2]; 91 u_char h_ino[2]; 92 u_char h_mode[2]; 93 u_char h_uid[2]; 94 u_char h_gid[2]; 95 u_char h_nlink[2]; 96 u_char h_rdev[2]; 97 u_char h_mtime_1[2]; 98 u_char h_mtime_2[2]; 99 u_char h_namesize[2]; 100 u_char h_filesize_1[2]; 101 u_char h_filesize_2[2]; 102 } HD_BCPIO; 103 104 #ifdef _PAX_ 105 /* 106 * extraction and creation macros for binary cpio 107 */ 108 #define SHRT_EXT(ch) ((((unsigned)(ch)[0])<<8) | (((unsigned)(ch)[1])&0xff)) 109 #define RSHRT_EXT(ch) ((((unsigned)(ch)[1])<<8) | (((unsigned)(ch)[0])&0xff)) 110 #define CHR_WR_0(val) ((char)(((val) >> 24) & 0xff)) 111 #define CHR_WR_1(val) ((char)(((val) >> 16) & 0xff)) 112 #define CHR_WR_2(val) ((char)(((val) >> 8) & 0xff)) 113 #define CHR_WR_3(val) ((char)((val) & 0xff)) 114 115 /* 116 * binary cpio masks and pads 117 */ 118 #define BCPIO_PAD(x) ((2 - ((x) & 1)) & 1) /* pad to next 2 byte word */ 119 #define BCPIO_MASK 0xffff /* mask for dev/ino fields */ 120 #endif /* _PAX_ */ 121 122 /* 123 * System VR4 cpio header structure (with/without file data crc) 124 */ 125 typedef struct { 126 char c_magic[6]; /* magic cookie */ 127 char c_ino[8]; /* inode number */ 128 char c_mode[8]; /* file type/access */ 129 char c_uid[8]; /* owners uid */ 130 char c_gid[8]; /* owners gid */ 131 char c_nlink[8]; /* # of links at archive creation */ 132 char c_mtime[8]; /* modification time */ 133 char c_filesize[8]; /* length of file in bytes */ 134 char c_maj[8]; /* block/char major # */ 135 char c_min[8]; /* block/char minor # */ 136 char c_rmaj[8]; /* special file major # */ 137 char c_rmin[8]; /* special file minor # */ 138 char c_namesize[8]; /* length of pathname */ 139 char c_chksum[8]; /* 0 OR CRC of bytes of FILE data */ 140 } HD_VCPIO; 141 142 #define VMAGIC 070701 /* sVr4 new portable archive id */ 143 #define VCMAGIC 070702 /* sVr4 new portable archive id CRC */ 144 #ifdef _PAX_ 145 #define AVMAGIC "070701" /* ascii string of above */ 146 #define AVCMAGIC "070702" /* ascii string of above */ 147 #define VCPIO_PAD(x) ((4 - ((x) & 3)) & 3) /* pad to next 4 byte word */ 148 #define VCPIO_MASK 0xffffffff /* mask for dev/ino fields */ 149 #endif /* _PAX_ */ 150