cpio.h revision 1.2
1/*- 2 * Copyright (c) 1992 Keith Muller. 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Keith Muller of the University of California, San Diego. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: @(#)cpio.h 8.1 (Berkeley) 5/31/93 38 * $Id: cpio.h,v 1.2 1994/06/13 16:33:49 jtc Exp $ 39 */ 40 41/* 42 * Defines common to all versions of cpio 43 */ 44#define TRAILER "TRAILER!!!" /* name in last archive record */ 45 46/* 47 * Header encoding of the different file types 48 */ 49#define C_ISDIR 040000 /* Directory */ 50#define C_ISFIFO 010000 /* FIFO */ 51#define C_ISREG 0100000 /* Regular file */ 52#define C_ISBLK 060000 /* Block special file */ 53#define C_ISCHR 020000 /* Character special file */ 54#define C_ISCTG 0110000 /* Reserved for contiguous files */ 55#define C_ISLNK 0120000 /* Reserved for symbolic links */ 56#define C_ISOCK 0140000 /* Reserved for sockets */ 57#define C_IFMT 0170000 /* type of file */ 58 59/* 60 * Data Interchange Format - Extended cpio header format - POSIX 1003.1-1990 61 */ 62typedef struct { 63 char c_magic[6]; /* magic cookie */ 64 char c_dev[6]; /* device number */ 65 char c_ino[6]; /* inode number */ 66 char c_mode[6]; /* file type/access */ 67 char c_uid[6]; /* owners uid */ 68 char c_gid[6]; /* owners gid */ 69 char c_nlink[6]; /* # of links at archive creation */ 70 char c_rdev[6]; /* block/char major/minor # */ 71 char c_mtime[11]; /* modification time */ 72 char c_namesize[6]; /* length of pathname */ 73 char c_filesize[11]; /* length of file in bytes */ 74} HD_CPIO; 75 76#define MAGIC 070707 /* transportable archive id */ 77 78#ifdef _PAX_ 79#define AMAGIC "070707" /* ascii equivalent string of MAGIC */ 80#define CPIO_MASK 0x3ffff /* bits valid in the dev/ino fields */ 81 /* used for dev/inode remaps */ 82#endif /* _PAX_ */ 83 84/* 85 * Binary cpio header structure 86 * 87 * CAUTION! CAUTION! CAUTION! 88 * Each field really represents a 16 bit short (NOT ASCII). Described as 89 * an array of chars in an attempt to improve portability!! 90 */ 91typedef struct { 92 u_char h_magic[2]; 93 u_char h_dev[2]; 94 u_char h_ino[2]; 95 u_char h_mode[2]; 96 u_char h_uid[2]; 97 u_char h_gid[2]; 98 u_char h_nlink[2]; 99 u_char h_rdev[2]; 100 u_char h_mtime_1[2]; 101 u_char h_mtime_2[2]; 102 u_char h_namesize[2]; 103 u_char h_filesize_1[2]; 104 u_char h_filesize_2[2]; 105} HD_BCPIO; 106 107#ifdef _PAX_ 108/* 109 * extraction and creation macros for binary cpio 110 */ 111#define SHRT_EXT(ch) ((((unsigned)(ch)[0])<<8) | (((unsigned)(ch)[1])&0xff)) 112#define RSHRT_EXT(ch) ((((unsigned)(ch)[1])<<8) | (((unsigned)(ch)[0])&0xff)) 113#define CHR_WR_0(val) ((char)(((val) >> 24) & 0xff)) 114#define CHR_WR_1(val) ((char)(((val) >> 16) & 0xff)) 115#define CHR_WR_2(val) ((char)(((val) >> 8) & 0xff)) 116#define CHR_WR_3(val) ((char)((val) & 0xff)) 117 118/* 119 * binary cpio masks and pads 120 */ 121#define BCPIO_PAD(x) ((2 - ((x) & 1)) & 1) /* pad to next 2 byte word */ 122#define BCPIO_MASK 0xffff /* mask for dev/ino fields */ 123#endif /* _PAX_ */ 124 125/* 126 * System VR4 cpio header structure (with/without file data crc) 127 */ 128typedef struct { 129 char c_magic[6]; /* magic cookie */ 130 char c_ino[8]; /* inode number */ 131 char c_mode[8]; /* file type/access */ 132 char c_uid[8]; /* owners uid */ 133 char c_gid[8]; /* owners gid */ 134 char c_nlink[8]; /* # of links at archive creation */ 135 char c_mtime[8]; /* modification time */ 136 char c_filesize[8]; /* length of file in bytes */ 137 char c_maj[8]; /* block/char major # */ 138 char c_min[8]; /* block/char minor # */ 139 char c_rmaj[8]; /* special file major # */ 140 char c_rmin[8]; /* special file minor # */ 141 char c_namesize[8]; /* length of pathname */ 142 char c_chksum[8]; /* 0 OR CRC of bytes of FILE data */ 143} HD_VCPIO; 144 145#define VMAGIC 070701 /* sVr4 new portable archive id */ 146#define VCMAGIC 070702 /* sVr4 new portable archive id CRC */ 147#ifdef _PAX_ 148#define AVMAGIC "070701" /* ascii string of above */ 149#define AVCMAGIC "070702" /* ascii string of above */ 150#define VCPIO_PAD(x) ((4 - ((x) & 3)) & 3) /* pad to next 4 byte word */ 151#define VCPIO_MASK 0xffffffff /* mask for dev/ino fields */ 152#endif /* _PAX_ */ 153