source: trunk/minix/commands/pax/cpio.h@ 15

Last change on this file since 15 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 5.4 KB
RevLine 
[9]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 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)cpio.h 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/bin/pax/cpio.h,v 1.7 2004/04/06 20:06:48 markm Exp $
35 */
36
37/*
38 * Defines common to all versions of cpio
39 */
40#define TRAILER "TRAILER!!!" /* name in last archive record */
41
42/*
43 * Header encoding of the different file types
44 */
45#define C_ISDIR 040000 /* Directory */
46#define C_ISFIFO 010000 /* FIFO */
47#define C_ISREG 0100000 /* Regular file */
48#define C_ISBLK 060000 /* Block special file */
49#define C_ISCHR 020000 /* Character special file */
50#define C_ISCTG 0110000 /* Reserved for contiguous files */
51#define C_ISLNK 0120000 /* Reserved for symbolic links */
52#define C_ISOCK 0140000 /* Reserved for sockets */
53#define C_IFMT 0170000 /* type of file */
54
55/*
56 * Data Interchange Format - Extended cpio header format - POSIX 1003.1-1990
57 */
58typedef struct {
59 char c_magic[6]; /* magic cookie */
60 char c_dev[6]; /* device number */
61 char c_ino[6]; /* inode number */
62 char c_mode[6]; /* file type/access */
63 char c_uid[6]; /* owners uid */
64 char c_gid[6]; /* owners gid */
65 char c_nlink[6]; /* # of links at archive creation */
66 char c_rdev[6]; /* block/char major/minor # */
67 char c_mtime[11]; /* modification time */
68 char c_namesize[6]; /* length of pathname */
69 char c_filesize[11]; /* length of file in bytes */
70} HD_CPIO;
71
72#define MAGIC 070707 /* transportable archive id */
73
74#ifdef _PAX_
75#define AMAGIC "070707" /* ascii equivalent string of MAGIC */
76#define CPIO_MASK 0x3ffff /* bits valid in the dev/ino fields */
77 /* used for dev/inode remaps */
78#endif /* _PAX_ */
79
80/*
81 * Binary cpio header structure
82 *
83 * CAUTION! CAUTION! CAUTION!
84 * Each field really represents a 16 bit short (NOT ASCII). Described as
85 * an array of chars in an attempt to improve portability!!
86 */
87typedef struct {
88 u_char h_magic[2];
89 u_char h_dev[2];
90 u_char h_ino[2];
91 u_char h_mode[2];
92 u_char h_uid[2];
93 u_char h_gid[2];
94 u_char h_nlink[2];
95 u_char h_rdev[2];
96 u_char h_mtime_1[2];
97 u_char h_mtime_2[2];
98 u_char h_namesize[2];
99 u_char h_filesize_1[2];
100 u_char h_filesize_2[2];
101} HD_BCPIO;
102
103#ifdef _PAX_
104/*
105 * extraction and creation macros for binary cpio
106 */
107#define SHRT_EXT(ch) ((((unsigned)(ch)[0])<<8) | (((unsigned)(ch)[1])&0xff))
108#define RSHRT_EXT(ch) ((((unsigned)(ch)[1])<<8) | (((unsigned)(ch)[0])&0xff))
109#define CHR_WR_0(val) ((char)(((val) >> 24) & 0xff))
110#define CHR_WR_1(val) ((char)(((val) >> 16) & 0xff))
111#define CHR_WR_2(val) ((char)(((val) >> 8) & 0xff))
112#define CHR_WR_3(val) ((char)((val) & 0xff))
113
114/*
115 * binary cpio masks and pads
116 */
117#define BCPIO_PAD(x) ((2 - ((x) & 1)) & 1) /* pad to next 2 byte word */
118#define BCPIO_MASK 0xffff /* mask for dev/ino fields */
119#endif /* _PAX_ */
120
121/*
122 * System VR4 cpio header structure (with/without file data crc)
123 */
124typedef struct {
125 char c_magic[6]; /* magic cookie */
126 char c_ino[8]; /* inode number */
127 char c_mode[8]; /* file type/access */
128 char c_uid[8]; /* owners uid */
129 char c_gid[8]; /* owners gid */
130 char c_nlink[8]; /* # of links at archive creation */
131 char c_mtime[8]; /* modification time */
132 char c_filesize[8]; /* length of file in bytes */
133 char c_maj[8]; /* block/char major # */
134 char c_min[8]; /* block/char minor # */
135 char c_rmaj[8]; /* special file major # */
136 char c_rmin[8]; /* special file minor # */
137 char c_namesize[8]; /* length of pathname */
138 char c_chksum[8]; /* 0 OR CRC of bytes of FILE data */
139} HD_VCPIO;
140
141#define VMAGIC 070701 /* sVr4 new portable archive id */
142#define VCMAGIC 070702 /* sVr4 new portable archive id CRC */
143#ifdef _PAX_
144#define AVMAGIC "070701" /* ascii string of above */
145#define AVCMAGIC "070702" /* ascii string of above */
146#define VCPIO_PAD(x) ((4 - ((x) & 3)) & 3) /* pad to next 4 byte word */
147#define VCPIO_MASK 0xffffffff /* mask for dev/ino fields */
148#endif /* _PAX_ */
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