freebsd-dev/bin/pax/cpio.h
David Greenman 89730b290a Added $Id$
1994-09-24 02:59:15 +00:00

153 lines
5.6 KiB
C

/*-
* Copyright (c) 1992 Keith Muller.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Keith Muller of the University of California, San Diego.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)cpio.h 8.1 (Berkeley) 5/31/93
* $Id$
*/
/*
* Defines common to all versions of cpio
*/
#define TRAILER "TRAILER!!!" /* name in last archive record */
/*
* Header encoding of the different file types
*/
#define C_ISDIR 040000 /* Directory */
#define C_ISFIFO 010000 /* FIFO */
#define C_ISREG 0100000 /* Regular file */
#define C_ISBLK 060000 /* Block special file */
#define C_ISCHR 020000 /* Character special file */
#define C_ISCTG 0110000 /* Reserved for contiguous files */
#define C_ISLNK 0120000 /* Reserved for symbolic links */
#define C_ISOCK 0140000 /* Reserved for sockets */
#define C_IFMT 0170000 /* type of file */
/*
* Data Interchange Format - Extended cpio header format - POSIX 1003.1-1990
*/
typedef struct {
char c_magic[6]; /* magic cookie */
char c_dev[6]; /* device number */
char c_ino[6]; /* inode number */
char c_mode[6]; /* file type/access */
char c_uid[6]; /* owners uid */
char c_gid[6]; /* owners gid */
char c_nlink[6]; /* # of links at archive creation */
char c_rdev[6]; /* block/char major/minor # */
char c_mtime[11]; /* modification time */
char c_namesize[6]; /* length of pathname */
char c_filesize[11]; /* length of file in bytes */
} HD_CPIO;
#define MAGIC 070707 /* transportable archive id */
#ifdef _PAX_
#define AMAGIC "070707" /* ascii equivalent string of MAGIC */
#define CPIO_MASK 0x3ffff /* bits valid in the dev/ino fields */
/* used for dev/inode remaps */
#endif /* _PAX_ */
/*
* Binary cpio header structure
*
* CAUTION! CAUTION! CAUTION!
* Each field really represents a 16 bit short (NOT ASCII). Described as
* an array of chars in an attempt to improve portability!!
*/
typedef struct {
u_char h_magic[2];
u_char h_dev[2];
u_char h_ino[2];
u_char h_mode[2];
u_char h_uid[2];
u_char h_gid[2];
u_char h_nlink[2];
u_char h_rdev[2];
u_char h_mtime_1[2];
u_char h_mtime_2[2];
u_char h_namesize[2];
u_char h_filesize_1[2];
u_char h_filesize_2[2];
} HD_BCPIO;
#ifdef _PAX_
/*
* extraction and creation macros for binary cpio
*/
#define SHRT_EXT(ch) ((((unsigned)(ch)[0])<<8) | (((unsigned)(ch)[1])&0xff))
#define RSHRT_EXT(ch) ((((unsigned)(ch)[1])<<8) | (((unsigned)(ch)[0])&0xff))
#define CHR_WR_0(val) ((char)(((val) >> 24) & 0xff))
#define CHR_WR_1(val) ((char)(((val) >> 16) & 0xff))
#define CHR_WR_2(val) ((char)(((val) >> 8) & 0xff))
#define CHR_WR_3(val) ((char)((val) & 0xff))
/*
* binary cpio masks and pads
*/
#define BCPIO_PAD(x) ((2 - ((x) & 1)) & 1) /* pad to next 2 byte word */
#define BCPIO_MASK 0xffff /* mask for dev/ino fields */
#endif /* _PAX_ */
/*
* System VR4 cpio header structure (with/without file data crc)
*/
typedef struct {
char c_magic[6]; /* magic cookie */
char c_ino[8]; /* inode number */
char c_mode[8]; /* file type/access */
char c_uid[8]; /* owners uid */
char c_gid[8]; /* owners gid */
char c_nlink[8]; /* # of links at archive creation */
char c_mtime[8]; /* modification time */
char c_filesize[8]; /* length of file in bytes */
char c_maj[8]; /* block/char major # */
char c_min[8]; /* block/char minor # */
char c_rmaj[8]; /* special file major # */
char c_rmin[8]; /* special file minor # */
char c_namesize[8]; /* length of pathname */
char c_chksum[8]; /* 0 OR CRC of bytes of FILE data */
} HD_VCPIO;
#define VMAGIC 070701 /* sVr4 new portable archive id */
#define VCMAGIC 070702 /* sVr4 new portable archive id CRC */
#ifdef _PAX_
#define AVMAGIC "070701" /* ascii string of above */
#define AVCMAGIC "070702" /* ascii string of above */
#define VCPIO_PAD(x) ((4 - ((x) & 3)) & 3) /* pad to next 4 byte word */
#define VCPIO_MASK 0xffffffff /* mask for dev/ino fields */
#endif /* _PAX_ */