Logo Search packages:      
Sourcecode: pax version File versions  Download package

cpio.h

/*    $OpenBSD: cpio.h,v 1.2 1996/06/23 14:20:32 deraadt Exp $    */
/*    $NetBSD: cpio.h,v 1.3 1995/03/21 09:07:15 cgd Exp $   */

/*-
 * 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
 */

/*
 * 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_ */

Generated by  Doxygen 1.6.0   Back to index