text: /*	$NetBSD: cpio.h,v 1.3 2003/12/20 04:45:04 grant 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. 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_ */
  