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Ventoy/wimboot/wimboot-2.7.3/src/cpio.h

79 lines
2.0 KiB
C

#ifndef _CPIO_H
#define _CPIO_H
/*
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* @file
*
* CPIO archives
*
*/
#include <stdint.h>
/** A CPIO archive header
*
* All field are hexadecimal ASCII numbers padded with '0' on the
* left to the full width of the field.
*/
struct cpio_header {
/** The string "070701" or "070702" */
char c_magic[6];
/** File inode number */
char c_ino[8];
/** File mode and permissions */
char c_mode[8];
/** File uid */
char c_uid[8];
/** File gid */
char c_gid[8];
/** Number of links */
char c_nlink[8];
/** Modification time */
char c_mtime[8];
/** Size of data field */
char c_filesize[8];
/** Major part of file device number */
char c_maj[8];
/** Minor part of file device number */
char c_min[8];
/** Major part of device node reference */
char c_rmaj[8];
/** Minor part of device node reference */
char c_rmin[8];
/** Length of filename, including final NUL */
char c_namesize[8];
/** Checksum of data field if c_magic is 070702, othersize zero */
char c_chksum[8];
} __attribute__ (( packed ));
/** CPIO magic */
#define CPIO_MAGIC "070701"
/** CPIO trailer */
#define CPIO_TRAILER "TRAILER!!!"
extern int cpio_extract ( void *data, size_t len,
int ( * file ) ( const char *name, void *data,
size_t len ) );
#endif /* _CPIO_H */