1 /*
2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19 FILE_LICENCE ( GPL2_OR_LATER );
20
21 /** @file
22 *
23 * CPIO archives
24 *
25 */
26
27 #include <stdio.h>
28 #include <string.h>
29 #include <gpxe/cpio.h>
30
31 /**
32 * Set field within a CPIO header
33 *
34 * @v field Field within CPIO header
35 * @v value Value to set
36 */
cpio_set_field(char * field,unsigned long value)37 void cpio_set_field ( char *field, unsigned long value ) {
38 char buf[9];
39
40 snprintf ( buf, sizeof ( buf ), "%08lx", value );
41 memcpy ( field, buf, 8 );
42 }
43