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      1 /*
      2  * Copyright (C) 2007 Michael Brown <mbrown (at) 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  */
     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