iPXE
debug_md5.c
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00001 /*
00002  * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License as
00006  * published by the Free Software Foundation; either version 2 of the
00007  * License, or any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00017  * 02110-1301, USA.
00018  *
00019  * You can also choose to distribute this program under the terms of
00020  * the Unmodified Binary Distribution Licence (as given in the file
00021  * COPYING.UBDL), provided that you have satisfied its requirements.
00022  */
00023 
00024 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
00025 
00026 #include <stdio.h>
00027 #include <stdint.h>
00028 #include <ipxe/crypto.h>
00029 #include <ipxe/md5.h>
00030 
00031 /**
00032  * Print an MD5 checksum with specified display address
00033  *
00034  * @v dispaddr          Display address
00035  * @v data              Data to checksum
00036  * @v len               Length of data
00037  */
00038 void dbg_md5_da ( unsigned long dispaddr, const void *data,
00039                   unsigned long len ) {
00040         struct digest_algorithm *digest = &md5_algorithm;
00041         uint8_t digest_ctx[digest->ctxsize];
00042         uint8_t digest_out[digest->digestsize];
00043         unsigned int i;
00044 
00045         printf ( "md5sum ( %#08lx, %#lx ) = ", dispaddr, len );
00046         digest_init ( digest, digest_ctx );
00047         digest_update ( digest, digest_ctx, data, len );
00048         digest_final ( digest, digest_ctx, digest_out );
00049         for ( i = 0 ; i < sizeof ( digest_out ) ; i++ )
00050                 printf ( "%02x", digest_out[i] );
00051         printf ( "\n" );
00052 }