mirror of
https://github.com/xcat2/xNBA.git
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a323a85d9b
Modified-by: Michael Brown <mcb30@etherboot.org> Signed-off-by: Michael Brown <mcb30@etherboot.org>
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/*
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* Copyright (C) 2009 Daniel Verkamp <daniel@drv.nu>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <gpxe/command.h>
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#include <gpxe/image.h>
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#include <gpxe/crypto.h>
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#include <gpxe/md5.h>
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#include <gpxe/sha1.h>
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/**
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* "digest" command syntax message
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*
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* @v argv Argument list
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*/
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static void digest_syntax ( char **argv ) {
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printf ( "Usage:\n"
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" %s <image name>\n"
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"\n"
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"Calculate the %s of an image\n",
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argv[0], argv[0] );
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}
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/**
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* The "digest" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @v digest Digest algorithm
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* @ret rc Exit code
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*/
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static int digest_exec ( int argc, char **argv,
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struct digest_algorithm *digest ) {
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const char *image_name;
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struct image *image;
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uint8_t digest_ctx[digest->ctxsize];
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uint8_t digest_out[digest->digestsize];
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uint8_t buf[128];
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size_t offset;
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size_t len;
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size_t frag_len;
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int i;
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unsigned j;
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if ( argc < 2 ||
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!strcmp ( argv[1], "--help" ) ||
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!strcmp ( argv[1], "-h" ) ) {
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digest_syntax ( argv );
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return 1;
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}
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for ( i = 1 ; i < argc ; i++ ) {
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image_name = argv[i];
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/* find image */
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image = find_image ( image_name );
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if ( ! image ) {
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printf ( "No such image: %s\n", image_name );
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continue;
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}
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offset = 0;
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len = image->len;
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/* calculate digest */
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digest_init ( digest, digest_ctx );
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while ( len ) {
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frag_len = len;
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if ( frag_len > sizeof ( buf ) )
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frag_len = sizeof ( buf );
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copy_from_user ( buf, image->data, offset, frag_len );
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digest_update ( digest, digest_ctx, buf, frag_len );
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len -= frag_len;
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offset += frag_len;
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}
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digest_final ( digest, digest_ctx, digest_out );
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for ( j = 0 ; j < sizeof ( digest_out ) ; j++ )
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printf ( "%02x", digest_out[j] );
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printf ( " %s\n", image->name );
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}
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return 0;
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}
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static int md5sum_exec ( int argc, char **argv ) {
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return digest_exec ( argc, argv, &md5_algorithm );
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}
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static int sha1sum_exec ( int argc, char **argv ) {
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return digest_exec ( argc, argv, &sha1_algorithm );
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}
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struct command md5sum_command __command = {
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.name = "md5sum",
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.exec = md5sum_exec,
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};
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struct command sha1sum_command __command = {
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.name = "sha1sum",
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.exec = sha1sum_exec,
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};
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