- Added generic_sum example application to show use of generic message digest layer.
This commit is contained in:
Paul Bakker
parent
20a7808d13
commit
fb6c7e2688
@ -8,7 +8,7 @@ OFLAGS = -O
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LDFLAGS = -L../library -lpolarssl
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APPS = aes/aescrypt2 aes/crypt_and_hash \
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hash/hello \
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hash/hello hash/generic_sum \
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hash/md5sum hash/sha1sum \
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hash/sha2sum pkey/dh_client \
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pkey/dh_genprime pkey/dh_server \
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@ -35,6 +35,10 @@ hash/hello: hash/hello.c ../library/libpolarssl.a
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echo " CC hash/hello.c"
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$(CC) $(CFLAGS) $(OFLAGS) hash/hello.c $(LDFLAGS) -o $@
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hash/generic_sum: hash/generic_sum.c ../library/libpolarssl.a
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echo " CC hash/generic_sum.c"
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$(CC) $(CFLAGS) $(OFLAGS) hash/generic_sum.c $(LDFLAGS) -o $@
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hash/md5sum: hash/md5sum.c ../library/libpolarssl.a
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echo " CC hash/md5sum.c"
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$(CC) $(CFLAGS) $(OFLAGS) hash/md5sum.c $(LDFLAGS) -o $@
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@ -1,6 +1,9 @@
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add_executable(hello hello.c)
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target_link_libraries(hello polarssl)
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add_executable(generic_sum generic_sum.c)
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target_link_libraries(generic_sum polarssl)
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add_executable(md5sum md5sum.c)
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target_link_libraries(md5sum polarssl)
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@ -10,6 +13,6 @@ target_link_libraries(sha1sum polarssl)
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add_executable(sha2sum sha2sum.c)
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target_link_libraries(sha2sum polarssl)
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INSTALL(TARGETS hello md5sum sha1sum sha2sum
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INSTALL(TARGETS hello md5sum sha1sum sha2sum generic_sum
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DESTINATION "bin"
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PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
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206
programs/hash/generic_sum.c
Normal file
206
programs/hash/generic_sum.c
Normal file
@ -0,0 +1,206 @@
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/*
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* generic message digest layer demonstration program
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _CRT_SECURE_NO_DEPRECATE
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#define _CRT_SECURE_NO_DEPRECATE 1
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#endif
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#include <string.h>
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#include <stdio.h>
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#include "polarssl/md.h"
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static int generic_wrapper( const md_info_t *md_info, char *filename, unsigned char *sum )
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{
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int ret = md_file( md_info, filename, sum );
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if( ret == 1 )
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fprintf( stderr, "failed to open: %s\n", filename );
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if( ret == 2 )
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fprintf( stderr, "failed to read: %s\n", filename );
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return( ret );
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}
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static int generic_print( const md_info_t *md_info, char *filename )
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{
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int i;
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unsigned char sum[POLARSSL_MD_MAX_SIZE];
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if( generic_wrapper( md_info, filename, sum ) != 0 )
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return( 1 );
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for( i = 0; i < md_info->size; i++ )
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printf( "%02x", sum[i] );
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printf( " %s\n", filename );
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return( 0 );
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}
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static int generic_check( const md_info_t *md_info, char *filename )
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{
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int i;
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size_t n;
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FILE *f;
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int nb_err1, nb_err2;
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int nb_tot1, nb_tot2;
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unsigned char sum[POLARSSL_MD_MAX_SIZE];
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char buf[POLARSSL_MD_MAX_SIZE * 2 + 1], line[1024];
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if( ( f = fopen( filename, "rb" ) ) == NULL )
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{
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printf( "failed to open: %s\n", filename );
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return( 1 );
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}
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nb_err1 = nb_err2 = 0;
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nb_tot1 = nb_tot2 = 0;
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memset( line, 0, sizeof( line ) );
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n = sizeof( line );
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while( fgets( line, n - 1, f ) != NULL )
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{
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n = strlen( line );
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if( n < (size_t) 2 * md_info->size + 4 )
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{
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printf("No '%s' hash found on line.\n", md_info->name);
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continue;
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}
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if( line[2 * md_info->size] != ' ' || line[2 * md_info->size + 1] != ' ' )
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{
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printf("No '%s' hash found on line.\n", md_info->name);
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continue;
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}
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if( line[n - 1] == '\n' ) { n--; line[n] = '\0'; }
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if( line[n - 1] == '\r' ) { n--; line[n] = '\0'; }
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nb_tot1++;
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if( generic_wrapper( md_info, line + 2 + 2 * md_info->size, sum ) != 0 )
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{
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nb_err1++;
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continue;
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}
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nb_tot2++;
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for( i = 0; i < md_info->size; i++ )
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sprintf( buf + i * 2, "%02x", sum[i] );
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if( memcmp( line, buf, 2 * md_info->size ) != 0 )
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{
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nb_err2++;
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fprintf( stderr, "wrong checksum: %s\n", line + 66 );
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}
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n = sizeof( line );
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}
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if( nb_err1 != 0 )
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{
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printf( "WARNING: %d (out of %d) input files could "
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"not be read\n", nb_err1, nb_tot1 );
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}
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if( nb_err2 != 0 )
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{
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printf( "WARNING: %d (out of %d) computed checksums did "
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"not match\n", nb_err2, nb_tot2 );
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}
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return( nb_err1 != 0 || nb_err2 != 0 );
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}
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int main( int argc, char *argv[] )
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{
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int ret, i;
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const md_info_t *md_info;
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md_context_t md_ctx;
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memset( &md_ctx, 0, sizeof( md_context_t ));
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if( argc == 1 )
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{
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const int *list;
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printf( "print mode: generic_sum <md> <file> <file> ...\n" );
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printf( "check mode: generic_sum <md> -c <checksum file>\n" );
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printf( "\nAvailable message digests:\n" );
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list = md_list();
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while( *list )
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{
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md_info = md_info_from_type( *list );
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printf( " %s\n", md_info->name );
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list++;
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}
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#ifdef WIN32
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printf( "\n Press Enter to exit this program.\n" );
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fflush( stdout ); getchar();
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#endif
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return( 1 );
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}
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/*
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* Read the MD from the command line
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*/
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md_info = md_info_from_string( argv[1] );
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if( md_info == NULL )
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{
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fprintf( stderr, "Message Digest '%s' not found\n", argv[1] );
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return( 1 );
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}
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if( md_init_ctx( &md_ctx, md_info) )
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{
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fprintf( stderr, "Failed to initialize context.\n" );
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return( 1 );
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}
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printf("%08x\n", (unsigned int) md_ctx.md_ctx );
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ret = 0;
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if( argc == 4 && strcmp( "-c", argv[2] ) == 0 )
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{
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ret |= generic_check( md_info, argv[3] );
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goto exit;
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}
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printf("%08x\n", (unsigned int) md_ctx.md_ctx );
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for( i = 2; i < argc; i++ )
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ret |= generic_print( md_info, argv[i] );
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exit:
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printf("%08x\n", (unsigned int) md_ctx.md_ctx );
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md_free_ctx( &md_ctx );
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return( ret );
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}
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