mirror of
https://github.com/yuzu-emu/mbedtls
synced 2024-11-25 04:29:00 +00:00
157 lines
3.6 KiB
C
157 lines
3.6 KiB
C
/*
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* sha2sum demonstration program
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*
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* Copyright (C) 2006-2010, Paul Bakker <polarssl_maintainer at polarssl.org>
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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/sha2.h"
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static int sha2_wrapper( char *filename, unsigned char *sum )
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{
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int ret = sha2_file( filename, sum, 0 );
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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 sha2_print( char *filename )
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{
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int i;
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unsigned char sum[32];
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if( sha2_wrapper( filename, sum ) != 0 )
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return( 1 );
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for( i = 0; i < 32; 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 sha2_check( 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[32];
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char buf[65], 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 < 68 )
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continue;
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if( line[64] != ' ' || line[65] != ' ' )
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continue;
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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( sha2_wrapper( line + 66, 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 < 32; i++ )
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sprintf( buf + i * 2, "%02x", sum[i] );
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if( memcmp( line, buf, 64 ) != 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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if( argc == 1 )
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{
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printf( "print mode: sha2sum <file> <file> ...\n" );
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printf( "check mode: sha2sum -c <checksum file>\n" );
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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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if( argc == 3 && strcmp( "-c", argv[1] ) == 0 )
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return( sha2_check( argv[2] ) );
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ret = 0;
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for( i = 1; i < argc; i++ )
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ret |= sha2_print( argv[i] );
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return( ret );
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}
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