Programming

#ifdef TEST

#include <stdlib.h>
#include <stdio.h>

/*
 * those are the standard RFC 1321 test vectors
 */

static char *msg[] = 
{
    "",
    "a",
    "abc",
    "message digest",
    "abcdefghijklmnopqrstuvwxyz",
    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
    "12345678901234567890123456789012345678901234567890123456789012" \
        "345678901234567890"
};

static char *val[] =
{
    "d41d8cd98f00b204e9800998ecf8427e",
    "0cc175b9c0f1b6a831c399e269772661",
    "900150983cd24fb0d6963f7d28e17f72",
    "f96b697d7cb7938d525a2f31aaf161d0",
    "c3fcd3d76192e4007dfb496cca67e13b",
    "d174ab98d277d9f5a5611c2c9f419d9f",
    "57edf4a22be3c955ac49da2e2107b67a"
};

int main( int argc, char *argv[] )
{
    FILE *f;
    int i, j;
    char output[33];
    md5_context ctx;
    unsigned char buf[1000];
    unsigned char md5sum[16];

    if( argc < 2 )
    {
        printf( "\n MD5 Validation Tests:\n\n" );

        for( i = 0; i < 7; i++ )
        {
            printf( " Test %d ", i + 1 );

            md5_starts( &ctx );
            md5_update( &ctx, (uint8 *) msg[i], strlen( msg[i] ) );
            md5_finish( &ctx, md5sum );

            for( j = 0; j < 16; j++ )
            {
                sprintf( output + j * 2, "%02x", md5sum[j] );
            }

            if( memcmp( output, val[i], 32 ) )
            {
                printf( "failed!\n" );
                return( 1 );
            }

            printf( "passed.\n" );
        }

        printf( "\n" );
    }
    else
    {
        if( ! ( f = fopen( argv[1], "rb" ) ) )
        {
            perror( "fopen" );
            return( 1 );
        }

        md5_starts( &ctx );

        while( ( i = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
        {
            md5_update( &ctx, buf, i );
        }

        md5_finish( &ctx, md5sum );

        for( j = 0; j < 16; j++ )
        {
            printf( "%02x", md5sum[j] );
        }

        printf( "  %s\n", argv[1] );
    }

    return( 0 );
}

#endif

root@voiptest2:~# echo 'a' | md5sum
60b725f10c9c85c70d97880dfe8191b3  -
root@voiptest2:~# echo 'a' | hexdump -C
00000000  61 0a                                             |a.|
00000002
root@voiptest2:~# echo -n 'a' | md5sum
0cc175b9c0f1b6a831c399e269772661  -