const digest_type_t *get_digest_type(const char *digest)
{
if (digest == NULL) {
LOGE("get_digest_type(): Digest name is null");
return NULL;
}
#if defined(USE_CRYPTO_OPENSSL)
return EVP_get_digestbyname(digest);
#elif defined(USE_CRYPTO_POLARSSL)
return md_info_from_string(digest);
#endif
}
const md_info_t *
md_kt_get (const char *digest)
{
const md_info_t *md = NULL;
ASSERT (digest);
md = md_info_from_string(digest);
if (!md)
msg (M_FATAL, "Message hash algorithm '%s' not found", digest);
if (md->size > MAX_HMAC_KEY_LENGTH)
msg (M_FATAL, "Message hash algorithm '%s' uses a default hash size (%d bytes) which is larger than " PACKAGE_NAME "'s current maximum hash size (%d bytes)",
digest,
md->size,
MAX_HMAC_KEY_LENGTH);
return md;
}
int main( int argc, char *argv[] )
{
int ret, i;
const md_info_t *md_info;
md_context_t md_ctx;
md_init( &md_ctx );
if( argc == 1 )
{
const int *list;
printf( "print mode: generic_sum <md> <file> <file> ...\n" );
printf( "check mode: generic_sum <md> -c <checksum file>\n" );
printf( "\nAvailable message digests:\n" );
list = md_list();
while( *list )
{
md_info = md_info_from_type( *list );
printf( " %s\n", md_info->name );
list++;
}
#if defined(_WIN32)
printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( 1 );
}
/*
* Read the MD from the command line
*/
md_info = md_info_from_string( argv[1] );
if( md_info == NULL )
{
fprintf( stderr, "Message Digest '%s' not found\n", argv[1] );
return( 1 );
}
if( md_init_ctx( &md_ctx, md_info) )
{
fprintf( stderr, "Failed to initialize context.\n" );
return( 1 );
}
ret = 0;
if( argc == 4 && strcmp( "-c", argv[2] ) == 0 )
{
ret |= generic_check( md_info, argv[3] );
goto exit;
}
for( i = 2; i < argc; i++ )
ret |= generic_print( md_info, argv[i] );
exit:
md_free( &md_ctx );
return( ret );
}
