version_check_feature() added to check for compile-time options at run-time

scripts/data_files/version_features.fmt

@@ -0,0 +1,60 @@
+/*
+ *  Version feature information
+ *
+ *  Copyright (C) 2006-2014, Brainspark B.V.
+ *
+ *  This file is part of PolarSSL (http://www.polarssl.org)
+ *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ *  All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_VERSION_C)
+
+#include "polarssl/version.h"
+
+#include <string.h>
+
+#if defined(_MSC_VER) && !defined  snprintf && !defined(EFIX64) && \
+    !defined(EFI32)
+#define  snprintf  _snprintf
+#endif
+
+const char *features[] = {
+FEATURE_DEFINES
+    NULL
+};
+
+int version_check_feature( const char *feature )
+{
+    const char **idx = features;
+
+    if( feature == NULL )
+        return( -1 );
+
+    while( *idx != NULL )
+    {
+        if( !strcasecmp( *idx, feature ) )
+            return( 0 );
+        idx++;
+    }
+    return( -1 );
+}
+
+#endif /* POLARSSL_VERSION_C */