diff --git a/common/rdr/TLSException.cxx b/common/rdr/TLSException.cxx
new file mode 100644
index 0000000..3d39d79
--- /dev/null
+++ b/common/rdr/TLSException.cxx
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2004 Red Hat Inc.
+ * Copyright (C) 2010 TigerVNC Team
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <rdr/TLSException.h>
+
+#include <string.h>
+#include <stdio.h>
+#ifdef HAVE_GNUTLS
+#include <gnutls/gnutls.h>
+#endif
+
+using namespace rdr;
+
+#ifdef HAVE_GNUTLS
+TLSException::TLSException(const char* s, int err_)
+  : Exception(s), err(err_)
+{
+  strncat(str_, ": ", len-1-strlen(str_));
+  strncat(str_, gnutls_strerror(err), len-1-strlen(str_));
+  strncat(str_, " (", len-1-strlen(str_));
+  char buf[20];
+  sprintf(buf,"%d",err);
+  strncat(str_, buf, len-1-strlen(str_));
+  strncat(str_, ")", len-1-strlen(str_));
+}
+#endif /* HAVE_GNUTLS */
+