--- main/tcptls.c.2011-02-28	2011-02-28 16:51:37.000000000 -0700
+++ main/tcptls.c	2011-02-28 17:00:50.000000000 -0700
@@ -141,7 +141,10 @@
 	if (!tcptls_session->parent->tls_cfg) {
 		tcptls_session->f = fdopen(tcptls_session->fd, "w+");
 		if (tcptls_session->f) {
-			setvbuf(tcptls_session->f, NULL, _IONBF, 0);
+			if(setvbuf(tcptls_session->f, NULL, _IONBF, 0)) {
+				fclose(tcptls_session->f);
+				tcptls_session->f = NULL;
+			}
 		}
 	}
 #ifdef DO_SSL