--- main/tcptls.c.2011-02-18	2011-02-18 18:18:38.000000000 -0700
+++ main/tcptls.c	2011-02-20 13:06:04.000000000 -0700
@@ -140,7 +140,9 @@
 	*/
 	if (!tcptls_session->parent->tls_cfg) {
 		tcptls_session->f = fdopen(tcptls_session->fd, "w+");
-		setvbuf(tcptls_session->f, NULL, _IONBF, 0);
+		if (tcptls_session->f) {
+			setvbuf(tcptls_session->f, NULL, _IONBF, 0);
+		}
 	}
 #ifdef DO_SSL
 	else if ( (tcptls_session->ssl = SSL_new(tcptls_session->parent->tls_cfg->ssl_ctx)) ) {