--- libaitrpc/src/builtin.c	2011/09/07 00:47:14	1.3.2.10
+++ libaitrpc/src/builtin.c	2011/09/07 00:53:06	1.3.2.11
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: builtin.c,v 1.3.2.10 2011/09/07 00:47:14 misho Exp $
+* $Id: builtin.c,v 1.3.2.11 2011/09/07 00:53:06 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -243,6 +243,11 @@ rpcBLOBServerVars(rpc_func_t *call, int ic, array_t *i
 	pthread_mutex_lock(&srv->srv_blob.mtx);
 	for (i = 0, b = srv->srv_blob.blobs; b; i++, b = b->blob_next);
 	len = i * sizeof str;
+
+	if (!len) {
+		AIT_SET_STR(io_array(vals, 0, ait_val_t*), "");
+		return 0;
+	}
 
 	if (!(val = malloc(len))) {
 		LOGERR;