--- sm/pres.c.orig	Wed Dec  8 21:59:24 2004
+++ sm/pres.c	Wed Dec  8 22:02:34 2004
@@ -332,6 +332,13 @@
 
 /** outgoing directed presence */
 void pres_deliver(sess_t sess, pkt_t pkt) {
+
+    if(jid_full(pkt->to) == NULL) {
+        log_debug(ZONE, "invalid jid in directed presence packet");
+        pkt_free(pkt);
+        return;
+    }
+
     if(pkt->type == pkt_PRESENCE) {
         /* B7: forward, add to A (unless in T), remove from E */
         log_debug(ZONE, "delivering directed available presence to %s", jid_full(pkt->to));