segfault bug fix by Pekka and me in agent_init_contact().

darcs-hash:20060602121702-1b897-ee985c32bb58b832ae33e389ca740d1762d72a19.gz

libsofia-sip-ua-glib/nua-glib/nua_glib.c

@@ -28,6 +28,7 @@
  * @author Kai Vehmanen <kai.vehmanen@nokia.com>
  * @author Rob Taylor <rob.taylor@collabora.co.uk>
  * @author Pekka Pessi <pekka.pessi@nokia.com>
+ * @author Martti Mela <martti.mela@nokia.com>
  */
 
 #include <stddef.h>

libsofia-sip-ua/nta/nta.c

@@ -1740,7 +1740,7 @@ int agent_init_contact(nta_agent_t *self)
 
   if (v2 && 
       strcasecmp(v1->v_host, v2->v_host) == 0 &&
-      strcasecmp(v1->v_port, v2->v_port) == 0) {
+      str0casecmp(v1->v_port, v2->v_port) == 0) {
     char const *p1 = v1->v_protocol, *p2 = v2->v_protocol;
 
     if (strcasecmp(p1, sip_transport_udp))