add sofia profile <profile> gwlist up|down to list up or downed profiles for feeding into mod distributor to exclude dead gateways

src/mod/endpoints/mod_sofia/sofia_glue.c

@@ -4267,6 +4267,28 @@ void sofia_glue_del_every_gateway(sofia_profile_t *profile)
 }
 
 
+void sofia_glue_gateway_list(sofia_profile_t *profile, switch_stream_handle_t *stream, int up)
+{
+	sofia_gateway_t *gp = NULL;
+	char *r = (char *) stream->data;
+
+	switch_mutex_lock(mod_sofia_globals.hash_mutex);
+	for (gp = profile->gateways; gp; gp = gp->next) {
+		int reged = (gp->state == REG_STATE_REGED);
+		
+		if (up ? reged : !reged) {
+			stream->write_function(stream, "%s ", gp->name);
+		}
+	}
+
+	if (r) {
+		end_of(r) = '\0';
+	}
+
+	switch_mutex_unlock(mod_sofia_globals.hash_mutex);
+}
+
+
 void sofia_glue_del_gateway(sofia_gateway_t *gp)
 {
 	if (!gp->deleted) {