Skinny: don't crash when requesting an RTP port while the profile is listening on all ips

And store some more ip infos in the listener struct

src/mod/endpoints/mod_skinny/mod_skinny.c

@@ -1598,9 +1598,14 @@ new_socket:
 
 		switch_mutex_init(&listener->flag_mutex, SWITCH_MUTEX_NESTED, listener->pool);
 
-		switch_socket_addr_get(&listener->sa, SWITCH_TRUE, listener->sock);
-		switch_get_addr(listener->remote_ip, sizeof(listener->remote_ip), listener->sa);
-		listener->remote_port = switch_sockaddr_get_port(listener->sa);
+		switch_socket_addr_get(&listener->remote_sa, SWITCH_TRUE, listener->sock);
+		switch_get_addr(listener->remote_ip, sizeof(listener->remote_ip), listener->remote_sa);
+		listener->remote_port = switch_sockaddr_get_port(listener->remote_sa);
+
+		switch_socket_addr_get(&listener->local_sa, SWITCH_FALSE, listener->sock);
+		switch_get_addr(listener->local_ip, sizeof(listener->local_ip), listener->local_sa);
+		listener->local_port = switch_sockaddr_get_port(listener->local_sa);
+
 		launch_listener_thread(listener);
 
 	}

src/mod/endpoints/mod_skinny/mod_skinny.h

@@ -143,11 +143,14 @@ struct listener {
     switch_socket_t *sock;
     switch_memory_pool_t *pool;
     switch_thread_rwlock_t *rwlock;
-    switch_sockaddr_t *sa;
+    switch_sockaddr_t *remote_sa;
     char remote_ip[50];
+    switch_port_t remote_port;
+    switch_sockaddr_t *local_sa;
+    char local_ip[50];
+    switch_port_t local_port;
     switch_mutex_t *flag_mutex;
     uint32_t flags;
-    switch_port_t remote_port;
     uint32_t id;
     time_t expire_time;
     struct listener *next;

src/mod/endpoints/mod_skinny/skinny_server.c

@@ -1660,12 +1660,12 @@ switch_status_t skinny_handle_open_receive_channel_ack_message(listener_t *liste
 			goto end;
 		}
 
+		tech_pvt->local_sdp_audio_ip = listener->local_ip;
 		/* Request a local port from the core's allocator */
-		if (!(tech_pvt->local_sdp_audio_port = switch_rtp_request_port(listener->profile->ip))) {
+		if (!(tech_pvt->local_sdp_audio_port = switch_rtp_request_port(tech_pvt->local_sdp_audio_ip))) {
 			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_CRIT, "No RTP ports available!\n");
 			return SWITCH_STATUS_FALSE;
 		}
-		tech_pvt->local_sdp_audio_ip = switch_core_strdup(switch_core_session_get_pool(session), listener->profile->ip);
 
 		tech_pvt->remote_sdp_audio_ip = inet_ntoa(request->data.open_receive_channel_ack.ip);
 		tech_pvt->remote_sdp_audio_port = request->data.open_receive_channel_ack.port;