debug: log etcpmon socket_list NAT values in send_socket_list

src/control_server.c

@@ -1000,7 +1000,10 @@ static void send_socket_list(struct control_server* server, struct control_clien
             inet_ntop(AF_INET6, &sin6->sin6_addr, info[i].nat_ip, sizeof(info[i].nat_ip));
             info[i].nat_port = ntohs(sin6->sin6_port);
         }
-        
+        DEBUG_INFO(DEBUG_CATEGORY_NAT, "socket_list to gui: sock=%s config=%d nat_type=%d nat_ip=%s nat_port=%u",
+                   sock->name, sock->type, sock->nat_type,
+                   info[i].nat_ip[0] ? info[i].nat_ip : "none", info[i].nat_port);
+
         sock = sock->next;
     }