*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
* data is a (uint32_t *), containing the port returned.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
* data is a (uint32_t *), containing the port returned.