static int uta_link2( char* target, nng_socket* nn_sock, nng_dialer* dialer );
static int rt_link2_ep( endpoint_t* ep );
static int uta_epsock_byname( route_table_t* rt, char* ep_name, nng_socket* nn_sock );
static int uta_link2( char* target, nng_socket* nn_sock, nng_dialer* dialer );
static int rt_link2_ep( endpoint_t* ep );
static int uta_epsock_byname( route_table_t* rt, char* ep_name, nng_socket* nn_sock );