clnt_control
clnt_control(ypbinding.dom_client, CLSET_CONNECTED, &connected);
clnt_control(ypbinding->dom_client, CLSET_CONNECTED, &connected);
clnt_control(client, CLSET_TIMEOUT, (char *)(void *)&retry_time);
clnt_control(cli, CLGET_TIMEOUT, &tim);
clnt_control(cli, CLSET_TIMEOUT, &tim);
clnt_control(cli, CLGET_TIMEOUT, &tim);