YPPROC_ORDER
r = clnt_call(ysd->dom_client, (rpcproc_t)YPPROC_ORDER,
r = clnt_call(client, (unsigned int)YPPROC_ORDER, xdr_ypreq_nokey,
r = clnt_call(client, YPPROC_ORDER, xdr_ypreq_nokey, &yprnk,
case YPPROC_ORDER: