xdr_ypreq_xfr
bool_t xdr_ypreq_xfr(XDR *, struct ypreq_xfr *);
__weak_alias(xdr_ypreq_xfr,_xdr_ypreq_xfr)
rv = clnt_call(ypserv, YPPROC_XFR, xdr_ypreq_xfr, &req,
xdr_argument = (xdrproc_t)xdr_ypreq_xfr;