xdr_array
extern bool_t xdr_array(XDR *, char **, u_int *, u_int, u_int, xdrproc_t);
&& xdr_array(xdrs, (char **) paup_gids,
if (!xdr_array(xdrs, (char **) pgids_val, (u_int *) &objp->gids.gids_len, MAXGIDS,