wa_begoff
wa.wa_begoff = offset;
wa->wa_begoff = IXDR_GET_U_INT32(ptr);
xdr_u_int(xdrs, &wa->wa_begoff) &&
IXDR_PUT_U_INT32(ptr, wa->wa_begoff);
xdr_u_int(xdrs, &wa->wa_begoff) &&