adv_xtimestamp
ad->ad_verf.adv_xtimestamp = cryptbuf[0];
ATTEMPT(xdr_opaque(xdrs, (caddr_t)&verf->adv_xtimestamp,
verf.adv_xtimestamp.key.high = (u_long)*ixdr++;
verf.adv_xtimestamp.key.low = (u_long)*ixdr++;
cryptbuf[0] = verf.adv_xtimestamp;
verf.adv_xtimestamp = cryptbuf[0];
*ixdr++ = (long)verf.adv_xtimestamp.key.high;
*ixdr++ = (long)verf.adv_xtimestamp.key.low;