(void) gettimeofday (&now, (struct timezone *) 0);
(void) __gettimeofday (&now, (struct timezone *) 0);
authunix_refresh (AUTH *auth){  struct audata *au = AUTH_PRIVATE (auth);  struct authunix_parms aup;  struct timeval now;  XDR xdrs;  int stat;  if (auth->ah_cred.oa_base == au->au_origcred.oa_base)    {      /* there is no hope.  Punt */      return FALSE;    }  au->au_shfaults++;  /* first deserialize the creds back into a struct authunix_parms */  aup.aup_machname = NULL;  aup.aup_gids = (gid_t *) NULL;  xdrmem_create (&xdrs, au->au_origcred.oa_base,		 au->au_origcred.oa_length, XDR_DECODE);  stat = xdr_authunix_parms (&xdrs, &aup);  if (!stat)    goto done;  /* update the time and serialize in place */  (void) gettimeofday (&now, (struct timezone *) 0);  aup.aup_time = now.tv_sec;  xdrs.x_op = XDR_ENCODE;  XDR_SETPOS (&xdrs, 0);  stat = xdr_authunix_parms (&xdrs, &aup);  if (!stat)    goto done;  auth->ah_cred = au->au_origcred;  marshal_new_auth (auth);done:  /* free the struct authunix_parms created by deserializing */  xdrs.x_op = XDR_FREE;  (void) xdr_authunix_parms (&xdrs, &aup);  XDR_DESTROY (&xdrs);  return stat;}