int area_gids[NGRPS];
gid_t area_gids[NGRPS];
_svcauth_unix(rqst, msg)	register struct svc_req *rqst;	register struct rpc_msg *msg;{	register enum auth_stat stat;	XDR xdrs;	register struct authunix_parms *aup;	register long *buf;	struct area {		struct authunix_parms area_aup;		char area_machname[MAX_MACHINE_NAME+1];		int area_gids[NGRPS];	} *area;	u_int auth_len;	int str_len, gid_len;	register int i;	area = (struct area *) rqst->rq_clntcred;	aup = &area->area_aup;	aup->aup_machname = area->area_machname;	aup->aup_gids = area->area_gids;	auth_len = (u_int)msg->rm_call.cb_cred.oa_length;	xdrmem_create(&xdrs, msg->rm_call.cb_cred.oa_base, auth_len,XDR_DECODE);	buf = XDR_INLINE(&xdrs, auth_len);	if (buf != NULL) {		aup->aup_time = IXDR_GET_LONG(buf);		str_len = IXDR_GET_U_LONG(buf);		if (str_len > MAX_MACHINE_NAME) {			stat = AUTH_BADCRED;			goto done;		}		bcopy((caddr_t)buf, aup->aup_machname, (u_int)str_len);		aup->aup_machname[str_len] = 0;		str_len = RNDUP(str_len);		buf = (u_long *) ((char *) buf + str_len);		aup->aup_uid = IXDR_GET_LONG(buf);		aup->aup_gid = IXDR_GET_LONG(buf);		gid_len = IXDR_GET_U_LONG(buf);		if (gid_len > NGRPS) {			stat = AUTH_BADCRED;			goto done;		}		aup->aup_len = gid_len;		for (i = 0; i < gid_len; i++) {			aup->aup_gids[i] = IXDR_GET_LONG(buf);		}		/*		 * five is the smallest unix credentials structure -		 * timestamp, hostname len (0), uid, gid, and gids len (0).		 */		if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len) {			(void) printf("bad auth_len gid %d str %d auth %d\n",			    gid_len, str_len, auth_len);			stat = AUTH_BADCRED;			goto done;		}	} else if (! xdr_authunix_parms(&xdrs, aup)) {		xdrs.x_op = XDR_FREE;		(void)xdr_authunix_parms(&xdrs, aup);		stat = AUTH_BADCRED;		goto done;	}	rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;	rqst->rq_xprt->xp_verf.oa_length = 0;	stat = AUTH_OK;done:	XDR_DESTROY(&xdrs);	return (stat);}