From:	MERC::"uunet!CRVAX.SRI.COM!RELAY-INFO-VAX" 13-APR-1992 14:46:50.23
To:	TIHOR@ACFcluster.NYU.EDU
CC:	info-vax@sri.com, info-multinet@TGV.COM,
	wintcp-l%ubvm.bitnet%cunyvm.cuny.edu@TGV.COM (wintcp-l @ ubvm.bitnet @ cunyvm.cuny.edu)
Subj:	Re: TGV MultiNet vs. WIN/TCP NFS Client

>> I am also mildly curious as to why TGV choose the reserved area rather than an
>> Application ACE for the SETUID/SETGID information.

    Actually, we don't store these bits in the reserved area of the file
header (defined in the ODS-2 specificiation, section 3.2.5), but rather
in the reserved-to-customer byte of the user-characteristics longword
(defined in the ODS-2 specification, section 3.5.2.14), FCH$L_FILECHAR.

    Application ACEs are definitely not the only nor the best way to store
such "extra" information with a file. Besides being relatively expensive
to read (compared to UCHAR) they aren't preserved by BACKUP/INTERCHANGE.

								Ken

