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Message-ID:	<37DE8FA5.4E2B887E@vinschen.de>
Date:	Tue, 14 Sep 1999 20:10:45 +0200
From:	Corinna Vinschen <corinna AT vinschen DOT de>
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To:	Joerg Schilling <schilling AT fokus DOT gmd DOT de>
CC:	cygwin-developers AT sourceware DOT cygnus DOT com
Subject:	Re: POSIX and uid_t resp. gid_t
References:	<199909140752 DOT JAA25881 AT fokus DOT gmd DOT de>

Joerg Schilling wrote:
> [...]
> The best starting point seems to be
> 
> http://docs.sun.com:80/ab2/coll.40.5/REFMAN2/@Ab2PageView/20592?
> 
> the man page for facl(2)

Thanks for the hint, Joerg.

The implementation is more or less identical to the Digital
implementation.

> >The real problem is the existence of the NT SID, which isn't
> >transparently reducable to an UX UID or GID. If we find a method,
> >the problem would be solved.
> 
> If NT does it different, I am wondering how they match the requirements
> of the US government for this topic.

The NT implementation is one step beyond the ones of Digital and Sun.
The SID concept allows a user of one host to own a file on another host.
This is only possible, if the host id is stored together with the user
id. This is (in short) the tragical aspect of NTs SID type relative to
the POSIX uid_t/gid_t types.

Regards,
Corinna

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