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From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: romain@orebokech.com, emacs-devel@gnu.org
Subject: Re: [PATCH] POSIX ACL support
Date: Wed, 21 Nov 2012 20:17:30 +0200	[thread overview]
Message-ID: <83k3tevn0l.fsf@gnu.org> (raw)
In-Reply-To: <50ACF4E9.60604@cs.ucla.edu>

> Date: Wed, 21 Nov 2012 07:36:09 -0800
> From: Paul Eggert <eggert@cs.ucla.edu>
> Cc: emacs-devel@gnu.org
> 
> On 11/21/2012 06:25 AM, Stefan Monnier wrote:
> > I'd start with whichever is easiest.
> 
> I suggest something that's even simpler at the C level:
> an API that simply clones attributes from one file to
> another.  The two files can be represented by file names
> and file descriptors.  There's no need to build a runtime
> representation in C or Lisp of the metadata.  Just copy
> the metadata directly, from one file to the other.

But that could be impossible in some cases, no?  Can a user on a Posix
host always copy the ACLs, no matter what access right these ACLs
specify?

And in addition, this could be inconvenient or even dangerous: you
could set access rights on a file you created that give you no access
at all, not even read access.  IOW, something like umask filtering
might be necessary to avoid shooting yourself in the foot.  Right?



  parent reply	other threads:[~2012-11-21 18:17 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-18 22:27 [PATCH] POSIX ACL support Romain Francoise
2012-11-19  3:44 ` Eli Zaretskii
2012-11-19 21:41   ` Romain Francoise
2012-11-20  3:44     ` Eli Zaretskii
2012-11-19 17:11 ` Glenn Morris
2012-11-19 17:47   ` Eli Zaretskii
2012-11-19 18:11   ` Stefan Monnier
2012-11-19 21:33     ` Romain Francoise
2012-11-20 18:15       ` Stefan Monnier
2012-11-21 12:51         ` Romain Francoise
2012-11-21 14:25           ` Stefan Monnier
2012-11-21 15:36             ` Paul Eggert
2012-11-21 16:01               ` Romain Francoise
2012-11-21 18:17               ` Eli Zaretskii [this message]
2012-11-21 18:25                 ` Paul Eggert
2012-11-21 19:09                   ` Achim Gratz
2012-11-21 19:40                     ` Eli Zaretskii
2012-11-21 19:52                       ` Achim Gratz
2012-11-19 21:55     ` Paul Eggert
2012-11-20 18:16       ` Stefan Monnier

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