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Date: Thu, 22 Jul 2010 09:36:50 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: remove alternate access method / access control list
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On Jul 21 12:03, Eric Blake wrote:
> On 07/21/2010 11:44 AM, Fred Wheeler wrote:
> > chmod affects the access permissions according to the ntsec system,
> > but has no effect on this alternate access method.
> 
> This is possibly a bug in cygwin.  POSIX says:
> [...]
> That is, calling chmod() to change bits should also have the effect of
> removing ACLs, per POSIX (although POSIX appears to be silent about the
> case of calling chmod() to set the bits to the value they already have).
> 
> But you would need to test this on Linux, to see if cygwin behaves the
> same as Linux in this regard, [...]

  $ uname -sr
  Linux 2.6.33.6-147.fc13.x86_64
  $ touch foo
  $ ls -l foo
  -rw-r--r--. 1 corinna vinschen 0 Jul 22 08:57 foo
  [~]$ setfacl -m g:users:rw- foo
  [~]$ ls -l foo
  -rw-rw-r--+ 1 corinna vinschen 0 Jul 22 08:57 foo
  [~]$ chmod 600 foo
  [~]$ ls -l foo
  -rw-------+ 1 corinna vinschen 0 Jul 22 08:57 foo
  [~]$ getfacl foo
  # file: foo
  # owner: corinna
  # group: vinschen
  user::rw-
  group::r--                      #effective:---
  group:users:rw-                 #effective:---
  mask::---
  other::---


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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