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Date: Wed, 20 Aug 2008 15:25:55 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: 1.7.0: File permissions: chmod u-x a.exe; chmod u+x a.exe says 	permission denied
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On Aug 20 14:34, Oliver Wienand wrote:
> Hi,
> 
> I am having problems with file permission in Cygwin 1.7. The output of
> gcc, i.e. a.exe, is not executable by default. Also after granting
> full access to a file with ACL and removing the executable-bit with
> chmod I can not set the executable-bit again with chmod.
> 
> Minimal testcase: touch a && cacls a /E /G `whoami`:F && chmod u-x a
> && chmod u+x a
> Result: chmod: Beim Setzen der Zugriffsrechte für ?a": Permission denied

That's a bug in Cygwin 1.7.0-28 where I screwed up user permissions.
Due to missing paranthesis in the code, the user has no rights to change
the permissions and DOS attributes on a file.  The missing execute
permissions don't really count anymore...

The fix requires two steps:

  - Update to Cygwin 1.7.0-29.
  - Either remove all files you created while using 1.7.0-28, or login
    with admin permissions and chmod all files with the desired permissions
    again.


Corinna

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

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