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Date:	Mon, 10 Aug 2009 20:11:12 +0400
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Subject:	Re: [1.7] cygwin allows writing to readonly files
From:	Alexey Borzenkov <snaury AT gmail DOT com>
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On Mon, Aug 10, 2009 at 5:25 PM, Corinna
Vinschen<corinna-cygwin AT cygwin DOT com> wrote:
> That's a bug in your testsuite. =C2=A0I assume you're running the tests as
> administrator, right? =C2=A0Administrators have the right to write to all
> files, even R/O files, according to POSIX rules. =C2=A0Your test would fa=
il
> on Linux as well, if you're running it as root.

Well, it's not my testsuite, but yes, I'm running under administrator
account. But it makes me wonder, how does it work? Do you change ACLs
temporarily?

Anyway, it means there is a bug in perl, because on Linux:

root AT kitsu:~# touch test.txt
root AT kitsu:~# chmod 0444 test.txt
root AT kitsu:~# perl -e 'print "writable\n" if -w "test.txt"'
writable

On Cygwin 1.7 perl thinks that the file is not writable.

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