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Date: Wed, 2 Mar 2005 10:47:52 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cp (coreutils) 5.2.1 Corrupts Binary File
Message-ID: <20050302094752.GL18314@cygbert.vinschen.de>
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References: <200503020847 DOT j228lR6v007623 AT mail4 DOT magma DOT ca> <20050302085754 DOT GA28084 AT cygbert DOT vinschen DOT de> <loom DOT 20050302T100414-499 AT post DOT gmane DOT org>
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On Mar  2 09:11, Vincent Rowley wrote:
> Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> > On Mar  2 03:52, Vincent Rowley wrote:
> > > peugeot[/cygdrive/c/WINDOWS/system32]> cp notepad.exe notepad_copy.exe
> > > peugeot[/cygdrive/c/WINDOWS/system32]> diff notepad.exe notepad_copy.exe
> > > Files notepad.exe and notepad_copy.exe differ
> > 
> > I just tried it on binmode and textmode mounts and in all combinations
> > from binmode to textmoe and vice versa.  In no case I could reproduce
> > your above observation.
> > 
> > Are you sure you ran Cygwin's cp and diff?
> 
> Yes I am. And I did it again using the full path to the executable 
> (c:/apps/cygwin being my Cygwin installation directory).
> 
> peugeot[/cygdrive/c/WINDOWS/system32]> c:/apps/cygwin/bin/cp notepad.exe 
> notepad_copy.exe
> peugeot[/cygdrive/c/WINDOWS/system32]> c:/apps/cygwin/bin/diff notepad.exe 
> notepad_copy.exe
> Files notepad.exe and notepad_copy.exe differ

Can you please check the files using cmp?

> Do you think it has to do with the fact that I installed Cygwin to use files 
> in DOS mode (in one of the first tab of the Setup.exe application)?

You're using textmode mounts (I'd never do this voluntarily but YMMV).
As I wrote in my first reply, I tested to copy between all combinations
of binmode mounts and textmode mounts and the copy was in all cases
identical to the original.

> Have you found anything suspect in my cygcheck log?

No, unfortunately not.


Corinna

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

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