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Re: fakeroot status
From: |
Marcus Brinkmann |
Subject: |
Re: fakeroot status |
Date: |
Wed, 15 May 2002 02:48:31 +0200 |
User-agent: |
Mutt/1.3.28i |
On Mon, May 13, 2002 at 05:45:21PM -0400, Roland McGrath wrote:
[me wrote]
> > However, if I don't lock the node, I get "/dev/fd/3: Bad file descriptor".
>
> Please investigate the latter problem. Firstly, (assuming non-suid
> scripts) it should find a name instead of using the /dev/fd kludge unless
> argv[0] has a stupid value. But even with that broken, the /dev/fd/3 ought
> to work (unless the script itself closes the descriptor before using it or
> something).
I don't get it. I have verified that exec correctly increases the dtable
size from 3 to 4, and adds the file port to it. I set a breakpoint at
S_exec_exec, and first it is hit executing "bashbug" with dtablesize 3, and then
it is hit executing /bin/sh /dev/fd/3 with dtablesize being 4, and dtable[0]
- dtable[3] look reasonable.
OTOH, I don't quite understand that code. For example, I don't see where
exactly the (new) file descriptors are added to the new task. However, I
verified that the /dev/fd/3 mechanism works in a non-fakeroot environment.
:-/
Thanks,
Marcus
--
`Rhubarb is no Egyptian god.' Debian http://www.debian.org brinkmd@debian.org
Marcus Brinkmann GNU http://www.gnu.org marcus@gnu.org
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de
- Re: fakeroot status, (continued)
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/14
- Re: fakeroot status, Roland McGrath, 2002/05/14
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/15
- Re: fakeroot status, Roland McGrath, 2002/05/15
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/15
- Re: fakeroot status, Roland McGrath, 2002/05/15
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/15
- Re: fakeroot status, Roland McGrath, 2002/05/15
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/15
- Re: fakeroot status, Roland McGrath, 2002/05/15
- Re: fakeroot status,
Marcus Brinkmann <=
- Re: fakeroot status, Roland McGrath, 2002/05/14
- Re: fakeroot status, Marcus Brinkmann, 2002/05/15
- Re: fakeroot status, Roland McGrath, 2002/05/15
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/15
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/14
- Re: fakeroot status, Marcus Brinkmann, 2002/05/14
- Re: fakeroot status, Thomas Bushnell, BSG, 2002/05/14