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Re: avoid mkdir/selinux failure when mknod is a shell built-in
From: |
Jim Meyering |
Subject: |
Re: avoid mkdir/selinux failure when mknod is a shell built-in |
Date: |
Wed, 16 Apr 2008 19:12:30 +0200 |
Matthew Woehlke <address@hidden> wrote:
> Eric Blake wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> According to Jim Meyering on 4/16/2008 6:30 AM:
>> | My first reaction was "great! that looks much better".
>> | Unfortunately, the technique doesn't work with that shell:
>> |
>> | openbsd$ ./mknod --version|head -1
>> | mknod (GNU coreutils) 6.10.188-7cb24
>> | openbsd$ PATH=. /bin/sh -c 'mknod --version'|head -1
>> | /bin/sh: mknod: --: unknown option
>> | /bin/sh: mknod: usage: mknod [-m mode] name [b | c] major minor
>> | /bin/sh: mknod: usage: mknod [-m mode] name p
>>
>> That still uses a builtin. You need an exec in the loop to force a PATH
>> search (even command, which bypasses functions, won't bypass builtins).
>> Or perhaps a forwarding command will help; do any of these work?
>>
>> $ /bin/sh -c '(exec mknod --version)' | head -1
>> $ /bin/sh -c 'nice mknod --version' | head -1
>> $ /bin/sh -c 'nohup mknod --version' | head -1
>
> I realize you already pushed something, but for the record, wouldn't
> env' work as well (and without the side effects)?
Ha! Good call.
That's even better ;-)
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, (continued)
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Thomas Schwinge, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Jim Meyering, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Eric Blake, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Jim Meyering, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Jim Meyering, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Ralf Wildenhues, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Eric Blake, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Ralf Wildenhues, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Eric Blake, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Matthew Woehlke, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in,
Jim Meyering <=
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Jim Meyering, 2008/04/16
- Re: avoid mkdir/selinux failure when mknod is a shell built-in, Andreas Schwab, 2008/04/16