From: Jesse Pollard <pollard@tomcat.admin.navo.hpc.mil>
To: mdharm-kernel@one-eyed-alien.net, Jesse Pollard <jesse@cats-chateau.net>
Cc: Keith Owens <kaos@ocs.com.au>,
Kernel Developer List <linux-kernel@vger.kernel.org>
Subject: Re: using mount from SUID scripts?
Date: Wed, 8 Aug 2001 07:31:02 -0500 (CDT) [thread overview]
Message-ID: <200108081231.HAA69953@tomcat.admin.navo.hpc.mil> (raw)
...
> Unfortunately, the snippit of code here doesn't do the job... after the
> first two lines, the UID is unchanged, while the EUID is still 0 (root). I
> used system "/usr/bin/id" to verify this. /bin/mount is still complaining.
>
> Oh, wait... $> is effective and $< is real. So that first line should be
> ($r, $e) =3D ($<, $>); -- this makes everything happy!
drat... I thought I had that right...
Also the last line should be swapped too:
($r, $e) = ($<, $>);
$< =3D $e;
<<<do stuff>>>
($<, $>) = ($r,$e);
-------------------------------------------------------------------------
Jesse I Pollard, II
Email: pollard@navo.hpc.mil
Any opinions expressed are solely my own.
next reply other threads:[~2001-08-08 12:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-08 12:31 Jesse Pollard [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-08-07 23:29 Matthew Dharm
2001-08-08 1:12 ` Keith Owens
2001-08-08 2:29 ` Jesse Pollard
2001-08-08 5:17 ` Matthew Dharm
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