[8220] in bugtraq
Re: /tmp race in mc-4.5.0
daemon@ATHENA.MIT.EDU (Bennett Todd)
Thu Oct 15 14:06:13 1998
Date: Wed, 14 Oct 1998 16:51:58 -0400
Reply-To: Bennett Todd <bet@MORDOR.NET>
From: Bennett Todd <bet@MORDOR.NET>
X-To: Pavel Machek <pavel@BUG.UCW.CZ>
To: BUGTRAQ@NETSPACE.ORG
In-Reply-To: <19981013004104.21353@bug.ucw.cz>; from Pavel Machek on Tue,
Oct 13, 1998 at 12:41:04AM +0200
1998-10-13-00:41:04 Pavel Machek:
> [...] until someone invents safe & portable way of how to work
> with temporary files from shell.
>
> (Actually, is this safe? It might be safe & portable, unfortunately,
> it is also slow & ugly)
>
> TMPDIR=/tmp/mctmpdir.$$
> mkdir $TMPDIR || exit 0
> cd $TMPDIR
> do_something > $TMPDIR/file
> rm $TMPDIR/file
> rmdir $TMPDIR
If I were doing something like this, I'd probably code
progname=`basename $0`
die(){ echo "$progname: $*">&2; exit 1; }
umask 077
tmp=/tmp/$progname.$$
trap "rm -rf $tmp" 0
mkdir $tmp || die "can't mkdir $tmp"
# use $tmp/whatever, $tmp/whateverelse for tmp files
-Bennett
