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Re: /tmp race in mc-4.5.0
From: bet () MORDOR NET (Bennett Todd)
Date: Wed, 14 Oct 1998 16:51:58 -0400


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



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