Bug#373786: /etc/cron.daily/exim4-base should unset TMPDIR

[Marc Haber]

On Mon, Oct 02, 2006 at 12:58:44PM +0200, Tollef Fog Heen wrote:
> You probably rather want to check if TMP and TMPDIR are writable, and if 
> not reset them to /tmp or similar.

I have committed a fix to svn where the daily cron job first tries the
process with start-stop-daemon, and falls back to a plain su if the
invocation via start-stop-daemon fails for some reason.

Code:
if [ -x /usr/sbin/exim_tidydb ]; then
  cd $SPOOLDIR/db || exit 1
  if ! find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -type f \
    -printf '%f\0' | \
      xargs -0r -n 1 \
      start-stop-daemon --start --exec /usr/sbin/exim_tidydb \
      --chuid Debian-exim:Debian-exim -- $SPOOLDIR > /dev/null; then
    # if we reach this, invoking exim_tidydb from start-stop-daemon has
    # failed, most probably because of libpam-tmpdir is in use
    # (see #373786 and #376165)
    find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -type f \
    -printf '%f\0' | \
    su - --shell /bin/bash \
         --command "xargs -0r -n 1 /usr/sbin/exim_tidydb $SPOOLDIR > /dev/null" \
         Debian-exim
  fi
fi

Link to svn:
http://svn.debian.org/wsvn/pkg-exim4/exim/trunk/debian/exim4-base.cron.daily?op=file&rev=0&sc=0

Piotr, can you please try if this works on your system with
libpam-tmpdir?

Greetings
Marc

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