postrm is in john 1.8.0-2build1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | #!/bin/sh
set -e
# Revert relocation of a conffile from one location to another.
# The forward path is preinst install|upgrade.
# $1 is the original pathname of the conffile,
# $2 is the pathname of the current conffile.
unmv_conffile ()
{
if [ -e "$1" ] ; then
echo "Not reverting conffile relocation to $2;"
echo "original pathname $1 exists."
elif [ -e "$1.moved_by_preinst" ] ; then
echo "Reverting removal of unmodified conffile:"
echo -n " "
mv -v "$1.moved_by_preinst" "$1"
elif [ -e "$2" ] ; then
echo "Reverting relocation of modified conffile to original location:"
echo -n " "
mv -fv $2 $1
fi >&2
}
case $1 in
disappear|remove)
# These are the restore and cracked-password file used by the
# cronjob for attacking the system password file for a short
# period each day:
d=/var/lib/john
rm -f $d/restore $d/john.pot
d=/var/run/john
# FIXME: this is configurable...
rm -f "$d/john.pid $d/cronpasswd.*"
;;
abort-install|abort-upgrade)
# Revert relocation of conffiles:
p1=/etc
p2=/etc/john
if dpkg --compare-versions "$2" le-nl 1.6-27; then
unmv_conffile $p1/john.ini $p2/john.conf
unmv_conffile $p1/john-mail.conf $p2/john-mail.conf
unmv_conffile $p1/john-mail.msg $p2/john-mail.msg
# "Display the warning, but don't fail if nonempty":
rmdir $p2 || rmdir --ignore-fail-on-non-empty $p2
fi
;;
purge|upgrade|failed-upgrade)
# These cases need no actions here
:
;;
*)
echo "$0: undocumented call: $@" >&2
exit 1
;;
esac
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