PREUN

/bin/sh

if [ $1 = 0 ]; then
   /sbin/service shorewall stop >/dev/null 2>&1
   /sbin/chkconfig --del shorewall
   rm -f /var/lib/shorewall/*
fi

POSTIN

/bin/sh

if [ $1 = 1 ]; then
   /sbin/chkconfig --add shorewall
fi