PREUN

/bin/sh

if [ $1 -eq 0 ] ; then
  /sbin/service bird stop >/dev/null 2>&1
  /sbin/chkconfig --del bird
fi

POSTIN

/bin/sh

/sbin/chkconfig --add bird

POSTUN

/bin/sh

if [ $1 -ge 1 ] ; then
  /sbin/service bird condrestart >/dev/null 2>&1 || :
fi