PREUN

/bin/sh

if [ "$1" = "0" ]; then     # execute this only if we are NOT doing an upgrade
    /sbin/service dnsmasq stop >/dev/null 2>&1 || :
    /sbin/chkconfig --del dnsmasq
fi

POSTIN

/bin/sh

if [ "$1" = "2" ]; then # if we're being upgraded
    /sbin/service dnsmasq condrestart >/dev/null 2>&1 || :
else # if we're being installed
    /sbin/chkconfig --add dnsmasq
fi