#!/bin/sh
# DHCP Server
#
# chkconfig:	345 80 20
# description:	DHCP relay helper

# Source function library
. /etc/rc.d/init.d/functions

# Get network config
. /etc/sysconfig/network

# Get service config
[ -f /etc/sysconfig/dhcp-helper ] && . /etc/sysconfig/dhcp-helper

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down DHCPD
		exit 1
	fi
else
	exit 0
fi

RETVAL=0
# See how we were called.
case "$1" in
  start)
	# Check if the service is already running?
	if [ ! -f /var/lock/subsys/dhcp-helper ]; then
		msg_starting "DHCP helper"
		
		[ -n "${RELAY_TO_SERVERS}" ] && DHCPH_OPTIONS="${DHCPH_OPTIONS} -s ${RELAY_TO_SERVERS}"
		[ -n "${BROADCAST_TO_INTERFACE}" ] && DHCPH_OPTIONS="${DHCPH_OPTIONS} -b ${BROADCAST_TO_INTERFACE}"
		[ -n "${LISTEN_INTERFACES}" ] && DHCPH_OPTIONS="${DHCPH_OPTIONS} -i ${LISTEN_INTERFACES}"
		[ -n "${EXCLUDE_INTERFACES}" ] && DHCPH_OPTIONS="${DHCPH_OPTIONS} -e ${EXCLUDE_INTERFACES}"
				
		daemon dhcp-helper ${DHCPH_OPTIONS} 
		RETVAL=$?
		[ $RETVAL -eq 0 ] && touch /var/lock/subsys/dhcp-helper
	else
		msg_already_running "DHCP helper"
	fi
	;;
  stop)
	if [ -f /var/lock/subsys/dhcpd ]; then
		msg_stopping "DHCP helper"
		killproc dhcp-helper
		rm -f /var/run/dhcpd.pid /var/lock/subsys/dhcp-helper >/dev/null 2>&1
	else
		msg_not_running "DHCP helper"
	fi
	;;
  restart|reload)
	$0 stop
	$0 start
	exit $?
	;;
  status)
	status dhcp-helper
	exit $?
	;;
  *)
	msg_usage "$0 {start|stop|restart|force-reload|status}"
	exit 3
esac

exit $RETVAL