#!/bin/sh
#
# dhcrelay      This shell script takes care of starting and stopping
#               dhcrelay.
#
# chkconfig: 2345 65 35
# description: dhcrelay provides the DHCP Relay service.
#
# processname: dhcrelay
# pidfile: /var/run/dhcrelay.pid
#
### BEGIN INIT INFO
# Provides: dhcrelay
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Short-Description: The dhcrelay daemon
# Description: dhcrelay provides the DHCP Relay service.
### END INIT INFO

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

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -x /usr/sbin/dhcrelay ] || exit 0

# The following variables can be set in the file
# /etc/sysconfig/dhcrelay.

# Define SERVERS with a list of one or more DHCP servers where
# DHCP packets are to be relayed to and from.  This is mandatory.
#SERVERS="10.11.12.13 10.9.8.7"
SERVERS=""

# Define OPTIONS with any other options to pass to the dhcrelay server.
# See dhcrelay(8) for available options and syntax.
#OPTIONS="-q -i eth0 -i eth1"
OPTIONS="-q"

# Source dhcrelay configuration.  Values specified in this file override
# the defaults above.
[ -f /etc/sysconfig/dhcrelay ] && . /etc/sysconfig/dhcrelay

# Check that at least one DHCP server to relay to was specified.
[ "${SERVERS}" = "" ] && exit 0

RETVAL=0

start() {
	# Start daemons.
	echo -n "Starting dhcrelay: "
	daemon /usr/sbin/dhcrelay $OPTIONS $SERVERS
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/dhcrelay
	return $RETVAL
}

stop() {
	# Stop daemons.
	echo -n "Shutting down dhcrelay: "
	killproc dhcrelay
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/dhcrelay
	return $RETVAL
}

# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  restart|reload)
	stop
	start
	RETVAL=$?
	;;
  condrestart)
	if [ -f /var/lock/subsys/dhcrelay ]; then
	    stop
	    start
	    RETVAL=$?
	fi
	;;
  status)
	status dhcrelay
	RETVAL=$?
	;;
  *)
	echo "Usage: dhcrelay {start|stop|restart|condrestart|status}"
	exit 1
esac

exit $RETVAL