#!/bin/sh
#
# chkconfig:	2345 65 35
# description:  dhcp_probe attempts to discover DHCP and BootP servers on a directly-attached
#		Ethernet network. A network administrator can use this tool to locate
#		unauthorized DHCP and BootP servers.
# processname:	dhcp_probe
# pidfile:	/var/run/dhcp_probe.pid
# config:	/etc/dhcp_probe.cf
### BEGIN INIT INFO
# Provides:		dhcp_probe 
# Required-Start:	$network 
# Required-Stop:	$network 
# Default-Stop:		0 1 2 6 
# Short-Description:	start/stop/restart the dhcp_probe daemon 
# Description:		dhcp_probe attempts to discover DHCP and BootP servers.
### END INIT INFO

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

# Get network config
. /etc/sysconfig/network

[ -f /etc/sysconfig/dhcp_probe ] && . /etc/sysconfig/dhcp_probe

start() {
	if [ -f /var/lock/subsys/dhcp_probe ]; then
		msg_already_running "dhcp_probe"
		return
	fi
	for nic in $INTERFACES; do
		msg_starting "dhcp_probe on $nic"
		daemon /usr/sbin/dhcp_probe -p /var/run/dhcp_probe.$nic.pid $nic
	done
	touch /var/lock/subsys/dhcp_probe 
}	

stop() {
	if [ ! -f /var/lock/subsys/dhcp_probe ]; then
		msg_not_running "dhcp_probe"
		return
	fi
	for nic in $INTERFACES; do
		msg_stopping "dhcp_probe on $nic"
		killproc --pidfile /var/run/dhcp_probe.$nic.pid dhcp_probe
	done
	# kill leftovers if an interface was removed from $INTERFACES
	for file in /var/run/dhcp_probe*pid ; do
		nic=${file##/var/run/dhcp_probe.}
		nic=${nic%%pid}
		[ -z "$nic" ] && nic="unknown interface"
		msg_stopping "dhcp_probe on $nic"
		killproc --pidfile $file dhcp_probe
	done
	rm -f /var/lock/subsys/dhcp_probe >/dev/null 2>&1
}

reload(){
	for nic in $INTERFACES; do
		killproc --pidfile /var/run/dhcp_probe.$nic.pid dhcp_probe -HUP
	done
}

status_f() {
	for nic in $INTERFACES; do
		status --pidfile /var/run/dhcp_probe.$nic.pid "dhcp_probe on $nic"
	done
}

condrestart() {
	if [ ! -f /var/lock/subsys/dhcp_probe ]; then
		msg_not_running "dhcp_probe"
		return
	fi
	stop
	start
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
	status_f
	;;
  restart|force-reload)
	stop
	start
	;;
  reload)
	reload	
	;;
  condrestart|try-restart)
	restart
	;;
  *)
	msg_usage "$0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}" 
	exit 3
	;;
esac

exit $RETVAL