#!/bin/sh
#
# chkconfig: - 55 45
# description:	The arpwatch daemon attempts to keep track of ethernet/ip \
#		address pairings.
# processname: arpwatch


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

# Get network config
. /etc/sysconfig/network

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

# Check that networking is up.
if [ "${NETWORKING}" = "no" ]; then
	echo "WARNING: Networking is down. Arpwatch service can't be runed."
	exit 1
fi


# See how we were called.
case "$1" in
  start)
	# Check if the service is already running?
	if [ ! -f /var/lock/subsys/arpwatch ]; then
		if [ -z "$INTERFACES" ]; then
			INTERFACES="`/sbin/ip link show \
			  | egrep '^[^ ].*' |egrep -v "NOARP|LOOPBACK" \
			  |sed 's/[0-9]*: \([a-zA-Z0-9]*\)[@:].*/\1/'|xargs`"
		fi
		for IFC in $INTERFACES; do
			show "Starting arpwatch for $IFC"
			touch /var/state/arpwatch/$IFC.dat
			daemon arpwatch -i $IFC -f /var/state/arpwatch/$IFC.dat
		done
	else
		echo "arpwatch already is running"
	fi
	touch /var/lock/subsys/arpwatch
	;;
  stop)
	show "Stopping arpwatch"
	killproc arpwatch
	rm -f /var/lock/subsys/arpwatch
	;;
  status)
	status arpwatch
	;;
  restart|reload)
	$0 stop
	$0 start
	;;
  *)
	echo "Usage: $0 {start|stop|status|restart|reload}"
	exit 1
esac

exit 0