#!/bin/bash
#
# dnsupdate	This shell script takes care of starting and stopping
# 		dnsupdate.
#
# chkconfig: 2345 56 44
# description: dnsupdate is an automatic IP address updater as defined \
# 	in RFC2136. It is used to submits dynamic IP address update \
# 	requests to a name server automatically.
# pidfile: /var/run/dnsupdate.pid
# config: /etc/dnsupdate/dnsupdate.conf

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

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

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

# Source dnsupdate configureation.
if [ -f /etc/sysconfig/dnsupdate ]; then
	. /etc/sysconfig/dnsupdate
else
	INTERVAL=3600
fi

dnsupdate=/usr/bin/dnsupdate
config=/etc/dnsupdate/dnsupdate.conf

[ -f $dnsupdate ] || exit 0
[ -f $config ] || exit 0

RETVAL=0
prog=dnsupdate

start() {
	# Start daemons.
	if [ -f "/var/run/dnsupdate.pid" ]; then
		echo -n $"$prog: already running"
		echo
		return 1
	fi
	$dnsupdate --daemon $INTERVAL $OPTIONS
	RETVAL=$?
	if [ $RETVAL -eq 0 ]; then
		action $"Starting $prog: " /bin/true
	else
		action $"Starting $prog: " /bin/false
	fi
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/dnsupdate
	return $RETVAL
}
stop() {
	# Stop daemons.
	echo -n $"Stopping $prog: "
	killproc $dnsupdate
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/dnsupdate /var/run/dnsupdate.pid
}
restart() {
	stop
	start
}	

# See how we were called.
case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	status)
		status $dnsupdate
		RETVAL=$?
		;;
	restart)
		restart
		;;
	condrestart)
		[ -f /var/run/dnsupdate.pid ] && restart
		;;
	*)
		echo $"Usage: $0 {start|stop|status|restart|condrestart}"
		exit 1
esac

exit $?