#!/bin/sh

DAEMON=openntpd

MULTIDUPNPPARAM=`multid -? 2>&1 | grep "upnp" | sed 's/^[ \t]*//' |cut -c 1-3`
MULTIDNTPPARAM=`multid -? 2>&1 | grep "NTP" | sed 's/^[ \t]*//' |cut -c 1-3`

. /etc/init.d/modlibrc

start() {
	modlib_adduser ntp -G users -D -S -g "NTP daemon"

	# Setting permissions
	chown root /mod/home/ntp -R
	chmod 0700 /mod/home/ntp -R

	(
		if [ -x "/tmp/flash/${DAEMON}_conf" ]; then
			/tmp/flash/${DAEMON}_conf
		else
			/mod/etc/default.$DAEMON/${DAEMON}_conf
		fi

		if [ -r "/tmp/flash/${DAEMON}.extra" ]; then
			cat /tmp/flash/${DAEMON}.extra
		fi
	) > /mod/etc/$DAEMON.conf

	echo 'Starting ntp server...'

	if [ "$OPENNTPD_MULTID" = "no" ]; then
		echo ' * Restarting multid without ntp client...'
		multid -s > /dev/null 2>&1
		
		if [ ! -e "/sbin/igdd" ] && [ ! -e "/sbin/upnpd" ]; then
			multid $MULTIDUPNPPARAM $MULTIDNTPPARAM > /dev/null 2>&1
		else
			multid $MULTIDNTPPARAM > /dev/null 2>&1
		fi
	fi

	if [ ! -e "/var/db" ]; then
		mkdir -p /var/db
	fi

	if [ ! -e "/mod/etc/ntpd.conf" ]; then
		echo "Creating needed ntpd.conf links"
		ln -s /tmp/flash/ntpd.conf /mod/etc/ntpd.conf
	fi
	
	ntpd -s -f /mod/etc/ntpd.conf
	exitval=$?
	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

stop () {
	echo -n 'Stopping ntp server...'
	kill -USR1 $(pidof -s ntpd) > /dev/null 2>&1
	exitval=$?
	
	# Restart multid without "-t" option
	multid -s > /dev/null 2>&1
	if [ ! -e "/sbin/igdd" ] && [ ! -e "/sbin/upnpd" ]; then
		multid $MULTIDUPNPPARAM > /dev/null 2>&1
	else
		multid > /dev/null 2>&1
	fi

	rm -f /mod/etc/$DAEMON.conf

	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

case "$1" in
	""|load)
		modreg cgi 'openntpd' 'Openntpd'

		deffile='/mod/etc/default.openntpd/openntpd_conf.def'
		[ -r '/tmp/flash/openntpd_conf.def' ] && deffile='/tmp/flash/openntpd_conf.def'
		[ "$CONFIG_FILE" != '/etc/ntpd.conf' ] && modreg file 'openntpd_conf' 'Openntpd config' 0 "$deffile"
		
		if [ "$OPENNTPD_ENABLED" != "yes" ]; then
			echo "$DAEMON is disabled" 1>&2
			exit 1;
		fi

		start
		;;
	unload)
		stop
		modunreg file 'openntpd_conf'
		modunreg cgi 'openntpd'
		;;
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		stop
		sleep 1
		start
		;;
	status)
		if [ -z "$(pidof ntpd)" ]; then
			echo 'stopped'
		else
			echo 'running'
		fi
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;
esac

exit 0