#!/bin/sh

export PATH=/sbin:/bin:/usr/sbin:/usr/bin:/mod/sbin:/mod/bin:/mod/usr/sbin:/mod/usr/bin
export LD_LIBRARY_PATH=/mod/lib

DAEMON=dnsmasq

case "$1" in
	""|load|start|restart)
		if [ ! -r "/mod/etc/conf/$DAEMON.cfg" ]; then
			echo "Error[$DAEMON]: not configured" 1>&2
			exit 1
		fi

		. /mod/etc/conf/$DAEMON.cfg
		;;
esac

start() {
	(
		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 -n 'Starting dnsmasq...'
	if [ "$1" != "nomultid" ]; then
		multid -s > /dev/null 2>&1
	fi
	$DAEMON -p "$DNSMASQ_DNS_PORT" $DNSMASQ_OPTIONS
	exitval=$?
	if [ "$1" != "nomultid" ]; then
		multid > /dev/null 2>&1
	fi

	if [ ! -L "/var/flash/multid.leases" -a \
	     "$DNSMASQ_DHCP" = "yes" ]; then
		rm -f /var/flash/multid.leases
		touch /var/tmp/multid.leases
		ln -s /var/tmp/multid.leases /var/flash/multid.leases
	fi

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

stop() {
	echo -n 'Stopping dnsmasq...'
	if [ "$1" != "nomultid" ]; then
		multid -s > /dev/null 2>&1
	fi
	killall $DAEMON > /dev/null 2>&1
	exitval=$?
	if [ "$1" != "nomultid" ]; then
		multid > /dev/null 2>&1
	fi

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

	if [ -L "/var/flash/multid.leases" ]; then
		major="$(grep tffs /proc/devices)"
		rm -f /var/flash/multid.leases
		mknod /var/flash/multid.leases c ${major%%tffs} $((0x70))
	fi

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

case "$1" in
        ""|load)
		modreg cgi 'dnsmasq' 'Dnsmasq'

		if [ "$DNSMASQ_ENABLED" != "yes" ]; then
			echo "$DAEMON is disabled" 1>&2
			exit 1;
		fi

		if [ -e "/var/run/dnsmasq.pid" ]; then
			echo "$DAEMON already started."
		else
			if [ -z "$(pidof multid)" ]; then
				start nomultid
			else
				start
			fi
		fi
		;;
	unload)
		stop
		modunreg cgi 'dnsmasq'
		;;
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		multid -s > /dev/null 2>&1
		stop nomultid
		sleep 1
		start nomultid
		multid > /dev/null 2>&1
		;;
	status)
		if [ -z "$(pidof "$DAEMON")" ]; then
			echo 'stopped'
		else
			echo 'running'
		fi
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;
esac

exit 0