#!/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=vpnc

case "$1" in
	""|start|restart)
		if [ ! -r "/mod/etc/conf/$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

	if [ ! -r "/mod/etc/$DAEMON.conf" ]; then
		echo "Error[$DAEMON]: not configured" 1>&2
		exit 1
	fi

	echo -n 'Starting vpnc...'
	
	# find remote network for tunneling
	NETWORK="$(grep network /var/mod/etc/vpnc.conf | sed -e 's/#network //g')"
	MASK="$(grep mask /var/mod/etc/vpnc.conf | sed -e 's/#mask //g')"
	
	if [ $NETWORK != "0.0.0.0" ]; then
		sed -e 's/#set -x/INTERNAL_IP4_DNS=\nCISCO_SPLIT_INC=1\nCISCO_SPLIT_INC_0_ADDR='$NETWORK'\nCISCO_SPLIT_INC_0_MASK='$MASK'\nCISCO_SPLIT_INC_0_MASKLEN=22\nCISCO_SPLIT_INC_0_PROTOCOL=0\nCISCO_SPLIT_INC_0_SPORT=0\nCISCO_SPLIT_INC_0_DPORT=0\n\n#set -x\n/g' /etc/default.vpnc/vpnc-script > /var/tmp/vpnc-script
		chmod +x /var/tmp/vpnc-script
		$DAEMON --script /var/tmp/vpnc-script /mod/etc/$DAEMON.conf
	else
		$DAEMON --script /etc/default.vpnc/vpnc-script /mod/etc/$DAEMON.conf
	fi

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

stop () {
	echo -n 'Stopping vpnc...'
	exitval=0
	rm -f /mod/etc/$DAEMON.conf
	if [ -n "$(pidof "$DAEMON")" ]; then
		#daemon is running at the moment
		killall -15 $DAEMON > /dev/null 2>&1
		exitval=$?
	fi
	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

case "$1" in
	""|load)
		modreg cgi 'vpnc' 'Vpnc'

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

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

exit 0