#!/bin/bash
#
# linc		Startup script for the Linc client
#
# Author:	Philip Tellis <philip.tellis@gmx.net>
#
# chkconfig: 2345 20 80
# description: linc is a free multiplatform client for Cyberoam and \
#              24online.
# processname: linc
# pidfile: /var/run/linc.pid
# config: /etc/lincrc

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

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

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 1

servaddr=`awk '/srvaddr/ {print $3}' /etc/lincrc`
servport=`awk '/srvport/ {print $3}' /etc/lincrc`

if ! /bin/ping -c 1 -w 3 $servaddr &>/dev/null ; then
	[ -x /usr/bin/logger ] && logger $"linc server not responding to ping"
	exit 1
fi

# Path to the linc script
linc=/usr/bin/linc
prog=linc
RETVAL=0

punch_firewall() {
	if ! ipchains -L input -n | grep -q "$servaddr.*$servport" ; then
		ipchains -I input -s $servaddr/32 $servport -d 0/0 -p udp -j ACCEPT
		[ -x /usr/bin/logger ] && logger $"punching linc server $servaddr:$servport through the firewall"
	fi
}

start() {
        echo -n $"Starting $prog: "
	punch_firewall
        daemon $linc
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && touch /var/lock/subsys/linc
        return $RETVAL
}
stop() {
	echo -n $"Stopping $prog: "
	killproc $prog -INT
	RETVAL=$?
	echo
	[ $RETVAL = 0 ] && rm -f /var/lock/subsys/linc /var/run/linc.pid
}
login() {
	if [ -e /var/lock/subsys/linc ]; then
		echo -n $"Logging in $prog: "
		killproc $prog -USR1
		RETVAL=$?
		echo
	else
		start
	fi
}
logout() {
	if [ -e /var/lock/subsys/linc ]; then
		echo -n $"Logging out $prog: "
		killproc $prog -USR2
		RETVAL=$?
		echo
	fi
}



# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
        status $linc
	RETVAL=$?
	;;
  restart)
	stop
	start
	;;
  logout)
	logout
	;;
  login)
	login
	;;
  *)
	echo $"Usage: $prog {start|stop|restart|status|help|login|logout}"
	exit 1
esac

exit $RETVAL