#!/bin/sh
# Start/Stop script for l7vsd
#
# chkconfig: - 95 34
# description: Start and stop l7vsd
#              
# processname: l7vsd
#
# Author: Shinya TAKEBAYASHI
# Released: January 2008
# Licence: GNU General Public Licence

#L7VSD_OPTIONS=""		# run as non-blocking mode
L7VSD_OPTIONS="-b"		# run as blocking mode

PROG="l7vsd"
DAEMON="/usr/sbin/l7vsd"
SOCKFILE="/var/run/l7vs/l7vs"
PIDFILE="/var/run/l7vsd.pid"
LOCKFILE="/var/lock/subsys/l7vsd"

start() {
    if [ -e $PIDFILE ]; then
	PROCS=`ps ax | grep $DAEMON | grep -v grep | wc -l`
	if [ $PROCS -ne 0 ]; then
	    echo "$PROG is running."
	    RETVAL=-1
	    return
	fi
	cleanup
    fi

    ulimit -n 65536
    echo -n "Starting $PROG: " 
    `$DAEMON $L7VSD_OPTIONS`
    RETVAL=$?

    if [ $RETVAL -ne 0 ]; then
	echo "error occured."
	echo "$PROG was not started."
    else
	echo "done."
	pidof $PROG > $PIDFILE
	touch $LOCKFILE
    fi

    return $RETVAL
}

stop() {
    PID=`pidof l7vsd`
    if [ -z $PID ]; then
	echo "$PROG is not running."
	RETVAL=-1
	cleanup
	return
    fi

    echo -n "Stopping $PROG: "
    kill $PID
    RETVAL=$?
    
    if [ $RETVAL -eq 0 ]; then
	echo "done."
	cleanup
    fi

    return $RETVAL
}

status() {
    if [ ! -e $PIDFILE ]; then
	echo "$PROG is not running."
	RETVAL=-1
    else
	echo -n "$PROG running with pid: "
	cat $PIDFILE
	RETVAL=$?
    fi
    return $RETVAL
}

cleanup() {
	rm -rf $PIDFILE
	rm -rf $SOCKFILE
	rm -rf $LOCKFILE
}


# Prefer for Running script
if [ ! -x $DAEMON ]; then
    echo "$DAEMON does not exist!"
    exit -1
fi

# Privilege check

if [ `id -u` -ne '0' ]; then
    echo "This script must run as root."
    exit -1
fi

case "$1" in
    start)
	start
	;;
    
    stop)
	stop
	;;
    
    status)
	status
	;;

    restart)
	stop
	sleep 1
	start
	;;

    condrestart)
	stop
	sleep 1
	start
	;;
    
    *)
	echo "Usage: $0 {start|stop|restart|condrestart|status}"
	RETVAL=-1

esac

exit $RETVAL