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#!/bin/sh
#
# /etc/rc.d/rc.vnstat - Start/stop/restart the vndstat  daemon.
# To make vnstat start automatically at boot, make this
# file executable: chmod 0755 /etc/rc.d/rc.vnstat
#

CONFIGFILE="/etc/vnstat.conf"
INTERFACE="eth0"

DBASEDIR="/var/lib/vnstat/"
PIDFILE="/var/run/vnstat.pid"

vnstat_start() {
  if [ -e "$PIDFILE" ]; then
    echo "vnstatd is already running under PID: $PIDFILE"
  elif [ -x /usr/sbin/vnstatd -a -r $CONFIGFILE ]; then
	if [ ! -e "$DBASEDIR/$INTERFACE" ]; then
	  # Sadly vnstat throws everything out over STDOUT instead of
	  # using STERR for warnings and such.
	  /usr/bin/vnstat -u -i "$INTERFACE" 1> /dev/null
      sleep 2
    fi
	echo "Starting the vnstat daemon for interface $INTERFACE..."
	/usr/sbin/vnstatd --config $CONFIGFILE --daemon
  fi
}

vnstat_stop() {
  # There be demons here. I am sure we can get the pid from /var/run/
  # for a much cleaner shutdown.
  echo -n "Stopping the vnstat Daemon..."
  if [ -r $PIDFILE ]; then
    kill $(cat $PIDFILE)
	sleep 2
	if [ -e "$PIDFILE" ]; then
	  rm $PIDFILE
	fi
	echo "Done"
  else
	killall vnstatd
	echo "Done"
  fi
}

vnstat_restart() {
  echo "restarting the vnstart daemon..."
  vnstat_stop
  sleep 2
  vnstat_start
}


case "$1" in
    'start')
        vnstat_start
        ;;
    'stop')
        vnstat_stop
        ;;
	'restart','reload')
		vnstat_restart 
		;;
	'status')
		vnstat_status
		;;
    *)
		echo "Usage: $0 {start|stop|restart|reload|status}"
        exit 1
        ;;
esac