#! /bin/sh
#
# chkconfig: 2345 60 40
# description: Starts the cfengine daemons for remote and periodic \
#    execution of cfengine and for environment monitoring.

set -e

PATH=/sbin:/bin:/usr/sbin:/usr/bin

CFSERVD=/usr/sbin/cfservd
CFEXECD=/usr/sbin/cfexecd
CFENVD=/usr/sbin/cfenvd

# Has the package been 'removed' but not purged?
test -f $CFSERVD || exit 0

if start-stop-daemon -V >/dev/null 2>&1; then
    # start-stop-daemon runs OK
    SSD=1
else
    # Probably not a Debian system
    SSD=0
fi

ctrl_daemon () {
    # Usage: ctrl_daemon <op> <daemon> [<args>]
    #  where <op> is 'start' or 'stop'. 'stop' args are passed to 
    #  start-stop-daemon.

    OPERATION=$1; shift
    DAEMON=$1; shift
    case $OPERATION in
	"start")
	    set +e
	    if [ "$SSD" = "1" ]; then
		CMD="start-stop-daemon --start --quiet --exec $DAEMON -- $@"
	    else
		CMD="$DAEMON $@"
	    fi
	    $CMD
	    if [ $? != "0" ]; then
		echo -n '(bg)'
		# We try again for 11 minutes until giving up in despair.
		# This is necessary for cfexecd which has a 1-minute lock
		# and for cfenvd with a 10-minute lock.
		(
		    # Close file descriptors
		    exec 0<&- 1<&- 2<&-
		    for try in 1 2 3 4 5 6 7 8 9 10 11; do
			sleep 60
			$CMD && exit 0
		    done
		    exit 1
		) &
	    fi
	    set -e
	    ;;
	"stop")
	    if [ "$SSD" = "1" ]; then
		start-stop-daemon --stop --quiet --oknodo --exec "$DAEMON" "$@"
	    else
		killall "$DAEMON" || true
	    fi
	    ;;
	"*")
	    echo 'Invalid <op> to ctrl_daemon. Must be "start" or "stop".' >&2
	    ;;
    esac
}


run_cfservd_p () {
    test -e /etc/cfengine/cfservd.conf
}


case "$1" in
  start)
	echo -n "Starting cfengine2:"
	echo -n " cfenvd"; ctrl_daemon start $CFENVD
	echo -n " cfexecd"; ctrl_daemon start $CFEXECD
	run_cfservd_p && { echo -n " cfservd"; ctrl_daemon start $CFSERVD; }
	echo "."
	;;

  stop)
	echo -n "Stopping cfengine2:"
	run_cfservd_p && { echo -n " cfservd"; ctrl_daemon stop $CFSERVD; }
	echo -n " cfexecd"; ctrl_daemon stop $CFEXECD
	echo -n " cfenvd"; ctrl_daemon stop $CFENVD
	echo "."
	;;

  reload|force-reload)
	;;

  restart)
	echo "Restarting cfengine2:"
	$0 stop
	sleep 1
	$0 start
	;;

  *)
	N=/etc/init.d/cfengine2
	# echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
	echo "Usage: $N {start|stop|restart|force-reload}" >&2
	exit 1
	;;
esac

exit 0