#! /bin/sh
#
### BEGIN INIT INFO
# Provides:		batv-milter
# Required-Start:	$remote_fs $named $network $time
# Required-Stop:	$remote_fs $named $network $time
# Default-Start:	2 3 4 5
# Default-Stop:		0 1 6
# Short-Description:	Start the BATV Milter daemon
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/batv-milter
NAME=batv-milter
DESC="BATV Milter"
RUNDIR=/var/run/$NAME
USER=batv-milter
GROUP=batv-milter
CONFIG=/etc/batv-milter.conf
DAEMON_OPTS=
INSTANCES=

test -x $DAEMON || exit 0

# Include batv-milter defaults if available
if [ -f /etc/default/batv-milter ]
then
	. /etc/default/batv-milter
fi

DAEMON_OPTS="--daemon yes --user $USER --group $GROUP $DAEMON_OPTS"

start() {
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	# Create the run directory if it doesn't exist
	if [ ! -d $RUNDIR ]
	then
		install -o $USER -g $GROUP -m 2755 -d $RUNDIR || return 2
	fi
	PIDFILE=$RUNDIR/$1.pid
 	start-stop-daemon --start --quiet --pidfile $PIDFILE --user $USER --name $NAME --startas $DAEMON --test > /dev/null || return 1
	start-stop-daemon --start --quiet --pidfile $PIDFILE --user $USER --name $NAME --startas $DAEMON -- --config $CONFIG --pid-file $PIDFILE $DAEMON_OPTS || return 2
}

stop() {
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	PIDFILE=$RUNDIR/$1.pid
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME --user $USER
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	# In case PID file isn't properly deleted:
	rm -f $PIDFILE
	return "$RETVAL"
}

start_multi () {
	for instance
	do
		CONFIG=/etc/batv-milter-$instance.conf
		start $instance || return $?
		echo -n "$instance "
	done
}

command=$1
shift

case "$command" in
  start)
	echo -n "Starting $DESC: "
	if [ $# -eq 0 ] && [ "$INSTANCES" = "" ]
	then
		# Normal operation - start the single default instance
		# (The config file is specified by the $CONFIG variable, which
		# defaults to /etc/batv-milter.conf and can be overridden in
		# /etc/default/batv-milter.)
		start batv-milter || exit $?
		echo -n "batv-milter"
	elif [ $# -eq 0 ]
	then
		# Start the instances specified in the $INSTANCES variable
		start_multi $INSTANCES || exit $?
	else
		# Start the instances specified on the command line
		start_multi "$@" || exit $?
	fi
	echo "."
	;;
  stop)
	echo -n "Stopping $DESC: "
	if [ $# -eq 0 ]
	then
		# Stop all running instances
		for pidfile in $RUNDIR/*.pid
		do
			if [ -e $pidfile ]
			then
				instance=`basename $pidfile .pid`
				stop $instance
				echo -n "$instance "
			fi
		done
	else
		# Stop the instances specified on the command line
		for instance
		do
			stop $instance
			echo -n "$instance "
		done
	fi
	echo "."
	;;
  restart|force-reload)
	$0 stop "$@"
	$0 start "$@" || exit $?
	;;
  *)
	echo "Usage: $0 {start|stop|restart|force-reload}" >&2
	exit 1
	;;
esac

exit 0