#! /bin/sh
### BEGIN INIT INFO
# Provides:          dovecot
# Required-Start:    $local_fs $remote_fs $network $syslog $time
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Should-Start:      postgresql mysql slapd winbind nslcd
# Should-Stop:       postgresql mysql slapd winbind nslcd
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Dovecot init script
# Description:       Init script for dovecot services
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="IMAP/POP3 mail server"
NAME=dovecot
DAEMON=/usr/sbin/dovecot
DAEMON_ARGS=""
SCRIPTNAME=/etc/init.d/$NAME
CONF=/etc/dovecot/${NAME}.conf

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Exit if the configuration file doesn't exist
[ -f "$CONF" ] || exit 0

# Exit if explicitly told to
[ "$ENABLED" != "0" ] || exit 0

# Allow core dumps if requested
[ "$ALLOW_COREDUMPS" != "1" ] || ulimit -c unlimited

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

# conf file readable?
if [ ! -r ${CONF} ]; then
	log_daemon_msg "${CONF}: not readable" "$NAME" && log_end_msg 1
	exit 1
fi

# determine the location of the PID file
# overide by setting base_dir in conf file or PIDBASE in /etc/defaults/$NAME
PIDBASE=${PIDBASE:-`doveconf -n -c ${CONF} -h base_dir`}
PIDFILE=${PIDBASE:-/var/run/dovecot}/master.pid

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#	0 if daemon has been started
	#	1 if daemon was already running
	#	2 if daemon could not be started
	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test -- -c ${CONF} > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- -c ${CONF} \
		$DAEMON_ARGS \
		|| return 2
}

#
# Function that stops the daemon/service
#
do_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
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name ${DAEMON##*/}
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	# Wait for children to finish too if this is a daemon that forks
	# and if the daemon is only ever run from this initscript.
	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --pidfile $PIDFILE --name ${DAEMON##*/}
	[ "$?" = 2 ] && return 2
	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE
	return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
	start-stop-daemon --stop --signal HUP --quiet --pidfile $PIDFILE --name $NAME
	return 0
}

do_status() {
	status_of_proc -p $PIDFILE $DAEMON $NAME
}


case "$1" in
  start)
	log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  reload|force-reload)
	log_daemon_msg "Reloading $DESC" "$NAME"
	do_reload
	log_end_msg $?
	;;
  restart)
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
		# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  status)
	do_status && exit 0 || exit $?
	;;
  condrestart)
	do_status >/dev/null 2>&1 && $0 restart || :
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload|status|condrestart}" >&2
	exit 3
	;;
esac
