#!/bin/sh
### BEGIN INIT INFO
# Provides: kolab-saslauthd
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Required-Start: $remote_fs $local_fs $network
# Required-Stop: $remote_fs $local_fs $network
# Short-Description: Start/Stop the Kolab SASL authentication daemon
# Description:      The Kolab saslauthd is a server process which handles \
#              authentication requests on behalf of the cyrus-sasl library.
### END INIT INFO

if [ -d "/run" ]; then
    rundir="/run"
else
    rundir="/var/run"
fi

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="The Kolab saslauthd is a server process which handles authentication requests on behalf of the cyrus-sasl library." # Introduce a short description here
NAME=kolab-saslauthd				# Introduce the short server's name here
DAEMON=/usr/sbin/kolab-saslauthd	# Introduce the server's location here
DAEMON_ARGS="--fork -l warning"	# Arguments to run the daemon with
PIDFILE=${rundir}/$NAME/$NAME.pid
LOCKFILE=${rundir}/lock/$NAME
SCRIPTNAME=/etc/init.d/$NAME
DEFAULTSFILE=/etc/default/$NAME
SOCKETDIR=${rundir}/saslauthd
USER=kolab
GROUP=kolab-n

# Read configuration variable file if it is present
[ -r $DEFAULTSFILE ] && . $DEFAULTSFILE

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

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

#
# 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
        # If the daemon is not enabled, give the user a warning and stop.
	if [ "$START" != "yes" ]; then
			log_warning_msg "To enable $NAME, edit $DEFAULTSFILE and set START=yes"
			return 0
	fi

	# Make sure the pid directory is there
	if [ ! -d ${rundir}/$NAME ]; then
	  mkdir ${rundir}/$NAME
	fi
	chown $USER:$GROUP ${rundir}/$NAME

	# Make sure the socket directory is there
	if [ ! -d $SOCKETDIR ]; then
	  mkdir $SOCKETDIR
	fi
	chown $USER:$GROUP $SOCKETDIR
	chmod 0755 $SOCKETDIR

	start-stop-daemon \
		--start \
		--quiet \
		--pidfile $PIDFILE \
		--startas $DAEMON \
		--test > /dev/null \
		|| return 1
	start-stop-daemon \
		--start \
		--quiet \
		--pidfile $PIDFILE \
		--startas $DAEMON \
		-- $FLAGS $DAEMON_ARGS \
		|| return 2
	# Add code here, if necessary, that waits for the process to be ready
	# to handle requests from services started subsequently which depend
	# on this one.  As a last resort, sleep for some time.
    if [ -d "$(dirname $LOCKFILE)" ]; then
        touch $LOCKFILE
    fi
}

#
# 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 \
		  --user $USER \
		  --startas $DAEMON \
		  --pidfile $PIDFILE
	RETVAL="$?"
	[ "$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.
	# If the above conditions are not satisfied then add some other code
	# that waits for the process to drop all resources that could be
	# needed by services started subsequently.  A last resort is to
	# sleep for some time.
	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
	[ "$?" = 2 ] && return 2
	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE
	rm -f $LOCKFILE
	return "$RETVAL"
}

case "$1" in
  start)
    [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC " "$NAME"
    do_start
    case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
  ;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  restart|force-reload)
	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
	;;
  *)
	#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
	echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac

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