#!/bin/sh
#
# init.d script with LSB support.
#
# Copyright (c) 2007 Javier Fernandez-Sanguino <jfs@debian.org>
# Copyright (c) 2008 Axel Beckert <abe@deuxchevaux.org>
#
# This is free software; you may redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2,
# or (at your option) any later version.
#
# This is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License with
# the Debian operating system, in /usr/share/common-licenses/GPL;  if
# not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
#
### BEGIN INIT INFO
# Provides:          busybox-klogd klogd
# Required-Start:    $remote_fs
# Required-Stop:     $remote_fs
# Should-Start:      syslogd
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts klogd
# Description:       Starts the busybox klogd
### END INIT INFO

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

NAME=klogd         # Introduce the short server's name here
DAEMON=/sbin/$NAME # Introduce the server's location here
DESC="busybox' $NAME implementation" # Introduce a short description here
NEEDED_OPTS=''
DAEMON_USER='root'

test -x $DAEMON || exit 0
# systemd provides klogd functions internally
test -d /run/systemd/system && exit 0

. /lib/lsb/init-functions

# Default options, these can be overriden by the information
# at /etc/default/$NAME
KLOG_OPTS=""            # Additional options given to the server

DIETIME=10              # Time to wait for the server to die, in seconds
                        # If this value is set too low you might not
                        # let some servers to die gracefully and
                        # 'restart' will not work

STARTTIME=2             # Time to wait for the server to start, in seconds
                        # If this value is set each time the server is
                        # started (on start or restart) the script will
                        # stall to try to determine if it is running
                        # If it is not set and the server takes time
                        # to setup a pid file the log message might 
                        # be a false positive (says it did not start
                        # when it actually did)
                        
# Include defaults if available
if [ -f /etc/default/busybox-syslogd ] ; then
	. /etc/default/busybox-syslogd
fi

set -e

start_server() {
	start-stop-daemon --start --verbose --name $NAME \
		--exec $DAEMON -- $NEEDED_OPTS $KLOG_OPTS
}

stop_server() {
	start-stop-daemon --stop --verbose --name $NAME
}

running() {
    cut -d ' ' -f 1-2 /proc/[0-9]*/stat 2> /dev/null | grep -F "($NAME)"
}

case "$1" in
  start)
	log_daemon_msg "Starting $DESC " "$NAME"
        # Check if it's running first
        if running ;  then
            log_progress_msg "apparently already running"
            log_end_msg 0
            exit 0
        fi
        if start_server ; then
            # NOTE: Some servers might die some time after they start,
            # this code will detect this issue if STARTTIME is set
            # to a reasonable value
            [ -n "$STARTTIME" ] && sleep $STARTTIME # Wait some time 
            if  running ;  then
                # It's ok, the server started and is running
                log_end_msg 0
            else
                # It is not running after we did start
                log_end_msg 1
            fi
        else
            # Either we could not start it
            log_end_msg 1
        fi
	;;

  stop)
        log_daemon_msg "Stopping $DESC" "$NAME"
        if running ; then
            # Only stop the server if we see it running
			errcode=0
            stop_server || errcode=$?
            log_end_msg $errcode
        else
            # If it's not running don't do anything
            log_progress_msg "apparently not running"
            log_end_msg 0
            exit 0
        fi
        ;;

  restart|force-reload)
        log_daemon_msg "Restarting $DESC" "$NAME"
		errcode=0
        stop_server || errcode=$?
        # Wait some sensible amount, some server need this
        [ -n "$DIETIME" ] && sleep $DIETIME
        start_server || errcode=$?
        [ -n "$STARTTIME" ] && sleep $STARTTIME
        running || errcode=$?
        log_end_msg $errcode
	;;

  status)
        log_daemon_msg "Checking status of $DESC" "$NAME"
        if running ;  then
            log_progress_msg "running"
            log_end_msg 0
        else
            log_progress_msg "apparently not running"
            log_end_msg 1
            exit 1
        fi
        ;;

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

exit 0