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#!/bin/sh
#
#     Template SUSE system startup script for example service/daemon NTOPNG
#     Copyright (C) 1995--2005  Kurt Garloff, SUSE / Novell Inc.
#          
#     This library is free software; you can redistribute it and/or modify it
#     under the terms of the GNU Lesser General Public License as published by
#     the Free Software Foundation; either version 2.1 of the License, or (at
#     your option) any later version.
#			      
#     This library 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
#     Lesser General Public License for more details.
#      
#     You should have received a copy of the GNU Lesser General Public
#     License along with this library; if not, write to the Free Software
#     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
#     USA.
#
# /etc/init.d/ntopng
#   and its symbolic link
# /(usr/)sbin/rcntopng
#
# Template system startup script for some example service/daemon NTOPNG
#
# LSB compatible service control script; see http://www.linuxbase.org/spec/
# 
# Note: This template uses functions rc_XXX defined in /etc/rc.status on
# UnitedLinux/SUSE/Novell based Linux distributions. If you want to base your
# script on this template and ensure that it works on non UL based LSB 
# compliant Linux distributions, you either have to provide the rc.status
# functions from UL or change the script to work without them.
# See skeleton.compat for a template that works with other distros as well.
#
### BEGIN INIT INFO
# Provides:          NTOPNG
# Required-Start:    $syslog $remote_fs $network
# Should-Start:      $time redis
# Required-Stop:     $syslog $remote_fs $network
# Should-Stop:       $null
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: NTOPNG daemon
# Description:       Start NTOPNG 
### END INIT INFO
#

# Check for missing binaries (stale symlinks should not happen)
# Note: Special treatment of stop for LSB conformance
NTOPNG_BIN=/usr/bin/ntopng
test -x $NTOPNG_BIN || { echo "$NTOPNG_BIN not installed"; 
	if [ "$1" = "stop" ]; then exit 0;
	else exit 5; fi; }

# Check for existence of needed config file and read it
NTOPNG_CONFIG=/etc/sysconfig/ntopng
test -r $NTOPNG_CONFIG || { echo "$NTOPNG_CONFIG not existing";
	if [ "$1" = "stop" ]; then exit 0;
	else exit 6; fi; }

# Read config	
. $NTOPNG_CONFIG

# Source LSB init functions
# providing start_daemon, killproc, pidofproc, 
# log_success_msg, log_failure_msg and log_warning_msg.
# This is currently not used by UnitedLinux based distributions and
# not needed for init scripts for UnitedLinux only. If it is used,
# the functions from rc.status should not be sourced or used.
#. /lib/lsb/init-functions

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     be verbose in local rc status and clear it afterwards
#      rc_status -v -r  ditto and clear both the local and overall rc status
#      rc_status -s     display "skipped" and exit with status 3
#      rc_status -u     display "unused" and exit with status 3
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num>
#      rc_reset         clear both the local and overall rc status
#      rc_exit          exit appropriate to overall rc status
#      rc_active        checks whether a service is activated by symlinks
. /etc/rc.status

# Reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0	  - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.
mkdir -p /var/run/ntopng/

case "$1" in
    start)
	echo "Starting ntopng ..."
	## Start daemon with startproc(8). If this fails
	## the return value is set appropriately by startproc.
	for IFACE in ${NTOPNG_IFACE} ; do
	echo -n "instance on interface ${IFACE} "
	/sbin/startproc -p /var/run/ntopng/ntopng-${IFACE}.pid $NTOPNG_BIN -i ${IFACE} ${NTOPNG_OPTS}
	rc_status -v
	done
	;;
    stop)
	echo "Shutting down ntopng ..."
	## Stop daemon with killproc(8) and if this fails
	## killproc sets the return value according to LSB.

/sbin/killproc -TERM $NTOPNG_BIN

# Remember status and be verbose
	rc_status -v
	;;
    try-restart|condrestart)
	## Do a restart only if the service was active before.
	## Note: try-restart is now part of LSB (as of 1.9).
	## RH has a similar command named condrestart.
	if test "$1" = "condrestart"; then
		echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
	fi
	$0 status
	if test $? = 0; then
		$0 restart
	else
		rc_reset	# Not running is not a failure.
	fi
	# Remember status and be quiet
	rc_status
	;;
    restart|force-reload|reload)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

# Remember status and be quiet
	rc_status
	;;
    status)
	echo "Checking for service ntopng ..."
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.

# Return value is slightly different for the status command:
	# 0 - service up and running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running (unused)
	# 4 - service status unknown :-(
	# 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)
	
	# NOTE: checkproc returns LSB compliant status values.
	for IFACE in ${NTOPNG_IFACE} ; do
	echo -n "instance on interface ${IFACE} "
	/sbin/checkproc -p /var/run/ntopng/ntopng-${IFACE}.pid $NTOPNG_BIN
	rc_status -v
	done
	;;
    probe)
	## Optional: Probe for the necessity of a reload, print out the
	## argument to this init script which is required for a reload.
	## Note: probe is not (yet) part of LSB (as of 1.9)
	for IFACE in ${NTOPNG_IFACE} ; do
	test /etc/sysconfig/ntopng -nt /var/run/ntopng/ntopng-${IFACE}.pid && echo reload
	done
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit