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#! /bin/sh
# Copyright (c) 2004-2008 SUSE LINUX Products GmbH, Nuernberg, Germany.
# All rights reserved.
#
# This program is free software; you can 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 of
# the License, or (at your option) any later version. 
#
# This program 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
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# Author: Marius Tomaschewski
# Please send feedback to http://www.suse.de/feedback/
#
# /etc/init.d/ulogd
#   and its symbolic link
# /(usr/)sbin/rculogd
#
# ulogd - the userspace logging daemon for netfilter ULOG targets
#
### BEGIN INIT INFO
# Provides:          ulogd
# Required-Start:    $local_fs $remote_fs
# Should-Start:      mysql postgres $syslog
# Required-Stop:     $local_fs $remote_fs
# Should-Stop:       mysql postgres $syslog
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: netfilter ULOG target logging daemon
# Description:       Start the netfilter ULOG target logging daemon
### END INIT INFO

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

# Check for existence of needed config file
ULOGD_CONFIG=/etc/ulogd.conf
test -r $ULOGD_CONFIG || {
    echo "$ULOGD_CONFIG not existing";
    if [ "$1" = "stop" ]; then exit 0; else exit 6; fi;
}

# start time timestamp file
ULOGD_LOCK=/var/lock/subsys/ulogd

# 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
#      rc_splash arg    sets the boot splash screen to arg (if active)
. /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.

case "$1" in
    start)
	echo -n "Starting ulogd "
	## Start daemon with startproc(8). If this fails
	## the return value is set appropriately by startproc.
	umask 0027
	startproc $ULOGD_BIN -d
	touch $ULOGD_LOCK

# Remember status and be verbose
	rc_status -v
	;;
    stop)
	echo -n "Shutting down ulogd "
	## Stop daemon with killproc(8) and if this fails
	## killproc sets the return value according to LSB.

killproc -TERM $ULOGD_BIN
	rm -f $ULOGD_LOCK

# 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)
	## 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
	;;
    force-reload)
	## Signal the daemon to reload its config. Most daemons
	## do this on signal 1 (SIGHUP).
	## If it does not support it, restart.

echo -n "Reload service ulogd "
	## if it supports it:
	killproc -HUP $ULOGD_BIN
	touch $ULOGD_LOCK
	rc_status -v

## Otherwise:
	#$0 try-restart
	#rc_status
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signaling, do nothing (!)

# If it supports signaling:
	echo -n "Reload service ulogd "
	killproc -HUP $ULOGD_BIN
	touch $ULOGD_LOCK
	rc_status -v
	
	## Otherwise if it does not support reload:
	#rc_failed 3
	#rc_status -v
	;;
    status)
	echo -n "Checking for service ulogd "
	## 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.
	checkproc $ULOGD_BIN
	# NOTE: rc_status knows that we called this init script with
	# "status" option and adapts its messages accordingly.
	rc_status -v
	;;
    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)

# note: reload reopens the log files only
	test $ULOGD_CONFIG -nt $ULOGD_LOCK && echo restart
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit