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File cups.init of Package cups.2579

#! /bin/bash
#
# Copyright (C) 1995-2001 SuSE GmbH Nuernberg, Germany.
# Copyright (C) 2002 SuSE Linux AG, Nuernberg, Germany.
# Copyright (C) 2002-2008 Klaus Singvogel, SUSE / Novell Inc.
# Copyright (C) 2010-2013 Johannes Meixner, SUSE LINUX Products GmbH
#
# Author: Kurt Garloff, 2000
#	  Klaus Singvogel, 2002-2008
#	  Johannes Meixner, 2010-2013
#
# /etc/init.d/cups
#   and its symbolic link
# /usr/sbin/rccups
#
# System startup script for the CUPS printer daemon
#
### BEGIN INIT INFO
# Provides:            cupsd
# Required-Start:      $local_fs $remote_fs $syslog
# Required-Stop:       $remote_fs $syslog
# Should-Start:        dbus $named $portmap ptal slpd printbill
# Should-Stop:         $portmap
# Default-Start:       2 3 5
# Default-Stop:        0 1 6
# Short-Description:   CUPS printer daemon
# Description:         Start CUPS to provide spooling and printing files
#	functionality for local and remote printers. Also required if
#	printers are broadcasted ("Browsing") by remote CUPS servers.
### END INIT INFO

# 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 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.

# Source SuSE config, only if exists with size greater zero
test -s /etc/rc.config && . /etc/rc.config

# 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     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num><num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
if test -s /etc/rc.status
then . /etc/rc.status
else exit 1
fi
# Reset status of this service:
rc_reset

CUPSD_BIN=/usr/sbin/cupsd
test -x $CUPSD_BIN || exit 5
# Get CUPSD_OPTIONS
test -s /etc/sysconfig/cups && . /etc/sysconfig/cups

# See "GETTING DEBUG LOGGING FROM CUPS" in /usr/share/doc/packages/cups/INSTALL.txt
# export CUPS_DEBUG_LOG="$(mktemp /tmp/cups.debug.XXXXXXXXXX)"
# export CUPS_DEBUG_LEVEL="1"
# export CUPS_DEBUG_FILTER=""

# Enforce default umask to avoid problems with wrong file permissions
# for example of /etc/printcap (see Novell/Suse Bugzilla bnc#31567).
umask 022

case "$1" in
    start)
	echo -n "Starting cupsd"
	## Start daemon with startproc(8).
	## If this fails the echo return value is set appropriate.
	# NOTE: startproc return 0, even if service is 
	# already running to match LSB spec.
	startproc $CUPSD_BIN $CUPSD_OPTIONS
	# Remember status and be verbose:
	rc_status -v
	;;
    stop)
	echo -n "Shutting down cupsd"
	## Stop daemon with killproc(8).
	## If this fails the echo return value is set appropriate.
	# NOTE: killproc with explicite signal specified
	# like "killproc -TERM" sends only SIGTERM and exits
	# to match LSB spec. (see Novell/Suse Bugzilla bnc#595796).
	# Without explicite signal the default signal SIGTERM is sent
	# and afterwards killproc waits by default only up to 5 seconds
	# before killproc sends SIGKILL if cupsd has not yet terminated.
	# Wait at most 10 seconds until the cupsd does actually no longer run
	# so that the cupsd should have sufficient time for its clean up:
	killproc -t 10 $CUPSD_BIN
	# Remember status and be verbose:
	rc_status -v
	;;
    try-restart)
	## Stop the service and if this succeeds (i.e. the 
	## service was running before), start it again.
	## Note: try-restart is not (yet) part of LSB (as of 0.7.5)
	$0 status >/dev/null && $0 restart
	# 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
	# The above waits at most 10 seconds until the cupsd does actually no longer run
	# otherwise "startproc $CUPSD_BIN" would not start a new cupsd
	# (see Novell/Suse Bugzilla bnc#622058).
	# Start a new cupsd:
	$0 start
	# Remember status and be quiet:
	rc_status
	;;
    force-reload)
	## Signal the daemon to reload its config.
	## Most daemons do this on signal 1 (SIGHUP).
	## If it does not support it, restart.
	if ps -C cupsd -o user | grep -q '^root$'
	then echo -n "Reload service cupsd"
	     killproc -HUP $CUPSD_BIN
	     rc_status -v
	else $0 restart
	fi
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signalling, do nothing.
	# If it supports signalling:
	if ps -C cupsd -o user | grep -q '^root$'
	then echo -n "Reload service cupsd"
	     killproc -HUP $CUPSD_BIN
	     rc_status -v
	else echo -n '"reload" not possible (cupsd does not run as user root) use "restart" instead'
	     rc_status -s
	fi
	;;
    status)
	echo -n "Checking for cupsd: "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.
	# Status has a slightly different for the status command:
	# 0 - service running
	# 1 - service dead, but /var/run/ pid file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running
	# NOTE: checkproc returns LSB compliant status values.
	checkproc $CUPSD_BIN
	rc_status -v
	;;
    probe)
	## Optional: Probe for the necessity of a reload,
	## give out the argument which is required for a reload.
	rc_failed 3
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit

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