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File squid.init of Package squid (Revision 2b9a3a09bc5e0c3cec811f0749e4595f)

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#!/bin/sh
# Copyright (c) 1996, 1997, 1998 S.u.S.E. GmbH
# Copyright (c) 1998, 1999, 2000, 2001 SuSE GmbH
# Copyright (c) 2002 SuSE Linux AG
#
# Author: Frank Bodammer, Peter Poeml, Klaus Singvogel <feedback@suse.de>
#
# /etc/init.d/squid
#   and its symbolic link
# /(usr/)sbin/rcsquid
#
### BEGIN INIT INFO
# Provides:           squid
# Required-Start:     $local_fs $remote_fs $network $time
# Should-Start:       apache $named winbind 
# Required-Stop:      $local_fs $remote_fs $network $time
# Should-Stop:        apache $named winbind
# Default-Start:      3 5
# Default-Stop:       0 1 2 6
# Short-Description:  Squid web cache
# Description:        Start the Squid web cache, providing
#                     HTTP, FTP and other proxy services
### END INIT INFO
#
# Note on runlevels:
# 0 - halt/poweroff                     6 - reboot
# 1 - single user                       2 - multiuser without network exported
# 3 - multiuser w/ network (text mode)  5 - multiuser w/ network and X11 (xdm)

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

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

# Read config
. $SQUID_SYSCONFIG

SQUID_PID=/var/run/squid.pid
SQUID_CONF=/etc/squid/squid.conf
SQUID_S_T=${SQUID_SHUTDOWN_TIMEOUT:="60"}
SQUID_OPTS=${SQUID_START_OPTIONS:="-sY"}
SQUID_ULIMIT=${SQUID_DEFAULT_ULIMT:="4096"}

# determine which one is the cache_swap directory
SQUID_CACHE_DIR=$(perl -n -e \
 '/^cache_dir\s+\S+\s+(.*)\s+\d+\s+\d+\s+\d+/ && print "$1"' $SQUID_CONF)

ulimit -n "$SQUID_ULIMIT"

#IN: $SQUID_CACHE_DIR
setup_squid_cache_dir(){
  for adir in "$1" ; do
    if [ ! -d $adir/00 ]; then # create missing cache directories
      umask 027             # prevent users reading any cache data
      echo -n " ($adir)"
      $SQUID_BIN -z -F > /dev/null 2>&1
    fi
    if [ ! -d $adir/00 ]; then
      echo " - failed while creating cache_dir ! "
      rc_failed
      rc_status -v
      rc_exit
    fi
  done
  sleep 2
}

# 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

case "$1" in
    start)
	echo -n "Starting WWW-proxy squid "
	if /sbin/checkproc $SQUID_BIN ; then
	  echo -n "- Warning: squid already running ! "
	  rc_failed
	else
	  [ -e $SQUID_PID ] && echo -n "- Warning: $SQUID_PID exists ! "
	  if [ -n "$SQUID_CACHE_DIR" -a -d "$SQUID_CACHE_DIR" ]; then
	    setup_squid_cache_dir "$SQUID_CACHE_DIR"
	  fi
	fi
	startproc -l /var/log/squid/rcsquid.log $SQUID_BIN "$SQUID_OPTS"

# Remember status and be verbose
	rc_status -v
	;;
    stop)
	echo -n "Shutting down WWW-proxy squid "
	if /sbin/checkproc $SQUID_BIN ; then
	  $SQUID_BIN -k shutdown
	  sleep 2
	  if [ -e $SQUID_PID ] ; then 
	    echo -n "- wait a minute or two... "
	    i="$SQUID_S_T"
	    while [ -e $SQUID_PID ] && [ $i -gt 0 ] ; do
	      sleep 2
	      i=$[$i-1]
	      echo -n "."
	      [ $i -eq 41 ] && echo
	    done
	  fi
	  if /sbin/checkproc $SQUID_BIN ; then
	    killproc -TERM $SQUID_BIN
	    echo -n " Warning: squid killed !"
	  fi
	else
	  echo -n "- Warning: squid not running ! "
	  rc_failed 7
	fi

# Remember status and be verbose
	rc_status -v
	;;
    try-restart)
	$0 status >/dev/null && $0 restart

# Remember status and be quiet
	rc_status
	;;
    restart)
	$0 stop
	$0 start

# Remember status and be quiet
	rc_status
	;;
    force-reload)
	$0 reload

# Remember status and be quiet
	rc_status
	;;
    reload)
	echo -n "Reloading WWW-proxy squid "
	if /sbin/checkproc $SQUID_BIN ; then
	  $SQUID_BIN -k rotate
	  sleep 2
	  $SQUID_BIN -k reconfigure
	  rc_status
	else
	  echo -n "- Warning: squid not running ! "
	  rc_failed 7
	fi

# Remember status and be verbose
	rc_status -v
	;;
    status)
	echo -n "Checking for WWW-proxy squid "
	## 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.
        /sbin/checkproc $SQUID_BIN

# Remember status and be verbose
	rc_status -v
	;;
    probe)
	test $SQUID_CONF -nt $SQUID_PID && echo reload
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit

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File squid.init of Package squid (Revision 2b9a3a09bc5e0c3cec811f0749e4595f)

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