#! /bin/sh
# Copyright (c) 2001 Jörg Mayer
#   based on /etc/init.d/skeleton which is 
#   Copyright (c) 1995-2000 SuSE GmbH Nuernberg, Germany.
#
#
# Author: Jörg Mayer <jmayer@loplof.de>
#
# init.d/dnsmasq
#
#   and symbolic its link
#
# /usr/sbin/rcdnsmasq
#
# System startup script for the nessus backend nessusd
#
### BEGIN INIT INFO
# Provides: dnsmasq
# Required-Start: $network $remote_fs $syslog
# Required-Stop:  $remote_fs $syslog
# Default-Start:  3 5
# Default-Stop:   0 1 2 6
# Description:    This script starts your DNS caching server
### END INIT INFO

# Source SuSE config
. /etc/rc.config

# Determine the base and follow a runlevel link name.
base=${0##*/}
link=${base#*[SK][0-9][0-9]}

# Force execution if not called by a runlevel directory.
test $link = $base && START_DNSMASQ=yes
test "$START_DNSMASQ" = yes || exit 0

DNSMASQ=/usr/sbin/dnsmasq
test -x $DNSMASQ || exit 5

# 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
. /etc/rc.status

# First 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 - 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.


# Build command line:

# change this line if you want dnsmasq to serve an MX record for 
# the host it is running on. 
MAILHOSTNAME=""
# change this line if you want dns to get its upstream servers
# from somewhere other that /etc/resolv.conf 
RESOLV_CONF=""
# change this if you want dnsmasq to cache any "hostname" or
# "client-hostname" from a dhcpd's lease file
DHCP_LEASE="/var/lib/dhcp/dhcpd.leases"
DOMAIN_SUFFIX=`dnsdomainname`

OPTIONS=""

if [ ! -z "${MAILHOSTNAME}" ]; then
  OPTIONS="$OPTIONS -m $MAILHOSTNAME"
fi

if [ ! -z "${RESOLV_CONF}" ]; then
  OPTIONS="$OPTIONS -r $RESOLV_CONF"
fi

if [ ! -z "${DHCP_LEASE}" ]; then
  OPTIONS="$OPTIONS -l $DHCP_LEASE"
fi

if [ ! -z "${DOMAIN_SUFFIX}" ]; then
  OPTIONS="$OPTIONS -s $DOMAIN_SUFFIX"
fi

case "$1" in
    start)
	echo -n "Starting dnsmasq"
	## Start daemon with startproc(8). If this fails
	## the echo return value is set appropriate.

	# NOTE: startproc returns 0, even if service is 
	# already running to match LSB spec.
	startproc $DNSMASQ $OPTIONS

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

	killproc -TERM $DNSMASQ

	# 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
	$0 start

	# Remember status and be quiet
	rc_status
	;;
    force-reload)
	## Signal the daemon to reload its config.

	echo -n "Reload service dnsmasq"
	killproc -HUP $DNSMASQ
	#touch /var/run/dnsmasq.pid
	rc_status -v
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signalling, do nothing (!)

	echo -n "Reload service dnsmasq"
	killproc -HUP $DNSMASQ
	#touch /var/run/dnsmasq.pid
	rc_status -v
	;;
    status)
	echo -n "Checking for dnsmasq: "
	## 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 $DNSMASQ
	rc_status -v
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
	exit 1
	;;
esac
rc_exit

###########################################################################


## FIXME:
## The stuff from the RedHat startup script
## I keep it for the moment because I haven't checked
## the stuff with the lock/subsys/ file yet. JM

RETVAL=0

# See how we were called.
case "$1" in
  start)
        echo -n "Starting dnsmasq: "
        daemon dnsmasq $OPTIONS
	RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/dnsmasq
        ;;
  stop)
        if test "x`pidof dnsmasq`" != x; then
            echo -n "Shutting down dnsmasq: "
            killproc dnsmasq
        fi
	RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/dnsmasq /var/run/dnsmasq.pid
        ;;
  status)
	status dnsmasq
	RETVAL=$?
	;;
  restart|reload)
	$0 stop
	$0 start
	RETVAL=$?
	;;
  condrestart)
	    if test "x`/sbin/pidof dnsmasq`" != x; then
		$0 stop
		$0 start
		RETVAL=$?
	    fi
	    ;;
  *)
        echo "Usage: $0 {start|stop|restart|reload|condrestart|status}"
        exit 1
esac

exit $RETVAL