debian/init - vendor/opensource/dnsmasq - Git at Google

 #!/bin/sh
 ### BEGIN INIT INFO
 # Provides:       dnsmasq
 # Required-Start: $network $remote_fs $syslog
 # Required-Stop:  $network $remote_fs $syslog
 # Default-Start:  2 3 4 5
 # Default-Stop:   0 1 6
 # Description:    DHCP and DNS server
 ### END INIT INFO

 set +e   # Don't exit on error status

 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
 DAEMON=/usr/sbin/dnsmasq
 NAME=dnsmasq
 DESC="DNS forwarder and DHCP server"

 # Most configuration options in /etc/default/dnsmasq are deprecated
 # but still honoured.
 ENABLED=1
 if [ -r /etc/default/$NAME ]; then
 	. /etc/default/$NAME
 fi

 # Get the system locale, so that messages are in the correct language, and the
 # charset for IDN is correct
 if [ -r /etc/default/locale ]; then
         . /etc/default/locale
         export LANG
 fi

 # /etc/dnsmasq.d/README is a non-conffile installed by the dnsmasq package.
 # Should the dnsmasq package be removed, the following test ensures that
 # the daemon is no longer started, even if the dnsmasq-base package is
 # still in place.
 test -e /etc/dnsmasq.d/README || exit 0

 test -x $DAEMON || exit 0

 # Provide skeleton LSB log functions for backports which don't have LSB functions.
 if [ -f /lib/lsb/init-functions ]; then
          . /lib/lsb/init-functions
 else
          log_warning_msg () {
             echo "${@}."
          }

          log_success_msg () {
             echo "${@}."
          }

          log_daemon_msg () {
             echo -n "${1}: $2"
          }

 	 log_end_msg () {
             if [ $1 -eq 0 ]; then
               echo "."
             elif [ $1 -eq 255 ]; then
               /bin/echo -e " (warning)."
             else
               /bin/echo -e " failed!"
             fi
          }
 fi

 # RESOLV_CONF:
 # If the resolvconf package is installed then use the resolv conf file
 # that it provides as the default.  Otherwise use /etc/resolv.conf as
 # the default.
 #
 # If IGNORE_RESOLVCONF is set in /etc/default/dnsmasq or an explicit
 # filename is set there then this inhibits the use of the resolvconf-provided
 # information.
 #
 # Note that if the resolvconf package is installed it is not possible to
 # override it just by configuration in /etc/dnsmasq.conf, it is necessary
 # to set IGNORE_RESOLVCONF=yes in /etc/default/dnsmasq.

 if [ ! "$RESOLV_CONF" ] &&
    [ "$IGNORE_RESOLVCONF" != "yes" ] &&
    [ -x /sbin/resolvconf ]
 then
 	RESOLV_CONF=/var/run/dnsmasq/resolv.conf
 fi

 for INTERFACE in $DNSMASQ_INTERFACE; do
 	DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -i $INTERFACE"
 done

 for INTERFACE in $DNSMASQ_EXCEPT; do
 	DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -I $INTERFACE"
 done

 if [ ! "$DNSMASQ_USER" ]; then
    DNSMASQ_USER="dnsmasq"
 fi

 # This tells dnsmasq to ignore DNS requests that don't come from a local network.
 # It's automatically ignored if  --interface --except-interface, --listen-address
 # or --auth-server exist in the configuration, so for most installations, it will
 # have no effect, but for otherwise-unconfigured installations, it stops dnsmasq
 # from being vulnerable to DNS-reflection attacks.

 DNSMASQ_OPTS="$DNSMASQ_OPTS --local-service"

 # If the dns-root-data package is installed, then the trust anchors will be
 # available in $ROOT_DS, in BIND zone-file format. Reformat as dnsmasq
 # --trust-anchor options.

 ROOT_DS="/usr/share/dns/root.ds"

 if [ -f $ROOT_DS ]; then
    DNSMASQ_OPTS="$DNSMASQ_OPTS `sed -e s/". IN DS "/--trust-anchor=.,/ -e s/" "/,/g $ROOT_DS | tr '\n' ' '`"
 fi

 start()
 {
         # Return
 	#   0 if daemon has been started
 	#   1 if daemon was already running
 	#   2 if daemon could not be started

         # /var/run may be volatile, so we need to ensure that
         # /var/run/dnsmasq exists here as well as in postinst
         if [ ! -d /var/run/dnsmasq ]; then
            mkdir /var/run/dnsmasq || return 2
            chown dnsmasq:nogroup /var/run/dnsmasq || return 2
         fi

 	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test > /dev/null || return 1
 	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON -- \
 		-x /var/run/dnsmasq/$NAME.pid \
 	        ${MAILHOSTNAME:+ -m $MAILHOSTNAME} \
 		${MAILTARGET:+ -t $MAILTARGET} \
 		${DNSMASQ_USER:+ -u $DNSMASQ_USER} \
 		${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \
 		${DHCP_LEASE:+ -l $DHCP_LEASE} \
 		${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \
 		${RESOLV_CONF:+ -r $RESOLV_CONF} \
 		${CACHESIZE:+ -c $CACHESIZE} \
 	        ${CONFIG_DIR:+ -7 $CONFIG_DIR} \
 		${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} \
 		|| return 2
 }

 start_resolvconf()
 {
 # If interface "lo" is explicitly disabled in /etc/default/dnsmasq
 # Then dnsmasq won't be providing local DNS, so don't add it to
 # the resolvconf server set.
 	for interface in $DNSMASQ_EXCEPT
 	do
 		[ $interface = lo ] && return
 	done

         if [ -x /sbin/resolvconf ] ; then
 		echo "nameserver 127.0.0.1" | /sbin/resolvconf -a lo.$NAME
 	fi
 	return 0
 }

 stop()
 {
 	# Return
 	#   0 if daemon has been stopped
 	#   1 if daemon was already stopped
 	#   2 if daemon could not be stopped
 	#   other if a failure occurred
 	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile /var/run/dnsmasq/$NAME.pid --name $NAME
 }

 stop_resolvconf()
 {
 	if [ -x /sbin/resolvconf ] ; then
 		/sbin/resolvconf -d lo.$NAME
 	fi
 	return 0
 }

 status()
 {
 	# Return
 	#   0 if daemon is running
 	#   1 if daemon is dead and pid file exists
 	#   3 if daemon is not running
 	#   4 if daemon status is unknown
 	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test > /dev/null
 	case "$?" in
 		0) [ -e "/var/run/dnsmasq/$NAME.pid" ] && return 1 ; return 3 ;;
 		1) return 0 ;;
 		*) return 4 ;;
 	esac
 }

 case "$1" in
   start)
 	test "$ENABLED" != "0" || exit 0
 	log_daemon_msg "Starting $DESC" "$NAME"
 	start
 	case "$?" in
 		0)
 			log_end_msg 0
 			start_resolvconf
 			exit 0
 			;;
 		1)
 			log_success_msg "(already running)"
 			exit 0
 			;;
 		*)
 			log_end_msg 1
 			exit 1
 			;;
 	esac
 	;;
   stop)
 	stop_resolvconf
 	if [ "$ENABLED" != "0" ]; then
              log_daemon_msg "Stopping $DESC" "$NAME"
 	fi
 	stop
         RETVAL="$?"
 	if [ "$ENABLED" = "0" ]; then
 	    case "$RETVAL" in
 	       0) log_daemon_msg "Stopping $DESC" "$NAME"; log_end_msg 0 ;;
             esac
 	    exit 0
 	fi
 	case "$RETVAL" in
 		0) log_end_msg 0 ; exit 0 ;;
 		1) log_warning_msg "(not running)" ; exit 0 ;;
 		*) log_end_msg 1; exit 1 ;;
 	esac
 	;;
   restart|force-reload)
 	test "$ENABLED" != "0" || exit 1
 	$DAEMON --test ${CONFIG_DIR:+ -7 $CONFIG_DIR} ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} >/dev/null 2>&1
 	if [ $? -ne 0 ]; then
 	    NAME="configuration syntax check"
 	    RETVAL="2"
 	else
 	    stop_resolvconf
 	    stop
 	    RETVAL="$?"
         fi
 	log_daemon_msg "Restarting $DESC" "$NAME"
 	case "$RETVAL" in
 		0|1)
 		        sleep 2
 			start
 			case "$?" in
 				0)
 					log_end_msg 0
 					start_resolvconf
 					exit 0
 					;;
 			        *)
 					log_end_msg 1
 					exit 1
 					;;
 			esac
 			;;
 		*)
 			log_end_msg 1
 			exit 1
 			;;
 	esac
 	;;
   status)
 	log_daemon_msg "Checking $DESC" "$NAME"
 	status
 	case "$?" in
 		0) log_success_msg "(running)" ; exit 0 ;;
 		1) log_success_msg "(dead, pid file exists)" ; exit 1 ;;
 		3) log_success_msg "(not running)" ; exit 3 ;;
 		*) log_success_msg "(unknown)" ; exit 4 ;;
 	esac
 	;;
   dump-stats)
         kill -s USR1 `cat /var/run/dnsmasq/$NAME.pid`
 	;;
   systemd-start-resolvconf)
 	start_resolvconf
 	;;
   systemd-stop-resolvconf)
 	stop_resolvconf
 	;;
   systemd-exec)
 # /var/run may be volatile, so we need to ensure that
         # /var/run/dnsmasq exists here as well as in postinst
         if [ ! -d /var/run/dnsmasq ]; then
            mkdir /var/run/dnsmasq || return 2
            chown dnsmasq:nogroup /var/run/dnsmasq || return 2
         fi
 # Enable DBus by default because we use DBus activation with systemd.
 	exec $DAEMON --keep-in-foreground --enable-dbus \
 	    -x /var/run/dnsmasq/$NAME.pid \
 	    ${MAILHOSTNAME:+ -m $MAILHOSTNAME} \
 	    ${MAILTARGET:+ -t $MAILTARGET} \
 	    ${DNSMASQ_USER:+ -u $DNSMASQ_USER} \
 	    ${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \
 	    ${DHCP_LEASE:+ -l $DHCP_LEASE} \
 	    ${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \
 	    ${RESOLV_CONF:+ -r $RESOLV_CONF} \
 	    ${CACHESIZE:+ -c $CACHESIZE} \
 	    ${CONFIG_DIR:+ -7 $CONFIG_DIR} \
 	    ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS}
 	;;
   *)
 	echo "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload|dump-stats|status}" >&2
 	exit 3
 	;;
 esac

 exit 0
	#!/bin/sh
	### BEGIN INIT INFO
	# Provides: dnsmasq
	# Required-Start: $network $remote_fs $syslog
	# Required-Stop: $network $remote_fs $syslog
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Description: DHCP and DNS server
	### END INIT INFO

	set +e # Don't exit on error status

	PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
	DAEMON=/usr/sbin/dnsmasq
	NAME=dnsmasq
	DESC="DNS forwarder and DHCP server"

	# Most configuration options in /etc/default/dnsmasq are deprecated
	# but still honoured.
	ENABLED=1
	if [ -r /etc/default/$NAME ]; then
	. /etc/default/$NAME
	fi

	# Get the system locale, so that messages are in the correct language, and the
	# charset for IDN is correct
	if [ -r /etc/default/locale ]; then
	. /etc/default/locale
	export LANG
	fi

	# /etc/dnsmasq.d/README is a non-conffile installed by the dnsmasq package.
	# Should the dnsmasq package be removed, the following test ensures that
	# the daemon is no longer started, even if the dnsmasq-base package is
	# still in place.
	test -e /etc/dnsmasq.d/README \|\| exit 0

	test -x $DAEMON \|\| exit 0

	# Provide skeleton LSB log functions for backports which don't have LSB functions.
	if [ -f /lib/lsb/init-functions ]; then
	. /lib/lsb/init-functions
	else
	log_warning_msg () {
	echo "${@}."
	}

	log_success_msg () {
	echo "${@}."
	}

	log_daemon_msg () {
	echo -n "${1}: $2"
	}

	log_end_msg () {
	if [ $1 -eq 0 ]; then
	echo "."
	elif [ $1 -eq 255 ]; then
	/bin/echo -e " (warning)."
	else
	/bin/echo -e " failed!"
	fi
	}
	fi

	# RESOLV_CONF:
	# If the resolvconf package is installed then use the resolv conf file
	# that it provides as the default. Otherwise use /etc/resolv.conf as
	# the default.
	#
	# If IGNORE_RESOLVCONF is set in /etc/default/dnsmasq or an explicit
	# filename is set there then this inhibits the use of the resolvconf-provided
	# information.
	#
	# Note that if the resolvconf package is installed it is not possible to
	# override it just by configuration in /etc/dnsmasq.conf, it is necessary
	# to set IGNORE_RESOLVCONF=yes in /etc/default/dnsmasq.

	if [ ! "$RESOLV_CONF" ] &&
	[ "$IGNORE_RESOLVCONF" != "yes" ] &&
	[ -x /sbin/resolvconf ]
	then
	RESOLV_CONF=/var/run/dnsmasq/resolv.conf
	fi

	for INTERFACE in $DNSMASQ_INTERFACE; do
	DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -i $INTERFACE"
	done

	for INTERFACE in $DNSMASQ_EXCEPT; do
	DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -I $INTERFACE"
	done

	if [ ! "$DNSMASQ_USER" ]; then
	DNSMASQ_USER="dnsmasq"
	fi

	# This tells dnsmasq to ignore DNS requests that don't come from a local network.
	# It's automatically ignored if --interface --except-interface, --listen-address
	# or --auth-server exist in the configuration, so for most installations, it will
	# have no effect, but for otherwise-unconfigured installations, it stops dnsmasq
	# from being vulnerable to DNS-reflection attacks.

	DNSMASQ_OPTS="$DNSMASQ_OPTS --local-service"

	# If the dns-root-data package is installed, then the trust anchors will be
	# available in $ROOT_DS, in BIND zone-file format. Reformat as dnsmasq
	# --trust-anchor options.

	ROOT_DS="/usr/share/dns/root.ds"

	if [ -f $ROOT_DS ]; then
	DNSMASQ_OPTS="$DNSMASQ_OPTS `sed -e s/". IN DS "/--trust-anchor=.,/ -e s/" "/,/g $ROOT_DS \| tr '\n' ' '`"
	fi

	start()
	{
	# Return
	# 0 if daemon has been started
	# 1 if daemon was already running
	# 2 if daemon could not be started

	# /var/run may be volatile, so we need to ensure that
	# /var/run/dnsmasq exists here as well as in postinst
	if [ ! -d /var/run/dnsmasq ]; then
	mkdir /var/run/dnsmasq \|\| return 2
	chown dnsmasq:nogroup /var/run/dnsmasq \|\| return 2
	fi

	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test > /dev/null \|\| return 1
	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON -- \
	-x /var/run/dnsmasq/$NAME.pid \
	${MAILHOSTNAME:+ -m $MAILHOSTNAME} \
	${MAILTARGET:+ -t $MAILTARGET} \
	${DNSMASQ_USER:+ -u $DNSMASQ_USER} \
	${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \
	${DHCP_LEASE:+ -l $DHCP_LEASE} \
	${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \
	${RESOLV_CONF:+ -r $RESOLV_CONF} \
	${CACHESIZE:+ -c $CACHESIZE} \
	${CONFIG_DIR:+ -7 $CONFIG_DIR} \
	${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} \
	\|\| return 2
	}

	start_resolvconf()
	{
	# If interface "lo" is explicitly disabled in /etc/default/dnsmasq
	# Then dnsmasq won't be providing local DNS, so don't add it to
	# the resolvconf server set.
	for interface in $DNSMASQ_EXCEPT
	do
	[ $interface = lo ] && return
	done

	if [ -x /sbin/resolvconf ] ; then
	echo "nameserver 127.0.0.1" \| /sbin/resolvconf -a lo.$NAME
	fi
	return 0
	}

	stop()
	{
	# Return
	# 0 if daemon has been stopped
	# 1 if daemon was already stopped
	# 2 if daemon could not be stopped
	# other if a failure occurred
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile /var/run/dnsmasq/$NAME.pid --name $NAME
	}

	stop_resolvconf()
	{
	if [ -x /sbin/resolvconf ] ; then
	/sbin/resolvconf -d lo.$NAME
	fi
	return 0
	}

	status()
	{
	# Return
	# 0 if daemon is running
	# 1 if daemon is dead and pid file exists
	# 3 if daemon is not running
	# 4 if daemon status is unknown
	start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test > /dev/null
	case "$?" in
	0) [ -e "/var/run/dnsmasq/$NAME.pid" ] && return 1 ; return 3 ;;
	1) return 0 ;;
	*) return 4 ;;
	esac
	}

	case "$1" in
	start)
	test "$ENABLED" != "0" \|\| exit 0
	log_daemon_msg "Starting $DESC" "$NAME"
	start
	case "$?" in
	0)
	log_end_msg 0
	start_resolvconf
	exit 0
	;;
	1)
	log_success_msg "(already running)"
	exit 0
	;;
	*)
	log_end_msg 1
	exit 1
	;;
	esac
	;;
	stop)
	stop_resolvconf
	if [ "$ENABLED" != "0" ]; then
	log_daemon_msg "Stopping $DESC" "$NAME"
	fi
	stop
	RETVAL="$?"
	if [ "$ENABLED" = "0" ]; then
	case "$RETVAL" in
	0) log_daemon_msg "Stopping $DESC" "$NAME"; log_end_msg 0 ;;
	esac
	exit 0
	fi
	case "$RETVAL" in
	0) log_end_msg 0 ; exit 0 ;;
	1) log_warning_msg "(not running)" ; exit 0 ;;
	*) log_end_msg 1; exit 1 ;;
	esac
	;;
	restart\|force-reload)
	test "$ENABLED" != "0" \|\| exit 1
	$DAEMON --test ${CONFIG_DIR:+ -7 $CONFIG_DIR} ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} >/dev/null 2>&1
	if [ $? -ne 0 ]; then
	NAME="configuration syntax check"
	RETVAL="2"
	else
	stop_resolvconf
	stop
	RETVAL="$?"
	fi
	log_daemon_msg "Restarting $DESC" "$NAME"
	case "$RETVAL" in
	0\|1)
	sleep 2
	start
	case "$?" in
	0)
	log_end_msg 0
	start_resolvconf
	exit 0
	;;
	*)
	log_end_msg 1
	exit 1
	;;
	esac
	;;
	*)
	log_end_msg 1
	exit 1
	;;
	esac
	;;
	status)
	log_daemon_msg "Checking $DESC" "$NAME"
	status
	case "$?" in
	0) log_success_msg "(running)" ; exit 0 ;;
	1) log_success_msg "(dead, pid file exists)" ; exit 1 ;;
	3) log_success_msg "(not running)" ; exit 3 ;;
	*) log_success_msg "(unknown)" ; exit 4 ;;
	esac
	;;
	dump-stats)
	kill -s USR1 `cat /var/run/dnsmasq/$NAME.pid`
	;;
	systemd-start-resolvconf)
	start_resolvconf
	;;
	systemd-stop-resolvconf)
	stop_resolvconf
	;;
	systemd-exec)
	# /var/run may be volatile, so we need to ensure that
	# /var/run/dnsmasq exists here as well as in postinst
	if [ ! -d /var/run/dnsmasq ]; then
	mkdir /var/run/dnsmasq \|\| return 2
	chown dnsmasq:nogroup /var/run/dnsmasq \|\| return 2
	fi
	# Enable DBus by default because we use DBus activation with systemd.
	exec $DAEMON --keep-in-foreground --enable-dbus \
	-x /var/run/dnsmasq/$NAME.pid \
	${MAILHOSTNAME:+ -m $MAILHOSTNAME} \
	${MAILTARGET:+ -t $MAILTARGET} \
	${DNSMASQ_USER:+ -u $DNSMASQ_USER} \
	${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \
	${DHCP_LEASE:+ -l $DHCP_LEASE} \
	${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \
	${RESOLV_CONF:+ -r $RESOLV_CONF} \
	${CACHESIZE:+ -c $CACHESIZE} \
	${CONFIG_DIR:+ -7 $CONFIG_DIR} \
	${DNSMASQ_OPTS:+ $DNSMASQ_OPTS}
	;;
	*)
	echo "Usage: /etc/init.d/$NAME {start\|stop\|restart\|force-reload\|dump-stats\|status}" >&2
	exit 3
	;;
	esac

	exit 0