#!/bin/bash

#

# nsd           Starts the NSD Name Server Daemon

#

# chkconfig:    - 23 87

# description:  NSD is a complete implementation of an authoritative \

#               DNS name server.

#

### BEGIN INIT INFO

# Provides: nsd

# Required-Start: $local_fs $network $syslog

# Required-Stop: $local_fs $network $syslog

# Default-Start:

# Default-Stop: 0 1 2 3 4 5 6

# Short-Description: The NSD Name Server Daemon

# Description: NSD is a complete implementation of an authoritative

#              DNS name server.

### END INIT INFO

# Init script default settings

NSD_CONF="/etc/nsd/nsd.conf"

NSD_PROG="/usr/sbin/nsd"

NSD_PIDFILE="/var/run/nsd/nsd.pid"

NSD_XFRDFILE="/var/lib/nsd/xfrd.state"

NSDC_PROG="/usr/sbin/nsd-control"

NSD_USER="nsd"

NSD_PIDDIR="$(dirname ${NSD_PIDFILE})"

NSD_EXTRA_OPTS=""

# Source function library.

. /etc/rc.d/init.d/functions

[ -r /etc/sysconfig/nsd ] && . /etc/sysconfig/nsd

# Check that networking is configured.

[ "${NETWORKING}" = "no" ] && exit 0

# avoid AVC, see rhbz#989218

cd /etc/nsd

start() {

    # Source networking configuration.

    [ -r /etc/sysconfig/network ] && . /etc/sysconfig/network

    # Check that networking is up

    [ "${NETWORKING}" = "no" ] && exit 1

    # Sanity checks.

    [ -f ${NSD_CONF} ] || exit 5

    [ -x ${NSD_PROG} ] || exit 5

    # /var/run could (and should) be tmpfs

    [ -d ${NSD_PIDDIR} ] || {

	mkdir -p ${NSD_PIDDIR}

	chown ${NSD_USER}: ${NSD_PIDDIR}

    }

    if [ ! -f /etc/nsd/nsd_control.key ]; then

	echo -n $"Generating nsd control key and certificate: "

	/usr/sbin/nsd-control-setup -d /etc/nsd/ > /dev/null 2> /dev/null

	chgrp nsd /etc/nsd/nsd_*key /etc/nsd/nsd_*pem

	[ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled && \

	    [ -x /sbin/restorecon ] && /sbin/restorecon /etc/nsd/*

	echo

    fi

    echo -n $"Starting nsd:"

    daemon \

	--pidfile=${NSD_PIDFILE} \

	${NSD_PROG} -c ${NSD_CONF} \

	${NSD_EXTRA_OPTS}

    RETVAL=$?

    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/nsd

    echo

}

stop() {

    echo -n $"Stopping nsd: "

    # save state to zonefiles

    ${NSDC_PROG} -c ${NSD_CONF} write > /dev/null 2>&1

    killproc -p ${NSD_PIDFILE} ${NSD_PROG}

    RETVAL=$?

    if [ $RETVAL -eq 0 ] ; then

	rm -f /var/lock/subsys/nsd

	# ensure notifies are sent at startup

	rm -f ${NSD_XFRDFILE}

	success

    else

	failure

    fi

    echo

    return $RETVAL

}

restart() {

    stop

    start

}

RETVAL=0

# See how we were called.

case "$1" in

    start)

	start

	;;

    stop)

	stop

	;;

    restart)

	restart

	;;

    condrestart|try-restart)

	[ -f /var/lock/subsys/nsd ] && restart || :

	;;

    status)

	status -p ${NSD_PIDFILE} ${NSD_PROG}

	RETVAL=$?

	;;

    reload)

	echo -n $"Reloading nsd:"

	killproc -p ${NSD_PIDFILE} ${NSD_PROG} -HUP

	RETVAL=$?

	${NSDC_PROG} -c ${NSD_CONF} notify >/dev/null 2>&1 

	if [ $RETVAL -eq 0 ] ; then

	    success

	else

	    failure

	fi

	echo

	;;

    *)

	echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload}"

	exit 2

esac

exit $RETVAL