#!/bin/bash
#
# named           This shell script takes care of starting and stopping
#                 named (BIND DNS server).
#
# chkconfig: - 55 45
# description: named (BIND) is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
# probe: true

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 0

[ -f /etc/sysconfig/named ] && . /etc/sysconfig/named

[ -f /usr/sbin/named ] || exit 0

bind_chroot=$ROOTDIR
bind_user=named

function setup_chroot
{
  oldumask=$(umask)
  umask 022
  test -d $bind_chroot || exit 0
  chown root.root $bind_chroot
  pushd $bind_chroot > /dev/null
  mkdir -p dev etc var/cache/bind var/run/bind/run var/run/named
  test -c dev/null || mknod -m 666 dev/null c 1 3
  test -c dev/random || mknod -m 666 dev/random c 1 8
  chown ${bind_user}.${bind_user} var/cache/bind var/run var/run/bind/run var/run/named
  cp -p /etc/localtime etc
  cp -a /etc/bind etc
  if [ -f /etc/rndc.key ]; then
      keyfile=etc/rndc.key
      cp -p /etc/rndc.key "$keyfile"
  else
      keyfile=etc/bind/rndc.key
  fi
  # etc/bind dir is writable for .jnl files
  chgrp "$bind_user" etc/bind etc/bind/*.key "$keyfile"
  chmod 640 etc/bind/*.key "$keyfile"
  popd > /dev/null
  umask $oldumask
}

RETVAL=0
prog="named"

start() {
        # Start daemons.
	if [ -n "`/sbin/pidof named`" ]; then
		echo -n $"$prog: already running"
		return 1
	fi
        echo -n $"Starting $prog: "
	if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
	        setup_chroot
		OPTIONS="${OPTIONS} -t ${ROOTDIR}"
	fi
	# Since named doesn't return proper exit codes at the moment
	# (won't be fixed before 9.2), we can't use daemon here - emulate
	# its functionality
	base=$prog
        named -u named ${OPTIONS}
	RETVAL=$?
	usleep 100000
	if [ -z "`/sbin/pidof named`" ]; then
		# The child processes have died after fork()ing, e.g.
		# because of a broken config file
		RETVAL=1
	fi
	[ $RETVAL -ne 0 ] && failure $"$base startup"
 	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/named && success $"$base startup"
	echo
	return $RETVAL
}
stop() {
        # Stop daemons.
        echo -n $"Stopping $prog: "
        killproc named
	RETVAL=$?
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/named
        echo
	return $RETVAL
}
rhstatus() {
	/usr/sbin/rndc status
	return $?
}	
restart() {
	stop
	start
}	
reload() {
        setup_chroot # We do this to catch config changes. 
	/usr/sbin/rndc reload >/dev/null 2>&1 || /usr/bin/killall -HUP named
	return $?
}
probe() {
	# named knows how to reload intelligently; we don't want linuxconf
	# to offer to restart every time
	/usr/sbin/rndc reload >/dev/null 2>&1 || echo start
	return $?
}  

# See how we were called.
case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	status)
		rhstatus
		;;
	restart)
		restart
		;;
	condrestart)
		[ -f /var/lock/subsys/named ] && restart
		;;
	reload)
		reload
		;;
	probe)
		probe
		;;
	*)
        	echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|probe}"
		exit 1
esac

exit $?