#!/bin/sh
# /etc/cron.monthly/bind
#
# Copyright 2001,2004 Mark Ferlatte <ferlatte@cryptio.net>
# Available under the terms of the GNU General Public License version 2.0

PATH=/sbin:/bin:/usr/sbin:/usr/bin

me=$(basename $0)
# Get safe temporary file
tmpfile=$(mktemp /tmp/$me.XXXXXX)
if [ $? -ne 0 ]; then
	echo "$me: Can't create temp file.  Exiting."
	exit 1
fi

dig @localhost . ns > $tmpfile
if grep '^A.ROOT-SERVERS.NET' $tmpfile > /dev/null; then
	cp /etc/bind/db.root /etc/bind/db.root~
	mv $tmpfile /etc/bind/db.root
	chmod 0644 /etc/bind/db.root
else
	rm -f $tmpfile
fi