#!/bin/sh
#
# $Id$
#
cd /usr/local/libexec/uvscan/
ftp http://download.nai.com/products/datfiles/4.x/nai/readme.txt >/dev/null
AVVER=`grep DAT readme.txt | head -5 | grep '[^0-9]4[0-9][0-9][0-9][^0-9]' | head -1 | sed -e 's/^.*[^0-9]\(4[0-9]*\)[^0-9].*$/\1/'`
if [ ! -f dat-$AVVER.tar ]; then
	for i in *.tar ; do
		mv $i $i.old
	done
	if ftp http://download.nai.com/products/datfiles/4.x/nai/dat-$AVVER.tar >/dev/null ; then
		for i in *.dat ; do
			cp -p $i $i.bak
		done
		if tar xf dat-$AVVER.tar ; then
			rm -f *.old
			echo `date` Successfully updated AntiVirus DAT files to $AVVER
		fi
	fi
fi