#!/bin/sh
URL=http://www.snort.org/dl/rules
FILE=snortrules-current.tar.gz
SNORT=/home/snort
MAILTO=admin@aviationlearning.com

cd $SNORT/tmp
wget -q $URL/$FILE $URL/$FILE.md5
MD5=`grep MD5 $FILE.md5|awk '{print $4}'`
DLD=`md5sum $FILE|awk '{print $1}'`

if [ "$DLD" != "$MD5" ];
then
	echo "Error: $FILE ($MD5) doesn't match $FILE ($DLD)"|mail $MAILTO
else
	tar xzf $FILE && mv -f rules/* $SNORT/rules/ && rm -rf rules $FILE $FILE.md5 && echo "Snort rules updated"|mail $MAILTO
	chown -R root:root $SNORT/rules
	/etc/rc.d/init.d/snort restart
fi