#!/bin/bash
#
# script to check, if the firewall did log something...
# author	: Stefan M. Huber
# date	: 2000-04-10
# update	: 2000-07-13

# This variable contains the file to scrutinize.
IPLOG=/var/log/messages


case $1 in
 --help)
	echo "$0: Usage: $0 [--help] | [-f output-file] | [-a output-file] | [-r] | [-c] | [-b]" 1>&2
	echo -e "\n"
	echo "  --help   displays this message"
	echo "  -f       specifies an output file of matching lines which is then viewed with less"
	echo "  -a       same as -f but appends output to file"
	echo "  -r       deletes matching lines from /var/log/messages"
	echo "  -c       only count matching lines"
	echo "  -b       only list packets that weren't accepted"
	;;
 -a)
	grep "Packet log:" $IPLOG >> $2
	;;
 -f)
	grep "Packet log:" $IPLOG > $2
	;;
 -r)
	mv ${IPLOG} ${IPLOG}.ipchk	
	grep -v "Packet log:" ${IPLOG}.ipchk > ${IPLOG}	
	killall -HUP syslogd
	;;
 -c)
	grep -c "Packet log:" $IPLOG
	;;
 -b)
	grep "Packet log:" $IPLOG | grep -v "ACCEPT"
	;;
 *)
	grep "Packet log:" $IPLOG
	;;
esac