ipt_analysis

#!/bin/bash

##########################
# ipt_analysis will simplify the iptables log reading.
#
# If ipt_analysis doesn't take arguments, it will
# analyse the current day. Otherwise, it will analyse the day
# gave with the -d option.
#
# Contact : ride_online@hotmail.fr
###########################

####
# Global variable
DIRSTOR="/usr/local/iptreport"
FREPORT="ipt_report`date '+%d%m%Y%H%M'`"
ANLOG="anlog.awk"
IPTLOG="/var/log/iptables.log"

####
# Function
error() {
	echo $* >&2
	exit 1
}

syntax() {
	echo "Usage : ${0##*/} [-d <day>]"
	echo "<day> is 1 day of the month. "
	echo "Eg: 12   will be the 12th day of the month"
}

#############################################################################
################      STARTING PROGRAM

if [ ! `id -u` -eq 0 ]
then
	error "You must be root to run iptables rules"
fi

test -d $DIRSTOR || mkdir $DIRSTOR

#if [[ $# -gt 2 || $# -eq 1 ]]; then
#	syntax
#	exit 1
#if [[ $# -ge 1 && $1 != -[a-z] ]]; then
#	syntax
#	exit 1
#fi

while getopts ":hd:" option
do
	case "$option" in
		
		## help option
		h)
			syntax
			exit 0
			;;
		## day option
		d)
			nbday=$OPTARG
			;;
		:)
			error "Need an argument for -$OPTARG"
			syntax
			;;
		\?)
			error "INVALID OPTION"
			syntax
			;;
	esac
done

if test $nbday; then
	if `echo $nbday |egrep -q "^[0-9]{1,}$"`; then
		if [[ $nbday -lt 1 || $nbday -gt 31 ]];then
			error "<day> out of interval"
		fi
	
		awk -f $ANLOG $nbday $DIRSTOR/$FREPORT $IPTLOG
	else
		error "Syntax error for the <day> argument"
	fi
else
	awk -f $ANLOG $DIRSTOR/$FREPORT $IPTLOG
fi
		
exit 0