blackhole.py

#!/usr/bin/env python
# a simple multi-threaded TCP Black Hole server
import sys
from socket import *
import threading
import thread
import time

def handler(clientsock,addr):
    try:
        while 1:
            data = clientsock.recv(65535);
            if not data:
                break
    finally:
        print 'connection close...'
        clientsock.close()

if __name__ == '__main__':
    HOST = '0.0.0.0'
    PORT = int(sys.argv[1])
    BUFSIZ = 65535
    ADDR = (HOST, PORT)

    serversock = socket(AF_INET, SOCK_STREAM)
    serversock.bind(ADDR)
    serversock.listen(5)

    while 1:
        print 'waiting for connection...'
        clientsock, addr = serversock.accept()
        print '...connected from: ', addr
        thread.start_new_thread(handler, (clientsock, addr))