#! /usr/bin/env python
import socket
import sys

# create a socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# associate the socket with a port
host = '' # can leave this blank on the server side
port = int(sys.argv[1])
s.bind((host, port))

# accept "call" from client
s.listen(1)
conn, addr = s.accept()
print 'client is at', addr

while (1):
	data = conn.recv(1000000)
        if not data: # if end of data, leave loop
                break
        print 'received', len(data), 'bytes: ', data
	conn.send(data)

# close the connection
conn.close()