import os
import socket
import sys
import threading
import msvcrt
msvcrt.setmode(0,os.O_BINARY)
msvcrt.setmode(1,os.O_BINARY)
conn=socket.socket()
conn.setsockopt(socket.IPPROTO_IP,31,socket.htonl(16))
conn.bind(('192.168.123.43',0))
conn.settimeout(10)
conn.connect((sys.argv[1],int(sys.argv[2])))
conn.settimeout(None)
def upload():
    try:
        while True:
            data=os.read(0,65536)
            if not data:break
            conn.sendall(data)
        conn.shutdown(socket.SHUT_WR)
    except OSError:pass
threading.Thread(target=upload,daemon=True).start()
try:
    while True:
        data=conn.recv(65536)
        if not data:break
        os.write(1,data)
finally:
    conn.close()