netcat.py 文件源码

def listen():
    port = input('port? ')
    sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    try:
        while True:
            sock.bind(('',port))
            sock.listen(1)
            conn,addr = sock.accept()
            while True:
                sys.stdout.write(conn.recv(4096))
                time.sleep(0.005)
    except (socket.herror,socket.gaierror,socket.timeout) as e:
        print 'could not connect: ',e
    except KeyboardInterrupt:
        print 'disconnecting'
        sock.close()