day09_python socket ssh交互

1.a.accept() 和a.recv()都是阻塞的，基于链接正常

3.s.listen(n)代表能挂起的链接数，如果n等于1代表可以链接一个，挂起一个，就是后面可以排队等一个，第三个拒绝

4.#__author__ = 'DouYunQian'

#coding=utf-8

import socket

client=socket.socket()

ip_addr=("127.0.0.1",9958)

client.connect(ip_addr)

while True:

data=input("cmd >>>")

if len(data)==0:continue

if data=="exit":break

client.sendall(bytes(data,encoding="utf-8"))

rec_data=client.recv(1024)

print(str(rec_data,"utf-8"))

client.close()

以上是服务端代码

客户端代码如下：

#__author__ = 'DouYunQian'

#coding=utf-8

#

# python模拟ssh交互

#

import socket,subprocess

from sys import stdout

server_po=socket.socket()

ip_addr=("127.0.0.1",9958)

server_po.bind(ip_addr)

server_po.listen(5)

while True:

con,addr=server_po.accept()

while True:

try:

rece_data=con.recv(1024)

if len(rece_data)==0:break

p=subprocess.Popen(str(rece_data,"utf-8"),shell=True,stdout=subprocess.PIPE)

win_data=p.stdout.read()

if len(win_data)==0:

send_data="cmd error"

else:

send_data=str(win_data,encoding="gbk")

con.sendall(bytes(send_data,encoding="utf-8"))

except Exception:

break

con.close()

server_po.close()