So cute are you python 4

Python 实现端口探测

import os
import socket
import threading
import getopt,sys


def connect_port(ip,port):
    try:
        s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) # 初始化socket
        s.connect((ip,port)) #连接主机和端口
        print 'port %d is open' %(port) #输出打开的端口
        s.close()#关闭套接字


    except socket.error,msg:
            pass #异常处理
        
if __name__ == '__main__':#主函数
    print 'Now we starting scanning...\r\n'
    threads =[]
    opt,args = getopt.getopt(sys.argv[1:],'')#Sys.argv[]是用来获取命令行参数的，sys.argv[0]表示代码本身文件路径，所以参数从1开始


    if len(args)<0:
        print 'The lebgth were less than zero'
        quit()


    for i in xrange(0,500):
        threads.append(threading.Thread(target=connect_port("192.168.0.63",i)))#开启线程进行端口探测


    for t in threads:
        t.start()


    for j in threads:
        t.join()

  结果：

Now we starting scanning...

port 80 is open
port 110 is open
port 135 is open
port 443 is open
port 445 is open

改进1：自定义一个输入地址可以控制探测主机

import os

import socket
import threading
import getopt,sys


def connect_port(ip,port):
    try:
        s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) # 初始化socket
        s.connect((ip,port)) #连接主机和端口
        print 'port %d is open' %(port) #输出打开的端口
        s.close()#关闭套接字


    except socket.error,msg:
            pass #异常处理
        
if __name__ == '__main__':#主函数
    print 'Now we starting scanning...\r\n'
    threads =[]
    opt,args = getopt.getopt(sys.argv[1:],'')#Sys.argv[]是用来获取命令行参数的，sys.argv[0]表示代码本身文件路径，所以参数从1开始


    if len(args)<0:
        print 'The lebgth were less than zero'
        quit()

     addr=raw_input('Please input the address that you want to scanning.')#输入要探测的主机地址
    for i in xrange(0,500):
        threads.append(threading.Thread(target=connect_port(str(addr),i)))#开启线程进行端口探测


    for t in threads:
        t.start()


    for j in threads:
        t.join()