python实现的多线程端口扫描功能示例

本文实例讲述了python实现的多线程端口扫描功能。分享给大家供大家参考，具体如下：

下面的程序给出了对给定的ip主机进行多线程扫描的Python代码

    #!/usr/bin/env python
    #encoding: utf-8
    import socket, sys, thread, time
    openPortNum = 0
    socket.setdefaulttimeout(3)
    def usage():
      print '''''Usage:
      Scan the port of one IP: python port_scan_multithread.py -o <ip>
      Scan the port of one IP: python port_scan_multithread.py -m <ip1, ip2, ip3, ip4 ...>
      '''
      print 'Exit'
      sys.exit(1)
    def socket_port(ip, PORT):
      global openPortNum
      if PORT > 65535:
        print 'Port scanning beyond the port range, interrupt to scan'
        sys.exit(1)
      s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      result = s.connect_ex((ip, PORT))
      if(result == 0):
        print ip, PORT,'is open'
        openPortNum += 1
      s.close()
    def start_scan(IP):
      for port in range(0, 65535+1):
        thread.start_new_thread(socket_port, (IP, int(port)))
        time.sleep(0.006)
    if __name__ == '__main__':
      t = 0
      if len(sys.argv)<2 or sys.argv[1] == '-h':
        usage()
      elif sys.argv[1] == '-o':
        ONE_IP = raw_input('Please input ip of scanning: ')
        t = time.time()
        start_scan(ONE_IP)
      elif sys.argv[1] == '-m':
        MANY_IP = raw_input('Please input many ip of scanning: ')
        IP_SEG = MANY_IP.split(',')
        t = time.time()
        for i in IP_SEG:
          start_scan(i)
      print
      print 'total open port is %s, scan used time is: %f ' % (openPortNum, time.time()-t)

运行效果图

更多关于Python相关内容感兴趣的读者可查看本站专题：《Python URL操作技巧总结》、《Python数据结构与算法教程》、《Python Socket编程技巧总结》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》

希望本文所述对大家Python程序设计有所帮助。