Python实现的端口扫描功能示例

本文实例讲述了Python实现的端口扫描功能。分享给大家供大家参考，具体如下：

一 代码

import sysimport socketimport multiprocessingdef ports(ports_service):  #获取常用端口对应的服务名称  for port in list(range(1,100))+[143,145,113,443,445,3389, 8080]:    try:      ports_service[port] = socket.getservbyport(port)    except socket.error:      passdef ports_scan(HOST, ports_service):  ports_open = []  try:    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    #sock.settimeout(60)  except socket.error:    print('socket creation error')    sys.exit()  for port in ports_service:    try:      #尝试连接指定端口      sock.connect((HOST,port))      #记录打开的端口      ports_open.append(port)      sock.close()    except socket.error:      pass  return ports_openif __name__=='__main__':  m = multiprocessing.Manager()  ports_service = dict()  results = dict()  ports(ports_service)  #创建进程池，允许最多8个进程同时运行  pool = multiprocessing.Pool(processes=8)  net = '192.168.0.'  for host_number in map(str,range(105,106)):    host = net+host_number    #创建一个新进程，同时记录其运行结果    results[host] = pool.apply_async(ports_scan, (host, ports_service))    print('starting '+host+'...')  #关闭进程池，close()必须在join()之前调用  pool.close()  #等待进程池中的进程全部执行结束  pool.join()  #打印输出结果  for host in results:    print('='*30)    print(host,'.'*10)    for port in results[host].get():      print(port, ':', ports_service[port])

二 运行结果

starting 192.168.0.105...
==============================
192.168.0.105 ..........
80 : http

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

希望本文所述对大家Python程序设计有所帮助。