Python实现的端口扫描功能示例_Python

Python实现的端口扫描功能示例

2021-01-29 00:04chengqiuming Python

这篇文章主要介绍了Python实现的端口扫描功能,涉及Python针对端口的连接、打开、关闭及线程相关操作技巧,需要的朋友可以参考下

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 sys

									import socket

									import multiprocessing

									def 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:

									      pass

									def 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_open

									if __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])