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

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])

二 运行结果

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