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 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
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。
