python多线程扫描端口(线程池)
扫描服务器ip开放端口，用线程池ThreadPoolExecutor，i7的cpu可以开到600个左右现成,大概20s左右扫描完65535个端口，根据电脑配置适当降低线程数
#!/usr/local/python3.6.3/bin/python3.6
#coding=utf-8
importsocket
importdatetime
importre
fromconcurrent.futuresimportThreadPoolExecutor,wait
DEBUG=False
#判断ip地址输入是否符合规范
defcheck_ip(ipAddr):
compile_ip=re.compile('^(1\d{2}|2[0-4]\d|25[0-5]|[1-9]\d|[1-9])\.(1\d{2}|2[0-4]\d|25[0-5]|[1-9]\d|\d)\.(1\d{2}|2[0-4]\d|25[0-5]|[1-9]\d|\d)\.(1\d{2}|2[0-4]\d|25[0-5]|[1-9]\d|\d)$')
ifcompile_ip.match(ipAddr):
returnTrue
else:
returnFalse
#扫描端口程序
defportscan(ip,port):
try:
s=socket.socket()
s.settimeout(0.2)
s.connect((ip,port))
openstr=f'[+]{ip}port:{port}open'
print(openstr)
exceptExceptionase:
ifDEBUGisTrue:
print(ip+str(port)+str(e))
else:
returnf'[+]{ip}port:{port}error'
finally:
s.close
#主程序,利用ThreadPoolExecutor创建600个线程同时扫描端口
defmain():
whileTrue:
ip=input("请输入ip地址:")
ifcheck_ip(ip):
start_time=datetime.datetime.now()
executor=ThreadPoolExecutor(max_workers=600)
t=[executor.submit(portscan,ip,n)forninrange(1,65536)]
ifwait(t,return_when='ALL_COMPLETED'):
end_time=datetime.datetime.now()
print("扫描完成,用时:",(end_time-start_time).seconds)
break
if__name__=='__main__':
main()
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