端口扫描工具

简单的多线程端口扫描工具

可以接收IP地址作为参数，如果不接参数，则默认扫描本机的端口

 1 #!/usr/bin/python
 2 
 3 import socket
 4 import time
 5 import argparse
 6 import threading
 7 
 8 def arg_process():
 9     argparser=argparse.ArgumentParser(description="Port Scaner")
10     argparser.add_argument('-i','--ip',action='store',dest='ip',default='localhost')
11     args=argparser.parse_args()
12     ip=args.ip
13     return ip
14 
15 def scan(ip,port):
16     if port>=65535:
17         pass
18     else:
19         addr=(ip,port)
20         sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
21         try:
22             status=sock.connect_ex(addr)
23             if status==0:
24                 print "%d opened"%port
25         
26         except:
27             pass
28         finally:
29             sock.close()
30 
31 def main(start,stop):
32     ip=arg_process()
33     for port in range(start,stop):
34         scan(ip,port)
35 
36 
37 if __name__=='__main__':
38     t1=time.time()
39     threads=[]
40     for i in range(20):
41         t=threading.Thread(target=main,args=(3277*i,3277*(i+1)))
42         threads.append(t)
43     for t in threads:
44         t.setDaemon(True)
45         t.start()
46     t.join()
47     t2=time.time()
48     delta=t2-t1
49     print "It spend %d seconds"%delta