- #!/usr/bin/python
- # -*- coding: utf-8 -*-
- from scapy.all import *
- from time import ctime,sleep
- import threading
- TIMEOUT = 4
- conf.verb=0
- def pro(cc,handle):
- dst = "192.168.1." + str(cc)
- packet = IP(dst=dst, ttl=20)/ICMP()
- reply = sr1(packet, timeout=TIMEOUT)
- if not (reply is None):
- handle.write(reply.src+" is online"+"\\n")
- #print reply.src, "is online"
- def main():
- threads=[]
- f=open('ip.log','a')
- for i in range(2,254):
- t=threading.Thread(target=pro,args=(i,f))
- threads.append(t)
- print "main Thread begins at ",ctime()
- for t in threads :
- t.start()
- for t in threads :
- t.join()
- print "main Thread ends at ",ctime()
- if __name__=="__main__" :
- main();
- #该片段来自于http://www.codesnippet.cn/detail/080420149277.html
来源: http://www.codesnippet.cn/detail/080420149277.html