python检测远程udp端口是否打开的方法
发布时间:2020-12-16 19:48:42 所属栏目:Python 来源:网络整理
导读:本篇章节讲解python检测远程udp端口是否打开的方法。供大家参考研究。具体实现方法如下: 复制代码 代码如下: import socket import threading import time import struct import Queue queue = Queue.Queue() def udp_sender(ip,port): try: ADDR =
本篇章节讲解python检测远程udp端口是否打开的方法。分享给大家供大家参考。具体实现方法如下: 复制代码 代码如下: import socket
import threading import time import struct import Queue queue = Queue.Queue() def udp_sender(ip,port): try: ADDR = (ip,port) sock_udp = socket.socket(socket.AF_INET,socket.SOCK_DGRAM) sock_udp.sendto("abcd...",ADDR) sock_udp.close() except: pass def icmp_receiver(ip,port): icmp = socket.getprotobyname("icmp") try: sock_icmp = socket.socket(socket.AF_INET,socket.SOCK_RAW,icmp) except socket.error,(errno,msg): if errno == 1: # Operation not permitted msg = msg + ( " - Note that ICMP messages can only be sent from processes" " running as root." ) raise socket.error(msg) raise # raise the original error sock_icmp.settimeout(3) try: recPacket,addr = sock_icmp.recvfrom(64) except: queue.put(True) return icmpHeader = recPacket[20:28] icmpPort = int(recPacket.encode('hex')[100:104],16) head_type,code,checksum,packetID,sequence = struct.unpack( "bbHHh",icmpHeader ) sock_icmp.close() if code == 3 and icmpPort == port and addr[0] == ip: queue.put(False) return def checker_udp(ip,port): thread_udp = threading.Thread(target=udp_sender,args=(ip,port)) thread_icmp = threading.Thread(target=icmp_receiver,port)) thread_udp.daemon= True thread_icmp.daemon = True thread_icmp.start() time.sleep(0.1) thread_udp.start() thread_icmp.join() 希望本文所述对大家的Python程序设计有所帮助。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |