【Python】扫描局域网存活主机并获取MAC地址、主机名

2023-06-16 07:02| 来源: 网络整理| 查看: 265

哈里最近在玩物联网，准备让主机检测手机是否接入wifi从而判断哈里是否回家，因此需要主机时不时扫描一下内网。

废话不多说直接上代码：

import re import socket import time import ping3 """用pip3 install ping3安装""" import os import multiprocessing as mp def GetPCName(host): try: r = socket.gethostbyaddr(host) except Exception as e: # print('GetPCName.e=', e) return 'unknown' return r[0] def OutputCmd(cmd): r = os.popen(cmd) text = r.read() r.close() return text def Ping(host): pingResult = ping3.ping(host) if not pingResult: return None return {'delay': pingResult, 'name': GetPCName(host)} class NetWorkTool: def __init__(self, ipAddr, startNum=1, endNum=255): startTime = time.time() allPingIPList = ['{}.{}'.format(ipAddr, i) for i in range(startNum, endNum + 1)] with mp.Pool(processes=33) as pool: poolResult = pool.map(Ping, allPingIPList) allIPInfo = {allPingIPList[i]: poolResult[i] for i in range(len(allPingIPList))} # print('allIPInfo=', allIPInfo) arpTableText = OutputCmd('arp -a') # print('arpTableText=', arpTableText) arpTableLines = arpTableText.split('\n') result = {} for line in arpTableLines: ip = re.findall(r'\d+\.\d+\.\d+\.\d+', line) if not ip: continue ip = ip[0] if ip not in allIPInfo or allIPInfo[ip] is None: continue mac = re.findall(r'..-..-..-..-..-..', line) if not mac: continue allIPInfo[ip]['mac'] = mac[0] allIPInfo[ip]['ip'] = ip result[ip] = allIPInfo[ip] # print('ipInfo=', allIPInfo[ip]) print('扫描用时：{}秒'.format(time.time() - startTime)) self.allIPInfo = result def FindIP(self, findValue, fuzz=True): for ipData in self.allIPInfo.values(): for key in ipData: if ipData.get(key) == findValue: return ipData if not fuzz: continue if findValue in str(ipData.get(key, '')): return ipData if re.findall(findValue, str(ipData.get(key, ''))): return ipData return None if __name__ == '__main__': tool = NetWorkTool('192.168.31') print('网络详情=', tool.allIPInfo) findResult = tool.FindIP('8T') print('查询结果=', findResult)

优点：只需要安装一个ping3库，哈里看了scapy，还要装软件啥的太麻烦了。

瑕疵：不知道是不是multiprocessing库的锅，偶尔有些地址ping不通，但是单独拎出来又可以ping通，导致有时候获取不到。如果体验不佳后面会改成用threading库。

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