129 lines
4.2 KiB
C#
129 lines
4.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace PlumByteUI_Learn
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{
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public class ArpUtil
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{
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/// <summary>
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/// 引入windowsAPI
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/// </summary>
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//用于转换ip地址
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[DllImport("ws2_32.dll")]
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public static extern int inet_addr(string cp);
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//用于发送APR包（根据APR协议！）
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[DllImport("IPHLPAPI.dll")]
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public static extern int SendARP(int DestIP, int ScrIP, ref long pMacAddr, ref int PhyAddrLen);
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/// <summary>
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/// 根据ARP映射获取指定IP的MAC地址
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/// </summary>
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/// <param name="ip"></param>
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/// <returns></returns>
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public string GetMACAddressByIP(string ip)
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{
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StringBuilder macRouteBuilder = new StringBuilder();
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string macRoute;
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try
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{
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int ldest = inet_addr(ip); //将IP地址从 点数格式转换成无符号长整型
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long macinfo = new long();
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int len = 6;
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//SendARP函数发送一个地址解析协议(ARP)请求获得指定的目的地IPv4地址相对应的物理地址
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SendARP(ldest, 0, ref macinfo, ref len);
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string TmpMac = Convert.ToString(macinfo, 16).PadLeft(12, '0'); //转换成16进制
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//
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for (int i = 10; i >= 0; i = i - 2) //反过来读取，原因可以查看接口函数sendApr！
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{
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macRouteBuilder.Append(TmpMac.Substring(i, 2).ToUpper());
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if (i >= 2)
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{
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macRouteBuilder.Append("-");
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}
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}
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}
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catch (Exception Mye)
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{
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macRouteBuilder.Append("获取远程主机的MAC错误：");
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macRouteBuilder.Append(Mye.ToString());
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}
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macRoute = macRouteBuilder.ToString();
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return macRoute;
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}
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/// <summary>
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/// 获取ARP查询字符串
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/// </summary>
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/// <returns></returns>
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private static string GetArpResult()
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{
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Process p = null;
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string output = string.Empty;
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try
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{
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p = Process.Start(new ProcessStartInfo("arp", "-a -n 192.168.0.105")
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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RedirectStandardOutput = true
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});
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output = p.StandardOutput.ReadToEnd();
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}
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catch (Exception ex)
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{
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throw new Exception("IPInfo: Error Retrieving 'arp -a' Results", ex);
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}
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finally
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{
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if (p != null)
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{
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p.Close();
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}
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}
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return output;
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}
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/// <summary>
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/// 获取IP地址与Mac地址对应数据表
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/// </summary>
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/// <returns>Mac-IP</returns>
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public static List<string[]> GetIpInfo()
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{
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try
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{
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var list = new List<string[]>();
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var arpResult = GetArpResult();
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foreach (var arp in arpResult.Split(new char[] { '\n', '\r' }))
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{
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if (!string.IsNullOrEmpty(arp))
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{
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var oArp = arp.Split(new char[] { ' ', '\t' });
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var pieces = (from piece in oArp
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where !string.IsNullOrEmpty(piece)
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select piece).ToArray();
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if (pieces.Length == 3)
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{
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//pieces[1]Mac
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//pieces[0]IP
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list.Add(new string[2] { pieces[1], pieces[0] });
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}
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}
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}
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return list;
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}
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catch (Exception ex)
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{
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throw new Exception("IPInfo: Error Parsing 'arp -a' results", ex);
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}
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}
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}
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} |