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using System;
using System.Runtime.InteropServices;
namespace Hnsj.Wholesale.BLL
{
public class GetClientMac
{
[DllImport("Iphlpapi.dll")]
private static extern int SendARP(Int32 dest, Int32 host, ref Int64 mac, ref Int32 length);
[DllImport("Ws2_32.dll")]
private static extern Int32 inet_addr(string ip);
public GetClientMac()
{
}
/**/
/// <summary>
/// 获取客户端的MAC地址
/// </summary>
/// <param name="IP">客户端IP</param>
/// <returns>客户端的MAC地址</returns>
public string GetMac(string IP)
{
string mac_dest = "";
try
{
string strClientIP = IP;
Int32 ldest = inet_addr(strClientIP); //目的地的ip
Int64 macinfo = new Int64();
Int32 len = 6;
int res = SendARP(ldest, 0, ref macinfo, ref len);
string mac_src = macinfo.ToString("X");
if (mac_src == "0")
{
return string.Empty;
}
while (mac_src.Length < 12)
{
mac_src = mac_src.Insert(0, "0");
}
for (int i = 0; i < 11; i++)
{
if (0 == (i % 2))
{
if (i == 10)
{
mac_dest = mac_dest.Insert(0, mac_src.Substring(i, 2));
}
else
{
mac_dest = "-" + mac_dest.Insert(0, mac_src.Substring(i, 2));
}
}
}
}
catch
{
}
return mac_dest;
}
}
}