public static string GetMacAddress()
{
var addr = "";
int cb;
Astat adapter;
var ncb = new Ncb();
char uRetCode;
LanaEnum lenum;
ncb.ncb_command = (byte)Ncbconst.Ncbenum;
cb = Marshal.SizeOf(typeof(LanaEnum));
ncb.ncb_buffer = Marshal.AllocHGlobal(cb);
ncb.ncb_length = (ushort)cb;
uRetCode = Win32Api.Netbios(ref ncb);
lenum = (LanaEnum)Marshal.PtrToStructure(ncb.ncb_buffer, typeof(LanaEnum));
Marshal.FreeHGlobal(ncb.ncb_buffer);
if (uRetCode != (short)Ncbconst.NrcGoodret)
{
return("");
}
for (var i = 0; i < lenum.length; i++)
{
ncb.ncb_command = (byte)Ncbconst.Ncbreset;
ncb.ncb_lana_num = lenum.lana[i];
uRetCode = Win32Api.Netbios(ref ncb);
if (uRetCode != (short)Ncbconst.NrcGoodret)
{
return("");
}
ncb.ncb_command = (byte)Ncbconst.Ncbastat;
ncb.ncb_lana_num = lenum.lana[i];
ncb.ncb_callname[0] = (byte)'*';
cb = Marshal.SizeOf(typeof(AdapterStatus)) + Marshal.SizeOf(typeof(NameBuffer)) * (int)Ncbconst.NumNamebuf;
ncb.ncb_buffer = Marshal.AllocHGlobal(cb);
ncb.ncb_length = (ushort)cb;
uRetCode = Win32Api.Netbios(ref ncb);
adapter.adapt = (AdapterStatus)Marshal.PtrToStructure(ncb.ncb_buffer, typeof(AdapterStatus));
Marshal.FreeHGlobal(ncb.ncb_buffer);
if (uRetCode == (short)Ncbconst.NrcGoodret)
{
if (i > 0)
{
addr += "-";
}
addr = string.Format("{0,2:X}-{1,2:X}-{2,2:X}-{3,2:X}-{4,2:X}-{5,2:X}",
adapter.adapt.adapter_address[0],
adapter.adapt.adapter_address[1],
adapter.adapt.adapter_address[2],
adapter.adapt.adapter_address[3],
adapter.adapt.adapter_address[4],
adapter.adapt.adapter_address[5]);
}
}
return(addr);
}
public static extern char Netbios(ref Ncb ncb);
