public string GetMacAddress()
{
string str = "";
try
{
HardwareInfo.NCB ncb = new HardwareInfo.NCB();
ncb.ncb_command = (byte)55;
int cb1 = Marshal.SizeOf(typeof(HardwareInfo.LANA_ENUM));
ncb.ncb_buffer = Marshal.AllocHGlobal(cb1);
ncb.ncb_length = (ushort)cb1;
char ch1 = HardwareInfo.Win32API.Netbios(ref ncb);
HardwareInfo.LANA_ENUM structure = (HardwareInfo.LANA_ENUM)Marshal.PtrToStructure(ncb.ncb_buffer, typeof(HardwareInfo.LANA_ENUM));
Marshal.FreeHGlobal(ncb.ncb_buffer);
if (ch1 != char.MinValue)
{
return("");
}
for (int index = 0; index < (int)structure.length; ++index)
{
ncb.ncb_command = (byte)50;
ncb.ncb_lana_num = structure.lana[index];
if (HardwareInfo.Win32API.Netbios(ref ncb) != char.MinValue)
{
return("");
}
ncb.ncb_command = (byte)51;
ncb.ncb_lana_num = structure.lana[index];
ncb.ncb_callname[0] = (byte)42;
int cb2 = Marshal.SizeOf(typeof(HardwareInfo.ADAPTER_STATUS)) + Marshal.SizeOf(typeof(HardwareInfo.NAME_BUFFER)) * 30;
ncb.ncb_buffer = Marshal.AllocHGlobal(cb2);
ncb.ncb_length = (ushort)cb2;
char ch2 = HardwareInfo.Win32API.Netbios(ref ncb);
HardwareInfo.ASTAT astat;
astat.adapt = (HardwareInfo.ADAPTER_STATUS)Marshal.PtrToStructure(ncb.ncb_buffer, typeof(HardwareInfo.ADAPTER_STATUS));
Marshal.FreeHGlobal(ncb.ncb_buffer);
if (ch2 == char.MinValue)
{
if (index > 0)
{
str += ":";
}
str = string.Format("{0,2:X}{1,2:X}{2,2:X}{3,2:X}{4,2:X}{5,2:X}", (object)astat.adapt.adapter_address[0], (object)astat.adapt.adapter_address[1], (object)astat.adapt.adapter_address[2], (object)astat.adapt.adapter_address[3], (object)astat.adapt.adapter_address[4], (object)astat.adapt.adapter_address[5]);
}
}
}
catch
{
}
return(str.Replace(' ', '0'));
}
public static extern char Netbios(ref HardwareInfo.NCB ncb);