Hello All,
You can see the WindowsIdentity.GetCurrent().Name retrieves the name from
this.User
--------------------Codes--------------
this.m_name = (this.User.Translate(typeof(NTAccount)) as
NTAccount).ToString();
--------------------------------------------
If you look into this.User property implementation using Reflector, you can
find,
--------------------Codes--------------
[ComVisible(false)]
public SecurityIdentifier User
{
get
{
if (this.m_safeTokenHandle.IsInvalid)
{
return null;
}
if (this.m_user == null)
{
uint dwLength = 0;
SafeLocalAllocHandle handle =
GetTokenInformation(this.m_safeTokenHandle,
TokenInformationClass.TokenUser, out dwLength);
this.m_user = new
SecurityIdentifier(Marshal.ReadIntPtr(handle.DangerousGetHandle()), true);
handle.Dispose();
}
return this.m_user;
}
}
private static SafeLocalAllocHandle GetTokenInformation(SafeTokenHandle
tokenHandle, TokenInformationClass tokenInformationClass, out uint dwLength)
{
SafeLocalAllocHandle invalidHandle = SafeLocalAllocHandle.InvalidHandle;
dwLength = (uint) Marshal.SizeOf(typeof(uint));
bool flag = Win32Native.GetTokenInformation(tokenHandle, (uint)
tokenInformationClass, invalidHandle, 0, out dwLength);
int errorCode = Marshal.GetLastWin32Error();
int num2 = errorCode;
if (num2 == 6)
{
throw new
ArgumentException(Environment.GetResourceString("Argument_InvalidImpersonati
onToken"));
}
if ((num2 != 0x18) && (num2 != 0x7a))
{
throw new SecurityException(Win32Native.GetMessage(errorCode));
}
IntPtr sizetdwBytes = new IntPtr((long) ((ulong) dwLength));
invalidHandle = Win32Native.LocalAlloc(0, sizetdwBytes);
if ((invalidHandle == null) || invalidHandle.IsInvalid)
{
throw new OutOfMemoryException();
}
if (!Win32Native.GetTokenInformation(tokenHandle, (uint)
tokenInformationClass, invalidHandle, dwLength, out dwLength))
{
throw new
SecurityException(Win32Native.GetMessage(Marshal.GetLastWin32Error()));
}
return invalidHandle;
}
--------------------------------------------
We can see that it eventually calls into Win32Native.GetTokenInformation
API to retrieve the current user name information.
http://msdn.microsoft.com/en-us/library/aa446671(VS.85).aspx
Although from two different APIs, I think their returned value should be
same exception one include domain information.
Best regards,
Ji Zhou
Microsoft Managed Newsgroup Support Team
