public static SafeHandle GetTokenInformation(SafeCloseHandle token, TOKEN_INFORMATION_CLASS infoClass)
{
uint length;
if (!SafeNativeMethods.GetTokenInformation(token, infoClass, SafeHGlobalHandle.InvalidHandle, 0, out length))
{
int error = Marshal.GetLastWin32Error();
if (error != (int)Win32Error.ERROR_INSUFFICIENT_BUFFER)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error, SR.GetString(SR.GetTokenInfoFailed, error)));
}
}
SafeHandle buffer = SafeHGlobalHandle.AllocHGlobal(length);
try
{
if (!SafeNativeMethods.GetTokenInformation(token, infoClass, buffer, length, out length))
{
int error = Marshal.GetLastWin32Error();
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error, SR.GetString(SR.GetTokenInfoFailed, error)));
}
}
catch
{
buffer.Dispose();
throw;
}
return(buffer);
}
public static SafeHandle GetTokenInformation(SafeCloseHandle token, TOKEN_INFORMATION_CLASS infoClass)
{
uint num;
if (!SafeNativeMethods.GetTokenInformation(token, infoClass, SafeHGlobalHandle.InvalidHandle, 0, out num))
{
int error = Marshal.GetLastWin32Error();
if (error != 0x7a)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error, System.ServiceModel.SR.GetString("GetTokenInfoFailed", new object[] { error })));
}
}
SafeHandle tokenInformation = SafeHGlobalHandle.AllocHGlobal(num);
try
{
if (!SafeNativeMethods.GetTokenInformation(token, infoClass, tokenInformation, num, out num))
{
int num3 = Marshal.GetLastWin32Error();
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(num3, System.ServiceModel.SR.GetString("GetTokenInfoFailed", new object[] { num3 })));
}
}
catch
{
tokenInformation.Dispose();
throw;
}
return(tokenInformation);
}