SafeNativeMethods.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / System.ServiceModel.Activation / System / ServiceModel / Activation / Interop / SafeNativeMethods.cs / 1305376 / SafeNativeMethods.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.ServiceModel.Activation.Interop 
{
    using System; 
    using System.Security; 
    using System.Runtime.InteropServices;
    using System.Security.Principal; 
    using System.Runtime.Versioning;
    using System.Runtime;

    [SuppressUnmanagedCodeSecurity] 
    static class SafeNativeMethods
    { 
        public const int ERROR_NO_TOKEN = 1008; 

        const string ADVAPI32 = "advapi32.dll"; 
        const string KERNEL32 = "kernel32.dll";

        [DllImport(ADVAPI32, SetLastError = true, EntryPoint = "OpenThreadToken")]
        [ResourceExposure(ResourceScope.None)] 
        static extern bool OpenThreadTokenCritical(
            [In] IntPtr ThreadHandle, 
            [In] TokenAccessLevels DesiredAccess, 
            [In] bool OpenAsSelf,
            [Out] out SafeCloseHandleCritical TokenHandle); 

        [DllImport(KERNEL32, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)]
        static extern IntPtr GetCurrentThread(); 

        [Fx.Tag.SecurityNote(Critical = "Calls two safe native methods: GetCurrentThread and OpenThreadToken." + 
            "Marshal.GetLastWin32Error captures current thread token in a SecurityCritical field.")] 
        [SecurityCritical]
        internal static bool OpenCurrentThreadTokenCritical(TokenAccessLevels desiredAccess, bool openAsSelf, out SafeCloseHandleCritical tokenHandle, out int error) 
        {
            bool result = OpenThreadTokenCritical(GetCurrentThread(), desiredAccess, openAsSelf, out tokenHandle);
            error = Marshal.GetLastWin32Error();
            return result; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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