UnsafeNativeMethods.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / System.Runtime.DurableInstancing / System / Runtime / Interop / UnsafeNativeMethods.cs / 1305376 / UnsafeNativeMethods.cs

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

namespace System.Runtime.Interop 
{
    using System; 
    using System.Text; 
    using System.Security;
    using System.Collections.Generic; 
    using System.Diagnostics.Eventing;
    using System.Runtime.Versioning;
    using Microsoft.Win32.SafeHandles;
    using System.Runtime.InteropServices; 
    using System.Diagnostics.CodeAnalysis;
    using System.Diagnostics.Eventing.Reader; 
 
    [SuppressUnmanagedCodeSecurity]
    static class UnsafeNativeMethods 
    {
        public const string KERNEL32 = "kernel32.dll";
        public const String ADVAPI32 = "advapi32.dll";
 
        public const int ERROR_INVALID_HANDLE = 6;
        public const int ERROR_MORE_DATA = 234; 
        public const int ERROR_ARITHMETIC_OVERFLOW = 534; 
        public const int ERROR_NOT_ENOUGH_MEMORY = 8;
 
        [StructLayout(LayoutKind.Explicit, Size = 16)]
        public struct EventData
        {
            [FieldOffset(0)] 
            internal UInt64 DataPointer;
            [FieldOffset(8)] 
            internal uint Size; 
            [FieldOffset(12)]
            internal int Reserved; 
        }

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, BestFitMapping = false, CharSet = CharSet.Auto)]
 	    [ResourceExposure(ResourceScope.Process)] 
        [SecurityCritical] 
        public static extern SafeWaitHandle CreateWaitableTimer(IntPtr mustBeZero, bool manualReset, string timerName);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(KERNEL32, ExactSpelling = true)]
	    [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        public static extern bool SetWaitableTimer(SafeWaitHandle handle, ref long dueTime, int period, IntPtr mustBeZero, IntPtr mustBeZeroAlso, bool resume); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)]
        [SecurityCritical]
        public static extern int QueryPerformanceCounter(out long time); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = false)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        public static extern uint GetSystemTimeAdjustment(
            [Out] out int adjustment,
            [Out] out uint increment, 
            [Out] out uint adjustmentDisabled
            ); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)]
        [SecurityCritical]
        public static extern void GetSystemTimeAsFileTime([Out] out long time); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.SpecifyMarshalingForPInvokeStringArguments, Justification = "")] 
        [DllImport(KERNEL32, SetLastError = true)] 
        [return: MarshalAs(UnmanagedType.Bool)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        static extern bool GetComputerNameEx
            (
            [In] ComputerNameFormat nameType, 
            [In, Out, MarshalAs(UnmanagedType.LPTStr)] StringBuilder lpBuffer,
            [In, Out] ref int size 
            ); 

        [SecurityCritical] 
        internal static string GetComputerName(ComputerNameFormat nameType)
        {
            int length = 0;
            if (!GetComputerNameEx(nameType, null, ref length)) 
            {
                int error = Marshal.GetLastWin32Error(); 
 
                if (error != ERROR_MORE_DATA)
                { 
                    throw Fx.Exception.AsError(new System.ComponentModel.Win32Exception(error));
                }
            }
 

            if (length < 0) 
            { 
                Fx.AssertAndThrow("GetComputerName returned an invalid length: " + length);
            } 

            StringBuilder stringBuilder = new StringBuilder(length);
            if (!GetComputerNameEx(nameType, stringBuilder, ref length))
            { 
                int error = Marshal.GetLastWin32Error();
                throw Fx.Exception.AsError(new System.ComponentModel.Win32Exception(error)); 
            } 

            return stringBuilder.ToString(); 
        }

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical] 
        internal static extern bool IsDebuggerPresent();
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(KERNEL32)]
        [ResourceExposure(ResourceScope.Process)] 
        [SecurityCritical]
        internal static extern void DebugBreak(); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, CharSet = CharSet.Unicode)]
        [ResourceExposure(ResourceScope.Process)]
        [SecurityCritical]
        internal static extern void OutputDebugString(string lpOutputString); 

        // 
        // Callback 
        //
        [SecurityCritical] 
        internal unsafe delegate void EtwEnableCallback(
            [In] ref Guid sourceId,
            [In] int isEnabled,
            [In] byte level, 
            [In] long matchAnyKeywords,
            [In] long matchAllKeywords, 
            [In] void* filterData, 
            [In] void* callbackContext
            ); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventRegister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical]
        internal static extern unsafe uint EventRegister( 
                    [In] ref Guid providerId, 
                    [In]EtwEnableCallback enableCallback,
                    [In]void* callbackContext, 
                    [In][Out]ref long registrationHandle
                    );

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventUnregister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical] 
        internal static extern uint EventUnregister([In] long registrationHandle);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWrite", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical] 
        internal static extern unsafe uint EventWrite(
                [In] long registrationHandle, 
                [In] ref EventDescriptor eventDescriptor, 
                [In] uint userDataCount,
                [In] EventData* userData 
                );

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteTransfer", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical] 
        internal static extern unsafe uint EventWriteTransfer( 
                [In] long registrationHandle,
                [In] ref EventDescriptor eventDescriptor, 
                [In] ref Guid activityId,
                [In] ref Guid relatedActivityId,
                [In] uint userDataCount,
                [In] EventData* userData 
                );
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteString", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical]
        internal static extern unsafe uint EventWriteString(
                [In] long registrationHandle,
                [In] byte level, 
                [In] long keywords,
                [In] char* message 
                ); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventActivityIdControl", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical]
        internal static extern unsafe uint EventActivityIdControl([In] int ControlCode, [In][Out] ref Guid ActivityId); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(ADVAPI32, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        [Fx.Tag.SecurityNote(Critical = "Accesses security critical type SafeHandle")]
        internal static extern bool ReportEvent(SafeHandle hEventLog, ushort type, ushort category,
                                                uint eventID, byte[] userSID, ushort numStrings, uint dataLen, HandleRef strings, 
                                                byte[] rawData);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)] 
        [ResourceExposure(ResourceScope.Machine)]
        [Fx.Tag.SecurityNote(Critical = "Returns security critical type SafeEventLogWriteHandle")]
        [SecurityCritical]
        internal static extern SafeEventLogWriteHandle RegisterEventSource(string uncServerName, string sourceName); 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.Runtime.Interop 
{
    using System; 
    using System.Text; 
    using System.Security;
    using System.Collections.Generic; 
    using System.Diagnostics.Eventing;
    using System.Runtime.Versioning;
    using Microsoft.Win32.SafeHandles;
    using System.Runtime.InteropServices; 
    using System.Diagnostics.CodeAnalysis;
    using System.Diagnostics.Eventing.Reader; 
 
    [SuppressUnmanagedCodeSecurity]
    static class UnsafeNativeMethods 
    {
        public const string KERNEL32 = "kernel32.dll";
        public const String ADVAPI32 = "advapi32.dll";
 
        public const int ERROR_INVALID_HANDLE = 6;
        public const int ERROR_MORE_DATA = 234; 
        public const int ERROR_ARITHMETIC_OVERFLOW = 534; 
        public const int ERROR_NOT_ENOUGH_MEMORY = 8;
 
        [StructLayout(LayoutKind.Explicit, Size = 16)]
        public struct EventData
        {
            [FieldOffset(0)] 
            internal UInt64 DataPointer;
            [FieldOffset(8)] 
            internal uint Size; 
            [FieldOffset(12)]
            internal int Reserved; 
        }

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, BestFitMapping = false, CharSet = CharSet.Auto)]
 	    [ResourceExposure(ResourceScope.Process)] 
        [SecurityCritical] 
        public static extern SafeWaitHandle CreateWaitableTimer(IntPtr mustBeZero, bool manualReset, string timerName);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(KERNEL32, ExactSpelling = true)]
	    [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        public static extern bool SetWaitableTimer(SafeWaitHandle handle, ref long dueTime, int period, IntPtr mustBeZero, IntPtr mustBeZeroAlso, bool resume); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)]
        [SecurityCritical]
        public static extern int QueryPerformanceCounter(out long time); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = false)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        public static extern uint GetSystemTimeAdjustment(
            [Out] out int adjustment,
            [Out] out uint increment, 
            [Out] out uint adjustmentDisabled
            ); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)]
        [SecurityCritical]
        public static extern void GetSystemTimeAsFileTime([Out] out long time); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.SpecifyMarshalingForPInvokeStringArguments, Justification = "")] 
        [DllImport(KERNEL32, SetLastError = true)] 
        [return: MarshalAs(UnmanagedType.Bool)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        static extern bool GetComputerNameEx
            (
            [In] ComputerNameFormat nameType, 
            [In, Out, MarshalAs(UnmanagedType.LPTStr)] StringBuilder lpBuffer,
            [In, Out] ref int size 
            ); 

        [SecurityCritical] 
        internal static string GetComputerName(ComputerNameFormat nameType)
        {
            int length = 0;
            if (!GetComputerNameEx(nameType, null, ref length)) 
            {
                int error = Marshal.GetLastWin32Error(); 
 
                if (error != ERROR_MORE_DATA)
                { 
                    throw Fx.Exception.AsError(new System.ComponentModel.Win32Exception(error));
                }
            }
 

            if (length < 0) 
            { 
                Fx.AssertAndThrow("GetComputerName returned an invalid length: " + length);
            } 

            StringBuilder stringBuilder = new StringBuilder(length);
            if (!GetComputerNameEx(nameType, stringBuilder, ref length))
            { 
                int error = Marshal.GetLastWin32Error();
                throw Fx.Exception.AsError(new System.ComponentModel.Win32Exception(error)); 
            } 

            return stringBuilder.ToString(); 
        }

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical] 
        internal static extern bool IsDebuggerPresent();
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(KERNEL32)]
        [ResourceExposure(ResourceScope.Process)] 
        [SecurityCritical]
        internal static extern void DebugBreak(); 
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(KERNEL32, CharSet = CharSet.Unicode)]
        [ResourceExposure(ResourceScope.Process)]
        [SecurityCritical]
        internal static extern void OutputDebugString(string lpOutputString); 

        // 
        // Callback 
        //
        [SecurityCritical] 
        internal unsafe delegate void EtwEnableCallback(
            [In] ref Guid sourceId,
            [In] int isEnabled,
            [In] byte level, 
            [In] long matchAnyKeywords,
            [In] long matchAllKeywords, 
            [In] void* filterData, 
            [In] void* callbackContext
            ); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventRegister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical]
        internal static extern unsafe uint EventRegister( 
                    [In] ref Guid providerId, 
                    [In]EtwEnableCallback enableCallback,
                    [In]void* callbackContext, 
                    [In][Out]ref long registrationHandle
                    );

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventUnregister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical] 
        internal static extern uint EventUnregister([In] long registrationHandle);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWrite", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical] 
        internal static extern unsafe uint EventWrite(
                [In] long registrationHandle, 
                [In] ref EventDescriptor eventDescriptor, 
                [In] uint userDataCount,
                [In] EventData* userData 
                );

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage,
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteTransfer", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical] 
        internal static extern unsafe uint EventWriteTransfer( 
                [In] long registrationHandle,
                [In] ref EventDescriptor eventDescriptor, 
                [In] ref Guid activityId,
                [In] ref Guid relatedActivityId,
                [In] uint userDataCount,
                [In] EventData* userData 
                );
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteString", CharSet = System.Runtime.InteropServices.CharSet.Unicode)] 
        [SecurityCritical]
        internal static extern unsafe uint EventWriteString(
                [In] long registrationHandle,
                [In] byte level, 
                [In] long keywords,
                [In] char* message 
                ); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, ExactSpelling = true, EntryPoint = "EventActivityIdControl", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
        [SecurityCritical]
        internal static extern unsafe uint EventActivityIdControl([In] int ControlCode, [In][Out] ref Guid ActivityId); 

        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")] 
        [DllImport(ADVAPI32, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)]
        [ResourceExposure(ResourceScope.None)] 
        [SecurityCritical]
        [Fx.Tag.SecurityNote(Critical = "Accesses security critical type SafeHandle")]
        internal static extern bool ReportEvent(SafeHandle hEventLog, ushort type, ushort category,
                                                uint eventID, byte[] userSID, ushort numStrings, uint dataLen, HandleRef strings, 
                                                byte[] rawData);
 
        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.ReviewSuppressUnmanagedCodeSecurityUsage, 
            Justification = "This PInvoke call has been reviewed")]
        [DllImport(ADVAPI32, CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true)] 
        [ResourceExposure(ResourceScope.Machine)]
        [Fx.Tag.SecurityNote(Critical = "Returns security critical type SafeEventLogWriteHandle")]
        [SecurityCritical]
        internal static extern SafeEventLogWriteHandle RegisterEventSource(string uncServerName, string sourceName); 
    }
} 

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

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