Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / clr / src / BCL / System / Security / SafeSecurityHandles.cs / 1 / SafeSecurityHandles.cs
namespace Microsoft.Win32.SafeHandles { using System; using System.Runtime.CompilerServices; using System.Runtime.InteropServices; using System.Runtime.ConstrainedExecution; using System.Security; internal sealed class SafeLocalAllocHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLocalAllocHandle () : base(true) {} // 0 is an Invalid Handle internal SafeLocalAllocHandle (IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLocalAllocHandle InvalidHandle { get { return new SafeLocalAllocHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.LocalFree(handle) == IntPtr.Zero; } } internal sealed class SafeLsaLogonProcessHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaLogonProcessHandle() : base (true) {} // 0 is an Invalid Handle internal SafeLsaLogonProcessHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaLogonProcessHandle InvalidHandle { get { return new SafeLsaLogonProcessHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { // LsaDeregisterLogonProcess returns an NTSTATUS return Win32Native.LsaDeregisterLogonProcess(handle) >= 0; } } internal sealed class SafeLsaMemoryHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaMemoryHandle() : base(true) {} // 0 is an Invalid Handle internal SafeLsaMemoryHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaMemoryHandle InvalidHandle { get { return new SafeLsaMemoryHandle( IntPtr.Zero ); } } override protected bool ReleaseHandle() { return Win32Native.LsaFreeMemory(handle) == 0; } } internal sealed class SafeLsaPolicyHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaPolicyHandle() : base(true) {} // 0 is an Invalid Handle internal SafeLsaPolicyHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaPolicyHandle InvalidHandle { get { return new SafeLsaPolicyHandle( IntPtr.Zero ); } } override protected bool ReleaseHandle() { return Win32Native.LsaClose(handle) == 0; } } internal sealed class SafeLsaReturnBufferHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaReturnBufferHandle() : base (true) {} // 0 is an Invalid Handle internal SafeLsaReturnBufferHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaReturnBufferHandle InvalidHandle { get { return new SafeLsaReturnBufferHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { // LsaFreeReturnBuffer returns an NTSTATUS return Win32Native.LsaFreeReturnBuffer(handle) >= 0; } } internal sealed class SafeProcessHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeProcessHandle() : base (true) {} // 0 is an Invalid Handle internal SafeProcessHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeProcessHandle InvalidHandle { get { return new SafeProcessHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } internal sealed class SafeThreadHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeThreadHandle() : base (true) {} // 0 is an Invalid Handle internal SafeThreadHandle(IntPtr handle) : base (true) { SetHandle(handle); } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } internal sealed class SafeTokenHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeTokenHandle() : base (true) {} // 0 is an Invalid Handle internal SafeTokenHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeTokenHandle InvalidHandle { get { return new SafeTokenHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. namespace Microsoft.Win32.SafeHandles { using System; using System.Runtime.CompilerServices; using System.Runtime.InteropServices; using System.Runtime.ConstrainedExecution; using System.Security; internal sealed class SafeLocalAllocHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLocalAllocHandle () : base(true) {} // 0 is an Invalid Handle internal SafeLocalAllocHandle (IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLocalAllocHandle InvalidHandle { get { return new SafeLocalAllocHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.LocalFree(handle) == IntPtr.Zero; } } internal sealed class SafeLsaLogonProcessHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaLogonProcessHandle() : base (true) {} // 0 is an Invalid Handle internal SafeLsaLogonProcessHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaLogonProcessHandle InvalidHandle { get { return new SafeLsaLogonProcessHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { // LsaDeregisterLogonProcess returns an NTSTATUS return Win32Native.LsaDeregisterLogonProcess(handle) >= 0; } } internal sealed class SafeLsaMemoryHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaMemoryHandle() : base(true) {} // 0 is an Invalid Handle internal SafeLsaMemoryHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaMemoryHandle InvalidHandle { get { return new SafeLsaMemoryHandle( IntPtr.Zero ); } } override protected bool ReleaseHandle() { return Win32Native.LsaFreeMemory(handle) == 0; } } internal sealed class SafeLsaPolicyHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaPolicyHandle() : base(true) {} // 0 is an Invalid Handle internal SafeLsaPolicyHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaPolicyHandle InvalidHandle { get { return new SafeLsaPolicyHandle( IntPtr.Zero ); } } override protected bool ReleaseHandle() { return Win32Native.LsaClose(handle) == 0; } } internal sealed class SafeLsaReturnBufferHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeLsaReturnBufferHandle() : base (true) {} // 0 is an Invalid Handle internal SafeLsaReturnBufferHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeLsaReturnBufferHandle InvalidHandle { get { return new SafeLsaReturnBufferHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { // LsaFreeReturnBuffer returns an NTSTATUS return Win32Native.LsaFreeReturnBuffer(handle) >= 0; } } internal sealed class SafeProcessHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeProcessHandle() : base (true) {} // 0 is an Invalid Handle internal SafeProcessHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeProcessHandle InvalidHandle { get { return new SafeProcessHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } internal sealed class SafeThreadHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeThreadHandle() : base (true) {} // 0 is an Invalid Handle internal SafeThreadHandle(IntPtr handle) : base (true) { SetHandle(handle); } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } internal sealed class SafeTokenHandle : SafeHandleZeroOrMinusOneIsInvalid { private SafeTokenHandle() : base (true) {} // 0 is an Invalid Handle internal SafeTokenHandle(IntPtr handle) : base (true) { SetHandle(handle); } internal static SafeTokenHandle InvalidHandle { get { return new SafeTokenHandle(IntPtr.Zero); } } override protected bool ReleaseHandle() { return Win32Native.CloseHandle(handle); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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