54 lines
2.3 KiB
C#
54 lines
2.3 KiB
C#
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//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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namespace System.ServiceModel.Diagnostics
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{
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using Microsoft.Win32.SafeHandles;
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using System.Runtime.InteropServices;
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using System.Runtime.Versioning;
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using System.Globalization;
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using System.Diagnostics;
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using System.Security;
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using System.Runtime;
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[Fx.Tag.SecurityNote(Critical = "Usage of SafeHandleZeroOrMinusOneIsInvalid, which is protected by a LinkDemand and InheritanceDemand")]
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[SecurityCritical]
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sealed class SafeEventLogWriteHandle : SafeHandleZeroOrMinusOneIsInvalid
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{
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// Note: RegisterEventSource returns 0 on failure
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[Fx.Tag.SecurityNote(Critical = "Usage of SafeHandleZeroOrMinusOneIsInvalid, which is protected by a LinkDemand and InheritanceDemand")]
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[SecurityCritical]
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SafeEventLogWriteHandle() : base(true) { }
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[ResourceConsumption(ResourceScope.Machine)]
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[Fx.Tag.SecurityNote(Critical = "Usage of SafeHandleZeroOrMinusOneIsInvalid, which is protected by a LinkDemand and InheritanceDemand")]
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[SecurityCritical]
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internal static SafeEventLogWriteHandle RegisterEventSource(string uncServerName, string sourceName)
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{
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SafeEventLogWriteHandle retval = NativeMethods.RegisterEventSource(uncServerName, sourceName);
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int error = Marshal.GetLastWin32Error();
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if (retval.IsInvalid)
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{
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Debug.Print("SafeEventLogWriteHandle::RegisterEventSource[" + uncServerName + ", " + sourceName + "] Failed. Last Error: " +
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error.ToString(CultureInfo.InvariantCulture));
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}
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return retval;
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}
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[DllImport("advapi32", SetLastError = true)]
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[ResourceExposure(ResourceScope.None)]
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private static extern bool DeregisterEventSource(IntPtr hEventLog);
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#pragma warning disable 56523
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[Fx.Tag.SecurityNote(Critical = "Usage of SafeHandleZeroOrMinusOneIsInvalid, which is protected by a LinkDemand and InheritanceDemand")]
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[SecurityCritical]
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override protected bool ReleaseHandle()
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{
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return DeregisterEventSource(this.handle);
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}
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#pragma warning restore 56523
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}
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}
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