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GetNtNamedPipeFileCmdlet.cs
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GetNtNamedPipeFileCmdlet.cs
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// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
using NtApiDotNet;
using System.Management.Automation;
namespace NtObjectManager.Cmdlets.Object
{
/// <summary>
/// <para type="synopsis">Opens an existing NT named pipe file object.</para>
/// <para type="description">This cmdlet opens an existing NT named pipe file object. The absolute path to the object in the NT object manager name space can be specified.
/// It's also possible to open the object relative to an existing object by specified the -Root parameter. This only works if the caller has permission to access the
/// pipe server object and the maximum number of instances is not exceeded.</para>
/// </summary>
/// <example>
/// <code>$obj = Get-NtNamedPipeFile \??\pipe\abc</code>
/// <para>Opens an existing file named pipe object with an absolute path.</para>
/// </example>
/// <example>
/// <code>$obj = Get-NtNamedPipeFile \\.\pipe\abc -Win32Path</code>
/// <para>Opens an existing file named pipe object with an absolute win32 path.</para>
/// </example>
/// <example>
/// <code>$obj = Get-NtNamedPipeFile \??\pipe\abc -Disposition OpenIf</code>
/// <para>Opens an existing file named pipe object with an absolute path. If the file already exists then open it rather than failing.</para>
/// </example>
/// <para type="link">about_ManagingNtObjectLifetime</para>
[Cmdlet(VerbsCommon.Get, "NtNamedPipeFile")]
[OutputType(typeof(NtFile))]
public class GetNtNamedPipeFileCmdlet : GetNtFileCmdlet
{
/// <summary>
/// Method to create an object from a set of object attributes.
/// </summary>
/// <param name="obj_attributes">The object attributes to create/open from.</param>
/// <returns>The newly created object.</returns>
protected override object CreateObject(ObjectAttributes obj_attributes)
{
return NtFile.CreateNamedPipe(obj_attributes, Access, ShareMode, Options, FileDisposition.Open, NamedPipeType.Bytestream,
NamedPipeReadMode.ByteStream, NamedPipeCompletionMode.CompleteOperation, 0, 0, 0, NtWaitTimeout.FromMilliseconds(0));
}
/// <summary>
/// Constructor
/// </summary>
public GetNtNamedPipeFileCmdlet()
{
ShareMode = FileShareMode.Read | FileShareMode.Write;
Options = FileOpenOptions.SynchronousIoNonAlert;
Access = FileAccessRights.GenericRead | FileAccessRights.GenericWrite | FileAccessRights.Synchronize;
}
}
}