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211 lines
8.2 KiB
C#
211 lines
8.2 KiB
C#
// This code is derived from jcifs smb client library <jcifs at samba dot org>
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// Ported by J. Arturo <webmaster at komodosoft dot net>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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using System;
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using SharpCifs.Util.Sharpen;
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namespace SharpCifs.Smb
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{
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/// <summary>
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/// This class will allow a Java program to read and write data to Named
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/// Pipes and Transact NamedPipes.
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/// </summary>
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/// <remarks>
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/// This class will allow a Java program to read and write data to Named
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/// Pipes and Transact NamedPipes.
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/// <p>There are three Win32 function calls provided by the Windows SDK
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/// that are important in the context of using jCIFS. They are:
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/// <ul>
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/// <li> <code>CallNamedPipe</code> A message-type pipe call that opens,
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/// writes to, reads from, and closes the pipe in a single operation.
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/// <li> <code>TransactNamedPipe</code> A message-type pipe call that
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/// writes to and reads from an existing pipe descriptor in one operation.
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/// <li> <code>CreateFile</code>, <code>ReadFile</code>,
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/// <code>WriteFile</code>, and <code>CloseFile</code> A byte-type pipe can
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/// be opened, written to, read from and closed using the standard Win32
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/// file operations.
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/// </ul>
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/// <p>The jCIFS API maps all of these operations into the standard Java
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/// <code>XxxputStream</code> interface. A special <code>PIPE_TYPE</code>
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/// flags is necessary to distinguish which type of Named Pipe behavior
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/// is desired.
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/// <p><table border="1" cellpadding="3" cellspacing="0" width="100%">
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/// <tr bgcolor="#ccccff">
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/// <td colspan="2"><b><code>SmbNamedPipe</code> Constructor Examples</b></td>
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/// <tr><td width="20%"><b>Code Sample</b></td><td><b>Description</b></td></tr>
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/// <tr><td width="20%"><pre>
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/// new SmbNamedPipe( "smb://server/IPC$/PIPE/foo",
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/// SmbNamedPipe.PIPE_TYPE_RDWR |
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/// SmbNamedPipe.PIPE_TYPE_CALL );
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/// </pre></td><td>
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/// Open the Named Pipe foo for reading and writing. The pipe will behave like the <code>CallNamedPipe</code> interface.
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/// </td></tr>
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/// <tr><td width="20%"><pre>
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/// new SmbNamedPipe( "smb://server/IPC$/foo",
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/// SmbNamedPipe.PIPE_TYPE_RDWR |
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/// SmbNamedPipe.PIPE_TYPE_TRANSACT );
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/// </pre></td><td>
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/// Open the Named Pipe foo for reading and writing. The pipe will behave like the <code>TransactNamedPipe</code> interface.
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/// </td></tr>
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/// <tr><td width="20%"><pre>
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/// new SmbNamedPipe( "smb://server/IPC$/foo",
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/// SmbNamedPipe.PIPE_TYPE_RDWR );
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/// </pre></td><td>
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/// Open the Named Pipe foo for reading and writing. The pipe will
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/// behave as though the <code>CreateFile</code>, <code>ReadFile</code>,
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/// <code>WriteFile</code>, and <code>CloseFile</code> interface was
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/// being used.
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/// </td></tr>
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/// </table>
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/// <p>See <a href="../../../pipes.html">Using jCIFS to Connect to Win32
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/// Named Pipes</a> for a detailed description of how to use jCIFS with
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/// Win32 Named Pipe server processes.
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/// </remarks>
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public class SmbNamedPipe : SmbFile
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{
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/// <summary>The pipe should be opened read-only.</summary>
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/// <remarks>The pipe should be opened read-only.</remarks>
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public const int PipeTypeRdonly = ORdonly;
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/// <summary>The pipe should be opened only for writing.</summary>
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/// <remarks>The pipe should be opened only for writing.</remarks>
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public const int PipeTypeWronly = OWronly;
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/// <summary>The pipe should be opened for both reading and writing.</summary>
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/// <remarks>The pipe should be opened for both reading and writing.</remarks>
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public const int PipeTypeRdwr = ORdwr;
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/// <summary>Pipe operations should behave like the <code>CallNamedPipe</code> Win32 Named Pipe function.
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/// </summary>
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/// <remarks>Pipe operations should behave like the <code>CallNamedPipe</code> Win32 Named Pipe function.
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/// </remarks>
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public const int PipeTypeCall = unchecked(0x0100);
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/// <summary>Pipe operations should behave like the <code>TransactNamedPipe</code> Win32 Named Pipe function.
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/// </summary>
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/// <remarks>Pipe operations should behave like the <code>TransactNamedPipe</code> Win32 Named Pipe function.
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/// </remarks>
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public const int PipeTypeTransact = unchecked(0x0200);
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public const int PipeTypeDceTransact = unchecked(0x0200) | unchecked(0x0400);
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internal InputStream PipeIn;
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internal OutputStream PipeOut;
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internal int PipeType;
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/// <summary>
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/// Open the Named Pipe resource specified by the url
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/// parameter.
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/// </summary>
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/// <remarks>
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/// Open the Named Pipe resource specified by the url
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/// parameter. The pipeType parameter should be at least one of
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/// the <code>PIPE_TYPE</code> flags combined with the bitwise OR
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/// operator <code>|</code>. See the examples listed above.
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/// </remarks>
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/// <exception cref="System.UriFormatException"></exception>
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/// <exception cref="UnknownHostException"></exception>
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public SmbNamedPipe(string url, int pipeType) : base(url)
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{
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this.PipeType = pipeType;
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Type = TypeNamedPipe;
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}
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/// <exception cref="System.UriFormatException"></exception>
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/// <exception cref="UnknownHostException"></exception>
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public SmbNamedPipe(string url, int pipeType, NtlmPasswordAuthentication auth) :
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base(url, auth)
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{
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this.PipeType = pipeType;
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Type = TypeNamedPipe;
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}
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/// <exception cref="System.UriFormatException"></exception>
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/// <exception cref="UnknownHostException"></exception>
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public SmbNamedPipe(Uri url, int pipeType, NtlmPasswordAuthentication auth) : base
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(url, auth)
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{
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this.PipeType = pipeType;
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Type = TypeNamedPipe;
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}
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/// <summary>
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/// Return the <code>InputStream</code> used to read information
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/// from this pipe instance.
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/// </summary>
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/// <remarks>
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/// Return the <code>InputStream</code> used to read information
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/// from this pipe instance. Presumably data would first be written
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/// to the <code>OutputStream</code> associated with this Named
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/// Pipe instance although this is not a requirement (e.g. a
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/// read-only named pipe would write data to this stream on
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/// connection). Reading from this stream may block. Therefore it
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/// may be necessary that an addition thread be used to read and
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/// write to a Named Pipe.
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/// </remarks>
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/// <exception cref="System.IO.IOException"></exception>
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public virtual InputStream GetNamedPipeInputStream()
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{
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if (PipeIn == null)
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{
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if ((PipeType & PipeTypeCall) == PipeTypeCall || (PipeType & PipeTypeTransact
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) == PipeTypeTransact)
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{
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PipeIn = new TransactNamedPipeInputStream(this);
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}
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else
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{
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PipeIn = new SmbFileInputStream(this, (PipeType & unchecked((int)(0xFFFF00FF))) |
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OExcl);
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}
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}
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return PipeIn;
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}
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/// <summary>
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/// Return the <code>OutputStream</code> used to write
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/// information to this pipe instance.
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/// </summary>
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/// <remarks>
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/// Return the <code>OutputStream</code> used to write
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/// information to this pipe instance. The act of writing data
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/// to this stream will result in response data recieved in the
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/// <code>InputStream</code> associated with this Named Pipe
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/// instance (unless of course it does not elicite a response or the pipe is write-only).
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/// </remarks>
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/// <exception cref="System.IO.IOException"></exception>
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public virtual OutputStream GetNamedPipeOutputStream()
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{
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if (PipeOut == null)
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{
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if ((PipeType & PipeTypeCall) == PipeTypeCall || (PipeType & PipeTypeTransact
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) == PipeTypeTransact)
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{
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PipeOut = new TransactNamedPipeOutputStream(this);
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}
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else
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{
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PipeOut = new SmbFileOutputStream(this, false, (PipeType & unchecked((int)(0xFFFF00FF
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))) | OExcl);
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}
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}
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return PipeOut;
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}
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}
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}
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