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208 lines
15 KiB
208 lines
15 KiB
/* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.InteropServices;
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using System.Security;
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using System.Text;
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namespace Alphaleonis.Win32.Filesystem
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{
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internal static partial class NativeMethods
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{
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/// <summary>
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/// Creates a new directory.
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/// <para>If the underlying file system supports security on files and directories,</para>
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/// <para>the function applies a specified security descriptor to the new directory.</para>
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/// </summary>
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/// <remarks>
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/// <para>Some file systems, such as the NTFS file system, support compression or encryption for individual files and
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/// directories.</para>
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/// <para>On volumes formatted for such a file system, a new directory inherits the compression and encryption attributes of its parent
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/// directory.</para>
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/// <para>An application can obtain a handle to a directory by calling <see cref="CreateFile"/> with the FILE_FLAG_BACKUP_SEMANTICS
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/// flag set.</para>
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/// <para>Minimum supported client: Windows XP [desktop apps | Windows Store apps]</para>
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/// <para>Minimum supported server: Windows Server 2003 [desktop apps | Windows Store apps]</para>
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/// </remarks>
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/// <param name="lpPathName">Full pathname of the file.</param>
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/// <param name="lpSecurityAttributes">The security attributes.</param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero. To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "CreateDirectoryW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool CreateDirectory([MarshalAs(UnmanagedType.LPWStr)] string lpPathName, [MarshalAs(UnmanagedType.LPStruct)] Security.NativeMethods.SecurityAttributes lpSecurityAttributes);
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/// <summary>
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/// Creates a new directory with the attributes of a specified template directory.
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/// <para>If the underlying file system supports security on files and directories,</para>
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/// <para>the function applies a specified security descriptor to the new directory.</para>
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/// <para>The new directory retains the other attributes of the specified template directory.</para>
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/// </summary>
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/// <remarks>
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/// <para>The CreateDirectoryEx function allows you to create directories that inherit stream information from other directories.</para>
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/// <para>This function is useful, for example, when you are using Macintosh directories, which have a resource stream</para>
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/// <para>that is needed to properly identify directory contents as an attribute.</para>
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/// <para>Some file systems, such as the NTFS file system, support compression or encryption for individual files and
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/// directories.</para>
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/// <para>On volumes formatted for such a file system, a new directory inherits the compression and encryption attributes of its parent
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/// directory.</para>
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/// <para>You can obtain a handle to a directory by calling the <see cref="CreateFile"/> function with the FILE_FLAG_BACKUP_SEMANTICS
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/// flag set.</para>
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/// <para>Minimum supported client: Windows XP [desktop apps only]</para>
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/// <para>Minimum supported server: Windows Server 2003 [desktop apps only]</para>
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/// </remarks>
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/// <param name="lpTemplateDirectory">Pathname of the template directory.</param>
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/// <param name="lpPathName">Full pathname of the file.</param>
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/// <param name="lpSecurityAttributes">The security attributes.</param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero (0). To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "CreateDirectoryExW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool CreateDirectoryEx([MarshalAs(UnmanagedType.LPWStr)] string lpTemplateDirectory, [MarshalAs(UnmanagedType.LPWStr)] string lpPathName, [MarshalAs(UnmanagedType.LPStruct)] Security.NativeMethods.SecurityAttributes lpSecurityAttributes);
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/// <summary>
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/// Creates a new directory as a transacted operation, with the attributes of a specified template directory.
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/// <para>If the underlying file system supports security on files and directories,</para>
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/// <para>the function applies a specified security descriptor to the new directory.</para>
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/// <para>The new directory retains the other attributes of the specified template directory.</para>
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/// </summary>
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/// <remarks>
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/// <para>The CreateDirectoryTransacted function allows you to create directories that inherit stream information from other
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/// directories.</para>
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/// <para>This function is useful, for example, when you are using Macintosh directories, which have a resource stream</para>
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/// <para>that is needed to properly identify directory contents as an attribute.</para>
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/// <para>Some file systems, such as the NTFS file system, support compression or encryption for individual files and
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/// directories.</para>
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/// <para>On volumes formatted for such a file system, a new directory inherits the compression and encryption attributes of its parent
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/// directory.</para>
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/// <para>You can obtain a handle to a directory by calling the <see cref="CreateFileTransacted"/> function with the
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/// FILE_FLAG_BACKUP_SEMANTICS flag set.</para>
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/// <para>Minimum supported client: Windows XP [desktop apps only]</para>
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/// <para>Minimum supported server: Windows Server 2003 [desktop apps only]</para>
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/// </remarks>
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/// <param name="lpTemplateDirectory">Pathname of the template directory.</param>
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/// <param name="lpNewDirectory">Pathname of the new directory.</param>
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/// <param name="lpSecurityAttributes">The security attributes.</param>
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/// <param name="hTransaction">The transaction.</param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero (0). To get extended error information, call GetLastError.</para>
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/// <para>This function fails with ERROR_EFS_NOT_ALLOWED_IN_TRANSACTION if you try to create a</para>
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/// <para>child directory with a parent directory that has encryption disabled.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "CreateDirectoryTransactedW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool CreateDirectoryTransacted([MarshalAs(UnmanagedType.LPWStr)] string lpTemplateDirectory, [MarshalAs(UnmanagedType.LPWStr)] string lpNewDirectory, [MarshalAs(UnmanagedType.LPStruct)] Security.NativeMethods.SecurityAttributes lpSecurityAttributes, SafeHandle hTransaction);
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/// <summary>
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/// Retrieves the current directory for the current process.
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/// </summary>
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/// <remarks>
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/// <para>The RemoveDirectory function marks a directory for deletion on close.</para>
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/// <para>Therefore, the directory is not removed until the last handle to the directory is closed.</para>
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/// <para>RemoveDirectory removes a directory junction, even if the contents of the target are not empty;</para>
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/// <para>the function removes directory junctions regardless of the state of the target object.</para>
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/// <para>Minimum supported client: Windows XP [desktop apps | Windows Store apps]</para>
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/// <para>Minimum supported server: Windows Server 2003 [desktop apps | Windows Store apps]</para>
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/// </remarks>
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/// <param name="nBufferLength">The length of the buffer for the current directory string, in TCHARs. The buffer length must include room for a terminating null character.</param>
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/// <param name="lpBuffer">
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/// <para>A pointer to the buffer that receives the current directory string. This null-terminated string specifies the absolute path to the current directory.</para>
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/// <para>To determine the required buffer size, set this parameter to NULL and the nBufferLength parameter to 0.</para>
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/// </param>
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/// <returns>
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/// <para>If the function succeeds, the return value specifies the number of characters that are written to the buffer, not including the terminating null character.</para>
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/// <para>If the function fails, the return value is zero. To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Usage", "CA2205:UseManagedEquivalentsOfWin32Api")]
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetCurrentDirectoryW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.U4)]
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internal static extern uint GetCurrentDirectory([MarshalAs(UnmanagedType.U4)] uint nBufferLength, StringBuilder lpBuffer);
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/// <summary>
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/// Deletes an existing empty directory.
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/// </summary>
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/// <remarks>
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/// <para>The RemoveDirectory function marks a directory for deletion on close.</para>
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/// <para>Therefore, the directory is not removed until the last handle to the directory is closed.</para>
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/// <para>RemoveDirectory removes a directory junction, even if the contents of the target are not empty;</para>
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/// <para>the function removes directory junctions regardless of the state of the target object.</para>
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/// <para>Minimum supported client: Windows XP [desktop apps | Windows Store apps]</para>
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/// <para>Minimum supported server: Windows Server 2003 [desktop apps | Windows Store apps]</para>
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/// </remarks>
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/// <param name="lpPathName">Full pathname of the file.</param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero. To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "RemoveDirectoryW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool RemoveDirectory([MarshalAs(UnmanagedType.LPWStr)] string lpPathName);
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/// <summary>
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/// Deletes an existing empty directory as a transacted operation.
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/// </summary>
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/// <remarks>
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/// <para>The RemoveDirectoryTransacted function marks a directory for deletion on close.</para>
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/// <para>Therefore, the directory is not removed until the last handle to the directory is closed.</para>
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/// <para>RemoveDirectory removes a directory junction, even if the contents of the target are not empty;</para>
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/// <para>the function removes directory junctions regardless of the state of the target object.</para>
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/// <para>Minimum supported client: Windows Vista [desktop apps only]</para>
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/// <para>Minimum supported server: Windows Server 2008 [desktop apps only]</para>
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/// </remarks>
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/// <param name="lpPathName">Full pathname of the file.</param>
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/// <param name="hTransaction">The transaction.</param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero. To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "RemoveDirectoryTransactedW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool RemoveDirectoryTransacted([MarshalAs(UnmanagedType.LPWStr)] string lpPathName, SafeHandle hTransaction);
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/// <summary>
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/// Changes the current directory for the current process.
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/// </summary>
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/// <param name="lpPathName">
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/// <para>The path to the new current directory. This parameter may specify a relative path or a full path. In either case, the full path of the specified directory is calculated and stored as the current directory.</para>
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/// </param>
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/// <returns>
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/// <para>If the function succeeds, the return value is nonzero.</para>
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/// <para>If the function fails, the return value is zero. To get extended error information, call GetLastError.</para>
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/// </returns>
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[SuppressMessage("Microsoft.Usage", "CA2205:UseManagedEquivalentsOfWin32Api")]
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[SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
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[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "SetCurrentDirectoryW"), SuppressUnmanagedCodeSecurity]
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[return: MarshalAs(UnmanagedType.Bool)]
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internal static extern bool SetCurrentDirectory([MarshalAs(UnmanagedType.LPWStr)] string lpPathName);
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}
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}
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