685 lines
29 KiB
C#
685 lines
29 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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// ==--==
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//============================================================
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//
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// Class: Directory
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//
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// Purpose: Exposes routines for enumerating through a
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// directory.
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//
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//===========================================================
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using System;
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using System.Collections;
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using Microsoft.Singularity;
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using System.Text;
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using System.Runtime.InteropServices;
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using System.Globalization;
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using Microsoft.Singularity.Directory;
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using FileSystem.Utils;
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namespace System.IO
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{
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory"]/*' />
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public sealed class Directory {
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private Directory()
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{
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetParent"]/*' />
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public static DirectoryInfo GetParent(String path)
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{
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if (path == null)
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throw new ArgumentNullException("path");
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if (path.Length == 0)
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throw new ArgumentException("Argument_PathEmpty", "path");
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String fullPath = Path.GetFullPathInternal(path);
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String s = Path.GetDirectoryName(fullPath);
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if (s == null)
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return null;
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return new DirectoryInfo(s);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.CreateDirectory"]/*' />
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public static DirectoryInfo CreateDirectory(String path) {
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if (path == null)
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throw new ArgumentNullException("path");
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if (path.Length == 0)
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throw new ArgumentException("Argument_PathEmpty");
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String fullPath = Path.GetFullPathInternal(path);
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// You need read access to the directory to be returned back and write access to all the directories
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// that you need to create. If we fail any security checks we will not create any directories at all.
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// We attempt to create directories only after all the security checks have passed. This is avoid doing
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// a demand at every level.
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InternalCreateDirectory(fullPath,path);
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return new DirectoryInfo(fullPath, false);
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}
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internal static void InternalCreateDirectory(String! fullPath, String path) {
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int length = fullPath.Length;
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// We need to trim the trailing slash or the code will try to create 2 directories of the same name.
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if (length >= 2 && Path.IsDirectorySeparator(fullPath[length - 1]))
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length--;
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int i = Path.GetRootLength(fullPath);
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// For UNC paths that are only // or ///
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if (length == 2 && Path.IsDirectorySeparator(fullPath[1]))
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throw new IOException(String.Format("IO.IO_CannotCreateDirectory",path));
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ArrayList list = new ArrayList();
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while (i < length) {
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i++;
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while (i < length && fullPath[i] != Path.DirectorySeparatorChar && fullPath[i] != Path.AltDirectorySeparatorChar) i++;
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String dir = fullPath.Substring(0, i);
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if (!InternalExists(dir)) { // Create only the ones missing
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list.Add(dir);
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}
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}
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if (list.Count != 0) {
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String [] securityList = (String[])list.ToArray(typeof(String));
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for (int j = 0; j < securityList.Length; j++)
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securityList[j] += "\\."; // leafs will never has a slash at the end
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}
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// We need this check to mask OS differences
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// Handle CreateDirectory("X:\\") when X: doesn't exist. Similarly for n/w paths.
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String root = InternalGetDirectoryRoot(fullPath);
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if (!InternalExists(root)) {
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// Extract the root from the passed in path again for security.
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__Error.WinIOError(Native.ERROR_PATH_NOT_FOUND, InternalGetDirectoryRoot(path));
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}
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bool r = true;
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int firstError = 0;
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// If all the security checks succeeded create all the directories
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for (int j = 0; j < list.Count; j++) {
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String name = (String!)list[j];
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if (name.Length > Path.MAX_DIRECTORY_PATH)
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throw new PathTooLongException("IO.PathTooLong");
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r = Native.CreateDirectory(name, 0);
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if (!r && (firstError == 0)) {
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firstError = Native.ERROR_PATH_EXISTS;
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}
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}
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if (!r && (firstError != 0)) {
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__Error.WinIOError(firstError, path);
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}
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}
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// Tests if the given path refers to an existing DirectoryInfo on disk.
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//
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// Your application must have Read permission to the directory's
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// contents.
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//
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.Exists"]/*' />
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public static bool Exists(String! path)
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{
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try {
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path = Path.GetFullPathInternal(path);
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if (path == null) return false;
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if (path.Length == 0) return false;
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bool isDir;
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int ok = DirectoryUtils.PathIsDirectory(path, out isDir);
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if (ok != 0) return false;
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return isDir;
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}
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catch (ArgumentException) {
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}
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catch (NotSupportedException) {
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}
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return false;
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}
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// Determine whether path describes an existing directory
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// on disk, avoiding security checks.
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internal static bool InternalExists(String path)
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{
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Native.FILE_ATTRIBUTE_DATA data = new Native.FILE_ATTRIBUTE_DATA();
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int dataInitialised = File.FillAttributeInfo(path,ref data);
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if (dataInitialised != 0)
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return false;
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return data.fileAttributes != -1 && (data.fileAttributes & Native.FILE_ATTRIBUTE_DIRECTORY) != 0;
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.SetCreationTime"]/*' />
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public static void SetCreationTime(String! path, DateTime creationTime)
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{
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SetCreationTimeUtc(path, creationTime.ToUniversalTime());
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.SetCreationTimeUtc"]/*' />
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public static void SetCreationTimeUtc(String! path, DateTime creationTimeUtc)
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{
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IntPtr handle = Directory.OpenHandle(path);
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bool r = Native.SetFileTime(handle, new long[] {creationTimeUtc.ToFileTimeUtc()}, null, null);
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if (!r) {
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Native.CloseHandle(handle);
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__Error.WinIOError(1, path);
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}
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Native.CloseHandle(handle);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetCreationTimeUtc"]/*' />
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public static DateTime GetCreationTimeUtc(String! path)
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{
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return File.GetCreationTimeUtc(path);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.SetLastWriteTimeUtc"]/*' />
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public static void SetLastWriteTimeUtc(String! path, DateTime lastWriteTimeUtc)
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{
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IntPtr handle = Directory.OpenHandle(path);
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bool r = Native.SetFileTime(handle, null, null, new long[] {lastWriteTimeUtc.ToFileTimeUtc()});
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if (!r) {
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Native.CloseHandle(handle);
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__Error.WinIOError(1, path);
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}
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Native.CloseHandle(handle);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetLastWriteTimeUtc"]/*' />
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public static DateTime GetLastWriteTimeUtc(String! path)
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{
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return File.GetLastWriteTimeUtc(path);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.SetLastAccessTimeUtc"]/*' />
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public static void SetLastAccessTimeUtc(String! path, DateTime lastAccessTimeUtc)
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{
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IntPtr handle = Directory.OpenHandle(path);
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bool r = Native.SetFileTime(handle, null, new long[] {lastAccessTimeUtc.ToFileTimeUtc()}, null);
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if (!r) {
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Native.CloseHandle(handle);
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__Error.WinIOError(1, path);
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}
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Native.CloseHandle(handle);
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetLastAccessTimeUtc"]/*' />
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public static DateTime GetLastAccessTimeUtc(String! path)
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{
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return File.GetLastAccessTimeUtc(path);
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}
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// Returns an array of Files in the DirectoryInfo specified by path
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetFiles"]/*' />
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public static String[] GetFiles(String path)
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{
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return GetFiles(path,"*");
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}
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// Returns an array of Files in the current DirectoryInfo matching the
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// given search criteria (ie, "*.txt").
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetFiles1"]/*' />
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public static String[] GetFiles(String path,String searchPattern)
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{
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if (path == null)
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throw new ArgumentNullException("path");
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if (searchPattern == null)
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throw new ArgumentNullException("searchPattern");
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searchPattern = searchPattern.TrimEnd();
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if (searchPattern.Length == 0)
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return new String[0];
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// Must fully qualify the path for the security check
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String fullPath = Path.GetFullPathInternal(path);
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String searchPath = Path.GetDirectoryName(searchPattern);
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if (searchPath != null && searchPath != String.Empty) // For filters like foo\*.cs we need to verify if the directory foo is not denied access.
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{
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path = Path.Combine(path,searchPath); // Need to add the searchPath to return correct path and for right security checks
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}
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// Note - fileNames returned by InternalGetFiles are not fully qualified.
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String [] fileNames = InternalGetFiles(fullPath, path, searchPattern);
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for (int i = 0; i < fileNames.Length; i++)
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fileNames[i] = Path.InternalCombine(path, fileNames[i]);
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return fileNames;
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}
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// Internal helper function with no security checks
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// Note - fileNames returned by InternalGetFiles are not fully qualified.
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// Path should be fully qualified. userPath is used in exceptions.
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internal static String[]! InternalGetFiles(String path, String userPath, String searchPattern)
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{
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String fullPath = Path.InternalCombine(path, searchPattern);
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String[] fileNames = InternalGetFileDirectoryNames(fullPath, userPath, true);
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return fileNames;
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}
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// Returns an array of Directories in the current directory.
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetDirectories"]/*' />
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public static String[] GetDirectories(String path)
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{
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return GetDirectories(path,"*");
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}
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// Returns an array of Directories in the current DirectoryInfo matching the
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// given search criteria (ie, "*.txt").
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetDirectories1"]/*' />
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public static String[] GetDirectories(String path,String searchPattern)
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{
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if (path == null)
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throw new ArgumentNullException("path");
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if (searchPattern == null)
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throw new ArgumentNullException("searchPattern");
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searchPattern = searchPattern.TrimEnd();
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if (searchPattern.Length == 0)
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return new String[0];
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// Must fully qualify the path for the security check
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String fullPath = Path.GetFullPathInternal(path);
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String searchPath = Path.GetDirectoryName(searchPattern);
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if (searchPath != null && searchPath != String.Empty) // For filters like foo\*.cs we need to verify if the directory foo is not denied access.
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{
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path = Path.Combine(path,searchPath); // Need to add the searchPath to return correct path and for right security checks
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}
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String [] dirNames = InternalGetDirectories(fullPath, path, searchPattern);
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for (int i = 0; i < dirNames.Length; i++)
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dirNames[i] = Path.InternalCombine(path, dirNames[i]);
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return dirNames;
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}
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// Internal helper function that has no security checks
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// Note - InternalGetDirectories returns non-qualified directory names.
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// Path should be fully qualified. userPath is used in exceptions.
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internal static String[]! InternalGetDirectories(String path, String userPath, String searchPattern)
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{
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String fullPath = Path.InternalCombine(path, searchPattern);
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String[] dirNames = InternalGetFileDirectoryNames(fullPath, userPath, false);
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return dirNames;
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}
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// Returns an array of strongly typed FileSystemInfo entries in the path
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetFileSystemEntries"]/*' />
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public static String[] GetFileSystemEntries(String path)
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{
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return GetFileSystemEntries(path,"*");
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}
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// Returns an array of strongly typed FileSystemInfo entries in the path with the
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// given search criteria (ie, "*.txt"). We disallow .. as a part of the search criteria
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetFileSystemEntries1"]/*' />
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public static String[] GetFileSystemEntries(String path,String searchPattern)
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{
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if (path == null)
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throw new ArgumentNullException("path");
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if (searchPattern == null)
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throw new ArgumentNullException("searchPattern");
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searchPattern = searchPattern.TrimEnd();
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if (searchPattern.Length == 0)
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return new String[0];
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// Must fully qualify the path for the security check
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String fullPath = Path.GetFullPathInternal(path);
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String searchPath = Path.GetDirectoryName(searchPattern);
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if (searchPath != null && searchPath != String.Empty) // For filters like foo\*.cs we need to verify if the directory foo is not denied access.
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{
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path = Path.Combine(path,searchPath); // Need to add the searchPath to return correct path and for right security checks
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}
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String [] dirs = InternalGetDirectories(fullPath, path, searchPattern);
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String [] files = InternalGetFiles(fullPath, path, searchPattern);
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String [] fileSystemEntries = new String[dirs.Length + files.Length];
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int count = 0;
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for (int i = 0; i < dirs.Length; i++)
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fileSystemEntries[count++] = Path.InternalCombine(path, dirs[i]);
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for (int i = 0; i < files.Length; i++)
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fileSystemEntries[count++] = Path.InternalCombine(path, files[i]);
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return fileSystemEntries;
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}
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// Private helper function that does not do any security checks
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internal static String[]! InternalGetFileDirectoryNames(String! fullPath, String userPath, bool file)
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{
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// If path ends in a trailing slash (\), append a * or we'll
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// get a "Cannot find the file specified" exception
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char lastChar = fullPath[fullPath.Length-1];
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if (lastChar == Path.DirectorySeparatorChar || lastChar == Path.AltDirectorySeparatorChar || lastChar == Path.VolumeSeparatorChar)
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fullPath = fullPath + '*';
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String[] list = new String[10];
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int listSize = 0;
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Native.FIND_DATA data = new Native.FIND_DATA();
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// Open a Find handle (Win32 is weird)
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IntPtr hnd = Native.FindFirstFile(fullPath, out data);
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if (hnd == IntPtr.Zero) {
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return new String[0];
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}
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// Keep asking for more matching files, adding file names to list
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int numEntries = 0; // Number of DirectoryInfo entities we see.
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do {
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assert data != null; // implied by result of FindFirst/Next not being Zero
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bool includeThis; // Should this file/DirectoryInfo be included in the output?
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if (file)
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includeThis = (0==(data.dwFileAttributes & Native.FILE_ATTRIBUTE_DIRECTORY));
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else {
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includeThis = (0!=(data.dwFileAttributes & Native.FILE_ATTRIBUTE_DIRECTORY));
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// Don't add "." nor ".."
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if (includeThis && (data.cFileName.Equals(".") || data.cFileName.Equals("..")))
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includeThis = false;
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}
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if (includeThis) {
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numEntries++;
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if (listSize == list.Length) {
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String[] newList = new String[list.Length*2];
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Array.Copy(list, 0, newList, 0, listSize);
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list = newList;
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}
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list[listSize++] = data.cFileName;
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}
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} while (Native.FindNextFile(hnd, out data));
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// Make sure we quit with a sensible error.
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Native.FindClose(hnd); // Close Find handle in all cases.
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// Check for a string such as "C:\tmp", in which case we return
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// just the DirectoryInfo name. FindNextFile fails first time, and
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// data still contains a directory.
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// The above comment seems wrong. I don't see why data should still be
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// non-null here.
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assert data != null;
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if (!file && numEntries == 1 && (0!=(data.dwFileAttributes & Native.FILE_ATTRIBUTE_DIRECTORY))) {
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String[] sa = new String[1];
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sa[0] = data.cFileName;
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return sa;
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}
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// Return list of files/directories as an array of strings
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if (listSize == list.Length)
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return list;
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String[] items = new String[listSize];
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Array.Copy(list, 0, items, 0, listSize);
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return items;
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}
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// Retrieves the names of the logical drives on this machine in the
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// form "C:\".
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//
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// Your application must have System Info permission.
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//
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetLogicalDrives"]/*' />
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public static String[] GetLogicalDrives()
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{
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int drives = Native.GetLogicalDrives();
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if (drives == 0)
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__Error.WinIOError();
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uint d = (uint)drives;
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int count = 0;
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while (d != 0) {
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if (((int)d & 1) != 0) count++;
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d >>= 1;
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}
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String[] result = new String[count];
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char[] root = new char[] {'A', ':', '\\'};
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d = (uint)drives;
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count = 0;
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while (d != 0) {
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if (((int)d & 1) != 0) {
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result[count++] = new String(root);
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}
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d >>= 1;
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root[0]++;
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}
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return result;
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetDirectoryRoot"]/*' />
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public static String GetDirectoryRoot(String path) {
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if (path == null)
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throw new ArgumentNullException("path");
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String fullPath = Path.GetFullPathInternal(path);
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return fullPath.Substring(0, Path.GetRootLength(fullPath));
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}
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.InternalGetDirectoryRoot"]/*' />
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internal static String InternalGetDirectoryRoot(String path) {
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if (path == null) return null;
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return path.Substring(0, Path.GetRootLength(path));
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}
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//===============================CurrentDirectory===============================
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//Action: Provides a getter and setter for the current directory. The original
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// current DirectoryInfo is the one from which the process was started.
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//Returns: The current DirectoryInfo (from the getter). Void from the setter.
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//Arguments: The current DirectoryInfo to which to switch to the setter.
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//Exceptions:
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//==============================================================================
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//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.GetCurrentDirectory"]/*' />
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public static String GetCurrentDirectory()
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{
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StringBuilder sb = new StringBuilder(Path.MAX_PATH + 1);
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if (Native.GetCurrentDirectory(sb.Capacity, sb) == 0)
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System.IO.__Error.WinIOError();
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String currentDirectory = sb.ToString();
|
|
return currentDirectory;
|
|
}
|
|
|
|
//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.SetCurrentDirectory"]/*' />
|
|
public static void SetCurrentDirectory(String path)
|
|
{
|
|
if (path == null)
|
|
throw new ArgumentNullException("value");
|
|
if (path.Length == 0)
|
|
throw new ArgumentException("Argument_PathEmpty");
|
|
if (path.Length >= Path.MAX_PATH)
|
|
throw new PathTooLongException("IO.PathTooLong");
|
|
|
|
// This will have some huge effects on the rest of the runtime
|
|
// and every other application. Make sure app is highly trusted.
|
|
String fulldestDirName = Path.GetFullPathInternal(path);
|
|
|
|
// If path doesn't exist, this sets last error to 3 (Path not Found).
|
|
if (!Native.SetCurrentDirectory(fulldestDirName))
|
|
System.IO.__Error.WinIOError(1, path);
|
|
}
|
|
|
|
//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.Move"]/*' />
|
|
public static void Move(String sourceDirName,String destDirName) {
|
|
if (sourceDirName == null)
|
|
throw new ArgumentNullException("sourceDirName");
|
|
if (sourceDirName.Length == 0)
|
|
throw new ArgumentException("Argument_EmptyFileName", "sourceDirName");
|
|
|
|
if (destDirName == null)
|
|
throw new ArgumentNullException("destDirName");
|
|
if (destDirName.Length == 0)
|
|
throw new ArgumentException("Argument_EmptyFileName", "destDirName");
|
|
|
|
String fullsourceDirName = Path.GetFullPathInternal(sourceDirName);
|
|
String fulldestDirName = Path.GetFullPathInternal(destDirName);
|
|
|
|
String sourcePath;
|
|
if (fullsourceDirName.EndsWith('\\'))
|
|
sourcePath = fullsourceDirName;
|
|
else
|
|
sourcePath = fullsourceDirName + "\\";
|
|
|
|
String destPath;
|
|
if (fulldestDirName.EndsWith('\\'))
|
|
destPath = fulldestDirName;
|
|
else
|
|
destPath = fulldestDirName + "\\";
|
|
|
|
if (CompareInfo.Compare(sourcePath, destPath, CompareOptions.IgnoreCase) == 0)
|
|
throw new IOException("IO.IO_SourceDestMustBeDifferent");
|
|
|
|
String sourceRoot = Path.GetPathRoot(sourcePath);
|
|
String destinationRoot = Path.GetPathRoot(destPath);
|
|
if (CompareInfo.Compare(sourceRoot, destinationRoot, CompareOptions.IgnoreCase) != 0)
|
|
throw new IOException("IO.IO_SourceDestMustHaveSameRoot");
|
|
|
|
if (!Native.MoveFile(sourceDirName, destDirName)) {
|
|
__Error.WinIOError(1,String.Empty);
|
|
}
|
|
}
|
|
|
|
//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.Delete"]/*' />
|
|
public static void Delete(String! path)
|
|
{
|
|
String fullPath = Path.GetFullPathInternal(path);
|
|
Delete(fullPath, path, false);
|
|
}
|
|
|
|
//| <include file='doc\Directory.uex' path='docs/doc[@for="Directory.Delete1"]/*' />
|
|
public static void Delete(String! path, bool recursive)
|
|
{
|
|
String fullPath = Path.GetFullPathInternal(path);
|
|
Delete(fullPath, path, recursive);
|
|
}
|
|
|
|
// Called from DirectoryInfo as well. FullPath is fully qualified,
|
|
// while the user path is used for feedback in exceptions.
|
|
internal static void Delete(String fullPath, String userPath, bool recursive)
|
|
{
|
|
DeleteHelper(fullPath, userPath, recursive);
|
|
}
|
|
|
|
// Note that fullPath is fully qualified, while userPath may be
|
|
// relative. Use userPath for all exception messages to avoid leaking
|
|
// fully qualified path information.
|
|
private static void DeleteHelper(String fullPath, String userPath, bool recursive)
|
|
{
|
|
bool r;
|
|
Exception ex = null;
|
|
ErrorCode error;
|
|
|
|
if (recursive) {
|
|
Native.FIND_DATA data = new Native.FIND_DATA();
|
|
|
|
// Open a Find handle (Win32 is weird)
|
|
IntPtr hnd = Native.FindFirstFile(fullPath+Path.DirectorySeparatorChar+"*", out data);
|
|
if (hnd == IntPtr.Zero) {
|
|
__Error.WinIOError(1, userPath);
|
|
}
|
|
|
|
do {
|
|
assert data != null; // implied by FindFirst/NextFile and return status
|
|
bool isDir = (0!=(data.dwFileAttributes & Native.FILE_ATTRIBUTE_DIRECTORY));
|
|
if (isDir) {
|
|
if (data.cFileName.Equals(".") || data.cFileName.Equals(".."))
|
|
continue;
|
|
|
|
// recurse
|
|
String newFullPath = Path.InternalCombine(fullPath, data.cFileName);
|
|
String newUserPath = Path.InternalCombine(userPath, data.cFileName);
|
|
try {
|
|
DeleteHelper(newFullPath, newUserPath, recursive);
|
|
}
|
|
catch (Exception e) {
|
|
if (ex == null) {
|
|
ex = e;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
String fileName = fullPath + Path.DirectorySeparatorChar + data.cFileName;
|
|
r = Native.DeleteFile(fileName, out error);
|
|
if (!r) {
|
|
// __Error.WinIOError(1, data.cFileName);
|
|
__Error.SingularityIOError(error,data.cFileName);
|
|
}
|
|
}
|
|
} while (Native.FindNextFile(hnd, out data));
|
|
|
|
// Make sure we quit with a sensible error.
|
|
Native.FindClose(hnd); // Close Find handle in all cases.
|
|
if (ex != null)
|
|
throw ex;
|
|
}
|
|
|
|
r = Native.RemoveDirectory(fullPath, out error);
|
|
if (!r)
|
|
//__Error.WinIOError(1, userPath);
|
|
__Error.SingularityIOError(error,fullPath);
|
|
}
|
|
|
|
|
|
internal static void VerifyDriveExists(String! root)
|
|
{
|
|
int drives = Native.GetLogicalDrives();
|
|
if (drives == 0)
|
|
__Error.WinIOError();
|
|
uint d = (uint)drives;
|
|
char drive = Char.ToLower(root[0]);
|
|
if ((d & (1 << (drive - 'a'))) == 0)
|
|
throw new DirectoryNotFoundException(String.Format("IO.DriveNotFound_Drive", root));
|
|
}
|
|
|
|
|
|
private static IntPtr OpenHandle(String! path)
|
|
{
|
|
String fullPath = Path.GetFullPathInternal(path);
|
|
String root = Path.GetPathRoot(fullPath);
|
|
assert root != null;
|
|
if (root == fullPath && root[1] == Path.VolumeSeparatorChar)
|
|
throw new ArgumentException("Arg_PathIsVolume");
|
|
|
|
IntPtr handle = Native.CreateFile(
|
|
fullPath,
|
|
GENERIC_WRITE,
|
|
FILE_SHARE_WRITE|FILE_SHARE_DELETE,
|
|
OPEN_EXISTING,
|
|
FILE_FLAG_BACKUP_SEMANTICS
|
|
);
|
|
|
|
if (handle == IntPtr.Zero) {
|
|
__Error.WinIOError(1, path);
|
|
}
|
|
return handle;
|
|
}
|
|
|
|
private const int FILE_ATTRIBUTE_DIRECTORY = 0x00000010;
|
|
private const int GENERIC_WRITE = unchecked((int)0x40000000);
|
|
private const int FILE_SHARE_WRITE = 0x00000002;
|
|
private const int FILE_SHARE_DELETE = 0x00000004;
|
|
private const int OPEN_EXISTING = 0x00000003;
|
|
private const int FILE_FLAG_BACKUP_SEMANTICS = 0x02000000;
|
|
}
|
|
}
|