internal static void Init(Scriptable scope, bool @sealed)
{
NativeError obj = new NativeError();
ScriptableObject.PutProperty(obj, "name", "Error");
ScriptableObject.PutProperty(obj, "message", string.Empty);
ScriptableObject.PutProperty(obj, "fileName", string.Empty);
ScriptableObject.PutProperty(obj, "lineNumber", Sharpen.Extensions.ValueOf(0));
obj.ExportAsJSClass(MAX_PROTOTYPE_ID, scope, @sealed);
}
public BackupStreamInfo ReadStreamInfo()
{
var sizeOf = Marshal.SizeOf(typeof(NativeMethods.WIN32_STREAM_ID));
using (var hBuf = new SafeGlobalMemoryBufferHandle(sizeOf))
{
uint numberOfBytesRead;
var success = NativeMethods.BackupRead(SafeFileHandle, hBuf, (uint)sizeOf, out numberOfBytesRead, false, _processSecurity, ref _context);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
if (numberOfBytesRead == 0)
{
return(null);
}
if (numberOfBytesRead < sizeOf)
{
throw new IOException(Resources.Read_Incomplete_Header);
}
var streamID = hBuf.PtrToStructure <NativeMethods.WIN32_STREAM_ID>(0);
var nameLength = (uint)Math.Min(streamID.dwStreamNameSize, hBuf.Capacity);
success = NativeMethods.BackupRead(SafeFileHandle, hBuf, nameLength, out numberOfBytesRead, false, _processSecurity, ref _context);
lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
var name = hBuf.PtrToStringUni(0, (int)nameLength / UnicodeEncoding.CharSize);
return(new BackupStreamInfo(streamID, name));
}
}
public FileSecurity GetAccessControl()
{
IntPtr pSidOwner, pSidGroup, pDacl, pSacl;
SafeGlobalMemoryBufferHandle pSecurityDescriptor;
uint lastError = SecurityNativeMethods.GetSecurityInfo(SafeFileHandle, ObjectType.FileObject,
SecurityInformation.Group | SecurityInformation.Owner | SecurityInformation.Label | SecurityInformation.Dacl | SecurityInformation.Sacl,
out pSidOwner, out pSidGroup, out pDacl, out pSacl, out pSecurityDescriptor);
try
{
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException((int)lastError);
}
if (pSecurityDescriptor != null && pSecurityDescriptor.IsInvalid)
{
pSecurityDescriptor.Close();
throw new IOException(Resources.Returned_Invalid_Security_Descriptor);
}
uint length = SecurityNativeMethods.GetSecurityDescriptorLength(pSecurityDescriptor);
byte[] managedBuffer = new byte[length];
// .CopyTo() does not work there?
if (pSecurityDescriptor != null)
{
pSecurityDescriptor.CopyTo(managedBuffer, 0, (int)length);
}
var fs = new FileSecurity();
fs.SetSecurityDescriptorBinaryForm(managedBuffer);
return(fs);
}
finally
{
if (pSecurityDescriptor != null)
{
pSecurityDescriptor.Close();
}
}
}
private void ThrowPossibleException(uint lastError, string pathLp)
{
switch (lastError)
{
case Win32Errors.ERROR_NO_MORE_FILES:
lastError = Win32Errors.NO_ERROR;
break;
case Win32Errors.ERROR_FILE_NOT_FOUND: // On files.
case Win32Errors.ERROR_PATH_NOT_FOUND: // On folders.
case Win32Errors.ERROR_NOT_READY: // DeviceNotReadyException: Floppy device or network drive not ready.
// MSDN: .NET 3.5+: DirectoryNotFoundException: Path is invalid, such as referring to an unmapped drive.
// Directory.Delete()
lastError = IsDirectory ? (int)Win32Errors.ERROR_PATH_NOT_FOUND : Win32Errors.ERROR_FILE_NOT_FOUND;
break;
//case Win32Errors.ERROR_DIRECTORY:
// // MSDN: .NET 3.5+: IOException: path is a file name.
// // Directory.EnumerateDirectories()
// // Directory.EnumerateFiles()
// // Directory.EnumerateFileSystemEntries()
// // Directory.GetDirectories()
// // Directory.GetFiles()
// // Directory.GetFileSystemEntries()
// break;
//case Win32Errors.ERROR_ACCESS_DENIED:
// // MSDN: .NET 3.5+: UnauthorizedAccessException: The caller does not have the required permission.
// break;
}
if (lastError != Win32Errors.NO_ERROR)
{
var regularPath = Path.GetCleanExceptionPath(pathLp);
// Pass control to the ErrorHandler when set.
if (null == ErrorHandler || !ErrorHandler((int)lastError, new Win32Exception((int)lastError).Message, regularPath))
{
// When the ErrorHandler returns false, thrown the Exception.
NativeError.ThrowException(lastError, regularPath);
}
}
}
internal static void ImportEncryptedFileRawCore(System.IO.Stream inputStream, string destinationFilePath, PathFormat pathFormat, NativeMethods.EncryptedFileRawMode mode)
{
string lpPath = Path.GetExtendedLengthPathCore(null, destinationFilePath, pathFormat, GetFullPathOptions.FullCheck | GetFullPathOptions.TrimEnd);
SafeEncryptedFileRawHandle context = null;
int errorCode = NativeMethods.OpenEncryptedFileRaw(lpPath, mode, out context);
try
{
if (errorCode != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(errorCode, null, destinationFilePath);
}
errorCode = NativeMethods.WriteEncryptedFileRaw((IntPtr pbData, IntPtr pvCallbackContext, ref uint ulLength) =>
{
try
{
byte[] buffer = new byte[ulLength];
ulLength = (uint)inputStream.Read(buffer, 0, (int)ulLength);
if (ulLength == 0)
{
return((int)Win32Errors.ERROR_SUCCESS);
}
Marshal.Copy(buffer, 0, pbData, (int)ulLength);
}
catch (Exception ex)
{
return(Marshal.GetHRForException(ex));
}
return((int)Win32Errors.ERROR_SUCCESS);
}, IntPtr.Zero, context);
if (errorCode != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(errorCode, null, destinationFilePath);
}
}
finally
{
if (context != null)
{
context.Dispose();
}
}
}
public static void SetVolumeMountPoint(string volumeMountPoint, string volumeGuid)
{
if (Utils.IsNullOrWhiteSpace(volumeMountPoint))
{
throw new ArgumentNullException("volumeMountPoint");
}
if (Utils.IsNullOrWhiteSpace(volumeGuid))
{
throw new ArgumentNullException("volumeGuid");
}
if (!volumeGuid.StartsWith(Path.VolumePrefix + "{", StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException(Resources.Not_A_Valid_Guid, "volumeGuid");
}
volumeMountPoint = Path.GetFullPathCore(null, volumeMountPoint, GetFullPathOptions.AsLongPath | GetFullPathOptions.AddTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
// This string must be of the form "\\?\Volume{GUID}\"
volumeGuid = Path.AddTrailingDirectorySeparator(volumeGuid, false);
// ChangeErrorMode is for the Win32 SetThreadErrorMode() method, used to suppress possible pop-ups.
using (new NativeMethods.ChangeErrorMode(NativeMethods.ErrorMode.FailCriticalErrors))
{
// SetVolumeMountPoint()
// 2014-01-29: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
// The string must end with a trailing backslash.
var success = NativeMethods.SetVolumeMountPoint(volumeMountPoint, volumeGuid);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
// If the lpszVolumeMountPoint parameter contains a path to a mounted folder,
// GetLastError returns ERROR_DIR_NOT_EMPTY, even if the directory is empty.
if (lastError != Win32Errors.ERROR_DIR_NOT_EMPTY)
{
NativeError.ThrowException(lastError, volumeGuid);
}
}
}
}
public FileSecurity GetAccessControl()
{
IntPtr pSidOwner, pSidGroup, pDacl, pSacl;
SafeGlobalMemoryBufferHandle pSecurityDescriptor;
var lastError = (int)SecurityNativeMethods.GetSecurityInfo(SafeFileHandle, SE_OBJECT_TYPE.SE_FILE_OBJECT, SECURITY_INFORMATION.GROUP_SECURITY_INFORMATION | SECURITY_INFORMATION.OWNER_SECURITY_INFORMATION | SECURITY_INFORMATION.LABEL_SECURITY_INFORMATION | SECURITY_INFORMATION.DACL_SECURITY_INFORMATION | SECURITY_INFORMATION.SACL_SECURITY_INFORMATION, out pSidOwner, out pSidGroup, out pDacl, out pSacl, out pSecurityDescriptor);
try
{
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(lastError);
}
if (null != pSecurityDescriptor && pSecurityDescriptor.IsInvalid)
{
pSecurityDescriptor.Close();
pSecurityDescriptor = null;
throw new IOException(new Win32Exception((int)Win32Errors.ERROR_INVALID_SECURITY_DESCR).Message);
}
var length = SecurityNativeMethods.GetSecurityDescriptorLength(pSecurityDescriptor);
var managedBuffer = new byte[length];
// .CopyTo() does not work there?
if (null != pSecurityDescriptor)
{
pSecurityDescriptor.CopyTo(managedBuffer, 0, (int)length);
}
var fs = new FileSecurity();
fs.SetSecurityDescriptorBinaryForm(managedBuffer);
return(fs);
}
finally
{
if (null != pSecurityDescriptor)
{
pSecurityDescriptor.Close();
}
}
}
internal static void SetFsoDateTimeInternal(bool isFolder, KernelTransaction transaction, string path, DateTime?creationTimeUtc, DateTime?lastAccessTimeUtc, DateTime?lastWriteTimeUtc, PathFormat pathFormat)
{
// Because we already check here, use false for CreateFileInternal() to prevent another check.
if (pathFormat == PathFormat.RelativePath)
{
Path.CheckValidPath(path, false, false);
}
using (SafeGlobalMemoryBufferHandle creationTime = SafeGlobalMemoryBufferHandle.FromLong(creationTimeUtc.HasValue ? creationTimeUtc.Value.ToFileTimeUtc() : (long?)null))
using (SafeGlobalMemoryBufferHandle lastAccessTime = SafeGlobalMemoryBufferHandle.FromLong(lastAccessTimeUtc.HasValue ? lastAccessTimeUtc.Value.ToFileTimeUtc() : (long?)null))
using (SafeGlobalMemoryBufferHandle lastWriteTime = SafeGlobalMemoryBufferHandle.FromLong(lastWriteTimeUtc.HasValue ? lastWriteTimeUtc.Value.ToFileTimeUtc() : (long?)null))
using (SafeFileHandle safeHandle = CreateFileInternal(transaction, path, isFolder ? ExtendedFileAttributes.BackupSemantics : ExtendedFileAttributes.Normal, null, FileMode.Open, FileSystemRights.WriteAttributes, FileShare.Delete | FileShare.Write, false, pathFormat))
if (!NativeMethods.SetFileTime(safeHandle, creationTime, lastAccessTime, lastWriteTime))
{
NativeError.ThrowException(path);
}
}
public static void SetCurrentVolumeLabel(string volumeName)
{
if (Utils.IsNullOrWhiteSpace(volumeName))
{
throw new ArgumentNullException("volumeName");
}
var success = NativeMethods.SetVolumeLabel(null, volumeName);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError, volumeName);
}
}
public static string GetLongFrom83ShortPath(string path)
{
System.Text.StringBuilder buffer = new System.Text.StringBuilder(path.Length);
int actualLength = NativeMethods.GetShortPathNameW(path, buffer, buffer.Capacity);
while (actualLength > buffer.Capacity)
{
buffer = new System.Text.StringBuilder(actualLength);
actualLength = NativeMethods.GetLongPathNameW(path, buffer, buffer.Capacity);
}
if (actualLength <= 0)
{
NativeError.ThrowException(path, path);
}
return(buffer.ToString());
}
public virtual void Unlock(long position, long length)
{
if (position < 0)
{
throw new ArgumentOutOfRangeException("position", position, Resources.BackupFileStream_Unlock_Backup_FileStream_Unlock_Position_must_not_be_negative_);
}
if (length < 0)
{
throw new ArgumentOutOfRangeException("length", length, Resources.BackupFileStream_Unlock_Backup_FileStream_Lock_Length_must_not_be_negative_);
}
if (!NativeMethods.UnlockFile(SafeFileHandle, NativeMethods.GetLowOrderDword(position), NativeMethods.GetHighOrderDword(position), NativeMethods.GetLowOrderDword(length), NativeMethods.GetHighOrderDword(length)))
{
NativeError.ThrowException(Marshal.GetLastWin32Error());
}
}
public long Skip(long bytes)
{
uint lowSought, highSought;
if (!NativeMethods.BackupSeek(SafeFileHandle, NativeMethods.GetLowOrderDword(bytes), NativeMethods.GetHighOrderDword(bytes), out lowSought, out highSought, ref _context))
{
int lastError = Marshal.GetLastWin32Error();
// Error Code 25 indicates a seek error, we just skip that here.
if (lastError != Win32Errors.NO_ERROR && lastError != Win32Errors.ERROR_SEEK)
{
NativeError.ThrowException(lastError);
}
}
return(NativeMethods.ToLong(highSought, lowSought));
}
internal static void ReplaceCore(string sourceFileName, string destinationFileName, string destinationBackupFileName, bool ignoreMetadataErrors, PathFormat pathFormat)
{
const GetFullPathOptions options = GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck;
var sourceFileNameLp = sourceFileName;
var destinationFileNameLp = destinationFileName;
if (pathFormat != PathFormat.LongFullPath)
{
sourceFileNameLp = Path.GetExtendedLengthPathCore(null, sourceFileName, pathFormat, options);
destinationFileNameLp = Path.GetExtendedLengthPathCore(null, destinationFileName, pathFormat, options);
}
// Pass null to the destinationBackupFileName parameter if you do not want to create a backup of the file being replaced.
var destinationBackupFileNameLp = null == destinationBackupFileName
? null
: Path.GetExtendedLengthPathCore(null, destinationBackupFileName, pathFormat, options);
const int replacefileWriteThrough = 1;
const int replacefileIgnoreMergeErrors = 2;
var dwReplaceFlags = (FileSystemRights)replacefileWriteThrough;
if (ignoreMetadataErrors)
{
dwReplaceFlags |= (FileSystemRights)replacefileIgnoreMergeErrors;
}
// ReplaceFile()
// 2013-01-13: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
// 2017-05-30: MSDN confirms LongPath usage: Starting with Windows 10, version 1607
var success = NativeMethods.ReplaceFile(destinationFileNameLp, sourceFileNameLp, destinationBackupFileNameLp, dwReplaceFlags, IntPtr.Zero, IntPtr.Zero);
var lastError = (uint)Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError, sourceFileNameLp, destinationFileNameLp);
}
}
private static void InvokeIoControlUnknownSize <T>(SafeFileHandle handle, uint controlCode, T input, uint increment = 128)
{
//byte[] output;
//uint bytesReturned;
var inputSize = (uint)Marshal.SizeOf(input);
var outputLength = increment;
do
{
var output = new byte[outputLength];
uint bytesReturned;
var success = NativeMethods.DeviceIoControlUnknownSize(handle, controlCode, input, inputSize, output, outputLength, out bytesReturned, IntPtr.Zero);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
switch ((uint)lastError)
{
case Win32Errors.ERROR_MORE_DATA:
case Win32Errors.ERROR_INSUFFICIENT_BUFFER:
outputLength += increment;
break;
default:
NativeError.ThrowException(lastError);
break;
}
}
else
{
break;
}
} while (true);
// 2017-06-28: Disabled; results are currently not used.
//// Return the result.
//if (output.Length == bytesReturned)
// return output;
//var res = new byte[bytesReturned];
//Array.Copy(output, res, bytesReturned);
//return res;
}
public long Skip(long bytes)
{
uint lowSought, highSought;
if (!NativeMethods.BackupSeek(mFileHandle, NativeMethods.GetLowOrderDword(bytes), NativeMethods.GetHighOrderDword(bytes),
out lowSought, out highSought, ref mContext))
{
int errorCode = Marshal.GetLastWin32Error();
// Error Code 25 indicates a seek error, we just skip that here.
if (errorCode != 0 && errorCode != 25)
{
NativeError.ThrowException(errorCode);
}
}
return(((long)lowSought & 0xFFFFFFFF) | ((long)highSought << 32));
}
public void Unlock(long position, long length)
{
if (position < 0)
{
throw new ArgumentOutOfRangeException("position", position, Resources.Unlock_Position_Negative);
}
if (length < 0)
{
throw new ArgumentOutOfRangeException("length", length, Resources.Negative_Lock_Length);
}
if (!NativeMethods.UnlockFile(SafeFileHandle, NativeMethods.GetLowOrderDword(position), NativeMethods.GetHighOrderDword(position), NativeMethods.GetLowOrderDword(length), NativeMethods.GetHighOrderDword(length)))
{
NativeError.ThrowException(Marshal.GetLastWin32Error());
}
}
/// <summary>
/// This method is called by the <see cref="AppenderSkeleton.DoAppend"/> method.
/// </summary>
/// <param name="loggingEvent">The event to log.</param>
/// <remarks>
/// <para>
/// Sends the event using a network message.
/// </para>
/// </remarks>
protected override void Append(LoggingEvent loggingEvent)
{
string renderedLoggingEvent = RenderLoggingEvent(loggingEvent);
// Send the message
int returnValue = NetMessageBufferSend(this.Server, this.Recipient, this.Sender, renderedLoggingEvent, renderedLoggingEvent.Length * Marshal.SystemDefaultCharSize);
// Log the error if the message could not be sent
if (returnValue != 0)
{
// Lookup the native error
NativeError nativeError = NativeError.GetError(returnValue);
// Handle the error over to the ErrorHandler
ErrorHandler.Error(nativeError.ToString() + " (Params: Server=" + this.Server + ", Recipient=" + this.Recipient + ", Sender=" + this.Sender + ")");
}
}
private static NativeMethods.SP_DEVICE_INTERFACE_DETAIL_DATA GetDeviceInterfaceDetail(SafeHandle safeHandle, ref NativeMethods.SP_DEVICE_INTERFACE_DATA interfaceData, ref NativeMethods.SP_DEVINFO_DATA infoData)
{
var didd = new NativeMethods.SP_DEVICE_INTERFACE_DETAIL_DATA {
cbSize = (uint)(IntPtr.Size == 4 ? 6 : 8)
};
var success = NativeMethods.SetupDiGetDeviceInterfaceDetail(safeHandle, ref interfaceData, ref didd, (uint)Marshal.SizeOf(didd), IntPtr.Zero, ref infoData);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
return(didd);
}
public static string GetVolumePathName(string path)
{
if (Utils.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException("path");
}
using (new NativeMethods.ChangeErrorMode(NativeMethods.ErrorMode.FailCriticalErrors))
{
var volumeRootPath = new StringBuilder(NativeMethods.MaxPathUnicode / 32);
var pathLp = Path.GetFullPathCore(null, path, GetFullPathOptions.AsLongPath | GetFullPathOptions.FullCheck);
// GetVolumePathName()
// 2013-07-18: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
var success = NativeMethods.GetVolumePathName(pathLp, volumeRootPath, (uint)volumeRootPath.Capacity);
var lastError = Marshal.GetLastWin32Error();
if (success)
{
return(Path.GetRegularPathCore(volumeRootPath.ToString(), GetFullPathOptions.None, false));
}
switch ((uint)lastError)
{
// Don't throw exception on these errors.
case Win32Errors.ERROR_NO_MORE_FILES:
case Win32Errors.ERROR_INVALID_PARAMETER:
case Win32Errors.ERROR_INVALID_NAME:
break;
default:
NativeError.ThrowException(lastError, path);
break;
}
// Return original path.
return(path);
}
}
private static T GetSecurityDescriptor <T>(uint lastError, bool isFolder, string path, SafeGlobalMemoryBufferHandle securityDescriptor)
{
ObjectSecurity objectSecurity;
using (securityDescriptor)
{
if (lastError == Win32Errors.ERROR_FILE_NOT_FOUND || lastError == Win32Errors.ERROR_PATH_NOT_FOUND)
{
lastError = isFolder ? Win32Errors.ERROR_PATH_NOT_FOUND : Win32Errors.ERROR_FILE_NOT_FOUND;
}
// If the function fails, the return value is zero.
if (lastError != Win32Errors.ERROR_SUCCESS)
{
if (!Utils.IsNullOrWhiteSpace(path))
{
NativeError.ThrowException(lastError, path);
}
else
{
NativeError.ThrowException((int)lastError);
}
}
if (!NativeMethods.IsValidHandle(securityDescriptor, false))
{
throw new IOException(Resources.Returned_Invalid_Security_Descriptor);
}
uint length = Security.NativeMethods.GetSecurityDescriptorLength(securityDescriptor);
// Seems not to work: Method .CopyTo: length > Capacity, so an Exception is thrown.
//byte[] managedBuffer = new byte[length];
//pSecurityDescriptor.CopyTo(managedBuffer, 0, (int) length);
byte[] managedBuffer = securityDescriptor.ToByteArray(0, (int)length);
objectSecurity = isFolder ? (ObjectSecurity) new DirectorySecurity() : new FileSecurity();
objectSecurity.SetSecurityDescriptorBinaryForm(managedBuffer);
}
return((T)(object)objectSecurity);
}
public static ByHandleFileInfo GetFileInfoByHandle(SafeFileHandle handle)
{
NativeMethods.IsValidHandle(handle);
NativeMethods.BY_HANDLE_FILE_INFORMATION info;
var success = NativeMethods.GetFileInformationByHandle(handle, out info);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
return(new ByHandleFileInfo(info));
}
private static SafeGlobalMemoryBufferHandle GetLinkTargetData(SafeFileHandle safeHandle, string reparsePath)
{
var safeBuffer = new SafeGlobalMemoryBufferHandle(NativeMethods.MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
while (true)
{
uint bytesReturned;
var success = NativeMethods.DeviceIoControl(safeHandle, NativeMethods.FSCTL_GET_REPARSE_POINT, IntPtr.Zero, 0, safeBuffer, (uint)safeBuffer.Capacity, out bytesReturned, IntPtr.Zero);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
switch ((uint)lastError)
{
case Win32Errors.ERROR_MORE_DATA:
case Win32Errors.ERROR_INSUFFICIENT_BUFFER:
// Should not happen since we already use the maximum size.
if (safeBuffer.Capacity < bytesReturned)
{
safeBuffer.Close();
}
break;
default:
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(lastError, reparsePath);
}
break;
}
}
else
{
break;
}
}
return(safeBuffer);
}
private static byte[] InvokeIoControlUnknownSize <TV>(SafeFileHandle handle, uint controlCode, TV input, uint increment = 128)
{
byte[] output;
uint bytesReturned;
var inputSize = (uint)Marshal.SizeOf(input);
var outputLength = increment;
do
{
output = new byte[outputLength];
if (!NativeMethods.DeviceIoControl(handle, controlCode, input, inputSize, output, outputLength, out bytesReturned, IntPtr.Zero))
{
var lastError = Marshal.GetLastWin32Error();
switch ((uint)lastError)
{
case Win32Errors.ERROR_MORE_DATA:
case Win32Errors.ERROR_INSUFFICIENT_BUFFER:
outputLength += increment;
break;
default:
NativeError.ThrowException(lastError);
break;
}
}
else
{
break;
}
} while (true);
// Return the result
if (output.Length == bytesReturned)
{
return(output);
}
var res = new byte[bytesReturned];
Array.Copy(output, res, bytesReturned);
return(res);
}
internal static void SetAttributesCore(KernelTransaction transaction, bool isFolder, string path, FileAttributes fileAttributes, PathFormat pathFormat)
{
if (pathFormat != PathFormat.LongFullPath)
{
path = Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
}
var success = null == transaction || !NativeMethods.IsAtLeastWindowsVista
// SetFileAttributes()
// 2013-01-13: MSDN confirms LongPath usage.
? NativeMethods.SetFileAttributes(path, fileAttributes)
: NativeMethods.SetFileAttributesTransacted(path, fileAttributes, transaction.SafeHandle);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
switch ((uint)lastError)
{
// MSDN: .NET 3.5+: ArgumentException: FileSystemInfo().Attributes
case Win32Errors.ERROR_INVALID_PARAMETER:
throw new ArgumentException(Resources.Invalid_File_Attribute, "fileAttributes");
case Win32Errors.ERROR_PATH_NOT_FOUND:
case Win32Errors.ERROR_FILE_NOT_FOUND:
if (isFolder)
{
lastError = (int)Win32Errors.ERROR_PATH_NOT_FOUND;
}
// MSDN: .NET 3.5+: DirectoryNotFoundException: The specified path is invalid, (for example, it is on an unmapped drive).
// MSDN: .NET 3.5+: FileNotFoundException: The file cannot be found.
NativeError.ThrowException(lastError, path);
break;
}
NativeError.ThrowException(lastError, path);
}
}
internal static T GetAttributesExCore <T>(KernelTransaction transaction, string path, PathFormat pathFormat)
{
if (pathFormat == PathFormat.RelativePath)
{
Path.CheckSupportedPathFormat(path, true, true);
}
string pathLp = Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.CheckInvalidPathChars);
var data = new NativeMethods.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfoCore(transaction, pathLp, ref data, false, true);
if (dataInitialised != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(dataInitialised, pathLp);
}
return((T)(typeof(T) == typeof(FileAttributes) ? (object)data.dwFileAttributes : data));
}
internal static void EnableDisableEncryptionCore(string path, bool enable, PathFormat pathFormat)
{
if (Utils.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException("path");
}
string pathLp = Path.GetExtendedLengthPathCore(null, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
// EncryptionDisable()
// In the ANSI version of this function, the name is limited to 248 characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2013-01-13: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
if (!NativeMethods.EncryptionDisable(pathLp, !enable))
{
NativeError.ThrowException(pathLp);
}
}
/// <summary>Check is the current handle is not null, not closed and not invalid.</summary>
/// <param name="handle">The current handle to check.</param>
/// <param name="lastError">The result of Marshal.GetLastWin32Error()</param>
/// <param name="path">The path on which the Exception occurred.</param>
/// <param name="throwException"><c>true</c> will throw an <exception cref="Resources.Handle_Is_Invalid_Win32Error"/>, <c>false</c> will not raise this exception..</param>
/// <returns><c>true</c> on success, <c>false</c> otherwise.</returns>
/// <exception cref="ArgumentException"/>
/// <exception cref="Exception"/>
internal static bool IsValidHandle(SafeHandle handle, int lastError, string path, bool throwException = true)
{
if (null == handle || handle.IsClosed || handle.IsInvalid)
{
if (null != handle)
{
handle.Close();
}
if (throwException)
{
NativeError.ThrowException(lastError, path);
}
return(false);
}
return(true);
}
public int Read(byte[] buffer, int offset, int count, bool processSecurity)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (!CanRead)
{
throw new NotSupportedException("Stream does not support reading");
}
if (offset + count > buffer.Length)
{
throw new ArgumentException("The sum of offset and count is larger than the size of the buffer.");
}
if (offset < 0)
{
throw new ArgumentOutOfRangeException("offset", offset, Resources.Negative_Offset);
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count", count, Resources.Negative_Count);
}
using (var safeBuffer = new SafeGlobalMemoryBufferHandle(count))
{
uint numberOfBytesRead;
if (!NativeMethods.BackupRead(SafeFileHandle, safeBuffer, (uint)safeBuffer.Capacity, out numberOfBytesRead, false, processSecurity, ref _context))
{
NativeError.ThrowException(Marshal.GetLastWin32Error());
}
// See File.GetAccessControlCore(): .CopyTo() does not work there?
safeBuffer.CopyTo(buffer, offset, count);
return((int)numberOfBytesRead);
}
}
internal static void SetAttributesCore(bool isFolder, KernelTransaction transaction, string path, FileAttributes fileAttributes, bool continueOnNotExist, PathFormat pathFormat)
{
string pathLp = Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
if (!(transaction == null || !NativeMethods.IsAtLeastWindowsVista
// SetFileAttributes()
// In the ANSI version of this function, the name is limited to MAX_PATH characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2013-01-13: MSDN confirms LongPath usage.
? NativeMethods.SetFileAttributes(pathLp, fileAttributes)
: NativeMethods.SetFileAttributesTransacted(pathLp, fileAttributes, transaction.SafeHandle)))
{
if (continueOnNotExist)
{
return;
}
uint lastError = (uint)Marshal.GetLastWin32Error();
switch (lastError)
{
// MSDN: .NET 3.5+: ArgumentException: FileSystemInfo().Attributes
case Win32Errors.ERROR_INVALID_PARAMETER:
throw new ArgumentException(Resources.Invalid_File_Attribute);
case Win32Errors.ERROR_FILE_NOT_FOUND:
if (isFolder)
{
lastError = (int)Win32Errors.ERROR_PATH_NOT_FOUND;
}
// MSDN: .NET 3.5+: DirectoryNotFoundException: The specified path is invalid, (for example, it is on an unmapped drive).
// MSDN: .NET 3.5+: FileNotFoundException: The file cannot be found.
NativeError.ThrowException(lastError, pathLp);
break;
}
NativeError.ThrowException(lastError, pathLp);
}
}
/// <summary>[AlphaFS] Enumerates the streams of type :$DATA from the specified file or directory.</summary>
/// <param name="transaction">The transaction.</param>
/// <param name="path">The path to the file or directory to enumerate streams of.</param>
/// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
/// <returns>The streams of type :$DATA in the specified file or directory.</returns>
internal static IEnumerable <AlternateDataStreamInfo> EnumerateAlternateDataStreamsCore(KernelTransaction transaction, string path, PathFormat pathFormat)
{
using (var buffer = new SafeGlobalMemoryBufferHandle(Marshal.SizeOf(typeof(NativeMethods.WIN32_FIND_STREAM_DATA))))
{
string pathLp = Path.GetExtendedLengthPathCore(transaction, path, pathFormat,
GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.CheckInvalidPathChars |
GetFullPathOptions.CheckAdditional);
using (SafeFindFileHandle handle = transaction == null
? NativeMethods.FindFirstStreamW(pathLp, NativeMethods.STREAM_INFO_LEVELS.FindStreamInfoStandard, buffer, 0)
: NativeMethods.FindFirstStreamTransactedW(pathLp, NativeMethods.STREAM_INFO_LEVELS.FindStreamInfoStandard, buffer, 0, transaction.SafeHandle))
{
int errorCode = Marshal.GetLastWin32Error();
if (handle.IsInvalid)
{
if (errorCode == Win32Errors.ERROR_HANDLE_EOF)
{
yield break;
}
NativeError.ThrowException(errorCode);
}
while (true)
{
yield return(new AlternateDataStreamInfo(pathLp, buffer.PtrToStructure <NativeMethods.WIN32_FIND_STREAM_DATA>(0)));
if (!NativeMethods.FindNextStreamW(handle, buffer))
{
int lastError = Marshal.GetLastWin32Error();
if (lastError == Win32Errors.ERROR_HANDLE_EOF)
{
break;
}
NativeError.ThrowException(lastError, pathLp);
}
}
}
}
}
internal static void DefineDosDeviceCore(bool isDefine, string deviceName, string targetPath, DosDeviceAttributes deviceAttributes, bool exactMatch)
{
if (Utils.IsNullOrWhiteSpace(deviceName))
{
throw new ArgumentNullException("deviceName");
}
if (isDefine)
{
// targetPath is allowed to be null.
// In no case is a trailing backslash ("\") allowed.
deviceName = Path.GetRegularPathCore(deviceName, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.CheckInvalidPathChars, false);
using (new NativeMethods.ChangeErrorMode(NativeMethods.ErrorMode.FailCriticalErrors))
{
var success = NativeMethods.DefineDosDevice(deviceAttributes, deviceName, targetPath);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError, deviceName, targetPath);
}
}
}
else
{
// A pointer to a path string that will implement this device.
// The string is an MS-DOS path string unless the DDD_RAW_TARGET_PATH flag is specified, in which case this string is a path string.
if (exactMatch && !Utils.IsNullOrWhiteSpace(targetPath))
{
deviceAttributes = deviceAttributes | DosDeviceAttributes.ExactMatchOnRemove | DosDeviceAttributes.RawTargetPath;
}
// Remove the MS-DOS device name. First, get the name of the Windows NT device
// from the symbolic link and then delete the symbolic link from the namespace.
DefineDosDevice(deviceName, targetPath, deviceAttributes);
}
}
internal static NativeError Make(Context cx, Scriptable scope, IdFunctionObject ctorObj, object[] args)
{
Scriptable proto = (Scriptable)(ctorObj.Get("prototype", ctorObj));
NativeError obj = new NativeError();
obj.SetPrototype(proto);
obj.SetParentScope(scope);
int arglen = args.Length;
if (arglen >= 1)
{
ScriptableObject.PutProperty(obj, "message", ScriptRuntime.ToString(args[0]));
if (arglen >= 2)
{
ScriptableObject.PutProperty(obj, "fileName", args[1]);
if (arglen >= 3)
{
int line = ScriptRuntime.ToInt32(args[2]);
ScriptableObject.PutProperty(obj, "lineNumber", Sharpen.Extensions.ValueOf(line));
}
}
}
return obj;
}
