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91 lines
3.4 KiB
C#
91 lines
3.4 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : VHD.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages Connectix and Microsoft Virtual PC disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.IO;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.CommonTypes.Structs;
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namespace Aaru.Images;
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/// <inheritdoc />
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/// <summary>
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/// Supports Connectix/Microsoft Virtual PC hard disk image format. Until Virtual PC 5 there existed no format,
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/// and the hard disk image was merely a sector by sector (RAW) image with a resource fork giving information to
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/// Virtual PC itself.
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/// </summary>
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public sealed partial class Vhd : IWritableImage
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{
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const string MODULE_NAME = "Virtual PC plugin";
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uint _bitmapSize;
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uint[] _blockAllocationTable;
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bool _blockInCache;
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uint _blockSize;
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byte[] _cachedBlock;
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uint _cachedBlockNumber;
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long _cachedBlockPosition;
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long _currentFooterPosition;
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bool _dynamic;
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ImageInfo _imageInfo;
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byte[][] _locatorEntriesData;
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DateTime _parentDateTime;
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IMediaImage _parentImage;
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DateTime _thisDateTime;
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DynamicDiskHeader _thisDynamic;
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IFilter _thisFilter;
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HardDiskFooter _thisFooter;
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FileStream _writingStream;
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public Vhd() => _imageInfo = new ImageInfo
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{
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ReadableSectorTags = [],
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ReadableMediaTags = [],
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HasPartitions = false,
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HasSessions = false,
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Version = null,
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Application = null,
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ApplicationVersion = null,
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Creator = null,
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Comments = null,
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MediaManufacturer = null,
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MediaModel = null,
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MediaSerialNumber = null,
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MediaBarcode = null,
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MediaPartNumber = null,
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MediaSequence = 0,
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LastMediaSequence = 0,
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DriveManufacturer = null,
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DriveModel = null,
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DriveSerialNumber = null,
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DriveFirmwareRevision = null
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};
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} |