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540 lines
18 KiB
C#
540 lines
18 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : BLU.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disc image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages Basic Lisa Utility disc 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 © 2011-2017 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using DiscImageChef.Console;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.Filters;
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namespace DiscImageChef.ImagePlugins
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{
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public class BLU : ImagePlugin
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{
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#region Internal Structures
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struct BLUHeader
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{
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public byte[] deviceName;
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public uint deviceType;
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public uint deviceBlocks;
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public ushort bytesPerBlock;
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}
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#endregion Internal Structures
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#region Internal Constants
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const string profileName = "PROFILE ";
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const string profile10Name = "PROFILE 10 ";
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const string widgetName = "WIDGET-10 ";
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const string priamName = "PRIAMDTATOWER";
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#endregion Internal Constants
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#region Internal variables
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BLUHeader ImageHeader;
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Filter bluImageFilter;
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int bptag;
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#endregion Internal variables
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#region Public methods
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public BLU()
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{
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Name = "Basic Lisa Utility";
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PluginUUID = new Guid("A153E2F8-4235-432D-9A7F-20807B0BCD74");
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ImageInfo = new ImageInfo();
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ImageInfo.readableSectorTags = new List<SectorTagType>();
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ImageInfo.readableMediaTags = new List<MediaTagType>();
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ImageInfo.imageHasPartitions = false;
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ImageInfo.imageHasSessions = false;
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ImageInfo.imageVersion = null;
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ImageInfo.imageApplication = null;
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ImageInfo.imageApplicationVersion = null;
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ImageInfo.imageCreator = null;
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ImageInfo.imageComments = null;
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ImageInfo.mediaManufacturer = null;
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ImageInfo.mediaModel = null;
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ImageInfo.mediaSerialNumber = null;
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ImageInfo.mediaBarcode = null;
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ImageInfo.mediaPartNumber = null;
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ImageInfo.mediaSequence = 0;
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ImageInfo.lastMediaSequence = 0;
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ImageInfo.driveManufacturer = null;
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ImageInfo.driveModel = null;
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ImageInfo.driveSerialNumber = null;
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ImageInfo.driveFirmwareRevision = null;
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}
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public override bool IdentifyImage(Filter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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if(stream.Length < 0x200)
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return false;
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byte[] header = new byte[0x17];
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stream.Read(header, 0, 0x17);
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BLUHeader tmpHdr = new BLUHeader();
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tmpHdr.deviceName = new byte[0x0D];
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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Array.Copy(header, 0, tmpHdr.deviceName, 0, 0x0D);
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tmpHdr.deviceType = BigEndianBitConverter.ToUInt32(header, 0x0C) & 0x00FFFFFF;
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tmpHdr.deviceBlocks = BigEndianBitConverter.ToUInt32(header, 0x11) & 0x00FFFFFF;
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tmpHdr.bytesPerBlock = BigEndianBitConverter.ToUInt16(header, 0x15);
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for(int i = 0; i < 0xD; i++)
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{
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if(tmpHdr.deviceName[i] < 0x20)
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return false;
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}
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if((tmpHdr.bytesPerBlock & 0xFE00) != 0x200)
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return false;
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return true;
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}
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public override bool OpenImage(Filter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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ImageHeader = new BLUHeader();
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ImageHeader.deviceName = new byte[0x0D];
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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byte[] header = new byte[0x17];
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stream.Read(header, 0, 0x17);
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Array.Copy(header, 0, ImageHeader.deviceName, 0, 0x0D);
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ImageHeader.deviceType = BigEndianBitConverter.ToUInt32(header, 0x0C) & 0x00FFFFFF;
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ImageHeader.deviceBlocks = BigEndianBitConverter.ToUInt32(header, 0x11) & 0x00FFFFFF;
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ImageHeader.bytesPerBlock = BigEndianBitConverter.ToUInt16(header, 0x15);
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.deviceName = \"{0}\"", StringHandlers.CToString(ImageHeader.deviceName));
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.deviceType = {0}", ImageHeader.deviceType);
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.deviceBlock = {0}", ImageHeader.deviceBlocks);
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.bytesPerBlock = {0}", ImageHeader.bytesPerBlock);
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for(int i = 0; i < 0xD; i++)
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{
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if(ImageHeader.deviceName[i] < 0x20)
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return false;
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}
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if((ImageHeader.bytesPerBlock & 0xFE00) != 0x200)
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return false;
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stream.Seek(0, SeekOrigin.Begin);
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header = new byte[ImageHeader.bytesPerBlock];
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stream.Read(header, 0, ImageHeader.bytesPerBlock);
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ImageInfo.sectorSize = 0x200;
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ImageInfo.sectors = ImageHeader.deviceBlocks;
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ImageInfo.imageSize = ImageHeader.deviceBlocks * ImageHeader.bytesPerBlock;
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bptag = ImageHeader.bytesPerBlock - 0x200;
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byte[] hdrTag = new byte[bptag];
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Array.Copy(header, 0x200, hdrTag, 0, bptag);
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switch(StringHandlers.CToString(ImageHeader.deviceName))
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{
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case profileName:
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if(ImageInfo.sectors == 0x2600)
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ImageInfo.mediaType = MediaType.AppleProfile;
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else
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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break;
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case profile10Name:
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if(ImageInfo.sectors == 0x4C00)
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ImageInfo.mediaType = MediaType.AppleProfile;
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else
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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break;
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case widgetName:
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if(ImageInfo.sectors == 0x4C00)
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ImageInfo.mediaType = MediaType.AppleWidget;
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else
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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break;
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case priamName:
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if(ImageInfo.sectors == 0x022C7C)
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ImageInfo.mediaType = MediaType.PriamDataTower;
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else
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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break;
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default:
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ImageInfo.mediaType = MediaType.GENERIC_HDD;
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break;
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}
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ImageInfo.imageApplication = StringHandlers.CToString(hdrTag);
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ImageInfo.imageCreationTime = imageFilter.GetCreationTime();
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ImageInfo.imageLastModificationTime = imageFilter.GetLastWriteTime();
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ImageInfo.imageName = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
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bluImageFilter = imageFilter;
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ImageInfo.xmlMediaType = XmlMediaType.BlockMedia;
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if(bptag > 0)
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ImageInfo.readableSectorTags.Add(SectorTagType.AppleSectorTag);
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DicConsole.VerboseWriteLine("BLU image contains a disk of type {0}", ImageInfo.mediaType);
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return true;
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}
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#region Verification, should add tag checksum checks
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public override bool? VerifySector(ulong sectorAddress)
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{
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return null;
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}
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public override bool? VerifySector(ulong sectorAddress, uint track)
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{
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return null;
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}
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public override bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> FailingLBAs, out List<ulong> UnknownLBAs)
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{
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FailingLBAs = new List<ulong>();
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UnknownLBAs = new List<ulong>();
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for(ulong i = sectorAddress; i < sectorAddress + length; i++)
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UnknownLBAs.Add(i);
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return null;
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}
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public override bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> FailingLBAs, out List<ulong> UnknownLBAs)
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{
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FailingLBAs = new List<ulong>();
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UnknownLBAs = new List<ulong>();
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for(ulong i = sectorAddress; i < sectorAddress + length; i++)
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UnknownLBAs.Add(i);
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return null;
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}
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public override bool? VerifyMediaImage()
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{
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return null;
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}
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#endregion Verification, should add tag checksum checks
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public override bool ImageHasPartitions()
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{
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return ImageInfo.imageHasPartitions;
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}
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public override ulong GetImageSize()
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{
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return ImageInfo.imageSize;
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}
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public override ulong GetSectors()
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{
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return ImageInfo.sectors;
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}
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public override uint GetSectorSize()
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{
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return ImageInfo.sectorSize;
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}
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public override byte[] ReadSector(ulong sectorAddress)
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{
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return ReadSectors(sectorAddress, 1);
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}
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public override byte[] ReadSectorTag(ulong sectorAddress, SectorTagType tag)
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{
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return ReadSectorsTag(sectorAddress, 1, tag);
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}
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public override byte[] ReadSectors(ulong sectorAddress, uint length)
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{
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if(sectorAddress > ImageInfo.sectors - 1)
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throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
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if(sectorAddress + length > ImageInfo.sectors)
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throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
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MemoryStream buffer = new MemoryStream();
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int seek = 0;
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int read = 0x200;
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int skip = bptag;
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Stream stream = bluImageFilter.GetDataForkStream();
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stream.Seek((long)((sectorAddress + 1) * ImageHeader.bytesPerBlock), SeekOrigin.Begin);
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for(int i = 0; i < length; i++)
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{
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stream.Seek(seek, SeekOrigin.Current);
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byte[] sector = new byte[read];
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stream.Read(sector, 0, read);
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buffer.Write(sector, 0, read);
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stream.Seek(skip, SeekOrigin.Current);
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}
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return buffer.ToArray();
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}
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public override byte[] ReadSectorsTag(ulong sectorAddress, uint length, SectorTagType tag)
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{
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if(tag != SectorTagType.AppleSectorTag)
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throw new FeatureUnsupportedImageException(string.Format("Tag {0} not supported by image format", tag));
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if(bptag == 0)
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throw new FeatureNotPresentImageException("Disk image does not have tags");
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if(sectorAddress > ImageInfo.sectors - 1)
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throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
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if(sectorAddress + length > ImageInfo.sectors)
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throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
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MemoryStream buffer = new MemoryStream();
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int seek = 0x200;
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int read = bptag;
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int skip = 0;
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Stream stream = bluImageFilter.GetDataForkStream();
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stream.Seek((long)((sectorAddress + 1) * ImageHeader.bytesPerBlock), SeekOrigin.Begin);
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for(int i = 0; i < length; i++)
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{
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stream.Seek(seek, SeekOrigin.Current);
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byte[] sector = new byte[read];
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stream.Read(sector, 0, read);
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buffer.Write(sector, 0, read);
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stream.Seek(skip, SeekOrigin.Current);
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}
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return buffer.ToArray();
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}
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public override byte[] ReadSectorLong(ulong sectorAddress)
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{
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return ReadSectorsLong(sectorAddress, 1);
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}
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public override byte[] ReadSectorsLong(ulong sectorAddress, uint length)
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{
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if(sectorAddress > ImageInfo.sectors - 1)
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throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
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if(sectorAddress + length > ImageInfo.sectors)
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throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
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byte[] buffer = new byte[length * ImageHeader.bytesPerBlock];
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Stream stream = bluImageFilter.GetDataForkStream();
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stream.Seek((long)((sectorAddress + 1) * ImageHeader.bytesPerBlock), SeekOrigin.Begin);
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stream.Read(buffer, 0, buffer.Length);
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return buffer;
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}
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public override string GetImageFormat()
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{
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return "Basic Lisa Utility";
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}
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public override string GetImageVersion()
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{
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return ImageInfo.imageVersion;
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}
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public override string GetImageApplication()
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{
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return ImageInfo.imageApplication;
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}
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public override string GetImageApplicationVersion()
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{
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return ImageInfo.imageApplicationVersion;
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}
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public override DateTime GetImageCreationTime()
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{
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return ImageInfo.imageCreationTime;
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}
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public override DateTime GetImageLastModificationTime()
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{
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return ImageInfo.imageLastModificationTime;
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}
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public override string GetImageName()
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{
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return ImageInfo.imageName;
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}
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public override MediaType GetMediaType()
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{
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return ImageInfo.mediaType;
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}
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#endregion Public methods
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#region Unsupported features
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public override byte[] ReadDiskTag(MediaTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override string GetImageCreator()
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{
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return ImageInfo.imageCreator;
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}
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public override string GetImageComments()
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{
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return ImageInfo.imageComments;
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}
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public override string GetMediaManufacturer()
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{
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return ImageInfo.mediaManufacturer;
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}
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public override string GetMediaModel()
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{
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return ImageInfo.mediaModel;
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}
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public override string GetMediaSerialNumber()
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{
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return ImageInfo.mediaSerialNumber;
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}
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public override string GetMediaBarcode()
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{
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return ImageInfo.mediaBarcode;
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}
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public override string GetMediaPartNumber()
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{
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return ImageInfo.mediaPartNumber;
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}
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public override int GetMediaSequence()
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{
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return ImageInfo.mediaSequence;
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}
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public override int GetLastDiskSequence()
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{
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return ImageInfo.lastMediaSequence;
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}
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public override string GetDriveManufacturer()
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{
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return ImageInfo.driveManufacturer;
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}
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public override string GetDriveModel()
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{
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return ImageInfo.driveModel;
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}
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public override string GetDriveSerialNumber()
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{
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return ImageInfo.driveSerialNumber;
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}
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public override List<Partition> GetPartitions()
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override List<Track> GetTracks()
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override List<Track> GetSessionTracks(Session session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override List<Track> GetSessionTracks(ushort session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override List<Session> GetSessions()
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSector(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSectorTag(ulong sectorAddress, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSectors(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSectorsTag(ulong sectorAddress, uint length, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSectorLong(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public override byte[] ReadSectorsLong(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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#endregion Unsupported features
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}
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}
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