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https://github.com/aaru-dps/Aaru.Server.git
synced 2025-12-16 19:24:27 +00:00
Add writing support to T98 Hard Disk Image.
This commit is contained in:
@@ -33,46 +33,48 @@
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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 System.Linq;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.Console;
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using DiscImageChef.Filters;
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namespace DiscImageChef.DiscImages
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{
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public class T98 : IMediaImage
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public class T98 : IWritableImage
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{
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ImageInfo imageInfo;
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IFilter t98ImageFilter;
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ImageInfo imageInfo;
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IFilter t98ImageFilter;
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FileStream writingStream;
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public T98()
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{
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imageInfo = new ImageInfo
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{
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ReadableSectorTags = new List<SectorTagType>(),
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ReadableMediaTags = new List<MediaTagType>(),
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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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ReadableSectorTags = new List<SectorTagType>(),
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ReadableMediaTags = new List<MediaTagType>(),
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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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}
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public string Name => "T98 Hard Disk Image";
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public Guid Id => new Guid("0410003E-6E7B-40E6-9328-BA5651ADF6B7");
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public string Name => "T98 Hard Disk Image";
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public Guid Id => new Guid("0410003E-6E7B-40E6-9328-BA5651ADF6B7");
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public ImageInfo Info => imageInfo;
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public string Format => "T98 disk image";
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@@ -96,7 +98,9 @@ namespace DiscImageChef.DiscImages
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byte[] hdrB = new byte[256];
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stream.Read(hdrB, 0, hdrB.Length);
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for(int i = 4; i < 256; i++) if(hdrB[i] != 0) return false;
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for(int i = 4; i < 256; i++)
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if(hdrB[i] != 0)
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return false;
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int cylinders = BitConverter.ToInt32(hdrB, 0);
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@@ -117,22 +121,24 @@ namespace DiscImageChef.DiscImages
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byte[] hdrB = new byte[256];
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stream.Read(hdrB, 0, hdrB.Length);
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for(int i = 4; i < 256; i++) if(hdrB[i] != 0) return false;
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for(int i = 4; i < 256; i++)
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if(hdrB[i] != 0)
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return false;
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int cylinders = BitConverter.ToInt32(hdrB, 0);
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imageInfo.MediaType = MediaType.GENERIC_HDD;
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imageInfo.ImageSize = (ulong)(stream.Length - 256);
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imageInfo.CreationTime = imageFilter.GetCreationTime();
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imageInfo.ImageSize = (ulong)(stream.Length - 256);
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imageInfo.CreationTime = imageFilter.GetCreationTime();
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imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
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imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
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imageInfo.Sectors = (ulong)(stream.Length / 256 - 1);
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imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
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imageInfo.SectorSize = 256;
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imageInfo.Cylinders = (uint)cylinders;
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imageInfo.Heads = 8;
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imageInfo.SectorsPerTrack = 33;
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imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
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imageInfo.Sectors = (ulong)(stream.Length / 256 - 1);
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imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
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imageInfo.SectorSize = 256;
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imageInfo.Cylinders = (uint)cylinders;
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imageInfo.Heads = 8;
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imageInfo.SectorsPerTrack = 33;
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t98ImageFilter = imageFilter;
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@@ -239,7 +245,7 @@ namespace DiscImageChef.DiscImages
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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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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@@ -249,7 +255,7 @@ namespace DiscImageChef.DiscImages
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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out List<ulong> unknownLbas)
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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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@@ -258,5 +264,146 @@ namespace DiscImageChef.DiscImages
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{
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return null;
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}
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public IEnumerable<MediaTagType> SupportedMediaTags => new MediaTagType[] { };
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public IEnumerable<SectorTagType> SupportedSectorTags => new SectorTagType[] { };
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public IEnumerable<MediaType> SupportedMediaTypes =>
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new[] {MediaType.GENERIC_HDD, MediaType.Unknown};
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public IEnumerable<(string name, Type type, string description)> SupportedOptions =>
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new (string name, Type type, string description)[] { };
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public IEnumerable<string> KnownExtensions => new[] {".t98"};
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public bool IsWriting { get; private set; }
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public string ErrorMessage { get; private set; }
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint sectorSize)
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{
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if(sectorSize != 256)
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{
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ErrorMessage = "Unsupported sector size";
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return false;
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}
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if(!SupportedMediaTypes.Contains(mediaType))
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{
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ErrorMessage = $"Unsupport media format {mediaType}";
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return false;
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}
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imageInfo = new ImageInfo {MediaType = mediaType, SectorSize = sectorSize, Sectors = sectors};
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try { writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); }
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catch(IOException e)
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{
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ErrorMessage = $"Could not create new image file, exception {e.Message}";
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return false;
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}
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IsWriting = true;
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ErrorMessage = null;
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return true;
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}
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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ErrorMessage = "Writing media tags is not supported.";
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return false;
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}
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public bool WriteSector(byte[] data, ulong sectorAddress)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length != imageInfo.SectorSize)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress >= imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream.Seek((long)(256 + sectorAddress * 256), SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length % imageInfo.SectorSize != 0)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress + length > imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream.Seek((long)(256 + sectorAddress * 256), SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectorLong(byte[] data, ulong sectorAddress)
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{
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ErrorMessage = "Writing sectors with tags is not supported.";
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return false;
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}
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
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{
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ErrorMessage = "Writing sectors with tags is not supported.";
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return false;
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}
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public bool SetTracks(List<Track> tracks)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool Close()
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{
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if(!IsWriting)
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{
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ErrorMessage = "Image is not opened for writing";
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return false;
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}
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int cylinders = (int)(imageInfo.Sectors / 33 / 8);
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writingStream.Seek(0, SeekOrigin.Begin);
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writingStream.Write(BitConverter.GetBytes(cylinders), 0, 4);
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writingStream.Flush();
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writingStream.Close();
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IsWriting = false;
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return true;
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}
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public bool SetMetadata(ImageInfo metadata)
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{
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return true;
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}
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}
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}
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