mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
488 lines
14 KiB
C#
488 lines
14 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Write.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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// Writes Apple DiskCopy 4.2 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.Collections.Generic;
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using System.IO;
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using Aaru.CommonTypes;
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using Aaru.CommonTypes.AaruMetadata;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Structs;
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using Aaru.Helpers;
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using Aaru.Logging;
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using Claunia.Encoding;
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namespace Aaru.Images;
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public sealed partial class DiskCopy42
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{
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#region IWritableImage Members
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/// <inheritdoc />
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint negativeSectors, uint overflowSectors, uint sectorSize)
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{
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header = new Header();
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var tags = false;
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var macosx = false;
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if(options != null && options.TryGetValue("macosx", out string tmpOption)) bool.TryParse(tmpOption, out macosx);
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if(sectorSize != 512)
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{
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ErrorMessage = Localization.Unsupported_sector_size;
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return false;
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}
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if(negativeSectors != 0)
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{
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ErrorMessage = Localization.Negative_sectors_are_not_supported;
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return false;
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}
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if(overflowSectors != 0)
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{
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ErrorMessage = Localization.Overflow_sectors_are_not_supported;
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return false;
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}
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switch(mediaType)
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{
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case MediaType.AppleFileWare:
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header.FmtByte = kSigmaFmtByteTwiggy;
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header.Format = kSigmaFormatTwiggy;
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twiggy = true;
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// TODO
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ErrorMessage = Localization.Twiggy_write_support_not_yet_implemented;
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return false;
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case MediaType.AppleHD20:
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if(sectors != 39040)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_HD20_image;
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return false;
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}
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header.FmtByte = kFmtNotStandard;
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header.Format = kNotStandardFormat;
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tags = true;
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break;
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case MediaType.AppleProfile:
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if(sectors != 9728 && sectors != 19456)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_Profile_image;
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return false;
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}
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header.FmtByte = kFmtNotStandard;
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header.Format = kNotStandardFormat;
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tags = true;
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break;
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case MediaType.AppleSonyDS:
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if(sectors != 1600)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_MF2DD_image;
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return false;
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}
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header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte800K;
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header.Format = kSonyFormat800K;
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tags = true;
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break;
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case MediaType.AppleSonySS:
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if(sectors != 800)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_MF1DD_image;
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return false;
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}
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header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte400K;
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header.Format = kSonyFormat400K;
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tags = true;
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break;
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case MediaType.AppleWidget:
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if(sectors != 39040)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_Widget_image;
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return false;
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}
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header.FmtByte = kFmtNotStandard;
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header.Format = kNotStandardFormat;
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tags = true;
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break;
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case MediaType.DOS_35_DS_DD_9:
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if(sectors != 1440)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_MF2DD_image;
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return false;
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}
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header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte720K;
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header.Format = kSonyFormat720K;
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break;
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case MediaType.DOS_35_HD:
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if(sectors != 2880)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_MF2HD_image;
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return false;
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}
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header.Format = kSonyFmtByte1440K;
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header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte1440K;
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break;
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case MediaType.DMF:
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if(sectors != 3360)
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{
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ErrorMessage = Localization.Incorrect_number_of_sectors_for_DMF_image;
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return false;
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}
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header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte1680K;
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header.Format = kSonyFormat1680K;
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break;
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default:
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ErrorMessage = string.Format(Localization.Unsupported_media_format_0, mediaType);
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return false;
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}
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dataOffset = 0x54;
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tagOffset = header.TagSize != 0 ? 0x54 + header.DataSize : 0;
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header.DiskName = "-Aaru converted image-";
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header.Valid = 1;
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header.DataSize = (uint)(sectors * 512);
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if(tags) header.TagSize = (uint)(sectors * 12);
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imageInfo = new ImageInfo
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{
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MediaType = mediaType,
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SectorSize = sectorSize,
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Sectors = sectors
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};
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try
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{
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writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
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}
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catch(IOException ex)
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{
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ErrorMessage = string.Format(Localization.Could_not_create_new_image_file_exception_0, ex.Message);
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AaruLogging.Exception(ex, Localization.Could_not_create_new_image_file_exception_0, ex.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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/// <inheritdoc />
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSector(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(negative)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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if(data.Length != 512)
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{
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ErrorMessage = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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writingStream.Seek((long)(dataOffset + sectorAddress * 512), 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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/// <inheritdoc />
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public bool WriteSectors(byte[] data, ulong sectorAddress, bool negative, uint length, SectorStatus[] sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(negative)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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if(data.Length % 512 != 0)
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{
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ErrorMessage = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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writingStream.Seek((long)(dataOffset + sectorAddress * 512), 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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/// <inheritdoc />
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public bool WriteSectorLong(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(header.TagSize == 0)
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{
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ErrorMessage = "Image does not support tags";
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return false;
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}
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if(data.Length != 524)
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{
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ErrorMessage = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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writingStream.Seek((long)(dataOffset + sectorAddress * 512), SeekOrigin.Begin);
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writingStream.Write(data, 0, 512);
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writingStream.Seek((long)(tagOffset + sectorAddress * 12), SeekOrigin.Begin);
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writingStream.Write(data, 512, 12);
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, bool negative, uint length,
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SectorStatus[] sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(header.TagSize == 0)
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{
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ErrorMessage = "Image does not support tags";
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return false;
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}
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if(data.Length % 524 != 0)
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{
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ErrorMessage = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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for(uint i = 0; i < length; i++)
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{
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writingStream.Seek((long)(dataOffset + (sectorAddress + i) * 512), SeekOrigin.Begin);
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writingStream.Write(data, (int)(i * 524 + 0), 512);
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writingStream.Seek((long)(tagOffset + (sectorAddress + i) * 12), SeekOrigin.Begin);
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writingStream.Write(data, (int)(i * 524 + 512), 12);
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}
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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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 = Localization.Image_is_not_opened_for_writing;
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return false;
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}
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// No tags where written
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if(writingStream.Length == 0x54 + header.DataSize) header.TagSize = 0;
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writingStream.Seek(0x54, SeekOrigin.Begin);
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var data = new byte[header.DataSize];
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writingStream.EnsureRead(data, 0, (int)header.DataSize);
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header.DataChecksum = CheckSum(data);
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writingStream.Seek(0x54 + header.DataSize, SeekOrigin.Begin);
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data = new byte[header.TagSize];
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writingStream.EnsureRead(data, 0, (int)header.TagSize);
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header.TagChecksum = CheckSum(data);
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writingStream.Seek(0, SeekOrigin.Begin);
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if(header.DiskName.Length > 63) header.DiskName = header.DiskName[..63];
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writingStream.WriteByte((byte)header.DiskName.Length);
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Encoding macRoman = new MacRoman();
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writingStream.Write(macRoman.GetBytes(header.DiskName), 0, header.DiskName.Length);
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writingStream.Seek(64, SeekOrigin.Begin);
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writingStream.Write(BigEndianBitConverter.GetBytes(header.DataSize), 0, 4);
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writingStream.Write(BigEndianBitConverter.GetBytes(header.TagSize), 0, 4);
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writingStream.Write(BigEndianBitConverter.GetBytes(header.DataChecksum), 0, 4);
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writingStream.Write(BigEndianBitConverter.GetBytes(header.TagChecksum), 0, 4);
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writingStream.WriteByte(header.Format);
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writingStream.WriteByte(header.FmtByte);
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writingStream.WriteByte(1);
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writingStream.WriteByte(0);
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writingStream.Flush();
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writingStream.Close();
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IsWriting = false;
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ErrorMessage = "";
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return true;
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}
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/// <inheritdoc />
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public bool SetImageInfo(ImageInfo info)
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{
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header.DiskName = info.MediaTitle ?? "-Aaru converted image-";
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return true;
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}
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/// <inheritdoc />
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public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack) => true;
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/// <inheritdoc />
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public bool WriteSectorTag(byte[] data, ulong sectorAddress, bool negative, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSectorsTag(byte[] data, ulong sectorAddress, bool negative, uint length, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool SetDumpHardware(List<DumpHardware> dumpHardware) => false;
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/// <inheritdoc />
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public bool SetMetadata(Metadata metadata) => false;
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#endregion
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} |