Files
Aaru/Aaru.Images/DiskCopy42/Write.cs

488 lines
14 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Write.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Writes Apple DiskCopy 4.2 disk images.
//
// --[ License ] --------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2025 Natalia Portillo
// ****************************************************************************/
using System.Collections.Generic;
using System.IO;
using Aaru.CommonTypes;
using Aaru.CommonTypes.AaruMetadata;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Structs;
using Aaru.Helpers;
using Aaru.Logging;
using Claunia.Encoding;
namespace Aaru.Images;
public sealed partial class DiskCopy42
{
#region IWritableImage Members
/// <inheritdoc />
public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
uint negativeSectors, uint overflowSectors, uint sectorSize)
{
header = new Header();
var tags = false;
var macosx = false;
if(options != null && options.TryGetValue("macosx", out string tmpOption)) bool.TryParse(tmpOption, out macosx);
if(sectorSize != 512)
{
ErrorMessage = Localization.Unsupported_sector_size;
return false;
}
if(negativeSectors != 0)
{
ErrorMessage = Localization.Negative_sectors_are_not_supported;
return false;
}
if(overflowSectors != 0)
{
ErrorMessage = Localization.Overflow_sectors_are_not_supported;
return false;
}
switch(mediaType)
{
case MediaType.AppleFileWare:
header.FmtByte = kSigmaFmtByteTwiggy;
header.Format = kSigmaFormatTwiggy;
twiggy = true;
// TODO
ErrorMessage = Localization.Twiggy_write_support_not_yet_implemented;
return false;
case MediaType.AppleHD20:
if(sectors != 39040)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_HD20_image;
return false;
}
header.FmtByte = kFmtNotStandard;
header.Format = kNotStandardFormat;
tags = true;
break;
case MediaType.AppleProfile:
if(sectors != 9728 && sectors != 19456)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_Profile_image;
return false;
}
header.FmtByte = kFmtNotStandard;
header.Format = kNotStandardFormat;
tags = true;
break;
case MediaType.AppleSonyDS:
if(sectors != 1600)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_MF2DD_image;
return false;
}
header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte800K;
header.Format = kSonyFormat800K;
tags = true;
break;
case MediaType.AppleSonySS:
if(sectors != 800)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_MF1DD_image;
return false;
}
header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte400K;
header.Format = kSonyFormat400K;
tags = true;
break;
case MediaType.AppleWidget:
if(sectors != 39040)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_Apple_Widget_image;
return false;
}
header.FmtByte = kFmtNotStandard;
header.Format = kNotStandardFormat;
tags = true;
break;
case MediaType.DOS_35_DS_DD_9:
if(sectors != 1440)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_MF2DD_image;
return false;
}
header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte720K;
header.Format = kSonyFormat720K;
break;
case MediaType.DOS_35_HD:
if(sectors != 2880)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_MF2HD_image;
return false;
}
header.Format = kSonyFmtByte1440K;
header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte1440K;
break;
case MediaType.DMF:
if(sectors != 3360)
{
ErrorMessage = Localization.Incorrect_number_of_sectors_for_DMF_image;
return false;
}
header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte1680K;
header.Format = kSonyFormat1680K;
break;
default:
ErrorMessage = string.Format(Localization.Unsupported_media_format_0, mediaType);
return false;
}
dataOffset = 0x54;
tagOffset = header.TagSize != 0 ? 0x54 + header.DataSize : 0;
header.DiskName = "-Aaru converted image-";
header.Valid = 1;
header.DataSize = (uint)(sectors * 512);
if(tags) header.TagSize = (uint)(sectors * 12);
imageInfo = new ImageInfo
{
MediaType = mediaType,
SectorSize = sectorSize,
Sectors = sectors
};
try
{
writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
}
catch(IOException ex)
{
ErrorMessage = string.Format(Localization.Could_not_create_new_image_file_exception_0, ex.Message);
AaruLogging.Exception(ex, Localization.Could_not_create_new_image_file_exception_0, ex.Message);
return false;
}
IsWriting = true;
ErrorMessage = null;
return true;
}
/// <inheritdoc />
public bool WriteMediaTag(byte[] data, MediaTagType tag)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
/// <inheritdoc />
public bool WriteSector(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
if(negative)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
if(data.Length != 512)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
if(sectorAddress >= imageInfo.Sectors)
{
ErrorMessage = Localization.Tried_to_write_past_image_size;
return false;
}
writingStream.Seek((long)(dataOffset + sectorAddress * 512), SeekOrigin.Begin);
writingStream.Write(data, 0, data.Length);
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool WriteSectors(byte[] data, ulong sectorAddress, bool negative, uint length, SectorStatus[] sectorStatus)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
if(negative)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
if(data.Length % 512 != 0)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
if(sectorAddress + length > imageInfo.Sectors)
{
ErrorMessage = Localization.Tried_to_write_past_image_size;
return false;
}
writingStream.Seek((long)(dataOffset + sectorAddress * 512), SeekOrigin.Begin);
writingStream.Write(data, 0, data.Length);
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool WriteSectorLong(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
if(header.TagSize == 0)
{
ErrorMessage = "Image does not support tags";
return false;
}
if(data.Length != 524)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
if(sectorAddress >= imageInfo.Sectors)
{
ErrorMessage = Localization.Tried_to_write_past_image_size;
return false;
}
writingStream.Seek((long)(dataOffset + sectorAddress * 512), SeekOrigin.Begin);
writingStream.Write(data, 0, 512);
writingStream.Seek((long)(tagOffset + sectorAddress * 12), SeekOrigin.Begin);
writingStream.Write(data, 512, 12);
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool WriteSectorsLong(byte[] data, ulong sectorAddress, bool negative, uint length,
SectorStatus[] sectorStatus)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
if(header.TagSize == 0)
{
ErrorMessage = "Image does not support tags";
return false;
}
if(data.Length % 524 != 0)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
if(sectorAddress + length > imageInfo.Sectors)
{
ErrorMessage = Localization.Tried_to_write_past_image_size;
return false;
}
for(uint i = 0; i < length; i++)
{
writingStream.Seek((long)(dataOffset + (sectorAddress + i) * 512), SeekOrigin.Begin);
writingStream.Write(data, (int)(i * 524 + 0), 512);
writingStream.Seek((long)(tagOffset + (sectorAddress + i) * 12), SeekOrigin.Begin);
writingStream.Write(data, (int)(i * 524 + 512), 12);
}
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool Close()
{
if(!IsWriting)
{
ErrorMessage = Localization.Image_is_not_opened_for_writing;
return false;
}
// No tags where written
if(writingStream.Length == 0x54 + header.DataSize) header.TagSize = 0;
writingStream.Seek(0x54, SeekOrigin.Begin);
var data = new byte[header.DataSize];
writingStream.EnsureRead(data, 0, (int)header.DataSize);
header.DataChecksum = CheckSum(data);
writingStream.Seek(0x54 + header.DataSize, SeekOrigin.Begin);
data = new byte[header.TagSize];
writingStream.EnsureRead(data, 0, (int)header.TagSize);
header.TagChecksum = CheckSum(data);
writingStream.Seek(0, SeekOrigin.Begin);
if(header.DiskName.Length > 63) header.DiskName = header.DiskName[..63];
writingStream.WriteByte((byte)header.DiskName.Length);
Encoding macRoman = new MacRoman();
writingStream.Write(macRoman.GetBytes(header.DiskName), 0, header.DiskName.Length);
writingStream.Seek(64, SeekOrigin.Begin);
writingStream.Write(BigEndianBitConverter.GetBytes(header.DataSize), 0, 4);
writingStream.Write(BigEndianBitConverter.GetBytes(header.TagSize), 0, 4);
writingStream.Write(BigEndianBitConverter.GetBytes(header.DataChecksum), 0, 4);
writingStream.Write(BigEndianBitConverter.GetBytes(header.TagChecksum), 0, 4);
writingStream.WriteByte(header.Format);
writingStream.WriteByte(header.FmtByte);
writingStream.WriteByte(1);
writingStream.WriteByte(0);
writingStream.Flush();
writingStream.Close();
IsWriting = false;
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool SetImageInfo(ImageInfo info)
{
header.DiskName = info.MediaTitle ?? "-Aaru converted image-";
return true;
}
/// <inheritdoc />
public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack) => true;
/// <inheritdoc />
public bool WriteSectorTag(byte[] data, ulong sectorAddress, bool negative, SectorTagType tag)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
/// <inheritdoc />
public bool WriteSectorsTag(byte[] data, ulong sectorAddress, bool negative, uint length, SectorTagType tag)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
/// <inheritdoc />
public bool SetDumpHardware(List<DumpHardware> dumpHardware) => false;
/// <inheritdoc />
public bool SetMetadata(Metadata metadata) => false;
#endregion
}