public bool Open(IFilter imageFilter) { Stream stream = imageFilter.GetDataForkStream(); stream.Seek(0, SeekOrigin.Begin); byte[] buffer = new byte[0x58]; byte[] pString = new byte[64]; stream.Read(buffer, 0, 0x58); IsWriting = false; // Incorrect pascal string length, not DC42 if (buffer[0] > 63) { return(false); } header = new Dc42Header(); Array.Copy(buffer, 0, pString, 0, 64); header.DiskName = StringHandlers.PascalToString(pString, Encoding.GetEncoding("macintosh")); header.DataSize = BigEndianBitConverter.ToUInt32(buffer, 0x40); header.TagSize = BigEndianBitConverter.ToUInt32(buffer, 0x44); header.DataChecksum = BigEndianBitConverter.ToUInt32(buffer, 0x48); header.TagChecksum = BigEndianBitConverter.ToUInt32(buffer, 0x4C); header.Format = buffer[0x50]; header.FmtByte = buffer[0x51]; header.Valid = buffer[0x52]; header.Reserved = buffer[0x53]; AaruConsole.DebugWriteLine("DC42 plugin", "header.diskName = \"{0}\"", header.DiskName); AaruConsole.DebugWriteLine("DC42 plugin", "header.dataSize = {0} bytes", header.DataSize); AaruConsole.DebugWriteLine("DC42 plugin", "header.tagSize = {0} bytes", header.TagSize); AaruConsole.DebugWriteLine("DC42 plugin", "header.dataChecksum = 0x{0:X8}", header.DataChecksum); AaruConsole.DebugWriteLine("DC42 plugin", "header.tagChecksum = 0x{0:X8}", header.TagChecksum); AaruConsole.DebugWriteLine("DC42 plugin", "header.format = 0x{0:X2}", header.Format); AaruConsole.DebugWriteLine("DC42 plugin", "header.fmtByte = 0x{0:X2}", header.FmtByte); AaruConsole.DebugWriteLine("DC42 plugin", "header.valid = {0}", header.Valid); AaruConsole.DebugWriteLine("DC42 plugin", "header.reserved = {0}", header.Reserved); if (header.Valid != 1 || header.Reserved != 0) { return(false); } // Some versions seem to incorrectly create little endian fields if (header.DataSize + header.TagSize + 0x54 != imageFilter.GetDataForkLength() && header.Format != kSigmaFormatTwiggy) { header.DataSize = BitConverter.ToUInt32(buffer, 0x40); header.TagSize = BitConverter.ToUInt32(buffer, 0x44); header.DataChecksum = BitConverter.ToUInt32(buffer, 0x48); header.TagChecksum = BitConverter.ToUInt32(buffer, 0x4C); if (header.DataSize + header.TagSize + 0x54 != imageFilter.GetDataForkLength() && header.Format != kSigmaFormatTwiggy) { return(false); } } if (header.Format != kSonyFormat400K && header.Format != kSonyFormat800K && header.Format != kSonyFormat720K && header.Format != kSonyFormat1440K && header.Format != kSonyFormat1680K && header.Format != kSigmaFormatTwiggy && header.Format != kNotStandardFormat) { AaruConsole.DebugWriteLine("DC42 plugin", "Unknown header.format = 0x{0:X2} value", header.Format); return(false); } if (header.FmtByte != kSonyFmtByte400K && header.FmtByte != kSonyFmtByte800K && header.FmtByte != kSonyFmtByte800KIncorrect && header.FmtByte != kSonyFmtByteProDos && header.FmtByte != kInvalidFmtByte && header.FmtByte != kSigmaFmtByteTwiggy && header.FmtByte != kFmtNotStandard && header.FmtByte != kMacOSXFmtByte) { AaruConsole.DebugWriteLine("DC42 plugin", "Unknown tmp_header.fmtByte = 0x{0:X2} value", header.FmtByte); return(false); } if (header.FmtByte == kInvalidFmtByte) { AaruConsole.DebugWriteLine("DC42 plugin", "Image says it's unformatted"); return(false); } dataOffset = 0x54; tagOffset = header.TagSize != 0 ? 0x54 + header.DataSize : 0; imageInfo.SectorSize = 512; bptag = (uint)(header.TagSize != 0 ? 12 : 0); dc42ImageFilter = imageFilter; imageInfo.Sectors = header.DataSize / 512; if (header.TagSize != 0) { bptag = (uint)(header.TagSize / imageInfo.Sectors); AaruConsole.DebugWriteLine("DC42 plugin", "bptag = {0} bytes", bptag); if (bptag != 12 && bptag != 20 && bptag != 24) { AaruConsole.DebugWriteLine("DC42 plugin", "Unknown tag size"); return(false); } imageInfo.ReadableSectorTags.Add(SectorTagType.AppleSectorTag); } imageInfo.ImageSize = (imageInfo.Sectors * imageInfo.SectorSize) + (imageInfo.Sectors * bptag); imageInfo.CreationTime = imageFilter.GetCreationTime(); imageInfo.LastModificationTime = imageFilter.GetLastWriteTime(); imageInfo.MediaTitle = header.DiskName; switch (header.Format) { case kSonyFormat400K: imageInfo.MediaType = imageInfo.Sectors == 1600 ? MediaType.AppleSonyDS : MediaType.AppleSonySS; break; case kSonyFormat800K: imageInfo.MediaType = MediaType.AppleSonyDS; break; case kSonyFormat720K: imageInfo.MediaType = MediaType.DOS_35_DS_DD_9; break; case kSonyFormat1440K: imageInfo.MediaType = MediaType.DOS_35_HD; break; case kSonyFormat1680K: imageInfo.MediaType = MediaType.DMF; break; case kSigmaFormatTwiggy: imageInfo.MediaType = MediaType.AppleFileWare; break; case kNotStandardFormat: switch (imageInfo.Sectors) { case 9728: imageInfo.MediaType = MediaType.AppleProfile; break; case 19456: imageInfo.MediaType = MediaType.AppleProfile; break; case 38912: imageInfo.MediaType = MediaType.AppleWidget; break; case 39040: imageInfo.MediaType = MediaType.AppleHD20; break; default: imageInfo.MediaType = MediaType.Unknown; break; } break; default: imageInfo.MediaType = MediaType.Unknown; break; } if (imageInfo.MediaType == MediaType.AppleFileWare) { byte[] data = new byte[header.DataSize]; byte[] tags = new byte[header.TagSize]; twiggyCache = new byte[header.DataSize]; twiggyCacheTags = new byte[header.TagSize]; twiggy = true; Stream datastream = imageFilter.GetDataForkStream(); datastream.Seek(dataOffset, SeekOrigin.Begin); datastream.Read(data, 0, (int)header.DataSize); Stream tagstream = imageFilter.GetDataForkStream(); tagstream.Seek(tagOffset, SeekOrigin.Begin); tagstream.Read(tags, 0, (int)header.TagSize); ushort mfsMagic = BigEndianBitConverter.ToUInt16(data, (data.Length / 2) + 0x400); ushort mfsAllBlocks = BigEndianBitConverter.ToUInt16(data, (data.Length / 2) + 0x412); // Detect a Macintosh Twiggy if (mfsMagic == 0xD2D7 && mfsAllBlocks == 422) { AaruConsole.DebugWriteLine("DC42 plugin", "Macintosh Twiggy detected, reversing disk sides"); Array.Copy(data, header.DataSize / 2, twiggyCache, 0, header.DataSize / 2); Array.Copy(tags, header.TagSize / 2, twiggyCacheTags, 0, header.TagSize / 2); Array.Copy(data, 0, twiggyCache, header.DataSize / 2, header.DataSize / 2); Array.Copy(tags, 0, twiggyCacheTags, header.TagSize / 2, header.TagSize / 2); } else { AaruConsole.DebugWriteLine("DC42 plugin", "Lisa Twiggy detected, reversing second half of disk"); Array.Copy(data, 0, twiggyCache, 0, header.DataSize / 2); Array.Copy(tags, 0, twiggyCacheTags, 0, header.TagSize / 2); int copiedSectors = 0; int sectorsToCopy = 0; for (int i = 0; i < 46; i++) { if (i >= 0 && i <= 3) { sectorsToCopy = 22; } if (i >= 4 && i <= 10) { sectorsToCopy = 21; } if (i >= 11 && i <= 16) { sectorsToCopy = 20; } if (i >= 17 && i <= 22) { sectorsToCopy = 19; } if (i >= 23 && i <= 28) { sectorsToCopy = 18; } if (i >= 29 && i <= 34) { sectorsToCopy = 17; } if (i >= 35 && i <= 41) { sectorsToCopy = 16; } if (i >= 42 && i <= 45) { sectorsToCopy = 15; } Array.Copy(data, (header.DataSize / 2) + (copiedSectors * 512), twiggyCache, twiggyCache.Length - (copiedSectors * 512) - (sectorsToCopy * 512), sectorsToCopy * 512); Array.Copy(tags, (header.TagSize / 2) + (copiedSectors * bptag), twiggyCacheTags, twiggyCacheTags.Length - (copiedSectors * bptag) - (sectorsToCopy * bptag), sectorsToCopy * bptag); copiedSectors += sectorsToCopy; } } } try { if (imageFilter.HasResourceFork()) { var rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream()); if (rsrcFork.ContainsKey(0x76657273)) { Resource versRsrc = rsrcFork.GetResource(0x76657273); byte[] vers = versRsrc?.GetResource(versRsrc.GetIds()[0]); if (vers != null) { var version = new Version(vers); string release = null; string dev = null; string pre = null; string major = $"{version.MajorVersion}"; string minor = $".{version.MinorVersion / 10}"; if (version.MinorVersion % 10 > 0) { release = $".{version.MinorVersion % 10}"; } switch (version.DevStage) { case Version.DevelopmentStage.Alpha: dev = "a"; break; case Version.DevelopmentStage.Beta: dev = "b"; break; case Version.DevelopmentStage.PreAlpha: dev = "d"; break; } if (dev == null && version.PreReleaseVersion > 0) { dev = "f"; } if (dev != null) { pre = $"{version.PreReleaseVersion}"; } imageInfo.ApplicationVersion = $"{major}{minor}{release}{dev}{pre}"; imageInfo.Application = version.VersionString; imageInfo.Comments = version.VersionMessage; } } if (rsrcFork.ContainsKey(0x64437079)) { Resource dCpyRsrc = rsrcFork.GetResource(0x64437079); if (dCpyRsrc != null) { string dCpy = StringHandlers.PascalToString(dCpyRsrc.GetResource(dCpyRsrc.GetIds()[0]), Encoding.GetEncoding("macintosh")); var dCpyEx = new Regex(REGEX_DCPY); Match dCpyMatch = dCpyEx.Match(dCpy); if (dCpyMatch.Success) { imageInfo.Application = dCpyMatch.Groups["application"].Value; imageInfo.ApplicationVersion = dCpyMatch.Groups["version"].Value; } } } } } catch (InvalidCastException) {} AaruConsole.DebugWriteLine("DC42 plugin", "Image application = {0} version {1}", imageInfo.Application, imageInfo.ApplicationVersion); imageInfo.XmlMediaType = XmlMediaType.BlockMedia; AaruConsole.VerboseWriteLine("DiskCopy 4.2 image contains a disk of type {0}", imageInfo.MediaType); switch (imageInfo.MediaType) { case MediaType.AppleSonySS: imageInfo.Cylinders = 80; imageInfo.Heads = 1; imageInfo.SectorsPerTrack = 10; break; case MediaType.AppleSonyDS: imageInfo.Cylinders = 80; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 10; break; case MediaType.DOS_35_DS_DD_9: imageInfo.Cylinders = 80; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 9; break; case MediaType.DOS_35_HD: imageInfo.Cylinders = 80; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 18; break; case MediaType.DMF: imageInfo.Cylinders = 80; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 21; break; case MediaType.AppleProfile: switch (imageInfo.Sectors) { case 9728: imageInfo.Cylinders = 152; break; case 19456: imageInfo.Cylinders = 304; break; } imageInfo.Heads = 4; imageInfo.SectorsPerTrack = 16; break; case MediaType.AppleWidget: imageInfo.Cylinders = 608; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 16; break; case MediaType.AppleHD20: imageInfo.Cylinders = 610; imageInfo.Heads = 2; imageInfo.SectorsPerTrack = 16; break; default: imageInfo.Cylinders = (uint)(imageInfo.Sectors / 16 / 63); imageInfo.Heads = 16; imageInfo.SectorsPerTrack = 63; break; } return(true); }
public bool Create(string path, MediaType mediaType, Dictionary <string, string> options, ulong sectors, uint sectorSize) { header = new Dc42Header(); bool tags = false; bool macosx = false; if (options != null && options.TryGetValue("macosx", out string tmpOption)) { bool.TryParse(tmpOption, out macosx); } if (sectorSize != 512) { ErrorMessage = "Unsupported sector size"; return(false); } switch (mediaType) { case MediaType.AppleFileWare: header.FmtByte = kSigmaFmtByteTwiggy; header.Format = kSigmaFormatTwiggy; twiggy = true; // TODO ErrorMessage = "Twiggy write support not yet implemented"; return(false); case MediaType.AppleHD20: if (sectors != 39040) { ErrorMessage = "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 = "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 = "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 = "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 = "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 = "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 = "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 = "Incorrect number of sectors for DMF image"; return(false); } header.FmtByte = macosx ? kMacOSXFmtByte : kSonyFmtByte1680K; header.Format = kSonyFormat1680K; break; default: ErrorMessage = $"Unsupport media format {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.OpenOrCreate, FileAccess.ReadWrite, FileShare.None); } catch (IOException e) { ErrorMessage = $"Could not create new image file, exception {e.Message}"; return(false); } IsWriting = true; ErrorMessage = null; return(true); }
public bool Identify(IFilter imageFilter) { Stream stream = imageFilter.GetDataForkStream(); stream.Seek(0, SeekOrigin.Begin); byte[] buffer = new byte[0x58]; byte[] pString = new byte[64]; stream.Read(buffer, 0, 0x58); // Incorrect pascal string length, not DC42 if (buffer[0] > 63) { return(false); } Dc42Header tmpHeader = new Dc42Header(); Array.Copy(buffer, 0, pString, 0, 64); BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian; tmpHeader.DiskName = StringHandlers.PascalToString(pString, Encoding.GetEncoding("macintosh")); tmpHeader.DataSize = BigEndianBitConverter.ToUInt32(buffer, 0x40); tmpHeader.TagSize = BigEndianBitConverter.ToUInt32(buffer, 0x44); tmpHeader.DataChecksum = BigEndianBitConverter.ToUInt32(buffer, 0x48); tmpHeader.TagChecksum = BigEndianBitConverter.ToUInt32(buffer, 0x4C); tmpHeader.Format = buffer[0x50]; tmpHeader.FmtByte = buffer[0x51]; tmpHeader.Valid = buffer[0x52]; tmpHeader.Reserved = buffer[0x53]; DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.diskName = \"{0}\"", tmpHeader.DiskName); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.dataSize = {0} bytes", tmpHeader.DataSize); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.tagSize = {0} bytes", tmpHeader.TagSize); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.dataChecksum = 0x{0:X8}", tmpHeader.DataChecksum); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.tagChecksum = 0x{0:X8}", tmpHeader.TagChecksum); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.format = 0x{0:X2}", tmpHeader.Format); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.fmtByte = 0x{0:X2}", tmpHeader.FmtByte); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.valid = {0}", tmpHeader.Valid); DicConsole.DebugWriteLine("DC42 plugin", "tmp_header.reserved = {0}", tmpHeader.Reserved); if (tmpHeader.Valid != 1 || tmpHeader.Reserved != 0) { return(false); } // Some versions seem to incorrectly create little endian fields if (tmpHeader.DataSize + tmpHeader.TagSize + 0x54 != imageFilter.GetDataForkLength() && tmpHeader.Format != kSigmaFormatTwiggy) { tmpHeader.DataSize = BitConverter.ToUInt32(buffer, 0x40); tmpHeader.TagSize = BitConverter.ToUInt32(buffer, 0x44); tmpHeader.DataChecksum = BitConverter.ToUInt32(buffer, 0x48); tmpHeader.TagChecksum = BitConverter.ToUInt32(buffer, 0x4C); if (tmpHeader.DataSize + tmpHeader.TagSize + 0x54 != imageFilter.GetDataForkLength() && tmpHeader.Format != kSigmaFormatTwiggy) { return(false); } } if (tmpHeader.Format != kSonyFormat400K && tmpHeader.Format != kSonyFormat800K && tmpHeader.Format != kSonyFormat720K && tmpHeader.Format != kSonyFormat1440K && tmpHeader.Format != kSonyFormat1680K && tmpHeader.Format != kSigmaFormatTwiggy && tmpHeader.Format != kNotStandardFormat) { DicConsole.DebugWriteLine("DC42 plugin", "Unknown tmp_header.format = 0x{0:X2} value", tmpHeader.Format); return(false); } if (tmpHeader.FmtByte != kSonyFmtByte400K && tmpHeader.FmtByte != kSonyFmtByte800K && tmpHeader.FmtByte != kSonyFmtByte800KIncorrect && tmpHeader.FmtByte != kSonyFmtByteProDos && tmpHeader.FmtByte != kInvalidFmtByte && tmpHeader.FmtByte != kSigmaFmtByteTwiggy && tmpHeader.FmtByte != kFmtNotStandard && tmpHeader.FmtByte != kMacOSXFmtByte) { DicConsole.DebugWriteLine("DC42 plugin", "Unknown tmp_header.fmtByte = 0x{0:X2} value", tmpHeader.FmtByte); return(false); } if (tmpHeader.FmtByte != kInvalidFmtByte) { return(true); } DicConsole.DebugWriteLine("DC42 plugin", "Image says it's unformatted"); return(false); }