public bool Identify(IFilter imageFilter)
{
if (!imageFilter.HasResourceFork() || imageFilter.GetResourceForkLength() == 0)
{
return(false);
}
try
{
ResourceFork rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream());
if (!rsrcFork.ContainsKey(NDIF_RESOURCE))
{
return(false);
}
Resource rsrc = rsrcFork.GetResource(NDIF_RESOURCE);
if (rsrc.ContainsId(NDIF_RESOURCEID))
{
return(true);
}
}
catch (InvalidCastException) { return(false); }
return(false);
}
public bool Identify(IFilter imageFilter)
{
if (!imageFilter.HasResourceFork() ||
imageFilter.GetResourceForkLength() == 0)
{
return(false);
}
try
{
var rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream());
if (!rsrcFork.ContainsKey(NDIF_RESOURCE))
{
return(false);
}
Resource rsrc = rsrcFork.GetResource(NDIF_RESOURCE);
Stream dataFork = imageFilter.GetDataForkStream();
byte[] udifMagic = new byte[4];
dataFork.Read(udifMagic, 0, 4);
if (BitConverter.ToUInt32(udifMagic, 0) == 0x796C6F6B)
{
return(false);
}
if (rsrc.ContainsId(NDIF_RESOURCEID))
{
return(true);
}
}
catch (InvalidCastException)
{
return(false);
}
return(false);
}
public bool Open(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if (stream.Length < 512)
{
return(false);
}
stream.Seek(-Marshal.SizeOf <UdifFooter>(), SeekOrigin.End);
byte[] footerB = new byte[Marshal.SizeOf <UdifFooter>()];
stream.Read(footerB, 0, Marshal.SizeOf <UdifFooter>());
footer = Marshal.ByteArrayToStructureBigEndian <UdifFooter>(footerB);
if (footer.signature != UDIF_SIGNATURE)
{
stream.Seek(0, SeekOrigin.Begin);
footerB = new byte[Marshal.SizeOf <UdifFooter>()];
stream.Read(footerB, 0, Marshal.SizeOf <UdifFooter>());
footer = Marshal.ByteArrayToStructureBigEndian <UdifFooter>(footerB);
if (footer.signature != UDIF_SIGNATURE)
{
throw new Exception("Unable to find UDIF signature.");
}
AaruConsole.VerboseWriteLine("Found obsolete UDIF format.");
}
AaruConsole.DebugWriteLine("UDIF plugin", "footer.signature = 0x{0:X8}", footer.signature);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.version = {0}", footer.version);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.headerSize = {0}", footer.headerSize);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.flags = {0}", footer.flags);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.runningDataForkOff = {0}", footer.runningDataForkOff);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.dataForkOff = {0}", footer.dataForkOff);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.dataForkLen = {0}", footer.dataForkLen);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.rsrcForkOff = {0}", footer.rsrcForkOff);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.rsrcForkLen = {0}", footer.rsrcForkLen);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.segmentNumber = {0}", footer.segmentNumber);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.segmentCount = {0}", footer.segmentCount);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.segmentId = {0}", footer.segmentId);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.dataForkChkType = {0}", footer.dataForkChkType);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.dataForkLen = {0}", footer.dataForkLen);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.dataForkChk = 0x{0:X8}", footer.dataForkChk);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.plistOff = {0}", footer.plistOff);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.plistLen = {0}", footer.plistLen);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.masterChkType = {0}", footer.masterChkType);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.masterChkLen = {0}", footer.masterChkLen);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.masterChk = 0x{0:X8}", footer.masterChk);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.imageVariant = {0}", footer.imageVariant);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.sectorCount = {0}", footer.sectorCount);
AaruConsole.DebugWriteLine("UDIF plugin", "footer.reserved1 is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(footer.reserved1));
AaruConsole.DebugWriteLine("UDIF plugin", "footer.reserved2 is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(footer.reserved2));
AaruConsole.DebugWriteLine("UDIF plugin", "footer.reserved3 is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(footer.reserved3));
AaruConsole.DebugWriteLine("UDIF plugin", "footer.reserved4 is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(footer.reserved4));
// Block chunks and headers
List <byte[]> blkxList = new List <byte[]>();
chunks = new Dictionary <ulong, BlockChunk>();
bool fakeBlockChunks = false;
byte[] vers = null;
if (footer.plistLen == 0 &&
footer.rsrcForkLen != 0)
{
AaruConsole.DebugWriteLine("UDIF plugin", "Reading resource fork.");
byte[] rsrcB = new byte[footer.rsrcForkLen];
stream.Seek((long)footer.rsrcForkOff, SeekOrigin.Begin);
stream.Read(rsrcB, 0, rsrcB.Length);
var rsrc = new ResourceFork(rsrcB);
if (!rsrc.ContainsKey(BLOCK_OS_TYPE))
{
throw new
ImageNotSupportedException("Image resource fork doesn't contain UDIF block chunks. Please fill an issue and send it to us.");
}
Resource blkxRez = rsrc.GetResource(BLOCK_OS_TYPE);
if (blkxRez == null)
{
throw new
ImageNotSupportedException("Image resource fork doesn't contain UDIF block chunks. Please fill an issue and send it to us.");
}
if (blkxRez.GetIds().Length == 0)
{
throw new
ImageNotSupportedException("Image resource fork doesn't contain UDIF block chunks. Please fill an issue and send it to us.");
}
blkxList.AddRange(blkxRez.GetIds().Select(blkxId => blkxRez.GetResource(blkxId)));
Resource versRez = rsrc.GetResource(0x76657273);
if (versRez != null)
{
vers = versRez.GetResource(versRez.GetIds()[0]);
}
}
else if (footer.plistLen != 0)
{
AaruConsole.DebugWriteLine("UDIF plugin", "Reading property list.");
byte[] plistB = new byte[footer.plistLen];
stream.Seek((long)footer.plistOff, SeekOrigin.Begin);
stream.Read(plistB, 0, plistB.Length);
AaruConsole.DebugWriteLine("UDIF plugin", "Parsing property list.");
var plist = (NSDictionary)XmlPropertyListParser.Parse(plistB);
if (plist == null)
{
throw new Exception("Could not parse property list.");
}
if (!plist.TryGetValue(RESOURCE_FORK_KEY, out NSObject rsrcObj))
{
throw new Exception("Could not retrieve resource fork.");
}
var rsrc = (NSDictionary)rsrcObj;
if (!rsrc.TryGetValue(BLOCK_KEY, out NSObject blkxObj))
{
throw new Exception("Could not retrieve block chunks array.");
}
NSObject[] blkx = ((NSArray)blkxObj).GetArray();
foreach (NSDictionary part in blkx.Cast <NSDictionary>())
{
if (!part.TryGetValue("Name", out _))
{
throw new Exception("Could not retrieve Name");
}
if (!part.TryGetValue("Data", out NSObject dataObj))
{
throw new Exception("Could not retrieve Data");
}
blkxList.Add(((NSData)dataObj).Bytes);
}
if (rsrc.TryGetValue("vers", out NSObject versObj))
{
NSObject[] versArray = ((NSArray)versObj).GetArray();
if (versArray.Length >= 1)
{
vers = ((NSData)versArray[0]).Bytes;
}
}
}
else
{
// Obsolete read-only UDIF only prepended the header and then put the image without any kind of block references.
// So let's falsify a block chunk
var bChnk = new BlockChunk
{
length = footer.dataForkLen, offset = footer.dataForkOff, sector = 0, sectors = footer.sectorCount,
type = CHUNK_TYPE_COPY
};
imageInfo.Sectors = footer.sectorCount;
chunks.Add(bChnk.sector, bChnk);
buffersize = 2048 * SECTOR_SIZE;
fakeBlockChunks = true;
}
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 (version.MajorVersion == 3)
{
imageInfo.Application = "ShrinkWrap™";
}
else if (version.MajorVersion == 6)
{
imageInfo.Application = "DiskCopy";
}
}
else
{
imageInfo.Application = "DiskCopy";
}
AaruConsole.DebugWriteLine("UDIF plugin", "Image application = {0} version {1}", imageInfo.Application,
imageInfo.ApplicationVersion);
imageInfo.Sectors = 0;
if (!fakeBlockChunks)
{
if (blkxList.Count == 0)
{
throw new
ImageNotSupportedException("Could not retrieve block chunks. Please fill an issue and send it to us.");
}
buffersize = 0;
foreach (byte[] blkxBytes in blkxList)
{
var bHdr = new BlockHeader();
byte[] bHdrB = new byte[Marshal.SizeOf <BlockHeader>()];
Array.Copy(blkxBytes, 0, bHdrB, 0, Marshal.SizeOf <BlockHeader>());
bHdr = Marshal.ByteArrayToStructureBigEndian <BlockHeader>(bHdrB);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.signature = 0x{0:X8}", bHdr.signature);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.version = {0}", bHdr.version);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.sectorStart = {0}", bHdr.sectorStart);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.sectorCount = {0}", bHdr.sectorCount);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.dataOffset = {0}", bHdr.dataOffset);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.buffers = {0}", bHdr.buffers);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.descriptor = 0x{0:X8}", bHdr.descriptor);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved1 = {0}", bHdr.reserved1);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved2 = {0}", bHdr.reserved2);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved3 = {0}", bHdr.reserved3);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved4 = {0}", bHdr.reserved4);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved5 = {0}", bHdr.reserved5);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reserved6 = {0}", bHdr.reserved6);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.checksumType = {0}", bHdr.checksumType);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.checksumLen = {0}", bHdr.checksumLen);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.checksum = 0x{0:X8}", bHdr.checksum);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunks = {0}", bHdr.chunks);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.reservedChk is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(bHdr.reservedChk));
if (bHdr.buffers > buffersize)
{
buffersize = bHdr.buffers * SECTOR_SIZE;
}
for (int i = 0; i < bHdr.chunks; i++)
{
var bChnk = new BlockChunk();
byte[] bChnkB = new byte[Marshal.SizeOf <BlockChunk>()];
Array.Copy(blkxBytes, Marshal.SizeOf <BlockHeader>() + (Marshal.SizeOf <BlockChunk>() * i),
bChnkB, 0, Marshal.SizeOf <BlockChunk>());
bChnk = Marshal.ByteArrayToStructureBigEndian <BlockChunk>(bChnkB);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].type = 0x{1:X8}", i, bChnk.type);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].comment = {1}", i, bChnk.comment);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].sector = {1}", i, bChnk.sector);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].sectors = {1}", i, bChnk.sectors);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].offset = {1}", i, bChnk.offset);
AaruConsole.DebugWriteLine("UDIF plugin", "bHdr.chunk[{0}].length = {1}", i, bChnk.length);
if (bChnk.type == CHUNK_TYPE_END)
{
break;
}
imageInfo.Sectors += bChnk.sectors;
// Chunk offset is relative
bChnk.sector += bHdr.sectorStart;
bChnk.offset += bHdr.dataOffset;
switch (bChnk.type)
{
// TODO: Handle comments
case CHUNK_TYPE_COMMNT: continue;
// TODO: Handle compressed chunks
case CHUNK_TYPE_KENCODE:
throw new
ImageNotSupportedException("Chunks compressed with KenCode are not yet supported.");
case CHUNK_TYPE_LZH:
throw new
ImageNotSupportedException("Chunks compressed with LZH are not yet supported.");
case CHUNK_TYPE_LZFSE:
throw new
ImageNotSupportedException("Chunks compressed with lzfse are not yet supported.");
}
if ((bChnk.type > CHUNK_TYPE_NOCOPY && bChnk.type < CHUNK_TYPE_COMMNT) ||
(bChnk.type > CHUNK_TYPE_LZFSE && bChnk.type < CHUNK_TYPE_END))
{
throw new ImageNotSupportedException($"Unsupported chunk type 0x{bChnk.type:X8} found");
}
if (bChnk.sectors > 0)
{
chunks.Add(bChnk.sector, bChnk);
}
}
}
}
sectorCache = new Dictionary <ulong, byte[]>();
chunkCache = new Dictionary <ulong, byte[]>();
currentChunkCacheSize = 0;
imageStream = stream;
imageInfo.CreationTime = imageFilter.GetCreationTime();
imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
imageInfo.SectorSize = SECTOR_SIZE;
imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
imageInfo.MediaType = MediaType.GENERIC_HDD;
imageInfo.ImageSize = imageInfo.Sectors * SECTOR_SIZE;
imageInfo.Version = $"{footer.version}";
imageInfo.Cylinders = (uint)(imageInfo.Sectors / 16 / 63);
imageInfo.Heads = 16;
imageInfo.SectorsPerTrack = 63;
return(true);
}
public bool Open(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if (stream.Length < 84)
{
return(false);
}
DartHeader header = new DartHeader();
stream.Seek(0, SeekOrigin.Begin);
byte[] headerB = new byte[Marshal.SizeOf(header)];
stream.Read(headerB, 0, Marshal.SizeOf(header));
header = BigEndianMarshal.ByteArrayToStructureBigEndian <DartHeader>(headerB);
if (header.srcCmp > COMPRESS_NONE)
{
return(false);
}
int expectedMaxSize = 84 + header.srcSize * 2 * 524;
switch (header.srcType)
{
case DISK_MAC:
if (header.srcSize != SIZE_MAC_SS && header.srcSize != SIZE_MAC)
{
return(false);
}
break;
case DISK_LISA:
if (header.srcSize != SIZE_LISA)
{
return(false);
}
break;
case DISK_APPLE2:
if (header.srcSize != DISK_APPLE2)
{
return(false);
}
break;
case DISK_MAC_HD:
if (header.srcSize != SIZE_MAC_HD)
{
return(false);
}
expectedMaxSize += 64;
break;
case DISK_DOS:
if (header.srcSize != SIZE_DOS)
{
return(false);
}
break;
case DISK_DOS_HD:
if (header.srcSize != SIZE_DOS_HD)
{
return(false);
}
expectedMaxSize += 64;
break;
default: return(false);
}
if (stream.Length > expectedMaxSize)
{
return(false);
}
short[] bLength;
if (header.srcType == DISK_MAC_HD || header.srcType == DISK_DOS_HD)
{
bLength = new short[BLOCK_ARRAY_LEN_HIGH];
}
else
{
bLength = new short[BLOCK_ARRAY_LEN_LOW];
}
BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
for (int i = 0; i < bLength.Length; i++)
{
byte[] tmpShort = new byte[2];
stream.Read(tmpShort, 0, 2);
bLength[i] = BigEndianBitConverter.ToInt16(tmpShort, 0);
}
MemoryStream dataMs = new MemoryStream();
MemoryStream tagMs = new MemoryStream();
foreach (short l in bLength)
{
if (l != 0)
{
byte[] buffer = new byte[BUFFER_SIZE];
if (l == -1)
{
stream.Read(buffer, 0, BUFFER_SIZE);
dataMs.Write(buffer, 0, DATA_SIZE);
tagMs.Write(buffer, DATA_SIZE, TAG_SIZE);
}
else
{
byte[] temp;
if (header.srcCmp == COMPRESS_RLE)
{
temp = new byte[l * 2];
stream.Read(temp, 0, temp.Length);
AppleRle rle = new AppleRle(new MemoryStream(temp));
buffer = new byte[BUFFER_SIZE];
for (int i = 0; i < BUFFER_SIZE; i++)
{
buffer[i] = (byte)rle.ProduceByte();
}
dataMs.Write(buffer, 0, DATA_SIZE);
tagMs.Write(buffer, DATA_SIZE, TAG_SIZE);
}
else
{
temp = new byte[l];
stream.Read(temp, 0, temp.Length);
throw new ImageNotSupportedException("LZH Compressed images not yet supported");
}
}
}
}
dataCache = dataMs.ToArray();
if (header.srcType == DISK_LISA || header.srcType == DISK_MAC || header.srcType == DISK_APPLE2)
{
imageInfo.ReadableSectorTags.Add(SectorTagType.AppleSectorTag);
tagCache = tagMs.ToArray();
}
try
{
if (imageFilter.HasResourceFork())
{
ResourceFork rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream());
// "vers"
if (rsrcFork.ContainsKey(0x76657273))
{
Resource versRsrc = rsrcFork.GetResource(0x76657273);
byte[] vers = versRsrc?.GetResource(versRsrc.GetIds()[0]);
if (vers != null)
{
Version 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 = $"{major}{minor}{release}{dev}{pre}";
imageInfo.Application = version.VersionString;
imageInfo.Comments = version.VersionMessage;
}
}
// "dart"
if (rsrcFork.ContainsKey(0x44415254))
{
Resource dartRsrc = rsrcFork.GetResource(0x44415254);
if (dartRsrc != null)
{
string dArt = StringHandlers.PascalToString(dartRsrc.GetResource(dartRsrc.GetIds()[0]),
Encoding.GetEncoding("macintosh"));
const string DART_REGEX =
@"(?<version>\S+), tag checksum=\$(?<tagchk>[0123456789ABCDEF]{8}), data checksum=\$(?<datachk>[0123456789ABCDEF]{8})$";
Regex dArtEx = new Regex(DART_REGEX);
Match dArtMatch = dArtEx.Match(dArt);
if (dArtMatch.Success)
{
imageInfo.Application = "DART";
imageInfo.ApplicationVersion = dArtMatch.Groups["version"].Value;
dataChecksum = Convert.ToUInt32(dArtMatch.Groups["datachk"].Value, 16);
tagChecksum = Convert.ToUInt32(dArtMatch.Groups["tagchk"].Value, 16);
}
}
}
// "cksm"
if (rsrcFork.ContainsKey(0x434B534D))
{
Resource cksmRsrc = rsrcFork.GetResource(0x434B534D);
if (cksmRsrc?.ContainsId(1) == true)
{
byte[] tagChk = cksmRsrc.GetResource(1);
tagChecksum = BigEndianBitConverter.ToUInt32(tagChk, 0);
}
if (cksmRsrc?.ContainsId(2) == true)
{
byte[] dataChk = cksmRsrc.GetResource(1);
dataChecksum = BigEndianBitConverter.ToUInt32(dataChk, 0);
}
}
}
}
catch (InvalidCastException) { }
DicConsole.DebugWriteLine("DART plugin", "Image application = {0} version {1}", imageInfo.Application,
imageInfo.ApplicationVersion);
imageInfo.Sectors = (ulong)(header.srcSize * 2);
imageInfo.CreationTime = imageFilter.GetCreationTime();
imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
imageInfo.SectorSize = SECTOR_SIZE;
imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
imageInfo.ImageSize = imageInfo.Sectors * SECTOR_SIZE;
imageInfo.Version = header.srcCmp == COMPRESS_NONE ? "1.4" : "1.5";
switch (header.srcSize)
{
case SIZE_MAC_SS:
imageInfo.Cylinders = 80;
imageInfo.Heads = 1;
imageInfo.SectorsPerTrack = 10;
imageInfo.MediaType = MediaType.AppleSonySS;
break;
case SIZE_MAC:
imageInfo.Cylinders = 80;
imageInfo.Heads = 2;
imageInfo.SectorsPerTrack = 10;
imageInfo.MediaType = MediaType.AppleSonyDS;
break;
case SIZE_DOS:
imageInfo.Cylinders = 80;
imageInfo.Heads = 2;
imageInfo.SectorsPerTrack = 9;
imageInfo.MediaType = MediaType.DOS_35_DS_DD_9;
break;
case SIZE_MAC_HD:
imageInfo.Cylinders = 80;
imageInfo.Heads = 2;
imageInfo.SectorsPerTrack = 18;
imageInfo.MediaType = MediaType.DOS_35_HD;
break;
}
return(true);
}
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 Open(IFilter imageFilter)
{
if (!imageFilter.HasResourceFork() || imageFilter.GetResourceForkLength() == 0)
{
return(false);
}
ResourceFork rsrcFork;
Resource rsrc;
short[] bcems;
try
{
rsrcFork = new ResourceFork(imageFilter.GetResourceForkStream());
if (!rsrcFork.ContainsKey(NDIF_RESOURCE))
{
return(false);
}
rsrc = rsrcFork.GetResource(NDIF_RESOURCE);
bcems = rsrc.GetIds();
if (bcems == null || bcems.Length == 0)
{
return(false);
}
}
catch (InvalidCastException) { return(false); }
imageInfo.Sectors = 0;
foreach (byte[] bcem in bcems.Select(id => rsrc.GetResource(NDIF_RESOURCEID)))
{
if (bcem.Length < 128)
{
return(false);
}
header = Marshal.ByteArrayToStructureBigEndian <ChunkHeader>(bcem);
DicConsole.DebugWriteLine("NDIF plugin", "footer.type = {0}", header.version);
DicConsole.DebugWriteLine("NDIF plugin", "footer.driver = {0}", header.driver);
DicConsole.DebugWriteLine("NDIF plugin", "footer.name = {0}",
StringHandlers.PascalToString(header.name,
Encoding.GetEncoding("macintosh")));
DicConsole.DebugWriteLine("NDIF plugin", "footer.sectors = {0}", header.sectors);
DicConsole.DebugWriteLine("NDIF plugin", "footer.maxSectorsPerChunk = {0}", header.maxSectorsPerChunk);
DicConsole.DebugWriteLine("NDIF plugin", "footer.dataOffset = {0}", header.dataOffset);
DicConsole.DebugWriteLine("NDIF plugin", "footer.crc = 0x{0:X7}", header.crc);
DicConsole.DebugWriteLine("NDIF plugin", "footer.segmented = {0}", header.segmented);
DicConsole.DebugWriteLine("NDIF plugin", "footer.p1 = 0x{0:X8}", header.p1);
DicConsole.DebugWriteLine("NDIF plugin", "footer.p2 = 0x{0:X8}", header.p2);
DicConsole.DebugWriteLine("NDIF plugin", "footer.unknown[0] = 0x{0:X8}", header.unknown[0]);
DicConsole.DebugWriteLine("NDIF plugin", "footer.unknown[1] = 0x{0:X8}", header.unknown[1]);
DicConsole.DebugWriteLine("NDIF plugin", "footer.unknown[2] = 0x{0:X8}", header.unknown[2]);
DicConsole.DebugWriteLine("NDIF plugin", "footer.unknown[3] = 0x{0:X8}", header.unknown[3]);
DicConsole.DebugWriteLine("NDIF plugin", "footer.unknown[4] = 0x{0:X8}", header.unknown[4]);
DicConsole.DebugWriteLine("NDIF plugin", "footer.encrypted = {0}", header.encrypted);
DicConsole.DebugWriteLine("NDIF plugin", "footer.hash = 0x{0:X8}", header.hash);
DicConsole.DebugWriteLine("NDIF plugin", "footer.chunks = {0}", header.chunks);
// Block chunks and headers
chunks = new Dictionary <ulong, BlockChunk>();
BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
for (int i = 0; i < header.chunks; i++)
{
// Obsolete read-only NDIF only prepended the header and then put the image without any kind of block references.
// So let's falsify a block chunk
BlockChunk bChnk = new BlockChunk();
byte[] sector = new byte[4];
Array.Copy(bcem, 128 + 0 + i * 12, sector, 1, 3);
bChnk.sector = BigEndianBitConverter.ToUInt32(sector, 0);
bChnk.type = bcem[128 + 3 + i * 12];
bChnk.offset = BigEndianBitConverter.ToUInt32(bcem, 128 + 4 + i * 12);
bChnk.length = BigEndianBitConverter.ToUInt32(bcem, 128 + 8 + i * 12);
DicConsole.DebugWriteLine("NDIF plugin", "bHdr.chunk[{0}].type = 0x{1:X2}", i, bChnk.type);
DicConsole.DebugWriteLine("NDIF plugin", "bHdr.chunk[{0}].sector = {1}", i, bChnk.sector);
DicConsole.DebugWriteLine("NDIF plugin", "bHdr.chunk[{0}].offset = {1}", i, bChnk.offset);
DicConsole.DebugWriteLine("NDIF plugin", "bHdr.chunk[{0}].length = {1}", i, bChnk.length);
if (bChnk.type == CHUNK_TYPE_END)
{
break;
}
bChnk.offset += header.dataOffset;
bChnk.sector += (uint)imageInfo.Sectors;
// TODO: Handle compressed chunks
switch (bChnk.type)
{
case CHUNK_TYPE_KENCODE:
throw new
ImageNotSupportedException("Chunks compressed with KenCode are not yet supported.");
case CHUNK_TYPE_LZH:
throw new ImageNotSupportedException("Chunks compressed with LZH are not yet supported.");
case CHUNK_TYPE_STUFFIT:
throw new
ImageNotSupportedException("Chunks compressed with StuffIt! are not yet supported.");
}
// TODO: Handle compressed chunks
if (bChnk.type > CHUNK_TYPE_COPY && bChnk.type < CHUNK_TYPE_KENCODE ||
bChnk.type > CHUNK_TYPE_ADC && bChnk.type < CHUNK_TYPE_STUFFIT ||
bChnk.type > CHUNK_TYPE_STUFFIT && bChnk.type < CHUNK_TYPE_END || bChnk.type == 1)
{
throw new ImageNotSupportedException($"Unsupported chunk type 0x{bChnk.type:X8} found");
}
chunks.Add(bChnk.sector, bChnk);
}
imageInfo.Sectors += header.sectors;
}
if (header.segmented > 0)
{
throw new ImageNotSupportedException("Segmented images are not yet supported.");
}
if (header.encrypted > 0)
{
throw new ImageNotSupportedException("Encrypted images are not yet supported.");
}
switch (imageInfo.Sectors)
{
case 1440:
imageInfo.MediaType = MediaType.DOS_35_DS_DD_9;
break;
case 1600:
imageInfo.MediaType = MediaType.AppleSonyDS;
break;
case 2880:
imageInfo.MediaType = MediaType.DOS_35_HD;
break;
case 3360:
imageInfo.MediaType = MediaType.DMF;
break;
default:
imageInfo.MediaType = MediaType.GENERIC_HDD;
break;
}
if (rsrcFork.ContainsKey(0x76657273))
{
Resource versRsrc = rsrcFork.GetResource(0x76657273);
if (versRsrc != null)
{
byte[] vers = versRsrc.GetResource(versRsrc.GetIds()[0]);
Version 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 (version.MajorVersion == 3)
{
imageInfo.Application = "ShrinkWrap™";
}
else if (version.MajorVersion == 6)
{
imageInfo.Application = "DiskCopy";
}
}
}
DicConsole.DebugWriteLine("NDIF plugin", "Image application = {0} version {1}", imageInfo.Application,
imageInfo.ApplicationVersion);
sectorCache = new Dictionary <ulong, byte[]>();
chunkCache = new Dictionary <ulong, byte[]>();
currentChunkCacheSize = 0;
imageStream = imageFilter.GetDataForkStream();
buffersize = header.maxSectorsPerChunk * SECTOR_SIZE;
imageInfo.CreationTime = imageFilter.GetCreationTime();
imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
imageInfo.MediaTitle =
StringHandlers.PascalToString(header.name, Encoding.GetEncoding("macintosh"));
imageInfo.SectorSize = SECTOR_SIZE;
imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
imageInfo.ImageSize = imageInfo.Sectors * SECTOR_SIZE;
imageInfo.ApplicationVersion = "6";
imageInfo.Application = "Apple DiskCopy";
switch (imageInfo.MediaType)
{
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;
default:
imageInfo.MediaType = MediaType.GENERIC_HDD;
imageInfo.Cylinders = (uint)(imageInfo.Sectors / 16 / 63);
imageInfo.Heads = 16;
imageInfo.SectorsPerTrack = 63;
break;
}
return(true);
}