public void Open(string path)
{
string filename = Path.GetFileName(path);
string filenameNoExt = Path.GetFileNameWithoutExtension(path);
string parentFolder = Path.GetDirectoryName(path);
parentFolder ??= "";
if (filename is null ||
filenameNoExt is null)
{
throw new ArgumentNullException(nameof(path));
}
// Prepend data fork name with "R."
string proDosAppleDouble = Path.Combine(parentFolder, "R." + filename);
// Prepend data fork name with '%'
string unixAppleDouble = Path.Combine(parentFolder, "%" + filename);
// Change file extension to ADF
string dosAppleDouble = Path.Combine(parentFolder, filenameNoExt + ".ADF");
// Change file extension to adf
string dosAppleDoubleLower = Path.Combine(parentFolder, filenameNoExt + ".adf");
// Store AppleDouble header file in ".AppleDouble" folder with same name
string netatalkAppleDouble = Path.Combine(parentFolder, ".AppleDouble", filename);
// Store AppleDouble header file in "resource.frk" folder with same name
string daveAppleDouble = Path.Combine(parentFolder, "resource.frk", filename);
// Prepend data fork name with "._"
string osxAppleDouble = Path.Combine(parentFolder, "._" + filename);
// Adds ".rsrc" extension
string unArAppleDouble = Path.Combine(parentFolder, filename + ".rsrc");
// Check AppleDouble created by A/UX in ProDOS filesystem
if (File.Exists(proDosAppleDouble))
{
var prodosStream = new FileStream(proDosAppleDouble, FileMode.Open, FileAccess.Read);
if (prodosStream.Length > 26)
{
byte[] prodosB = new byte[26];
prodosStream.Read(prodosB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(prodosB);
prodosStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = proDosAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in UFS filesystem
if (File.Exists(unixAppleDouble))
{
var unixStream = new FileStream(unixAppleDouble, FileMode.Open, FileAccess.Read);
if (unixStream.Length > 26)
{
byte[] unixB = new byte[26];
unixStream.Read(unixB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unixB);
unixStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = unixAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in FAT filesystem
if (File.Exists(dosAppleDouble))
{
var dosStream = new FileStream(dosAppleDouble, FileMode.Open, FileAccess.Read);
if (dosStream.Length > 26)
{
byte[] dosB = new byte[26];
dosStream.Read(dosB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dosB);
dosStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = dosAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in case preserving FAT filesystem
if (File.Exists(dosAppleDoubleLower))
{
var doslStream = new FileStream(dosAppleDoubleLower, FileMode.Open, FileAccess.Read);
if (doslStream.Length > 26)
{
byte[] doslB = new byte[26];
doslStream.Read(doslB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(doslB);
doslStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = dosAppleDoubleLower;
}
}
}
// Check AppleDouble created by Netatalk
if (File.Exists(netatalkAppleDouble))
{
var netatalkStream = new FileStream(netatalkAppleDouble, FileMode.Open, FileAccess.Read);
if (netatalkStream.Length > 26)
{
byte[] netatalkB = new byte[26];
netatalkStream.Read(netatalkB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(netatalkB);
netatalkStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = netatalkAppleDouble;
}
}
}
// Check AppleDouble created by DAVE
if (File.Exists(daveAppleDouble))
{
var daveStream = new FileStream(daveAppleDouble, FileMode.Open, FileAccess.Read);
if (daveStream.Length > 26)
{
byte[] daveB = new byte[26];
daveStream.Read(daveB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(daveB);
daveStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = daveAppleDouble;
}
}
}
// Check AppleDouble created by Mac OS X
if (File.Exists(osxAppleDouble))
{
var osxStream = new FileStream(osxAppleDouble, FileMode.Open, FileAccess.Read);
if (osxStream.Length > 26)
{
byte[] osxB = new byte[26];
osxStream.Read(osxB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(osxB);
osxStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = osxAppleDouble;
}
}
}
// Check AppleDouble created by UnAr (from The Unarchiver)
if (File.Exists(unArAppleDouble))
{
var unarStream = new FileStream(unArAppleDouble, FileMode.Open, FileAccess.Read);
if (unarStream.Length > 26)
{
byte[] unarB = new byte[26];
unarStream.Read(unarB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unarB);
unarStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
_headerPath = unArAppleDouble;
}
}
}
var fs = new FileStream(_headerPath, FileMode.Open, FileAccess.Read);
fs.Seek(0, SeekOrigin.Begin);
byte[] hdrB = new byte[26];
fs.Read(hdrB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(hdrB);
AppleDoubleEntry[] entries = new AppleDoubleEntry[_header.entries];
for (int i = 0; i < _header.entries; i++)
{
byte[] entry = new byte[12];
fs.Read(entry, 0, 12);
entries[i] = Marshal.ByteArrayToStructureBigEndian <AppleDoubleEntry>(entry);
}
_creationTime = DateTime.UtcNow;
_lastWriteTime = _creationTime;
foreach (AppleDoubleEntry entry in entries)
{
switch ((AppleDoubleEntryID)entry.id)
{
case AppleDoubleEntryID.DataFork:
// AppleDouble have datafork in separated file
break;
case AppleDoubleEntryID.FileDates:
fs.Seek(entry.offset, SeekOrigin.Begin);
byte[] datesB = new byte[16];
fs.Read(datesB, 0, 16);
AppleDoubleFileDates dates =
Marshal.ByteArrayToStructureBigEndian <AppleDoubleFileDates>(datesB);
_creationTime = DateHandlers.UnixUnsignedToDateTime(dates.creationDate);
_lastWriteTime = DateHandlers.UnixUnsignedToDateTime(dates.modificationDate);
break;
case AppleDoubleEntryID.FileInfo:
fs.Seek(entry.offset, SeekOrigin.Begin);
byte[] finfo = new byte[entry.length];
fs.Read(finfo, 0, finfo.Length);
if (_macintoshHome.SequenceEqual(_header.homeFilesystem))
{
AppleDoubleMacFileInfo macinfo =
Marshal.ByteArrayToStructureBigEndian <AppleDoubleMacFileInfo>(finfo);
_creationTime = DateHandlers.MacToDateTime(macinfo.creationDate);
_lastWriteTime = DateHandlers.MacToDateTime(macinfo.modificationDate);
}
else if (_proDosHome.SequenceEqual(_header.homeFilesystem))
{
AppleDoubleProDOSFileInfo prodosinfo =
Marshal.ByteArrayToStructureBigEndian <AppleDoubleProDOSFileInfo>(finfo);
_creationTime = DateHandlers.MacToDateTime(prodosinfo.creationDate);
_lastWriteTime = DateHandlers.MacToDateTime(prodosinfo.modificationDate);
}
else if (_unixHome.SequenceEqual(_header.homeFilesystem))
{
AppleDoubleUnixFileInfo unixinfo =
Marshal.ByteArrayToStructureBigEndian <AppleDoubleUnixFileInfo>(finfo);
_creationTime = DateHandlers.UnixUnsignedToDateTime(unixinfo.creationDate);
_lastWriteTime = DateHandlers.UnixUnsignedToDateTime(unixinfo.modificationDate);
}
else if (_dosHome.SequenceEqual(_header.homeFilesystem))
{
AppleDoubleDOSFileInfo dosinfo =
Marshal.ByteArrayToStructureBigEndian <AppleDoubleDOSFileInfo>(finfo);
_lastWriteTime =
DateHandlers.DosToDateTime(dosinfo.modificationDate, dosinfo.modificationTime);
}
break;
case AppleDoubleEntryID.ResourceFork:
_rsrcFork = entry;
break;
}
}
_dataFork = new AppleDoubleEntry
{
id = (uint)AppleDoubleEntryID.DataFork
};
if (File.Exists(path))
{
var dataFs = new FileStream(path, FileMode.Open, FileAccess.Read);
_dataFork.length = (uint)dataFs.Length;
dataFs.Close();
}
fs.Close();
_opened = true;
_basePath = path;
}
public void Open(string path)
{
string filename = Path.GetFileName(path);
string filenameNoExt = Path.GetFileNameWithoutExtension(path);
string parentFolder = Path.GetDirectoryName(path);
// Prepend data fork name with "R."
string ProDosAppleDouble =
Path.Combine(parentFolder ?? throw new InvalidOperationException(), "R." + filename);
// Prepend data fork name with '%'
string UNIXAppleDouble = Path.Combine(parentFolder, "%" + filename);
// Change file extension to ADF
string DOSAppleDouble = Path.Combine(parentFolder, filenameNoExt + ".ADF");
// Change file extension to adf
string DOSAppleDoubleLower = Path.Combine(parentFolder, filenameNoExt + ".adf");
// Store AppleDouble header file in ".AppleDouble" folder with same name
string NetatalkAppleDouble =
Path.Combine(parentFolder, ".AppleDouble", filename ?? throw new InvalidOperationException());
// Store AppleDouble header file in "resource.frk" folder with same name
string DAVEAppleDouble = Path.Combine(parentFolder, "resource.frk", filename);
// Prepend data fork name with "._"
string OSXAppleDouble = Path.Combine(parentFolder, "._" + filename);
// Adds ".rsrc" extension
string UnArAppleDouble = Path.Combine(parentFolder, filename + ".rsrc");
// Check AppleDouble created by A/UX in ProDOS filesystem
if (File.Exists(ProDosAppleDouble))
{
FileStream prodosStream = new FileStream(ProDosAppleDouble, FileMode.Open, FileAccess.Read);
if (prodosStream.Length > 26)
{
byte[] prodos_b = new byte[26];
prodosStream.Read(prodos_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(prodos_b);
prodosStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = ProDosAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in UFS filesystem
if (File.Exists(UNIXAppleDouble))
{
FileStream unixStream = new FileStream(UNIXAppleDouble, FileMode.Open, FileAccess.Read);
if (unixStream.Length > 26)
{
byte[] unix_b = new byte[26];
unixStream.Read(unix_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unix_b);
unixStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = UNIXAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in FAT filesystem
if (File.Exists(DOSAppleDouble))
{
FileStream dosStream = new FileStream(DOSAppleDouble, FileMode.Open, FileAccess.Read);
if (dosStream.Length > 26)
{
byte[] dos_b = new byte[26];
dosStream.Read(dos_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dos_b);
dosStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = DOSAppleDouble;
}
}
}
// Check AppleDouble created by A/UX in case preserving FAT filesystem
if (File.Exists(DOSAppleDoubleLower))
{
FileStream doslStream = new FileStream(DOSAppleDoubleLower, FileMode.Open, FileAccess.Read);
if (doslStream.Length > 26)
{
byte[] dosl_b = new byte[26];
doslStream.Read(dosl_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dosl_b);
doslStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = DOSAppleDoubleLower;
}
}
}
// Check AppleDouble created by Netatalk
if (File.Exists(NetatalkAppleDouble))
{
FileStream netatalkStream = new FileStream(NetatalkAppleDouble, FileMode.Open, FileAccess.Read);
if (netatalkStream.Length > 26)
{
byte[] netatalk_b = new byte[26];
netatalkStream.Read(netatalk_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(netatalk_b);
netatalkStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = NetatalkAppleDouble;
}
}
}
// Check AppleDouble created by DAVE
if (File.Exists(DAVEAppleDouble))
{
FileStream daveStream = new FileStream(DAVEAppleDouble, FileMode.Open, FileAccess.Read);
if (daveStream.Length > 26)
{
byte[] dave_b = new byte[26];
daveStream.Read(dave_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dave_b);
daveStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = DAVEAppleDouble;
}
}
}
// Check AppleDouble created by Mac OS X
if (File.Exists(OSXAppleDouble))
{
FileStream osxStream = new FileStream(OSXAppleDouble, FileMode.Open, FileAccess.Read);
if (osxStream.Length > 26)
{
byte[] osx_b = new byte[26];
osxStream.Read(osx_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(osx_b);
osxStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = OSXAppleDouble;
}
}
}
// Check AppleDouble created by UnAr (from The Unarchiver)
if (File.Exists(UnArAppleDouble))
{
FileStream unarStream = new FileStream(UnArAppleDouble, FileMode.Open, FileAccess.Read);
if (unarStream.Length > 26)
{
byte[] unar_b = new byte[26];
unarStream.Read(unar_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unar_b);
unarStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
headerPath = UnArAppleDouble;
}
}
}
FileStream fs = new FileStream(headerPath, FileMode.Open, FileAccess.Read);
fs.Seek(0, SeekOrigin.Begin);
byte[] hdr_b = new byte[26];
fs.Read(hdr_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(hdr_b);
AppleDoubleEntry[] entries = new AppleDoubleEntry[header.entries];
for (int i = 0; i < header.entries; i++)
{
byte[] entry = new byte[12];
fs.Read(entry, 0, 12);
entries[i] = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleEntry>(entry);
}
creationTime = DateTime.UtcNow;
lastWriteTime = creationTime;
foreach (AppleDoubleEntry entry in entries)
{
switch ((AppleDoubleEntryID)entry.id)
{
case AppleDoubleEntryID.DataFork:
// AppleDouble have datafork in separated file
break;
case AppleDoubleEntryID.FileDates:
fs.Seek(entry.offset, SeekOrigin.Begin);
byte[] dates_b = new byte[16];
fs.Read(dates_b, 0, 16);
AppleDoubleFileDates dates =
BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleFileDates>(dates_b);
creationTime = DateHandlers.UnixUnsignedToDateTime(dates.creationDate);
lastWriteTime = DateHandlers.UnixUnsignedToDateTime(dates.modificationDate);
break;
case AppleDoubleEntryID.FileInfo:
fs.Seek(entry.offset, SeekOrigin.Begin);
byte[] finfo = new byte[entry.length];
fs.Read(finfo, 0, finfo.Length);
if (MacintoshHome.SequenceEqual(header.homeFilesystem))
{
AppleDoubleMacFileInfo macinfo =
BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleMacFileInfo>(finfo);
creationTime = DateHandlers.MacToDateTime(macinfo.creationDate);
lastWriteTime = DateHandlers.MacToDateTime(macinfo.modificationDate);
}
else if (ProDOSHome.SequenceEqual(header.homeFilesystem))
{
AppleDoubleProDOSFileInfo prodosinfo =
BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleProDOSFileInfo>(finfo);
creationTime = DateHandlers.MacToDateTime(prodosinfo.creationDate);
lastWriteTime = DateHandlers.MacToDateTime(prodosinfo.modificationDate);
}
else if (UNIXHome.SequenceEqual(header.homeFilesystem))
{
AppleDoubleUNIXFileInfo unixinfo =
BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleUNIXFileInfo>(finfo);
creationTime = DateHandlers.UnixUnsignedToDateTime(unixinfo.creationDate);
lastWriteTime = DateHandlers.UnixUnsignedToDateTime(unixinfo.modificationDate);
}
else if (DOSHome.SequenceEqual(header.homeFilesystem))
{
AppleDoubleDOSFileInfo dosinfo =
BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleDOSFileInfo>(finfo);
lastWriteTime =
DateHandlers.DosToDateTime(dosinfo.modificationDate, dosinfo.modificationTime);
}
break;
case AppleDoubleEntryID.ResourceFork:
rsrcFork = entry;
break;
}
}
dataFork = new AppleDoubleEntry {
id = (uint)AppleDoubleEntryID.DataFork
};
if (File.Exists(path))
{
FileStream dataFs = new FileStream(path, FileMode.Open, FileAccess.Read);
dataFork.length = (uint)dataFs.Length;
dataFs.Close();
}
fs.Close();
opened = true;
basePath = path;
}
public bool Identify(string path)
{
string filename = Path.GetFileName(path);
string filenameNoExt = Path.GetFileNameWithoutExtension(path);
string parentFolder = Path.GetDirectoryName(path);
parentFolder ??= "";
if (filename is null ||
filenameNoExt is null)
{
return(false);
}
// Prepend data fork name with "R."
string proDosAppleDouble = Path.Combine(parentFolder, "R." + filename);
// Prepend data fork name with '%'
string unixAppleDouble = Path.Combine(parentFolder, "%" + filename);
// Change file extension to ADF
string dosAppleDouble = Path.Combine(parentFolder, filenameNoExt + ".ADF");
// Change file extension to adf
string dosAppleDoubleLower = Path.Combine(parentFolder, filenameNoExt + ".adf");
// Store AppleDouble header file in ".AppleDouble" folder with same name
string netatalkAppleDouble = Path.Combine(parentFolder, ".AppleDouble", filename);
// Store AppleDouble header file in "resource.frk" folder with same name
string daveAppleDouble = Path.Combine(parentFolder, "resource.frk", filename);
// Prepend data fork name with "._"
string osxAppleDouble = Path.Combine(parentFolder, "._" + filename);
// Adds ".rsrc" extension
string unArAppleDouble = Path.Combine(parentFolder, filename + ".rsrc");
// Check AppleDouble created by A/UX in ProDOS filesystem
if (File.Exists(proDosAppleDouble))
{
var prodosStream = new FileStream(proDosAppleDouble, FileMode.Open, FileAccess.Read);
if (prodosStream.Length > 26)
{
byte[] prodosB = new byte[26];
prodosStream.Read(prodosB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(prodosB);
prodosStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in UFS filesystem
if (File.Exists(unixAppleDouble))
{
var unixStream = new FileStream(unixAppleDouble, FileMode.Open, FileAccess.Read);
if (unixStream.Length > 26)
{
byte[] unixB = new byte[26];
unixStream.Read(unixB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unixB);
unixStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in FAT filesystem
if (File.Exists(dosAppleDouble))
{
var dosStream = new FileStream(dosAppleDouble, FileMode.Open, FileAccess.Read);
if (dosStream.Length > 26)
{
byte[] dosB = new byte[26];
dosStream.Read(dosB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dosB);
dosStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in case preserving FAT filesystem
if (File.Exists(dosAppleDoubleLower))
{
var doslStream = new FileStream(dosAppleDoubleLower, FileMode.Open, FileAccess.Read);
if (doslStream.Length > 26)
{
byte[] doslB = new byte[26];
doslStream.Read(doslB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(doslB);
doslStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by Netatalk
if (File.Exists(netatalkAppleDouble))
{
var netatalkStream = new FileStream(netatalkAppleDouble, FileMode.Open, FileAccess.Read);
if (netatalkStream.Length > 26)
{
byte[] netatalkB = new byte[26];
netatalkStream.Read(netatalkB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(netatalkB);
netatalkStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by DAVE
if (File.Exists(daveAppleDouble))
{
var daveStream = new FileStream(daveAppleDouble, FileMode.Open, FileAccess.Read);
if (daveStream.Length > 26)
{
byte[] daveB = new byte[26];
daveStream.Read(daveB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(daveB);
daveStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by Mac OS X
if (File.Exists(osxAppleDouble))
{
var osxStream = new FileStream(osxAppleDouble, FileMode.Open, FileAccess.Read);
if (osxStream.Length > 26)
{
byte[] osxB = new byte[26];
osxStream.Read(osxB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(osxB);
osxStream.Close();
if (_header.magic == MAGIC &&
(_header.version == VERSION || _header.version == VERSION2))
{
return(true);
}
}
}
// Check AppleDouble created by UnAr (from The Unarchiver)
if (!File.Exists(unArAppleDouble))
{
return(false);
}
var unarStream = new FileStream(unArAppleDouble, FileMode.Open, FileAccess.Read);
if (unarStream.Length <= 26)
{
return(false);
}
byte[] unarB = new byte[26];
unarStream.Read(unarB, 0, 26);
_header = Marshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unarB);
unarStream.Close();
return(_header.magic == MAGIC && (_header.version == VERSION || _header.version == VERSION2));
}
public bool Identify(string path)
{
string filename = Path.GetFileName(path);
string filenameNoExt = Path.GetFileNameWithoutExtension(path);
string parentFolder = Path.GetDirectoryName(path);
// Prepend data fork name with "R."
string ProDosAppleDouble =
Path.Combine(parentFolder ?? throw new InvalidOperationException(), "R." + filename);
// Prepend data fork name with '%'
string UNIXAppleDouble = Path.Combine(parentFolder, "%" + filename);
// Change file extension to ADF
string DOSAppleDouble = Path.Combine(parentFolder, filenameNoExt + ".ADF");
// Change file extension to adf
string DOSAppleDoubleLower = Path.Combine(parentFolder, filenameNoExt + ".adf");
// Store AppleDouble header file in ".AppleDouble" folder with same name
string NetatalkAppleDouble =
Path.Combine(parentFolder, ".AppleDouble", filename ?? throw new InvalidOperationException());
// Store AppleDouble header file in "resource.frk" folder with same name
string DAVEAppleDouble = Path.Combine(parentFolder, "resource.frk", filename);
// Prepend data fork name with "._"
string OSXAppleDouble = Path.Combine(parentFolder, "._" + filename);
// Adds ".rsrc" extension
string UnArAppleDouble = Path.Combine(parentFolder, filename + ".rsrc");
// Check AppleDouble created by A/UX in ProDOS filesystem
if (File.Exists(ProDosAppleDouble))
{
FileStream prodosStream = new FileStream(ProDosAppleDouble, FileMode.Open, FileAccess.Read);
if (prodosStream.Length > 26)
{
byte[] prodos_b = new byte[26];
prodosStream.Read(prodos_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(prodos_b);
prodosStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in UFS filesystem
if (File.Exists(UNIXAppleDouble))
{
FileStream unixStream = new FileStream(UNIXAppleDouble, FileMode.Open, FileAccess.Read);
if (unixStream.Length > 26)
{
byte[] unix_b = new byte[26];
unixStream.Read(unix_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unix_b);
unixStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in FAT filesystem
if (File.Exists(DOSAppleDouble))
{
FileStream dosStream = new FileStream(DOSAppleDouble, FileMode.Open, FileAccess.Read);
if (dosStream.Length > 26)
{
byte[] dos_b = new byte[26];
dosStream.Read(dos_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dos_b);
dosStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by A/UX in case preserving FAT filesystem
if (File.Exists(DOSAppleDoubleLower))
{
FileStream doslStream = new FileStream(DOSAppleDoubleLower, FileMode.Open, FileAccess.Read);
if (doslStream.Length > 26)
{
byte[] dosl_b = new byte[26];
doslStream.Read(dosl_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dosl_b);
doslStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by Netatalk
if (File.Exists(NetatalkAppleDouble))
{
FileStream netatalkStream = new FileStream(NetatalkAppleDouble, FileMode.Open, FileAccess.Read);
if (netatalkStream.Length > 26)
{
byte[] netatalk_b = new byte[26];
netatalkStream.Read(netatalk_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(netatalk_b);
netatalkStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by DAVE
if (File.Exists(DAVEAppleDouble))
{
FileStream daveStream = new FileStream(DAVEAppleDouble, FileMode.Open, FileAccess.Read);
if (daveStream.Length > 26)
{
byte[] dave_b = new byte[26];
daveStream.Read(dave_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(dave_b);
daveStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by Mac OS X
if (File.Exists(OSXAppleDouble))
{
FileStream osxStream = new FileStream(OSXAppleDouble, FileMode.Open, FileAccess.Read);
if (osxStream.Length > 26)
{
byte[] osx_b = new byte[26];
osxStream.Read(osx_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(osx_b);
osxStream.Close();
if (header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2))
{
return(true);
}
}
}
// Check AppleDouble created by UnAr (from The Unarchiver)
if (!File.Exists(UnArAppleDouble))
{
return(false);
}
FileStream unarStream = new FileStream(UnArAppleDouble, FileMode.Open, FileAccess.Read);
if (unarStream.Length <= 26)
{
return(false);
}
byte[] unar_b = new byte[26];
unarStream.Read(unar_b, 0, 26);
header = BigEndianMarshal.ByteArrayToStructureBigEndian <AppleDoubleHeader>(unar_b);
unarStream.Close();
return(header.magic == AppleDoubleMagic &&
(header.version == AppleDoubleVersion || header.version == AppleDoubleVersion2));
}
