Move to file scoped namespaces.

This commit is contained in:
2022-03-06 13:29:38 +00:00
parent b6c3a54955
commit 0bc819feab
1322 changed files with 268651 additions and 270003 deletions

View File

@@ -37,74 +37,73 @@ using Aaru.CommonTypes.Interfaces;
using Aaru.CommonTypes.Structs;
using Schemas;
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
/// <inheritdoc />
/// <summary>Implements the CP/M filesystem</summary>
public sealed partial class CPM : IReadOnlyFilesystem
{
/// <summary>True if <see cref="Identify" /> thinks this is a CP/M filesystem</summary>
bool _cpmFound;
/// <summary>Cached <see cref="FileSystemInfo" /></summary>
FileSystemInfo _cpmStat;
/// <summary>Cached file passwords, decoded</summary>
Dictionary<string, byte[]> _decodedPasswordCache;
/// <summary>Stores all known CP/M disk definitions</summary>
CpmDefinitions _definitions;
IMediaImage _device;
/// <summary>Cached directory listing</summary>
List<string> _dirList;
/// <summary>CP/M disc parameter block (on-memory)</summary>
DiscParameterBlock _dpb;
/// <summary>Cached file data</summary>
Dictionary<string, byte[]> _fileCache;
/// <summary>The volume label, if the CP/M filesystem contains one</summary>
string _label;
/// <summary>Timestamp in volume label for creation</summary>
byte[] _labelCreationDate;
/// <summary>Timestamp in volume label for update</summary>
byte[] _labelUpdateDate;
bool _mounted;
/// <summary>Cached file passwords</summary>
Dictionary<string, byte[]> _passwordCache;
/// <summary>Sector deinterleaving mask</summary>
int[] _sectorMask;
/// <summary>True if there are CP/M 3 timestamps</summary>
bool _standardTimestamps;
/// <summary>Cached file <see cref="FileEntryInfo" /></summary>
Dictionary<string, FileEntryInfo> _statCache;
/// <summary>True if there are timestamps in Z80DOS or DOS+ format</summary>
bool _thirdPartyTimestamps;
/// <summary>If <see cref="Identify" /> thinks this is a CP/M filesystem, this is the definition for it</summary>
CpmDefinition _workingDefinition;
/// <inheritdoc />
/// <summary>Implements the CP/M filesystem</summary>
public sealed partial class CPM : IReadOnlyFilesystem
public FileSystemType XmlFsType { get; private set; }
/// <inheritdoc />
public Encoding Encoding { get; private set; }
/// <inheritdoc />
public string Name => "CP/M File System";
/// <inheritdoc />
public Guid Id => new("AA2B8585-41DF-4E3B-8A35-D1A935E2F8A1");
/// <inheritdoc />
public string Author => "Natalia Portillo";
/// <inheritdoc />
public IEnumerable<(string name, Type type, string description)> SupportedOptions =>
new (string name, Type type, string description)[]
{};
/// <inheritdoc />
public Dictionary<string, string> Namespaces => null;
static Dictionary<string, string> GetDefaultOptions() => new()
{
/// <summary>True if <see cref="Identify" /> thinks this is a CP/M filesystem</summary>
bool _cpmFound;
/// <summary>Cached <see cref="FileSystemInfo" /></summary>
FileSystemInfo _cpmStat;
/// <summary>Cached file passwords, decoded</summary>
Dictionary<string, byte[]> _decodedPasswordCache;
/// <summary>Stores all known CP/M disk definitions</summary>
CpmDefinitions _definitions;
IMediaImage _device;
/// <summary>Cached directory listing</summary>
List<string> _dirList;
/// <summary>CP/M disc parameter block (on-memory)</summary>
DiscParameterBlock _dpb;
/// <summary>Cached file data</summary>
Dictionary<string, byte[]> _fileCache;
/// <summary>The volume label, if the CP/M filesystem contains one</summary>
string _label;
/// <summary>Timestamp in volume label for creation</summary>
byte[] _labelCreationDate;
/// <summary>Timestamp in volume label for update</summary>
byte[] _labelUpdateDate;
bool _mounted;
/// <summary>Cached file passwords</summary>
Dictionary<string, byte[]> _passwordCache;
/// <summary>Sector deinterleaving mask</summary>
int[] _sectorMask;
/// <summary>True if there are CP/M 3 timestamps</summary>
bool _standardTimestamps;
/// <summary>Cached file <see cref="FileEntryInfo" /></summary>
Dictionary<string, FileEntryInfo> _statCache;
/// <summary>True if there are timestamps in Z80DOS or DOS+ format</summary>
bool _thirdPartyTimestamps;
/// <summary>If <see cref="Identify" /> thinks this is a CP/M filesystem, this is the definition for it</summary>
CpmDefinition _workingDefinition;
/// <inheritdoc />
public FileSystemType XmlFsType { get; private set; }
/// <inheritdoc />
public Encoding Encoding { get; private set; }
/// <inheritdoc />
public string Name => "CP/M File System";
/// <inheritdoc />
public Guid Id => new("AA2B8585-41DF-4E3B-8A35-D1A935E2F8A1");
/// <inheritdoc />
public string Author => "Natalia Portillo";
/// <inheritdoc />
public IEnumerable<(string name, Type type, string description)> SupportedOptions =>
new (string name, Type type, string description)[]
{};
/// <inheritdoc />
public Dictionary<string, string> Namespaces => null;
static Dictionary<string, string> GetDefaultOptions() => new()
{
{
"debug", false.ToString()
}
};
}
"debug", false.ToString()
}
};
}

View File

@@ -32,33 +32,32 @@
// ReSharper disable InconsistentNaming
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <summary>Enumerates the format identification byte used by CP/M-86</summary>
enum FormatByte : byte
{
/// <summary>Enumerates the format identification byte used by CP/M-86</summary>
enum FormatByte : byte
{
/// <summary>5.25" double-density single-side 8 sectors/track</summary>
k160 = 0,
/// <summary>5.25" double-density double-side 8 sectors/track</summary>
k320 = 1,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360 = 0x10,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360Alt = 0x40,
/// <summary>3.5" double-density double-side 9 sectors/track</summary>
k720 = 0x11,
/// <summary>3.5" double-density double-side 9 sectors/track using FEAT144</summary>
f720 = 0x48,
/// <summary>5.25" high-density double-side 15 sectors/track using FEAT144</summary>
f1200 = 0x0C,
/// <summary>3.5" high-density double-side 18 sectors/track using FEAT144</summary>
f1440 = 0x90,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360Alt2 = 0x26,
/// <summary>3.5" double-density double-side 9 sectors/track</summary>
k720Alt = 0x94
}
/// <summary>5.25" double-density single-side 8 sectors/track</summary>
k160 = 0,
/// <summary>5.25" double-density double-side 8 sectors/track</summary>
k320 = 1,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360 = 0x10,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360Alt = 0x40,
/// <summary>3.5" double-density double-side 9 sectors/track</summary>
k720 = 0x11,
/// <summary>3.5" double-density double-side 9 sectors/track using FEAT144</summary>
f720 = 0x48,
/// <summary>5.25" high-density double-side 15 sectors/track using FEAT144</summary>
f1200 = 0x0C,
/// <summary>3.5" high-density double-side 18 sectors/track using FEAT144</summary>
f1440 = 0x90,
/// <summary>5.25" double-density double-side 9 sectors/track</summary>
k360Alt2 = 0x26,
/// <summary>3.5" double-density double-side 9 sectors/track</summary>
k720Alt = 0x94
}
}

View File

@@ -38,136 +38,135 @@ using System.Reflection;
using System.Xml;
using System.Xml.Serialization;
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <summary>Loads all the known CP/M disk definitions from an XML stored as an embedded resource.</summary>
/// <returns>The definitions.</returns>
bool LoadDefinitions()
{
/// <summary>Loads all the known CP/M disk definitions from an XML stored as an embedded resource.</summary>
/// <returns>The definitions.</returns>
bool LoadDefinitions()
try
{
try
var defsReader =
XmlReader.Create(Assembly.GetExecutingAssembly().
GetManifestResourceStream("Aaru.Filesystems.CPM.cpmdefs.xml") ??
new MemoryStream());
var defsSerializer = new XmlSerializer(typeof(CpmDefinitions));
_definitions = (CpmDefinitions)defsSerializer.Deserialize(defsReader);
// Patch definitions
foreach(CpmDefinition def in _definitions.definitions)
{
var defsReader =
XmlReader.Create(Assembly.GetExecutingAssembly().
GetManifestResourceStream("Aaru.Filesystems.CPM.cpmdefs.xml") ??
new MemoryStream());
var defsSerializer = new XmlSerializer(typeof(CpmDefinitions));
_definitions = (CpmDefinitions)defsSerializer.Deserialize(defsReader);
// Patch definitions
foreach(CpmDefinition def in _definitions.definitions)
if(def.side1 == null)
{
if(def.side1 == null)
def.side1 = new Side
{
def.side1 = new Side
{
sideId = 0,
sectorIds = new int[def.sectorsPerTrack]
};
sideId = 0,
sectorIds = new int[def.sectorsPerTrack]
};
for(int i = 0; i < def.sectorsPerTrack; i++)
def.side1.sectorIds[i] = i + 1;
}
if(def.sides != 2 ||
def.side2 != null)
continue;
{
def.side2 = new Side
{
sideId = 1,
sectorIds = new int[def.sectorsPerTrack]
};
for(int i = 0; i < def.sectorsPerTrack; i++)
def.side2.sectorIds[i] = i + 1;
}
for(int i = 0; i < def.sectorsPerTrack; i++)
def.side1.sectorIds[i] = i + 1;
}
return true;
}
catch
{
return false;
if(def.sides != 2 ||
def.side2 != null)
continue;
{
def.side2 = new Side
{
sideId = 1,
sectorIds = new int[def.sectorsPerTrack]
};
for(int i = 0; i < def.sectorsPerTrack; i++)
def.side2.sectorIds[i] = i + 1;
}
}
return true;
}
catch
{
return false;
}
}
}
/// <summary>CP/M disk definitions</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class CpmDefinitions
{
/// <summary>Timestamp of creation of the CP/M disk definitions list</summary>
public DateTime creation;
/// <summary>List of all CP/M disk definitions</summary>
public List<CpmDefinition> definitions;
}
/// <summary>CP/M disk definitions</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class CpmDefinitions
{
/// <summary>Timestamp of creation of the CP/M disk definitions list</summary>
public DateTime creation;
/// <summary>List of all CP/M disk definitions</summary>
public List<CpmDefinition> definitions;
}
/// <summary>CP/M disk definition</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class CpmDefinition
{
/// <summary>Maps the first 16 allocation blocks for reservation, high byte</summary>
public int al0;
/// <summary>Maps the first 16 allocation blocks for reservation, low byte</summary>
public int al1;
/// <summary>Controller bitrate</summary>
public string bitrate;
/// <summary>Block mask for <see cref="bsh" /></summary>
public int blm;
/// <summary>Left shifts needed to translate allocation block number to lba</summary>
public int bsh;
/// <summary>Physical bytes per sector</summary>
public int bytesPerSector;
/// <summary>Comment and description</summary>
public string comment;
/// <summary>If true, all bytes written on disk are negated</summary>
public bool complement;
/// <summary>Total cylinders</summary>
public int cylinders;
/// <summary>Total number of available directory entries</summary>
public int drm;
/// <summary>Total number of 128 byte records on disk</summary>
public int dsm;
/// <summary>Encoding, "FM", "MFM", "GCR"</summary>
public string encoding;
/// <summary>Absolutely unknown?</summary>
public bool evenOdd;
/// <summary>Extent mask</summary>
public int exm;
/// <summary>Disk definition label</summary>
public string label;
/// <summary>Tracks at the beginning of disk reserved for BIOS/BDOS</summary>
public int ofs;
/// <summary>
/// Cylinder/side ordering. SIDES = change side after each track, CYLINDERS = change side after whole side, EAGLE
/// and COLUMBIA unknown
/// </summary>
public string order;
/// <summary>Physical sectors per side</summary>
public int sectorsPerTrack;
/// <summary>Description of controller's side 0 (usually, upper side)</summary>
public Side side1;
/// <summary>Description of controller's side 1 (usually, lower side)</summary>
public Side side2;
/// <summary>Total sides</summary>
public int sides;
/// <summary>Physical sector interleaving</summary>
public int skew;
/// <summary>Sectors at the beginning of disk reserved for BIOS/BDOS</summary>
public int sofs;
}
/// <summary>CP/M disk definition</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class CpmDefinition
{
/// <summary>Maps the first 16 allocation blocks for reservation, high byte</summary>
public int al0;
/// <summary>Maps the first 16 allocation blocks for reservation, low byte</summary>
public int al1;
/// <summary>Controller bitrate</summary>
public string bitrate;
/// <summary>Block mask for <see cref="bsh" /></summary>
public int blm;
/// <summary>Left shifts needed to translate allocation block number to lba</summary>
public int bsh;
/// <summary>Physical bytes per sector</summary>
public int bytesPerSector;
/// <summary>Comment and description</summary>
public string comment;
/// <summary>If true, all bytes written on disk are negated</summary>
public bool complement;
/// <summary>Total cylinders</summary>
public int cylinders;
/// <summary>Total number of available directory entries</summary>
public int drm;
/// <summary>Total number of 128 byte records on disk</summary>
public int dsm;
/// <summary>Encoding, "FM", "MFM", "GCR"</summary>
public string encoding;
/// <summary>Absolutely unknown?</summary>
public bool evenOdd;
/// <summary>Extent mask</summary>
public int exm;
/// <summary>Disk definition label</summary>
public string label;
/// <summary>Tracks at the beginning of disk reserved for BIOS/BDOS</summary>
public int ofs;
/// <summary>
/// Cylinder/side ordering. SIDES = change side after each track, CYLINDERS = change side after whole side, EAGLE
/// and COLUMBIA unknown
/// </summary>
public string order;
/// <summary>Physical sectors per side</summary>
public int sectorsPerTrack;
/// <summary>Description of controller's side 0 (usually, upper side)</summary>
public Side side1;
/// <summary>Description of controller's side 1 (usually, lower side)</summary>
public Side side2;
/// <summary>Total sides</summary>
public int sides;
/// <summary>Physical sector interleaving</summary>
public int skew;
/// <summary>Sectors at the beginning of disk reserved for BIOS/BDOS</summary>
public int sofs;
}
/// <summary>Side descriptions</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class Side
{
/// <summary>Software interleaving mask, [1,3,0,2] means CP/M LBA 0 is physical sector 1, LBA 1 = 3, so on</summary>
public int[] sectorIds;
/// <summary>Side ID as found in each sector address mark</summary>
public int sideId;
}
/// <summary>Side descriptions</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
public sealed class Side
{
/// <summary>Software interleaving mask, [1,3,0,2] means CP/M LBA 0 is physical sector 1, LBA 1 = 3, so on</summary>
public int[] sectorIds;
/// <summary>Side ID as found in each sector address mark</summary>
public int sideId;
}

View File

@@ -37,93 +37,92 @@ using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Structs;
using Aaru.Helpers;
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <inheritdoc />
public ErrorNumber ReadDir(string path, out List<string> contents)
{
/// <inheritdoc />
public ErrorNumber ReadDir(string path, out List<string> contents)
contents = null;
if(!_mounted)
return ErrorNumber.AccessDenied;
if(!string.IsNullOrEmpty(path) &&
string.Compare(path, "/", StringComparison.OrdinalIgnoreCase) != 0)
return ErrorNumber.NotSupported;
contents = new List<string>(_dirList);
return ErrorNumber.NoError;
}
/// <summary>
/// Checks that the given directory blocks follow the CP/M filesystem directory specification Corrupted
/// directories will fail. FAT directories will false positive if all files start with 0x05, and do not use full
/// extensions, for example: "σAFILE.GZ" (using code page 437)
/// </summary>
/// <returns>False if the directory does not follow the directory specification</returns>
/// <param name="directory">Directory blocks.</param>
bool CheckDir(byte[] directory)
{
try
{
contents = null;
if(!_mounted)
return ErrorNumber.AccessDenied;
if(!string.IsNullOrEmpty(path) &&
string.Compare(path, "/", StringComparison.OrdinalIgnoreCase) != 0)
return ErrorNumber.NotSupported;
contents = new List<string>(_dirList);
return ErrorNumber.NoError;
}
/// <summary>
/// Checks that the given directory blocks follow the CP/M filesystem directory specification Corrupted
/// directories will fail. FAT directories will false positive if all files start with 0x05, and do not use full
/// extensions, for example: "σAFILE.GZ" (using code page 437)
/// </summary>
/// <returns>False if the directory does not follow the directory specification</returns>
/// <param name="directory">Directory blocks.</param>
bool CheckDir(byte[] directory)
{
try
{
if(directory == null)
return false;
int fileCount = 0;
for(int off = 0; off < directory.Length; off += 32)
{
DirectoryEntry entry = Marshal.ByteArrayToStructureLittleEndian<DirectoryEntry>(directory, off, 32);
if((entry.statusUser & 0x7F) < 0x20)
{
for(int f = 0; f < 8; f++)
if(entry.filename[f] < 0x20 &&
entry.filename[f] != 0x00)
return false;
for(int e = 0; e < 3; e++)
if(entry.extension[e] < 0x20 &&
entry.extension[e] != 0x00)
return false;
if(!ArrayHelpers.ArrayIsNullOrWhiteSpace(entry.filename))
fileCount++;
}
else if(entry.statusUser == 0x20)
{
for(int f = 0; f < 8; f++)
if(entry.filename[f] < 0x20 &&
entry.filename[f] != 0x00)
return false;
for(int e = 0; e < 3; e++)
if(entry.extension[e] < 0x20 &&
entry.extension[e] != 0x00)
return false;
_label = Encoding.ASCII.GetString(directory, off + 1, 11).Trim();
_labelCreationDate = new byte[4];
_labelUpdateDate = new byte[4];
Array.Copy(directory, off + 24, _labelCreationDate, 0, 4);
Array.Copy(directory, off + 28, _labelUpdateDate, 0, 4);
}
else if(entry.statusUser == 0x21)
if(directory[off + 1] == 0x00)
_thirdPartyTimestamps = true;
else
_standardTimestamps |= directory[off + 21] == 0x00 && directory[off + 31] == 0x00;
}
return fileCount > 0;
}
catch
{
if(directory == null)
return false;
int fileCount = 0;
for(int off = 0; off < directory.Length; off += 32)
{
DirectoryEntry entry = Marshal.ByteArrayToStructureLittleEndian<DirectoryEntry>(directory, off, 32);
if((entry.statusUser & 0x7F) < 0x20)
{
for(int f = 0; f < 8; f++)
if(entry.filename[f] < 0x20 &&
entry.filename[f] != 0x00)
return false;
for(int e = 0; e < 3; e++)
if(entry.extension[e] < 0x20 &&
entry.extension[e] != 0x00)
return false;
if(!ArrayHelpers.ArrayIsNullOrWhiteSpace(entry.filename))
fileCount++;
}
else if(entry.statusUser == 0x20)
{
for(int f = 0; f < 8; f++)
if(entry.filename[f] < 0x20 &&
entry.filename[f] != 0x00)
return false;
for(int e = 0; e < 3; e++)
if(entry.extension[e] < 0x20 &&
entry.extension[e] != 0x00)
return false;
_label = Encoding.ASCII.GetString(directory, off + 1, 11).Trim();
_labelCreationDate = new byte[4];
_labelUpdateDate = new byte[4];
Array.Copy(directory, off + 24, _labelCreationDate, 0, 4);
Array.Copy(directory, off + 28, _labelUpdateDate, 0, 4);
}
else if(entry.statusUser == 0x21)
if(directory[off + 1] == 0x00)
_thirdPartyTimestamps = true;
else
_standardTimestamps |= directory[off + 21] == 0x00 && directory[off + 31] == 0x00;
}
return fileCount > 0;
}
catch
{
return false;
}
}
}

View File

@@ -35,133 +35,132 @@ using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Structs;
using Aaru.Helpers;
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <inheritdoc />
public ErrorNumber GetAttributes(string path, out FileAttributes attributes)
{
/// <inheritdoc />
public ErrorNumber GetAttributes(string path, out FileAttributes attributes)
attributes = new FileAttributes();
if(!_mounted)
return ErrorNumber.AccessDenied;
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
if(string.IsNullOrEmpty(pathElements[0]) ||
string.Compare(pathElements[0], "/", StringComparison.OrdinalIgnoreCase) == 0)
{
attributes = new FileAttributes();
if(!_mounted)
return ErrorNumber.AccessDenied;
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
if(string.IsNullOrEmpty(pathElements[0]) ||
string.Compare(pathElements[0], "/", StringComparison.OrdinalIgnoreCase) == 0)
{
attributes = new FileAttributes();
attributes = FileAttributes.Directory;
return ErrorNumber.NoError;
}
if(!_statCache.TryGetValue(pathElements[0].ToUpperInvariant(), out FileEntryInfo fInfo))
return ErrorNumber.NoSuchFile;
attributes = fInfo.Attributes;
attributes = FileAttributes.Directory;
return ErrorNumber.NoError;
}
// TODO: Implementing this would require storing the interleaving
/// <inheritdoc />
public ErrorNumber MapBlock(string path, long fileBlock, out long deviceBlock)
if(!_statCache.TryGetValue(pathElements[0].ToUpperInvariant(), out FileEntryInfo fInfo))
return ErrorNumber.NoSuchFile;
attributes = fInfo.Attributes;
return ErrorNumber.NoError;
}
// TODO: Implementing this would require storing the interleaving
/// <inheritdoc />
public ErrorNumber MapBlock(string path, long fileBlock, out long deviceBlock)
{
deviceBlock = 0;
return !_mounted ? ErrorNumber.AccessDenied : ErrorNumber.NotImplemented;
}
/// <inheritdoc />
public ErrorNumber Read(string path, long offset, long size, ref byte[] buf)
{
if(!_mounted)
return ErrorNumber.AccessDenied;
if(size == 0)
{
deviceBlock = 0;
return !_mounted ? ErrorNumber.AccessDenied : ErrorNumber.NotImplemented;
}
/// <inheritdoc />
public ErrorNumber Read(string path, long offset, long size, ref byte[] buf)
{
if(!_mounted)
return ErrorNumber.AccessDenied;
if(size == 0)
{
buf = Array.Empty<byte>();
return ErrorNumber.NoError;
}
if(offset < 0)
return ErrorNumber.InvalidArgument;
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
if(!_fileCache.TryGetValue(pathElements[0].ToUpperInvariant(), out byte[] file))
return ErrorNumber.NoSuchFile;
if(offset >= file.Length)
return ErrorNumber.EINVAL;
if(size + offset >= file.Length)
size = file.Length - offset;
buf = new byte[size];
Array.Copy(file, offset, buf, 0, size);
buf = Array.Empty<byte>();
return ErrorNumber.NoError;
}
/// <inheritdoc />
public ErrorNumber ReadLink(string path, out string dest)
if(offset < 0)
return ErrorNumber.InvalidArgument;
string[] pathElements = path.Split(new[]
{
dest = null;
'/'
}, StringSplitOptions.RemoveEmptyEntries);
return !_mounted ? ErrorNumber.AccessDenied : ErrorNumber.NotSupported;
}
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
/// <inheritdoc />
public ErrorNumber Stat(string path, out FileEntryInfo stat)
if(!_fileCache.TryGetValue(pathElements[0].ToUpperInvariant(), out byte[] file))
return ErrorNumber.NoSuchFile;
if(offset >= file.Length)
return ErrorNumber.EINVAL;
if(size + offset >= file.Length)
size = file.Length - offset;
buf = new byte[size];
Array.Copy(file, offset, buf, 0, size);
return ErrorNumber.NoError;
}
/// <inheritdoc />
public ErrorNumber ReadLink(string path, out string dest)
{
dest = null;
return !_mounted ? ErrorNumber.AccessDenied : ErrorNumber.NotSupported;
}
/// <inheritdoc />
public ErrorNumber Stat(string path, out FileEntryInfo stat)
{
stat = null;
if(!_mounted)
return ErrorNumber.AccessDenied;
string[] pathElements = path.Split(new[]
{
stat = null;
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(!_mounted)
return ErrorNumber.AccessDenied;
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(!string.IsNullOrEmpty(path) &&
string.Compare(path, "/", StringComparison.OrdinalIgnoreCase) != 0)
return _statCache.TryGetValue(pathElements[0].ToUpperInvariant(), out stat) ? ErrorNumber.NoError
: ErrorNumber.NoSuchFile;
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
stat = new FileEntryInfo
{
Attributes = FileAttributes.Directory,
BlockSize = XmlFsType.ClusterSize
};
if(!string.IsNullOrEmpty(path) &&
string.Compare(path, "/", StringComparison.OrdinalIgnoreCase) != 0)
return _statCache.TryGetValue(pathElements[0].ToUpperInvariant(), out stat) ? ErrorNumber.NoError
: ErrorNumber.NoSuchFile;
if(_labelCreationDate != null)
stat.CreationTime = DateHandlers.CpmToDateTime(_labelCreationDate);
stat = new FileEntryInfo
{
Attributes = FileAttributes.Directory,
BlockSize = XmlFsType.ClusterSize
};
if(_labelUpdateDate != null)
stat.StatusChangeTime = DateHandlers.CpmToDateTime(_labelUpdateDate);
if(_labelCreationDate != null)
stat.CreationTime = DateHandlers.CpmToDateTime(_labelCreationDate);
if(_labelUpdateDate != null)
stat.StatusChangeTime = DateHandlers.CpmToDateTime(_labelUpdateDate);
return ErrorNumber.NoError;
}
return ErrorNumber.NoError;
}
}

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@@ -35,336 +35,335 @@ using System.Runtime.InteropServices;
// ReSharper disable NotAccessedField.Local
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <summary>Most of the times this structure is hard wired or generated by CP/M, not stored on disk</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
class DiscParameterBlock
{
/// <summary>Most of the times this structure is hard wired or generated by CP/M, not stored on disk</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
class DiscParameterBlock
{
/// <summary>First byte of allocation bitmap</summary>
public byte al0;
/// <summary>Second byte of allocation bitmap</summary>
public byte al1;
/// <summary>Block mask</summary>
public byte blm;
/// <summary>Block shift</summary>
public byte bsh;
/// <summary>Checksum vector size</summary>
public ushort cks;
/// <summary>Directory entries - 1</summary>
public ushort drm;
/// <summary>Blocks on disk - 1</summary>
public ushort dsm;
/// <summary>Extent mask</summary>
public byte exm;
/// <summary>Reserved tracks</summary>
public ushort off;
/// <summary>Physical sector mask</summary>
public byte phm;
/// <summary>Physical sector shift</summary>
public byte psh;
/// <summary>Sectors per track</summary>
public ushort spt;
}
/// <summary>First byte of allocation bitmap</summary>
public byte al0;
/// <summary>Second byte of allocation bitmap</summary>
public byte al1;
/// <summary>Block mask</summary>
public byte blm;
/// <summary>Block shift</summary>
public byte bsh;
/// <summary>Checksum vector size</summary>
public ushort cks;
/// <summary>Directory entries - 1</summary>
public ushort drm;
/// <summary>Blocks on disk - 1</summary>
public ushort dsm;
/// <summary>Extent mask</summary>
public byte exm;
/// <summary>Reserved tracks</summary>
public ushort off;
/// <summary>Physical sector mask</summary>
public byte phm;
/// <summary>Physical sector shift</summary>
public byte psh;
/// <summary>Sectors per track</summary>
public ushort spt;
}
/// <summary>Amstrad superblock, for PCW</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct AmstradSuperBlock
{
/// <summary>Format ID. 0 single-side, 3 double-side. 1 and 2 are for CPC but they don't use the superblock</summary>
public readonly byte format;
/// <summary>Gives information about side ordering</summary>
public readonly byte sidedness;
/// <summary>Tracks per side, aka, cylinders</summary>
public readonly byte tps;
/// <summary>Sectors per track</summary>
public readonly byte spt;
/// <summary>Physical sector shift</summary>
public readonly byte psh;
/// <summary>Reserved tracks</summary>
public readonly byte off;
/// <summary>Block size shift</summary>
public readonly byte bsh;
/// <summary>How many blocks does the directory take</summary>
public readonly byte dirBlocks;
/// <summary>GAP#3 length (intersector)</summary>
public readonly byte gapLen;
/// <summary>GAP#4 length (end-of-track)</summary>
public readonly byte formatGap;
/// <summary>Must be 0</summary>
public readonly byte zero1;
/// <summary>Must be 0</summary>
public readonly byte zero2;
/// <summary>Must be 0</summary>
public readonly byte zero3;
/// <summary>Must be 0</summary>
public readonly byte zero4;
/// <summary>Must be 0</summary>
public readonly byte zero5;
/// <summary>Indicates machine the boot code following the superblock is designed to boot</summary>
public readonly byte fiddle;
}
/// <summary>Amstrad superblock, for PCW</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct AmstradSuperBlock
{
/// <summary>Format ID. 0 single-side, 3 double-side. 1 and 2 are for CPC but they don't use the superblock</summary>
public readonly byte format;
/// <summary>Gives information about side ordering</summary>
public readonly byte sidedness;
/// <summary>Tracks per side, aka, cylinders</summary>
public readonly byte tps;
/// <summary>Sectors per track</summary>
public readonly byte spt;
/// <summary>Physical sector shift</summary>
public readonly byte psh;
/// <summary>Reserved tracks</summary>
public readonly byte off;
/// <summary>Block size shift</summary>
public readonly byte bsh;
/// <summary>How many blocks does the directory take</summary>
public readonly byte dirBlocks;
/// <summary>GAP#3 length (intersector)</summary>
public readonly byte gapLen;
/// <summary>GAP#4 length (end-of-track)</summary>
public readonly byte formatGap;
/// <summary>Must be 0</summary>
public readonly byte zero1;
/// <summary>Must be 0</summary>
public readonly byte zero2;
/// <summary>Must be 0</summary>
public readonly byte zero3;
/// <summary>Must be 0</summary>
public readonly byte zero4;
/// <summary>Must be 0</summary>
public readonly byte zero5;
/// <summary>Indicates machine the boot code following the superblock is designed to boot</summary>
public readonly byte fiddle;
}
/// <summary>Superblock found on CP/M-86 hard disk volumes</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct HardDiskSuperBlock
{
/// <summary>Value so the sum of all the superblock's sector bytes taken as 16-bit values gives 0</summary>
public readonly ushort checksum;
/// <summary>Copyright string</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x1F)]
public readonly byte[] copyright;
/// <summary>First cylinder of disk where this volume resides</summary>
public readonly ushort firstCylinder;
/// <summary>How many cylinders does this volume span</summary>
public readonly ushort cylinders;
/// <summary>Heads on hard disk</summary>
public readonly byte heads;
/// <summary>Sectors per track</summary>
public readonly byte sectorsPerTrack;
/// <summary>Flags, only use by CCP/M where bit 0 equals verify on write</summary>
public readonly byte flags;
/// <summary>Sector size / 128</summary>
public readonly byte recordsPerSector;
/// <summary>
/// <see cref="DiscParameterBlock.spt" />
/// </summary>
public readonly ushort spt;
/// <summary>
/// <see cref="DiscParameterBlock.bsh" />
/// </summary>
public readonly byte bsh;
/// <summary>
/// <see cref="DiscParameterBlock.blm" />
/// </summary>
public readonly byte blm;
/// <summary>
/// <see cref="DiscParameterBlock.exm" />
/// </summary>
public readonly byte exm;
/// <summary>
/// <see cref="DiscParameterBlock.dsm" />
/// </summary>
public readonly ushort dsm;
/// <summary>
/// <see cref="DiscParameterBlock.drm" />
/// </summary>
public readonly ushort drm;
/// <summary>
/// <see cref="DiscParameterBlock.al0" />
/// </summary>
public readonly ushort al0;
/// <summary>
/// <see cref="DiscParameterBlock.al1" />
/// </summary>
public readonly ushort al1;
/// <summary>
/// <see cref="DiscParameterBlock.cks" />
/// </summary>
public readonly ushort cks;
/// <summary>
/// <see cref="DiscParameterBlock.off" />
/// </summary>
public readonly ushort off;
/// <summary>Must be zero</summary>
public readonly ushort zero1;
/// <summary>Must be zero</summary>
public readonly ushort zero2;
/// <summary>Must be zero</summary>
public readonly ushort zero3;
/// <summary>Must be zero</summary>
public readonly ushort zero4;
/// <summary>How many 128 bytes are in a block</summary>
public readonly ushort recordsPerBlock;
/// <summary>Maximum number of bad blocks in the bad block list</summary>
public readonly ushort badBlockWordsMax;
/// <summary>Used number of bad blocks in the bad block list</summary>
public readonly ushort badBlockWords;
/// <summary>First block after the blocks reserved for bad block substitution</summary>
public readonly ushort firstSub;
}
/// <summary>Superblock found on CP/M-86 hard disk volumes</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct HardDiskSuperBlock
{
/// <summary>Value so the sum of all the superblock's sector bytes taken as 16-bit values gives 0</summary>
public readonly ushort checksum;
/// <summary>Copyright string</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x1F)]
public readonly byte[] copyright;
/// <summary>First cylinder of disk where this volume resides</summary>
public readonly ushort firstCylinder;
/// <summary>How many cylinders does this volume span</summary>
public readonly ushort cylinders;
/// <summary>Heads on hard disk</summary>
public readonly byte heads;
/// <summary>Sectors per track</summary>
public readonly byte sectorsPerTrack;
/// <summary>Flags, only use by CCP/M where bit 0 equals verify on write</summary>
public readonly byte flags;
/// <summary>Sector size / 128</summary>
public readonly byte recordsPerSector;
/// <summary>
/// <see cref="DiscParameterBlock.spt" />
/// </summary>
public readonly ushort spt;
/// <summary>
/// <see cref="DiscParameterBlock.bsh" />
/// </summary>
public readonly byte bsh;
/// <summary>
/// <see cref="DiscParameterBlock.blm" />
/// </summary>
public readonly byte blm;
/// <summary>
/// <see cref="DiscParameterBlock.exm" />
/// </summary>
public readonly byte exm;
/// <summary>
/// <see cref="DiscParameterBlock.dsm" />
/// </summary>
public readonly ushort dsm;
/// <summary>
/// <see cref="DiscParameterBlock.drm" />
/// </summary>
public readonly ushort drm;
/// <summary>
/// <see cref="DiscParameterBlock.al0" />
/// </summary>
public readonly ushort al0;
/// <summary>
/// <see cref="DiscParameterBlock.al1" />
/// </summary>
public readonly ushort al1;
/// <summary>
/// <see cref="DiscParameterBlock.cks" />
/// </summary>
public readonly ushort cks;
/// <summary>
/// <see cref="DiscParameterBlock.off" />
/// </summary>
public readonly ushort off;
/// <summary>Must be zero</summary>
public readonly ushort zero1;
/// <summary>Must be zero</summary>
public readonly ushort zero2;
/// <summary>Must be zero</summary>
public readonly ushort zero3;
/// <summary>Must be zero</summary>
public readonly ushort zero4;
/// <summary>How many 128 bytes are in a block</summary>
public readonly ushort recordsPerBlock;
/// <summary>Maximum number of bad blocks in the bad block list</summary>
public readonly ushort badBlockWordsMax;
/// <summary>Used number of bad blocks in the bad block list</summary>
public readonly ushort badBlockWords;
/// <summary>First block after the blocks reserved for bad block substitution</summary>
public readonly ushort firstSub;
}
/// <summary>Volume label entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct LabelEntry
{
/// <summary>Must be 0x20</summary>
public readonly byte signature;
/// <summary>Label in ASCII</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 11)]
public readonly byte[] label;
/// <summary>
/// Label flags. Bit 0 = label exists, bit 4 = creation timestamp, bit 5 = modification timestamp, bit 6 = access
/// timestamp, bit 7 = password enabled
/// </summary>
public readonly byte flags;
/// <summary>Password decoder byte</summary>
public readonly byte passwordDecoder;
/// <summary>Must be 0</summary>
public readonly ushort reserved;
/// <summary>Password XOR'ed with <see cref="passwordDecoder" /></summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] password;
/// <summary>Label creation time</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] ctime;
/// <summary>Label modification time</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] mtime;
}
/// <summary>Volume label entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct LabelEntry
{
/// <summary>Must be 0x20</summary>
public readonly byte signature;
/// <summary>Label in ASCII</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 11)]
public readonly byte[] label;
/// <summary>
/// Label flags. Bit 0 = label exists, bit 4 = creation timestamp, bit 5 = modification timestamp, bit 6 = access
/// timestamp, bit 7 = password enabled
/// </summary>
public readonly byte flags;
/// <summary>Password decoder byte</summary>
public readonly byte passwordDecoder;
/// <summary>Must be 0</summary>
public readonly ushort reserved;
/// <summary>Password XOR'ed with <see cref="passwordDecoder" /></summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] password;
/// <summary>Label creation time</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] ctime;
/// <summary>Label modification time</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] mtime;
}
/// <summary>CP/M 3 timestamp entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DateEntry
{
/// <summary>Must be 0x21</summary>
public readonly byte signature;
/// <summary>File 1 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date1;
/// <summary>File 1 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date2;
/// <summary>File 1 password mode</summary>
public readonly byte mode1;
public readonly byte zero1;
/// <summary>File 2 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date3;
/// <summary>File 2 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date4;
/// <summary>File 2 password mode</summary>
public readonly byte mode2;
public readonly byte zero2;
/// <summary>File 3 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date5;
/// <summary>File 3 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date6;
/// <summary>File 3 password mode</summary>
public readonly byte mode3;
public readonly ushort zero3;
}
/// <summary>CP/M 3 timestamp entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DateEntry
{
/// <summary>Must be 0x21</summary>
public readonly byte signature;
/// <summary>File 1 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date1;
/// <summary>File 1 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date2;
/// <summary>File 1 password mode</summary>
public readonly byte mode1;
public readonly byte zero1;
/// <summary>File 2 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date3;
/// <summary>File 2 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date4;
/// <summary>File 2 password mode</summary>
public readonly byte mode2;
public readonly byte zero2;
/// <summary>File 3 create/access timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date5;
/// <summary>File 3 modification timestamp</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] date6;
/// <summary>File 3 password mode</summary>
public readonly byte mode3;
public readonly ushort zero3;
}
/// <summary>Password entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct PasswordEntry
{
/// <summary>16 + user number</summary>
public readonly byte userNumber;
/// <summary>Filename</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Password mode. Bit 7 = required for read, bit 6 = required for write, bit 5 = required for delete</summary>
public readonly byte mode;
/// <summary>Password decoder byte</summary>
public readonly byte passwordDecoder;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] reserved;
/// <summary>Password XOR'ed with <see cref="passwordDecoder" /></summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] password;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] reserved2;
}
/// <summary>Password entry</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct PasswordEntry
{
/// <summary>16 + user number</summary>
public readonly byte userNumber;
/// <summary>Filename</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Password mode. Bit 7 = required for read, bit 6 = required for write, bit 5 = required for delete</summary>
public readonly byte mode;
/// <summary>Password decoder byte</summary>
public readonly byte passwordDecoder;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] reserved;
/// <summary>Password XOR'ed with <see cref="passwordDecoder" /></summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] password;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] reserved2;
}
/// <summary>Timestamp for Z80DOS or DOS+</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct TrdPartyDateEntry
{
/// <summary>Must be 0x21</summary>
public readonly byte signature;
public readonly byte zero;
/// <summary>Creation year for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create1;
/// <summary>Modification time for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify1;
/// <summary>Access time for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access1;
/// <summary>Creation year for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create2;
/// <summary>Modification time for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify2;
/// <summary>Access time for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access2;
/// <summary>Creation year for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create3;
/// <summary>Modification time for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify3;
/// <summary>Access time for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access3;
}
/// <summary>Timestamp for Z80DOS or DOS+</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct TrdPartyDateEntry
{
/// <summary>Must be 0x21</summary>
public readonly byte signature;
public readonly byte zero;
/// <summary>Creation year for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create1;
/// <summary>Modification time for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify1;
/// <summary>Access time for file 1</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access1;
/// <summary>Creation year for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create2;
/// <summary>Modification time for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify2;
/// <summary>Access time for file 2</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access2;
/// <summary>Creation year for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public readonly byte[] create3;
/// <summary>Modification time for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] modify3;
/// <summary>Access time for file 3</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public readonly byte[] access3;
}
/// <summary>Directory entry for &lt;256 allocation blocks</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DirectoryEntry
{
/// <summary>User number. Bit 7 set in CP/M 1 means hidden</summary>
public readonly byte statusUser;
/// <summary>Filename and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Low byte of extent number</summary>
public readonly byte extentCounter;
/// <summary>
/// Last record bytes. In some implementations it means how many bytes are used in the last record, in others how
/// many bytes are free. It always refer to 128 byte records even if blocks are way bigger, so it's mostly useless.
/// </summary>
public readonly byte lastRecordBytes;
/// <summary>High byte of extent number</summary>
public readonly byte extentCounterHigh;
/// <summary>How many records are used in this entry. 0x80 if all are used.</summary>
public readonly byte records;
/// <summary>Allocation blocks</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public readonly byte[] allocations;
}
/// <summary>Directory entry for &lt;256 allocation blocks</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DirectoryEntry
{
/// <summary>User number. Bit 7 set in CP/M 1 means hidden</summary>
public readonly byte statusUser;
/// <summary>Filename and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Low byte of extent number</summary>
public readonly byte extentCounter;
/// <summary>
/// Last record bytes. In some implementations it means how many bytes are used in the last record, in others how
/// many bytes are free. It always refer to 128 byte records even if blocks are way bigger, so it's mostly useless.
/// </summary>
public readonly byte lastRecordBytes;
/// <summary>High byte of extent number</summary>
public readonly byte extentCounterHigh;
/// <summary>How many records are used in this entry. 0x80 if all are used.</summary>
public readonly byte records;
/// <summary>Allocation blocks</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public readonly byte[] allocations;
}
/// <summary>Directory entry for &gt;256 allocation blocks</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DirectoryEntry16
{
/// <summary>User number. Bit 7 set in CP/M 1 means hidden</summary>
public readonly byte statusUser;
/// <summary>Filename and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Low byte of extent number</summary>
public readonly byte extentCounter;
/// <summary>
/// Last record bytes. In some implementations it means how many bytes are used in the last record, in others how
/// many bytes are free. It always refer to 128 byte records even if blocks are way bigger, so it's mostly useless.
/// </summary>
public readonly byte lastRecordBytes;
/// <summary>High byte of extent number</summary>
public readonly byte extentCounterHigh;
/// <summary>How many records are used in this entry. 0x80 if all are used.</summary>
public readonly byte records;
/// <summary>Allocation blocks</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly ushort[] allocations;
}
/// <summary>Directory entry for &gt;256 allocation blocks</summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
readonly struct DirectoryEntry16
{
/// <summary>User number. Bit 7 set in CP/M 1 means hidden</summary>
public readonly byte statusUser;
/// <summary>Filename and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly byte[] filename;
/// <summary>Extension and bit 7 as flags</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public readonly byte[] extension;
/// <summary>Low byte of extent number</summary>
public readonly byte extentCounter;
/// <summary>
/// Last record bytes. In some implementations it means how many bytes are used in the last record, in others how
/// many bytes are free. It always refer to 128 byte records even if blocks are way bigger, so it's mostly useless.
/// </summary>
public readonly byte lastRecordBytes;
/// <summary>High byte of extent number</summary>
public readonly byte extentCounterHigh;
/// <summary>How many records are used in this entry. 0x80 if all are used.</summary>
public readonly byte records;
/// <summary>Allocation blocks</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public readonly ushort[] allocations;
}
}

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@@ -34,66 +34,65 @@ using System;
using System.Collections.Generic;
using Aaru.CommonTypes.Enums;
namespace Aaru.Filesystems
namespace Aaru.Filesystems;
public sealed partial class CPM
{
public sealed partial class CPM
/// <inheritdoc />
public ErrorNumber GetXattr(string path, string xattr, ref byte[] buf)
{
/// <inheritdoc />
public ErrorNumber GetXattr(string path, string xattr, ref byte[] buf)
if(!_mounted)
return ErrorNumber.AccessDenied;
string[] pathElements = path.Split(new[]
{
if(!_mounted)
return ErrorNumber.AccessDenied;
'/'
}, StringSplitOptions.RemoveEmptyEntries);
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
if(!_fileCache.ContainsKey(pathElements[0].ToUpperInvariant()))
return ErrorNumber.NoSuchFile;
if(!_fileCache.ContainsKey(pathElements[0].ToUpperInvariant()))
return ErrorNumber.NoSuchFile;
if(string.Compare(xattr, "com.caldera.cpm.password", StringComparison.InvariantCulture) == 0)
if(!_passwordCache.TryGetValue(pathElements[0].ToUpperInvariant(), out buf))
return ErrorNumber.NoError;
if(string.Compare(xattr, "com.caldera.cpm.password", StringComparison.InvariantCulture) == 0)
if(!_passwordCache.TryGetValue(pathElements[0].ToUpperInvariant(), out buf))
return ErrorNumber.NoError;
if(string.Compare(xattr, "com.caldera.cpm.password.text", StringComparison.InvariantCulture) != 0)
return ErrorNumber.NoSuchExtendedAttribute;
if(string.Compare(xattr, "com.caldera.cpm.password.text", StringComparison.InvariantCulture) != 0)
return ErrorNumber.NoSuchExtendedAttribute;
return !_passwordCache.TryGetValue(pathElements[0].ToUpperInvariant(), out buf) ? ErrorNumber.NoError
: ErrorNumber.NoSuchExtendedAttribute;
}
return !_passwordCache.TryGetValue(pathElements[0].ToUpperInvariant(), out buf) ? ErrorNumber.NoError
: ErrorNumber.NoSuchExtendedAttribute;
}
/// <inheritdoc />
public ErrorNumber ListXAttr(string path, out List<string> xattrs)
{
xattrs = null;
/// <inheritdoc />
public ErrorNumber ListXAttr(string path, out List<string> xattrs)
if(!_mounted)
return ErrorNumber.AccessDenied;
string[] pathElements = path.Split(new[]
{
xattrs = null;
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(!_mounted)
return ErrorNumber.AccessDenied;
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
string[] pathElements = path.Split(new[]
{
'/'
}, StringSplitOptions.RemoveEmptyEntries);
if(!_fileCache.ContainsKey(pathElements[0].ToUpperInvariant()))
return ErrorNumber.NoSuchFile;
if(pathElements.Length != 1)
return ErrorNumber.NotSupported;
xattrs = new List<string>();
if(!_fileCache.ContainsKey(pathElements[0].ToUpperInvariant()))
return ErrorNumber.NoSuchFile;
if(_passwordCache.ContainsKey(pathElements[0].ToUpperInvariant()))
xattrs.Add("com.caldera.cpm.password");
xattrs = new List<string>();
if(_decodedPasswordCache.ContainsKey(pathElements[0].ToUpperInvariant()))
xattrs.Add("com.caldera.cpm.password.text");
if(_passwordCache.ContainsKey(pathElements[0].ToUpperInvariant()))
xattrs.Add("com.caldera.cpm.password");
if(_decodedPasswordCache.ContainsKey(pathElements[0].ToUpperInvariant()))
xattrs.Add("com.caldera.cpm.password.text");
return ErrorNumber.NoError;
}
return ErrorNumber.NoError;
}
}