public FileFAT(FileSystemFAT fileSystem, FolderFAT.DirectoryEntry entry, string path) {
FileSystem = fileSystem;
Name = PathUtils.MakeFileNameValid(entry.FileName);
Path = PathUtils.Combine(path, Name);
_length = entry.Length;
Attributes = new FileAttributesFAT(entry);
FirstCluster = entry.ClusterNum;
Deleted = Attributes.Deleted;
}
public FileFAT(FileSystemFAT fileSystem, long firstCluster) {
FileSystem = fileSystem;
FirstCluster = firstCluster;
Name = Util.GetRandomString(8);
Path = PathUtils.Combine(FileSystem.Store.DeviceID, "?", Name);
long currentCluster = FirstCluster;
_length = 0;
while (currentCluster >= 0) {
// Note: This won't correctly calculate the length of a deleted file.
currentCluster = FileSystem.GetNextCluster(currentCluster);
_length += FileSystem.BytesPerCluster;
}
Attributes = new FileAttributesFAT();
Deleted = true;
}
public FolderFAT(FileSystemFAT fileSystem, long offset, long cluster) {
_root = true;
Offset = offset;
FileSystem = fileSystem;
FirstCluster = cluster;
Name = GetVolumeName();
Path = FileSystem.Store.DeviceID;
Loaded = false;
Attributes = new FileAttributesFAT();
Deleted = Attributes.Deleted;
}
public FolderFAT(FileSystemFAT fileSystem, DirectoryEntry entry, string path) {
_root = false;
FileSystem = fileSystem;
Offset = entry.Offset;
FirstCluster = entry.ClusterNum;
Name = PathUtils.MakeFileNameValid(entry.FileName);
Path = PathUtils.Combine(path, Name);
Loaded = false;
Attributes = new FileAttributesFAT(entry);
Deleted = Attributes.Deleted;
}
public DirectoryEntry(FileSystemFAT fileSystem, long offset) {
byte[] data = fileSystem.Store.GetBytes((ulong)offset, DIR_ENTRY_SIZE);
DIR_Name = ASCIIEncoding.ASCII.GetString(data, 0, 11);
DIR_Attr = (FATDirectoryAttributes)data[11];
DIR_NTRes = data[12];
DIR_CrtTimeTenth = data[13];
DIR_CrtTime = BitConverter.ToUInt16(data, 14);
DIR_CrtDate = BitConverter.ToUInt16(data, 16);
DIR_LstAccDate = BitConverter.ToUInt16(data, 18);
DIR_FstClusHI = BitConverter.ToUInt16(data, 20);
DIR_WrtTime = BitConverter.ToUInt16(data, 22);
DIR_WrtDate = BitConverter.ToUInt16(data, 24);
DIR_FstClusLO = BitConverter.ToUInt16(data, 26);
DIR_FileSize = BitConverter.ToUInt32(data, 28);
Free = data[0] == 0x0 || data[0] == 0x05 || data[0] == 0xE5;
Last = data[0] == 0x0;
string filename = DIR_Name.Substring(0, 8).Trim().ToLower();
string ext = DIR_Name.Substring(8).Trim().ToLower();
FileName = filename;
if (ext != "") {
if ((Attributes & FATDirectoryAttributes.ATTR_VOLUME_ID) == 0) {
FileName += ".";
}
FileName += ext;
}
Offset = fileSystem.GetDiskOffsetOfFATCluster(ClusterNum);
if (LongNameEntry) {
LongName = string.Concat(Encoding.Unicode.GetString(data, 1, 10),
Encoding.Unicode.GetString(data, 14, 12),
Encoding.Unicode.GetString(data, 28, 4));
}
}
