private void ReadSecurityDescriptors()
{
LittleEndianDataReader reader = new LittleEndianDataReader(_metaDataStream);
long startPos = reader.Position;
uint totalLength = reader.ReadUInt32();
uint numEntries = reader.ReadUInt32();
ulong[] sdLengths = new ulong[numEntries];
for (uint i = 0; i < numEntries; ++i)
{
sdLengths[i] = reader.ReadUInt64();
}
_securityDescriptors = new List <RawSecurityDescriptor>((int)numEntries);
for (uint i = 0; i < numEntries; ++i)
{
_securityDescriptors.Add(new RawSecurityDescriptor(reader.ReadBytes((int)sdLengths[i]), 0));
}
if (reader.Position < startPos + totalLength)
{
reader.Skip((int)(startPos + totalLength - reader.Position));
}
_rootDirPos = Utilities.RoundUp(startPos + totalLength, 8);
}
private void ReadMetaData(Stream stream)
{
LittleEndianDataReader reader = new LittleEndianDataReader(stream);
ReadSecurityDescriptors(reader);
ReadDirectories(reader);
}
private void ReadDirectories(LittleEndianDataReader reader)
{
_directories = new Dictionary <long, List <DirectoryEntry> >();
long dirId = 0;
while (reader.Position < reader.Length)
{
List <DirectoryEntry> dir = new List <DirectoryEntry>();
DirectoryEntry entry = DirectoryEntry.ReadFrom(reader);
while (entry != null)
{
dir.Add(entry);
entry = DirectoryEntry.ReadFrom(reader);
}
_directories.Add(dirId, dir);
dirId = reader.Position;
}
}
private List <DirectoryEntry> GetDirectory(long id)
{
List <DirectoryEntry> dir = _dirCache[id];
if (dir == null)
{
_metaDataStream.Position = (id == 0) ? _rootDirPos : id;
LittleEndianDataReader reader = new LittleEndianDataReader(_metaDataStream);
dir = new List <DirectoryEntry>();
DirectoryEntry entry = DirectoryEntry.ReadFrom(reader);
while (entry != null)
{
dir.Add(entry);
entry = DirectoryEntry.ReadFrom(reader);
}
_dirCache[id] = dir;
}
return(dir);
}
private void ReadSecurityDescriptors(LittleEndianDataReader reader)
{
long startPos = reader.Position;
uint totalLength = reader.ReadUInt32();
uint numEntries = reader.ReadUInt32();
ulong[] sdLengths = new ulong[numEntries];
for (uint i = 0; i < numEntries; ++i)
{
sdLengths[i] = reader.ReadUInt64();
}
_securityDescriptors = new List<RawSecurityDescriptor>((int)numEntries);
for (uint i = 0; i < numEntries; ++i)
{
_securityDescriptors.Add(new RawSecurityDescriptor(reader.ReadBytes((int)sdLengths[i]), 0));
}
if (reader.Position < startPos + totalLength)
{
reader.Skip((int)(startPos + totalLength - reader.Position));
}
}
private void ReadDirectories(LittleEndianDataReader reader)
{
_directories = new Dictionary<long, List<DirectoryEntry>>();
long dirId = 0;
while (reader.Position < reader.Length)
{
List<DirectoryEntry> dir = new List<DirectoryEntry>();
DirectoryEntry entry = DirectoryEntry.ReadFrom(reader);
while (entry != null)
{
dir.Add(entry);
entry = DirectoryEntry.ReadFrom(reader);
}
_directories.Add(dirId, dir);
dirId = reader.Position;
}
}
private void ReadMetaData(Stream stream)
{
LittleEndianDataReader reader = new LittleEndianDataReader(stream);
ReadSecurityDescriptors(reader);
ReadDirectories(reader);
}
private List<DirectoryEntry> GetDirectory(long id)
{
List<DirectoryEntry> dir = _dirCache[id];
if (dir == null)
{
_metaDataStream.Position = (id == 0) ? _rootDirPos : id;
LittleEndianDataReader reader = new LittleEndianDataReader(_metaDataStream);
dir = new List<DirectoryEntry>();
DirectoryEntry entry = DirectoryEntry.ReadFrom(reader);
while (entry != null)
{
dir.Add(entry);
entry = DirectoryEntry.ReadFrom(reader);
}
_dirCache[id] = dir;
}
return dir;
}
