/// <summary>
/// Populates directory object with data from given sector of directory
/// </summary>
/// <param name="sectorData">The server to process</param>
/// <param name="directory">The directory object to populate</param>
/// <returns></returns>
private void ReadEntries(byte[] sectorData, CompoundFileDirectory directory)
{
// each directory entry has size of 128 byte
var entriesPerSector = sectorSize / 128;
for (var entryIdx = 0; entryIdx < entriesPerSector; entryIdx++)
{
var entryOffset = entryIdx * 128;
directory.AddEntry(ReadDirEntry(sectorData, entryOffset, directory.EntriesCount));
}
}
private CompoundFileDirectory ReadDirectoryImpl(bool exceptionOnError = true)
{
var result = new CompoundFileDirectory();
result.IsComplete = true;
var currentSector = firstDirectorySector;
while (currentSector != endOfSectorChain)
{
var sectorData = TryReadSector(currentSector);
if (sectorData != null)
{
ReadEntries(sectorData, result);
}
else
{
isBroken = true;
result.IsComplete = false;
if (exceptionOnError)
{
throw new InvalidOperationException(string.Format("Directory sector {0} can not be read.", currentSector));
}
}
try
{
currentSector = NextSectorInFatChain(currentSector);
}
catch (Exception)
{
isBroken = true;
result.IsComplete = false;
if (exceptionOnError)
{
throw;
}
currentSector = endOfSectorChain;
}
}
return(result);
}