public static bool TryParse(byte[] entry, out HlsDosDirEntry hdde)
{
try
{
hdde = new HlsDosDirEntry(
entry,
Encoding.ASCII.GetString(entry).Substring(0, Encoding.ASCII.GetString(entry).IndexOf((char)0)),
SwapEndianness32Bit(BitConverter.ToUInt32(entry, 32)),
SwapEndianness32Bit(BitConverter.ToUInt32(entry, 36)),
SwapEndianness32Bit(BitConverter.ToUInt32(entry, 40)),
SwapEndianness16Bit(BitConverter.ToUInt16(entry, 44)));
return(true);
}
catch
{
hdde = null;
return(false);
}
}
private string _getDirectory()
{
/* The directory is contained in the first 10 sectors
* starting at byte 42 with an entry siz eof 46 bytes */
var bytDir = _adfFile.GetSectors(0, 10);
var intStartOfDirectory = 42;
var intEntrySize = 46;
StringBuilder sbText = new StringBuilder();
//read directory
int idx = intStartOfDirectory; //first directory entry
while (bytDir[idx] != 0)
{
//get entry
byte[] bytEntry = new byte[intEntrySize];
Buffer.BlockCopy(bytDir, idx, bytEntry, 0, intEntrySize);
if (HlsDosDirEntry.TryParse(bytEntry, out var hdde))
{
//output to trace
Trace.WriteLine(hdde.GetHexLine());
//collect dir entries
sbText.Append(hdde.GetTextLine());
sbText.Append(Environment.NewLine);
}
//goto next entry
idx += intEntrySize;
}
//output to trace
Trace.WriteLine(sbText.ToString());
return(sbText.ToString());
}
