private static HeaderEntry[] ReadFilesInfo(StreamsInfo info, HeaderBuffer headerBytes)
{
var entries = headerBytes.CreateArray <HeaderEntry>();
int numEmptyStreams = 0;
while (true)
{
var type = headerBytes.ReadProperty();
if (type == HeaderProperty.kEnd)
{
break;
}
var size = (int)headerBytes.ReadEncodedInt64();
switch (type)
{
case HeaderProperty.kName:
{
if (headerBytes.ReadByte() != 0)
{
throw new InvalidFormatException("Cannot be external");
}
entries.ForEach(f => f.Name = headerBytes.ReadName());
break;
}
case HeaderProperty.kEmptyStream:
{
info.EmptyStreamFlags = headerBytes.ReadBoolFlags(entries.Length);
numEmptyStreams = info.EmptyStreamFlags.Where(x => x).Count();
break;
}
case HeaderProperty.kEmptyFile: //just read bytes
case HeaderProperty.kAnti:
{
info.EmptyFileFlags = headerBytes.ReadBoolFlags(numEmptyStreams);
break;
}
default:
{
headerBytes.ReadBytes(size);
break;
}
}
}
int emptyFileIndex = 0;
int sizeIndex = 0;
for (int i = 0; i < entries.Length; i++)
{
HeaderEntry file = entries[i];
file.IsAnti = false;
if (info.EmptyStreamFlags == null)
{
file.HasStream = true;
}
else
{
file.HasStream = !info.EmptyStreamFlags[i];
}
if (file.HasStream)
{
file.IsDirectory = false;
file.Size = info.UnpackedStreams[sizeIndex].UnpackedSize;
file.FileCRC = info.UnpackedStreams[sizeIndex].Digest;
sizeIndex++;
}
else
{
if (info.EmptyFileFlags == null)
{
file.IsDirectory = true;
}
else
{
file.IsDirectory = !info.EmptyFileFlags[emptyFileIndex];
}
emptyFileIndex++;
file.Size = 0;
}
}
return(entries);
}
internal SevenZipFilePart(SevenZipHeaderFactory factory, int index, HeaderEntry fileEntry, Stream stream)
{
Header = fileEntry;
this.BaseStream = stream;
}
