private static VolHeader BuildHeader(string directory)
{
VolHeader header = new VolHeader();
MemoryStream stringStream = new MemoryStream();
BinaryWriter nameString = new BinaryWriter(stringStream);
VolHeaderEntry root = new VolHeaderEntry();
root.entryOffset = 0x14;
root.parent = null;
AppendVolHeaderFileName(nameString, ".", out root.nameOffset);
uint runningFileDataOffset = 0;
uint dirEntryIter = 0x14;
uint fileInfoSize = 0;
root.dataOffset = 0x14;
root.entryOffset = 0x14;
root.children = DirectoryToHeaderEntries(directory, nameString, ref dirEntryIter, ref runningFileDataOffset, ref fileInfoSize);
nameString.Flush();
#if DEBUG
Console.WriteLine(
"Sizes: fileInfoOffset = {0:x}, fileInfoSize = {1:x}, runningFDO = {2:x}, nameString Length {3:x}",
dirEntryIter,
fileInfoSize,
runningFileDataOffset,
stringStream.Position
);
#endif
header.nameString = stringStream.ToArray();
header.fileInfoOffset = dirEntryIter;
header.volEntries = root;
header.nameOffset = header.fileInfoOffset + fileInfoSize;
header.headerSize = header.nameOffset + (uint)header.nameString.Length;
return(header);
}
private static void WriteHeader(BinaryWriter volWriter, VolHeader volHead)
{
MemoryStream fileInfo = new MemoryStream();
BinaryWriter fileInfoWriter = new BinaryWriter(fileInfo);
WriteDirectory(
volWriter,
fileInfoWriter,
volHead.fileInfoOffset,
volHead.nameOffset,
(uint)((volHead.headerSize + 0x7FF) & ~0x7FF),
volHead.volEntries
);
volWriter.Flush();
fileInfoWriter.Flush();
fileInfoWriter.BaseStream.Position = 0;
byte[] buffer = new byte[8192];
StreamUtils.Copy(fileInfoWriter.BaseStream, volWriter.BaseStream, buffer);
}