Example #1
0
        private U8Directory ReadFileTable(uint nodeOffset)
        {
            U8Directory root = new U8Directory(null, ROOT_DIR);

            filestream.Position = nodeOffset;
            U8Node rootNode = new U8Node()
            {
                type       = filestream.ReadUInt8(),
                nameOffset = filestream.ReadUInt24BE(),
                dataOffset = filestream.ReadUInt32BE(),
                size       = filestream.ReadUInt32BE()
            };

            if (rootNode.type != DIR)
            {
                throw new InvalidDataException("Root node of U8 archive was not a directory");
            }

            var stringTableOffset = nodeOffset + 12 * rootNode.size;
            var lastNodes         = new Stack <uint>();

            lastNodes.Push(rootNode.size);
            U8Directory currentDir = root;

            for (var i = 1; i < rootNode.size; i++)
            {
                if (i == lastNodes.Peek())
                {
                    lastNodes.Pop();
                    currentDir = currentDir.Parent as U8Directory;
                }

                var node = new U8Node()
                {
                    type       = filestream.ReadUInt8(),
                    nameOffset = filestream.ReadUInt24BE(),
                    dataOffset = filestream.ReadUInt32BE(),
                    size       = filestream.ReadUInt32BE()
                };
                var pos = filestream.Position;
                filestream.Position = stringTableOffset + node.nameOffset;
                var name = filestream.ReadASCIINullTerminated();
                filestream.Position = pos;
                if (node.type == DIR)
                {
                    var newDir = new U8Directory(currentDir, name);
                    currentDir.AddDir(newDir);
                    currentDir = newDir;
                    lastNodes.Push(node.size);
                }
                else
                {
                    currentDir.AddFile(new OffsetFile(name, currentDir, filestream, node.dataOffset, node.size));
                }
            }
            return(root);
        }
Example #2
0
        /// <summary>
        /// Open the .far archive which is the given file.
        /// </summary>
        /// <param name="path"></param>
        private U8Package(IFile f)
        {
            FileName   = f.Name;
            filestream = f.GetStream();
            if (filestream.ReadUInt32BE() != MAGIC)
            {
                throw new InvalidDataException("Package is not a U8 package.");
            }
            uint rootNode   = filestream.ReadUInt32BE();
            uint dataOffset = filestream.ReadUInt32BE();

            root = ReadFileTable(rootNode);
        }
Example #3
0
 public U8Directory(U8Directory parent, string name) : base(parent, name)
 {
 }