/// <summary>
/// Adds inodes for each dir.
/// </summary>
void addDirInodes()
{
inodes.Add(root.ino);
foreach (var dir in allDirs)
{
var ino = MakeInode(
Mode: InodeMode.dir | InodeMode.rx_only,
Number: (uint)inodes.Count,
Blocks: 1,
Size: 65536,
Flags: InodeFlags.@readonly,
Nlink: 2 // 1 link each for its own dirent and its . dirent
);
dir.ino = ino;
dir.Dirents.Add(new PfsDirent {
Name = ".", InodeNumber = ino.Number, Type = DirentType.Dot
});
dir.Dirents.Add(new PfsDirent {
Name = "..", InodeNumber = dir.Parent.ino.Number, Type = DirentType.DotDot
});
var dirent = new PfsDirent {
Name = dir.name, InodeNumber = (uint)inodes.Count, Type = DirentType.Directory
};
dir.Parent.Dirents.Add(dirent);
dir.Parent.ino.Nlink++;
inodes.Add(ino);
}
}
public static PfsDirent ReadFromStream(Stream s)
{
var pos = s.Position;
var d = new PfsDirent
{
InodeNumber = s.ReadUInt32LE(),
Type = (DirentType)s.ReadInt32LE(),
NameLength = s.ReadInt32LE(),
EntSize = s.ReadInt32LE(),
};
d.name = s.ReadASCIINullTerminated(d.NameLength);
s.Position = pos + d.EntSize;
return(d);
}
/// <summary>
/// Adds inodes for each file.
/// </summary>
void addFileInodes()
{
foreach (var file in allFiles.OrderBy(x => x.FullPath()))
{
var ino = MakeInode(
Mode: InodeMode.file | InodeMode.rx_only,
Size: file.Size,
SizeCompressed: file.CompressedSize,
Number: (uint)inodes.Count,
Blocks: (uint)CeilDiv(file.Size, hdr.BlockSize),
Flags: InodeFlags.@readonly | (file.Compress ? InodeFlags.compressed : 0)
);
if (properties.Sign) // HACK: Outer PFS images don't use readonly?
{
ino.Flags &= ~InodeFlags.@readonly;
}
file.ino = ino;
var dirent = new PfsDirent {
Name = file.name, Type = DirentType.File, InodeNumber = (uint)inodes.Count
};
file.Parent.Dirents.Add(dirent);
inodes.Add(ino);
}
}
