lfs
    attributes
      mode
        "file"
        "directory"
        "link"
        "socket"
        "named pipe"
        "char device"
        "block device"
        "other"
      dev
      ino
      nlink
      uid
      gid
      rdev
      access
      modification
      change
      size
      permissions
        "---------"
        "r--r--r--"
        "-w--w--w-"
        "--x--x--x"
    chdir
    currentdir
    dir
    link
        "hard links to directories are not supported on Windows"
    lock
        http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt__locking.asp
    mkdir
    rmdir
    symlinkattributes
      ...attributes
      target
    setmode
    touch
    unlock
    lock_dir