val nameBuf = Buffer()
        val labels = host.split('.').dropLastWhile { it.isEmpty() }
        for (label in labels) {
          val utf8ByteCount = label.utf8Size()
          require(utf8ByteCount == label.length.toLong()) { "non-ascii hostname: $host" }
          nameBuf.writeByte(utf8ByteCount.toInt())
          nameBuf.writeUtf8(label)
        }
        nameBuf.writeByte(0) // end

		// files and directories.
		typ = unexpectedFileMode
	}

	nameBuf := (*[unsafe.Sizeof(dirent.Name)]byte)(unsafe.Pointer(&dirent.Name[0]))
	nameLen, err := direntNamlen(dirent)
	if err != nil {
		return consumed, nil, typ, err
	}

	return consumed, nameBuf[:nameLen], typ, nil
}

// readDirFn applies the fn() function on each entries at dirPath, doesn't recurse into