Inspecting files of type “NeXT/Apple typedstream” version 4 (NSArchiver)

Question

For a data recovery program I need to be able to extract the values+types from files written by NSArchiver, without having access to Apple\'s CF / NS frameworks.

The OS

Answer 1

It seems to be part of the GNU Objective-C runtime, even though it's not exactly runtime stuff (see the discussion at: http://gcc.gnu.org/ml/gcc-patches/2010-09/msg00495.html)

This file may implement that stuff: https://github.com/gnustep/libobjc/blob/master/archive.c