ReagentX/crabstep

# crabstep `crabstep` is a Rust library that deserializes Apple's `typedstream` data into cross-platform data structures. ## Overview The `typedstream` format is a binary serialization protocol designed for `C` and `Objective-C` data structures. It is primarily used in Apple's `Foundation` framework, specifically within the `NSArchiver` and `NSUnarchiver` classes. ## Installation This library is available on [crates.io](https://crates.io/crates/crabstep). ## Documentation Documentation is available on [docs.rs](https://docs.rs/crabstep). ### Quick Start use std::{env::current_dir, fs::File, io::Read}; use crabstep::TypedStreamDeserializer; // Read the typedstream file into memory let typedstream_path = current_dir() .unwrap() .as_path() .join("path/to/typedstream/file"); let mut file = File::open(typedstream_path).unwrap(); let mut bytes = vec![]; file.read_to_end(&mut bytes).unwrap(); // Create a deserializer let mut typedstream = TypedStreamDeserializer::new(&bytes); // Iterate over the typedstream's properties typedstream.iter_root() .unwrap() .for_each(|prop| println!("{:#?}", prop)) ### Detailed examples This crate is heavily leveraged by [`imessage-database`](https://crates.io/crates/imessage-database)'s [`body`](https://github.com/ReagentX/imessage-exporter/blob/develop/imessage-database/src/tables/messages/body.rs) module. ## Origin The `typedstream` format is derived from the data structure used by `NeXTSTEP`'s `NXTypedStream` APIs. ## Features - Pure Rust implementation for efficient and safe deserialization - No dependencies on Apple frameworks - Robust error handling for malformed or incomplete `typedstream` data - Ergonomic `TypedStreamDeserializer` with `resolve_properties` iterator for exploring object graphs ## Reverse Engineering A blog post describing the reverse engineering of `typedstream` is available as [an in-depth article](https://chrissardegna.com/blog/reverse-engineering-apples-typedstream-format/). ## Ferris 

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