Files
clawhdf5/crates/clawhdf5-format
osobhandClaude Opus 5.5 16b7359485 fix(format): a v1 group with an empty link name fails its listing
libhdf5 refuses to list a symbol-table group that has an entry with an
empty name (H5G__ent_to_link: "invalid link name"), so h5py cannot list
cve-2021-46244's /BAG_root. We listed it, with an object at "/BAG_root/"
(the empty name, pointing at address 0). resolve_v1_group_entries — the
listing — now fails with the new FormatError::InvalidLinkName; path
lookups still find the group's other names, as libhdf5's by-name lookup
does.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-09-26 10:15:50 -05:00
..

clawhdf5-format

crates.io docs.rs

Pure-Rust HDF5 binary format parsing and writing — no C dependencies.

Features

  • Zero-copy superblock, object header, and B-tree parsing
  • Chunked dataset read/write with filter pipelines
  • no_std support (disable std feature)
  • Optional parallel reads via Rayon
  • SHA-256 provenance tracking

Usage

use clawhdf5_format::Superblock;

let data = std::fs::read("data.h5").unwrap();
let sb = Superblock::from_bytes(&data).unwrap();
println!("HDF5 version {}.{}", sb.version_major(), sb.version_minor());

License

MIT