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LAST BUILD ON BRANCH fix/skip-unknown-file-properties

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Build # 37246727177

Build Type

Pull #501

github

Committed by bodgit

Commit Message

fix: skip unknown file and archive properties

An unrecognised property ID in the files info returned
errUnexpectedID, and archive properties and start positions returned
TODO errors, each failing to open the whole archive. This affected
valid archives, for example ones containing anti-items written by a
7-Zip update.

As 7-Zip does, skip padding, anti-items, comments, start positions
and any unrecognised file properties using their declared length, and
skip all archive properties. 7-Zip only exposes start positions as an
informational item property and never uses them for extraction. The
length is range checked first so a huge value can't silently skip
nothing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Pull Request Pull Request #501: fix: skip unknown file and archive properties

Coverage Stats

31 of 37 new or added lines in 1 file covered. (83.78%)

1995 of 2581 relevant lines covered (77.3%)

0.87 hits per line