Fix TSIG position calculation if there are other additional records.

NLnetLabs / domain

A DNS library for Rust.

https://nlnetlabs.nl/projects/domain/about/

BSD 3-Clause "New" or "Revised" License

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Fix TSIG position calculation if there are other additional records. #333

Closed partim closed 1 month ago

partim commented 1 month ago

This PR fixes a mistake in the tsig module while calculating the start of the TSIG record when there were other records in the additional section, causing the TSIG code to fail if OPT records were in use.