[PR #587] [MERGED] Matching of CAA Tag value should be done case insensitively #1532

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opened 2026-03-16 02:11:38 +03:00 by kerem · 0 comments

kerem commented

2026-03-16 02:11:38 +03:00

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📋 Pull Request Information

Original PR: https://github.com/hickory-dns/hickory-dns/pull/587
Author: @oherrala
Created: 10/18/2018
Status: ✅ Merged
Merged: 10/18/2018
Merged by: @bluejekyll

Base: master ← Head: caa-case-insensitive-match

📝 Commits (1)

0472fe9 Matching of CAA Tag value should be done case insensitively

📊 Changes

1 file changed (+6 additions, -3 deletions)

View changed files

📝 proto/src/rr/rdata/caa.rs (+6 -3)

📄 Description

RFC6488 section 5.1 states that

Tag values MAY contain US-ASCII characters 'a' through 'z', 'A' through 'Z', and the numbers 0 through 9. Tag values SHOULD NOT contain any other characters. Matching of tag values is case insensitive.

so make the tag lowercase before comparison.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/hickory-dns/hickory-dns/pull/587 **Author:** [@oherrala](https://github.com/oherrala) **Created:** 10/18/2018 **Status:** ✅ Merged **Merged:** 10/18/2018 **Merged by:** [@bluejekyll](https://github.com/bluejekyll) **Base:** `master` ← **Head:** `caa-case-insensitive-match` --- ### 📝 Commits (1) - [`0472fe9`](https://github.com/hickory-dns/hickory-dns/commit/0472fe910c5d9d744c588dc5015c193864a53e5a) Matching of CAA Tag value should be done case insensitively ### 📊 Changes **1 file changed** (+6 additions, -3 deletions) <details> <summary>View changed files</summary> 📝 `proto/src/rr/rdata/caa.rs` (+6 -3) </details> ### 📄 Description [RFC6488 section 5.1](https://tools.ietf.org/html/rfc6844#section-5.1) states that > Tag values MAY contain US-ASCII characters 'a' through 'z', 'A' through 'Z', and the numbers 0 through 9. Tag values SHOULD NOT contain any other characters. **Matching of tag values is case insensitive.** so make the tag lowercase before comparison. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>