From: Ondřej Surý <ondrej@isc.org>
Date: Fri, 14 Aug 2026 08:47:51 +0000 (+0200)
Subject: new: dev: Add constant-time DNS root-name checks
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0877c016cb95427b5327327abde23b7eff89eb8b;p=thirdparty%2Fbind9.git

new: dev: Add constant-time DNS root-name checks

Checking whether a DNS name is the root could require walking the name
to count its labels or comparing it with the global root name. A new
dns_name_isroot() helper checks the root wire encoding directly,
distinguishes the empty name from the root, and replaces the existing
ad hoc checks.

Merge branch 'each-name-isroot' into 'main'

See merge request isc-projects/bind9!11920
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0877c016cb95427b5327327abde23b7eff89eb8b