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Fix case-sensitivity bug in zone filename token-parsing

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The setfilename() function uses case-insensitive strcasestr() when
matching the possible tokens, but then one of the token parsers
uses case-sensitive INSIST checks which can assert when, for example,
matching '%X' and INSIST only accepts '%x'.

The case-insensitivity is documented, which means it's the parser
that needs to be fixed, not the matcher.

Convert the character to lowercase before checking the token's
validity.
This commit is contained in:
Aram Sargsyan 2026-04-13 11:38:19 +00:00 committed by Arаm Sаrgsyаn
parent 07c8cddb4c
commit d2f7b969fe
1 changed files with 1 additions and 1 deletions
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2
lib/dns/zoneproperties.c
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@ -366,7 +366,7 @@ tokenparse_label(const token_names_t *names, const foundtoken_t *token,
dns_name_copy(dns_rootname, target);
labels = dns_name_countlabels(names->zonename);
labeltokidx = token->pos[token->len - 1];
labeltokidx = isc_ascii_tolower(token->pos[token->len - 1]);
if (token->len == 2) {
/*
* %z, %y, %x pattern