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Disallow wildcard partial domains when using MatchDomainName. #9991

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Disallow wildcard partial domains when using MatchDomainName. #9991

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5 changes: 5 additions & 0 deletions src/internal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13199,6 +13199,11 @@ int MatchDomainName(const char* pattern, int patternLen, const char* str,

/* Only single wildcard allowed with strict left only */
if (leftWildcardOnly) {
/* For the left wildcard only case, disallow wildcards with
* the pattern *domain.com and only allow *.domain.com. */
if (patternLen > 0 && *pattern != '.')
return 0;

wildcardEligible = 0;
}

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