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Merge branch '2091-print-out-more-diagnostics-on-dns_name_issubdomain' into 'main'

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Print diagnostics on dns_name_issubdomain() failure in fctx_create()

Closes #2091

See merge request isc-projects/bind9!4071
This commit is contained in:
Ondřej Surý 2020-09-02 16:33:19 +00:00
commit aa42c8676f
1 changed files with 8 additions and 1 deletions
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9
lib/dns/resolver.c
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@ -5110,7 +5110,14 @@ fctx_create(dns_resolver_t *res, const dns_name_t *name, dns_rdatatype_t type,
log_ns_ttl(fctx, "fctx_create");
INSIST(dns_name_issubdomain(&fctx->name, &fctx->domain));
if (!dns_name_issubdomain(&fctx->name, &fctx->domain)) {
dns_name_format(&fctx->domain, buf, sizeof(buf));
UNEXPECTED_ERROR(__FILE__, __LINE__,
"'%s' is not subdomain of '%s'", fctx->info,
buf);
result = ISC_R_UNEXPECTED;
goto cleanup_fcount;
}
fctx->qmessage = NULL;
result = dns_message_create(mctx, DNS_MESSAGE_INTENTRENDER,