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Don't copy EDE codes if source is same as destination

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If the nested DNS validator ends up in the same fetch because of the
loops, the code could be copying the EDE codes from the same source EDE
context as the destination EDE context.  Skip copying the EDE codes if
the source and the destination is the same.
This commit is contained in:
Ondřej Surý 2025-04-02 18:06:52 +02:00
parent fe48290140
commit 2988ebae21
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1 changed files with 4 additions and 0 deletions
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lib/dns/ede.c
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@ -134,6 +134,10 @@ dns_ede_copy(dns_edectx_t *edectx_to, const dns_edectx_t *edectx_from) {
REQUIRE(DNS_EDE_VALID(edectx_to));
REQUIRE(DNS_EDE_VALID(edectx_from));
if (edectx_to == edectx_from) {
return;
}
for (size_t pos = 0; pos < DNS_EDE_MAX_ERRORS; pos++) {
uint16_t fromcode;