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Handle replies with no answers and no NS in validate_reply.

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Simon Kelley
2014-03-01 18:07:57 +00:00
parent e3f1455850
commit 0575610fa1
1 changed files with 4 additions and 0 deletions
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4
src/dnssec.c
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@@ -1719,6 +1719,10 @@ int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, ch
if (neganswer && !have_answer) if (neganswer && !have_answer)
*neganswer = 1; *neganswer = 1;
/* No data, therefore no sigs */
if (ntohs(header->ancount) + ntohs(header->nscount) == 0)
return STAT_NO_SIG;
for (p1 = ans_start, i = 0; i < ntohs(header->ancount) + ntohs(header->nscount); i++) for (p1 = ans_start, i = 0; i < ntohs(header->ancount) + ntohs(header->nscount); i++)
{ {
if (!extract_name(header, plen, &p1, name, 1, 10)) if (!extract_name(header, plen, &p1, name, 1, 10))