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resolved: don't follow cnames if we already noticed truncation

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This commit is contained in:
Lennart Poettering
2019-03-13 19:34:05 +01:00
parent 6c8a2c6793
commit aa11cab98c
1 changed files with 12 additions and 10 deletions
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src/resolve/resolved-dns-stub.c
+12 -10
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@@ -189,17 +189,19 @@ static void dns_stub_query_complete(DnsQuery *q) {
break;
}
r = dns_query_process_cname(q);
if (r == -ELOOP) {
(void) dns_stub_send_failure(q->manager, q->request_dns_stream, q->request_dns_packet, DNS_RCODE_SERVFAIL, false);
break;
if (!truncated) {
r = dns_query_process_cname(q);
if (r == -ELOOP) {
(void) dns_stub_send_failure(q->manager, q->request_dns_stream, q->request_dns_packet, DNS_RCODE_SERVFAIL, false);
break;
}
if (r < 0) {
log_debug_errno(r, "Failed to process CNAME: %m");
break;
}
if (r == DNS_QUERY_RESTARTED)
return;
}
if (r < 0) {
log_debug_errno(r, "Failed to process CNAME: %m");
break;
}
if (r == DNS_QUERY_RESTARTED)
return;
r = dns_stub_finish_reply_packet(
q->reply_dns_packet,