resolved: don't bother caching negative RRs when the SOA TTL is 0 anyway

2014-08-01 00:58:13 +02:00
parent 7be6885326
commit 95dd6257a6
1 changed files with 2 additions and 0 deletions
@@ -320,6 +320,8 @@ static int dns_cache_put_negative(DnsCache *c, DnsResourceKey *key, int rcode, u
                return 0;
        if (key->type == DNS_TYPE_ANY)
                return 0;
+        if (soa_ttl <= 0)
+                return 0;

        if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN))
                return 0;