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

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This commit is contained in:
Lennart Poettering 2014-08-01 00:57:19 +02:00
parent 7be6885326
commit 95dd6257a6
1 changed files with 2 additions and 0 deletions
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2
src/resolve/resolved-dns-cache.c
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@ -320,6 +320,8 @@ static int dns_cache_put_negative(DnsCache *c, DnsResourceKey *key, int rcode, u
return 0; return 0;
if (key->type == DNS_TYPE_ANY) if (key->type == DNS_TYPE_ANY)
return 0; return 0;
if (soa_ttl <= 0)
return 0;
if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN)) if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN))
return 0; return 0;