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cache: make cname ttl countdown

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This commit is contained in:
Nick Peng
2022-02-16 19:02:37 +08:00
parent e98cf5b711
commit 75d91096ca
3 changed files with 45 additions and 2 deletions
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13
src/dns_server.c
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@@ -2349,6 +2349,17 @@ static int _dns_server_get_expired_ttl_reply(struct dns_cache *dns_cache)
return dns_conf_serve_expired_reply_ttl;
}
static int _dns_server_get_expired_cname_ttl_reply(struct dns_cache *dns_cache)
{
int ttl = dns_cache_get_cname_ttl(dns_cache);
if (ttl > 0) {
return ttl;
}
return dns_conf_serve_expired_reply_ttl;
}
static int _dns_server_process_cache_addr(struct dns_request *request, struct dns_cache *dns_cache)
{
struct dns_cache_addr *cache_addr = (struct dns_cache_addr *)dns_cache_get_data(dns_cache);
@@ -2376,7 +2387,7 @@ static int _dns_server_process_cache_addr(struct dns_request *request, struct dn
if (cache_addr->addr_data.cname[0] != 0) {
safe_strncpy(request->cname, cache_addr->addr_data.cname, DNS_MAX_CNAME_LEN);
request->has_cname = 1;
request->ttl_cname = cache_addr->addr_data.cname_ttl;
request->ttl_cname = _dns_server_get_expired_cname_ttl_reply(dns_cache);
}
request->rcode = DNS_RC_NOERROR;