cache: fix cache record refreshing

Signed-off-by: Steven Barth <steven@midlink.org>

diff --git a/cache.c b/cache.c
index 2bf8257..07d4f20 100644 (file)
--- a/cache.c
+++ b/cache.c
@@ -239,6 +239,7 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
        void *rdata_ptr, *txt_ptr;
        int host_len = 0;
        static char *rdata_buffer = (char *) mdns_buf;
+       time_t now = monotonic_time();
 
        nlen = strlen(name);
 
@@ -322,9 +323,10 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
        if (r) {
                if (!a->ttl) {
                        DBG(1, "D -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);
-                       r->time = monotonic_time() + 1 - r->ttl;
+                       r->time = now + 1 - r->ttl;
                } else {
                        r->ttl = a->ttl;
+                       r->time = now;
                        DBG(1, "A -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);
                }
                return;
@@ -343,7 +345,7 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
        r->ttl = a->ttl;
        r->port = port;
        r->rdlength = dlen;
-       r->time = monotonic_time();
+       r->time = now;
        r->iface = iface;
 
        if (tlen)