lib/resolve: bugfix in zonecut fetching process

diff --git a/lib/resolve.c b/lib/resolve.c
index a8d47f8ae2bf81a9d129fa0adb23918a9a46ad07..392afb35daa2aba3189051f9366e29d865a4be47 100644 (file)
--- a/lib/resolve.c
+++ b/lib/resolve.c
@@ -251,8 +251,18 @@ static int ns_fetch_cut(struct kr_query *qry, const knot_dname_t *requested_name
                 * from authoritative, but we have no key to verify it.
                 * TODO - try to refetch cut only if no glue were fetched */
                kr_zonecut_deinit(&cut_found);
-               /* Try next label */
-               return KR_STATE_CONSUME;
+               if (requested_name[0] != '\0' ) {
+                       /* If not root - try next label */
+                       return KR_STATE_CONSUME;
+               }
+               /* No cached cut & keys found, start from SBELT */
+               ret = kr_zonecut_set_sbelt(req->ctx, &qry->zone_cut);
+               if (ret != 0) {
+                       return KR_STATE_FAIL;
+               }
+               VERBOSE_MSG(qry, "=> using root hints\n");
+               qry->flags &= ~QUERY_AWAIT_CUT;
+               return KR_STATE_DONE;
        }
        /* Copy fetched name */
        qry->zone_cut.name = knot_dname_copy(cut_found.name, qry->zone_cut.pool);