resolved: rework logic so that we can share transactions between queries of different clients

1 files changed, 49 insertions, 0 deletions

diff --git a/src/resolve/resolved-dns-question.h b/src/resolve/resolved-dns-question.h
new file mode 100644
index 0000000000..7da627fdca
--- /dev/null
+++ b/src/resolve/resolved-dns-question.h
@@ -0,0 +1,49 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+typedef struct DnsQuestion DnsQuestion;
+
+#include "resolved-dns-rr.h"
+
+/* A simple array of resources keys */
+
+struct DnsQuestion {
+        unsigned n_ref;
+        unsigned n_keys, n_allocated;
+        DnsResourceKey* keys[0];
+};
+
+DnsQuestion *dns_question_new(unsigned n);
+DnsQuestion *dns_question_ref(DnsQuestion *q);
+DnsQuestion *dns_question_unref(DnsQuestion *q);
+
+int dns_question_add(DnsQuestion *q, DnsResourceKey *key);
+
+int dns_question_matches_rr(DnsQuestion *q, DnsResourceRecord *rr);
+int dns_question_matches_cname(DnsQuestion *q, DnsResourceRecord *rr);
+int dns_question_is_valid(DnsQuestion *q);
+int dns_question_is_superset(DnsQuestion *q, DnsQuestion *other);
+
+int dns_question_cname_redirect(DnsQuestion *q, const char *name, DnsQuestion **ret);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuestion*, dns_question_unref);