add constants definition
including enum, label and tlv
Change-Id: Ie4f780d9c65882ea80a73fc918c4b2387f4a9c01
diff --git a/src/ndns-label.cpp b/src/ndns-label.cpp
new file mode 100644
index 0000000..6d0d1ae
--- /dev/null
+++ b/src/ndns-label.cpp
@@ -0,0 +1,99 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NDNS 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NDNS, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ndns-label.hpp"
+#include <ndn-cxx/data.hpp>
+#include <ndn-cxx/interest.hpp>
+
+namespace ndn {
+namespace ndns {
+namespace label {
+
+inline size_t
+calculateSkip(const Name& name,
+ const Name& hint, const Name& zone)
+{
+ size_t skip = 0;
+
+ if (!hint.empty()) {
+ // These are only asserts. The caller should supply the right parameters
+ skip = hint.size() + 1 + zone.size();
+ BOOST_ASSERT(name.size() > skip);
+
+ BOOST_ASSERT(name.getPrefix(hint.size()) == hint);
+ BOOST_ASSERT(name.get(hint.size()) == ForwardingHintLabel);
+ BOOST_ASSERT(name.getSubName(hint.size() + 1, zone.size()) == zone);
+
+ }
+ else {
+ skip = zone.size();
+ BOOST_ASSERT(name.size() > skip);
+ BOOST_ASSERT(name.getPrefix(zone.size()) == zone);
+ }
+
+ BOOST_ASSERT(name.get(skip) == NdnsIterativeQuery ||
+ name.get(skip) == NdnsCertQuery);
+
+ ++skip;
+ return skip;
+}
+
+bool
+matchName(const Interest& interest,
+ const Name& hint, const Name& zone,
+ MatchResult& result)
+{
+ // [hint / FHLabel] / zoneName / <Update>|rrLabel / UPDATE|rrType
+
+ const Name& name = interest.getName();
+ size_t skip = calculateSkip(name, hint, zone);
+
+ if (name.size() - skip < 1)
+ return false;
+
+ result.rrType = name.get(-1);
+ result.rrLabel = name.getSubName(skip, std::max<size_t>(0, name.size() - skip - 1));
+ result.version = name::Component();
+
+ return true;
+}
+
+bool
+matchName(const Data& data,
+ const Name& hint, const Name& zone,
+ MatchResult& result)
+{
+ // [hint / FHLabel] / zoneName / <Update>|rrLabel / UPDATE|rrType
+
+ const Name& name = data.getName();
+ size_t skip = calculateSkip(name, hint, zone);
+
+ if (name.size() - skip < 2)
+ return false;
+
+ result.version = name.get(-1);
+ result.rrType = name.get(-2);
+ result.rrLabel = name.getSubName(skip, std::max<size_t>(0, name.size() - skip - 2));
+
+ return true;
+}
+
+} // namespace label
+} // namespace ndns
+} // namespace ndn