Adding upstream version 2.4.1.upstream/2.4.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/lib/dns/qid_gen.cc b/src/lib/dns/qid_gen.cc
new file mode 100644
index 0000000..dad2b6f
--- /dev/null
+++ b/src/lib/dns/qid_gen.cc
@@ -0,0 +1,42 @@
+// Copyright (C) 2011-2021 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// qid_gen defines a generator for query id's
+//
+// We probably want to merge this with the weighted random in the nsas
+// (and other parts where we need randomness, perhaps another thing
+// for a general libutil?)
+
+#include <config.h>
+
+#include <cryptolink/crypto_rng.h>
+#include <dns/qid_gen.h>
+#include <cstring>
+
+namespace isc {
+namespace dns {
+
+QidGenerator qid_generator_instance;
+
+QidGenerator&
+QidGenerator::getInstance() {
+    return (qid_generator_instance);
+}
+
+QidGenerator::QidGenerator()
+{
+}
+
+uint16_t
+QidGenerator::generateQid() {
+    uint16_t val;
+    std::vector<uint8_t> rnd = isc::cryptolink::random(sizeof(uint16_t));
+    memmove(&val, &rnd[0], sizeof(uint16_t));
+    return (val);
+}
+
+} // namespace dns
+} // namespace isc