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-rw-r--r--lib/isc/entropy.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/isc/entropy.c b/lib/isc/entropy.c
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+++ b/lib/isc/entropy.c
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * 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 https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+#include <isc/types.h>
+#include <isc/util.h>
+
+#include "entropy_private.h"
+
+void
+isc_entropy_get(void *buf, size_t buflen) {
+ if (RAND_bytes(buf, buflen) < 1) {
+ FATAL_ERROR("RAND_bytes(): %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ }
+}