2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include "eng_local.h"
12 static ENGINE_TABLE *rand_table = NULL;
13 static const int dummy_nid = 1;
15 void ENGINE_unregister_RAND(ENGINE *e)
17 engine_table_unregister(&rand_table, e);
20 static void engine_unregister_all_RAND(void)
22 engine_table_cleanup(&rand_table);
25 int ENGINE_register_RAND(ENGINE *e)
28 return engine_table_register(&rand_table,
29 engine_unregister_all_RAND, e,
34 void ENGINE_register_all_RAND(void)
38 for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
39 ENGINE_register_RAND(e);
42 int ENGINE_set_default_RAND(ENGINE *e)
45 return engine_table_register(&rand_table,
46 engine_unregister_all_RAND, e,
52 * Exposed API function to get a functional reference from the implementation
53 * table (ie. try to get a functional reference from the tabled structural
56 ENGINE *ENGINE_get_default_RAND(void)
58 return engine_table_select(&rand_table, dummy_nid);
61 /* Obtains an RAND implementation from an ENGINE functional reference */
62 const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e)
67 /* Sets an RAND implementation in an ENGINE structure */
68 int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth)
70 e->rand_meth = rand_meth;