/* * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #include "eng_local.h" static ENGINE_TABLE *rand_table = NULL; static const int dummy_nid = 1; void ENGINE_unregister_RAND(ENGINE *e) { engine_table_unregister(&rand_table, e); } static void engine_unregister_all_RAND(void) { engine_table_cleanup(&rand_table); } int ENGINE_register_RAND(ENGINE *e) { if (e->rand_meth) return engine_table_register(&rand_table, engine_unregister_all_RAND, e, &dummy_nid, 1, 0); return 1; } void ENGINE_register_all_RAND(void) { ENGINE *e; for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) ENGINE_register_RAND(e); } int ENGINE_set_default_RAND(ENGINE *e) { if (e->rand_meth) return engine_table_register(&rand_table, engine_unregister_all_RAND, e, &dummy_nid, 1, 1); return 1; } /* * Exposed API function to get a functional reference from the implementation * table (ie. try to get a functional reference from the tabled structural * references). */ ENGINE *ENGINE_get_default_RAND(void) { return engine_table_select(&rand_table, dummy_nid); } /* Obtains an RAND implementation from an ENGINE functional reference */ const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e) { return e->rand_meth; } /* Sets an RAND implementation in an ENGINE structure */ int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth) { e->rand_meth = rand_meth; return 1; } |