mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
|
|
* Copyright 2001-2016 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_int.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()
|
|
{
|
|
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;
|
|
}
|