tb_store.c

OpenSSL 0.9.8k 最新版OpenSSL

/* ====================================================================
 * Copyright (c) 2003 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "OpenSSL"
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 *    permission of the OpenSSL Project.
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 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * ([e-mail]).  This product includes software written by Tim
 * Hudson ([e-mail]).
 *
 */

#include "eng_int.h"

/* If this symbol is defined then ENGINE_get_default_STORE(), the function that is
 * used by STORE to hook in implementation code and cache defaults (etc), will
 * display brief debugging summaries to stderr with the 'nid'. */
/* #define ENGINE_STORE_DEBUG */

static ENGINE_TABLE *store_table = NULL;
static const int dummy_nid = 1;

void ENGINE_unregister_STORE(ENGINE *e)
	{
	engine_table_unregister(&store_table, e);
	}

static void engine_unregister_all_STORE(void)
	{
	engine_table_cleanup(&store_table);
	}

int ENGINE_register_STORE(ENGINE *e)
	{
	if(e->store_meth)
		return engine_table_register(&store_table,
				engine_unregister_all_STORE, e, &dummy_nid, 1, 0);
	return 1;
	}

void ENGINE_register_all_STORE()
	{
	ENGINE *e;

	for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
		ENGINE_register_STORE(e);
	}

/* The following two functions are removed because they're useless. */
#if 0
int ENGINE_set_default_STORE(ENGINE *e)
	{
	if(e->store_meth)
		return engine_table_register(&store_table,
				engine_unregister_all_STORE, e, &dummy_nid, 1, 1);
	return 1;
	}
#endif

#if 0
/* 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_STORE(void)
	{
	return engine_table_select(&store_table, dummy_nid);
	}
#endif

/* Obtains an STORE implementation from an ENGINE functional reference */
const STORE_METHOD *ENGINE_get_STORE(const ENGINE *e)
	{
	return e->store_meth;
	}

/* Sets an STORE implementation in an ENGINE structure */
int ENGINE_set_STORE(ENGINE *e, const STORE_METHOD *store_meth)
	{
	e->store_meth = store_meth;
	return 1;
	}