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/* $OpenBSD: conf_sap.c,v 1.14 2018/03/19 03:56:08 beck Exp $ */
/* Written by Stephen Henson (steve@openssl.org) for the OpenSSL
* project 2001.
*/
/* ====================================================================
* Copyright (c) 2001 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
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 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
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <pthread.h>
#include <stdio.h>
#include <openssl/opensslconf.h>
#include <openssl/asn1.h>
#include <openssl/conf.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
/* This is the automatic configuration loader: it is called automatically by
* OpenSSL when any of a number of standard initialisation functions are called,
* unless this is overridden by calling OPENSSL_no_config()
*/
static pthread_once_t openssl_configured = PTHREAD_ONCE_INIT;
static const char *openssl_config_name;
static void
OPENSSL_config_internal(void)
{
OPENSSL_load_builtin_modules();
#ifndef OPENSSL_NO_ENGINE
/* Need to load ENGINEs */
ENGINE_load_builtin_engines();
#endif
/* Add others here? */
ERR_clear_error();
if (CONF_modules_load_file(NULL, openssl_config_name,
CONF_MFLAGS_DEFAULT_SECTION|CONF_MFLAGS_IGNORE_MISSING_FILE) <= 0) {
BIO *bio_err;
ERR_load_crypto_strings();
if ((bio_err = BIO_new_fp(stderr, BIO_NOCLOSE)) != NULL) {
BIO_printf(bio_err, "Auto configuration failed\n");
ERR_print_errors(bio_err);
BIO_free(bio_err);
}
exit(1);
}
return;
}
int
OpenSSL_config(const char *config_name)
{
/* Don't override if NULL */
/*
* Note - multiple threads calling this with *different* config names
* is probably not advisable. One thread will win, but you don't know
* if it will be the same thread as wins the pthread_once.
*/
if (config_name != NULL)
openssl_config_name = config_name;
if (OPENSSL_init_crypto(0, NULL) == 0)
return 0;
if (pthread_once(&openssl_configured, OPENSSL_config_internal) != 0)
return 0;
return 1;
}
void
OPENSSL_config(const char *config_name)
{
(void) OpenSSL_config(config_name);
}
static void
OPENSSL_no_config_internal(void)
{
}
int
OpenSSL_no_config(void)
{
if (pthread_once(&openssl_configured, OPENSSL_no_config_internal) != 0)
return 0;
return 1;
}
void
OPENSSL_no_config(void)
{
(void) OpenSSL_no_config();
}
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