/*

 * Copyright 2002-2019 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 <stdio.h>

#include <openssl/crypto.h>

#include "internal/cryptlib.h"

#include "internal/conf.h"

#include <openssl/x509.h>

#include <openssl/asn1.h>

#include <openssl/engine.h>

#ifdef _WIN32

# define strdup _strdup

#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 int openssl_configured = 0;

#if OPENSSL_API_COMPAT < 0x10100000L

void OPENSSL_config(const char *appname)

{

    OPENSSL_INIT_SETTINGS settings;

    memset(&settings, 0, sizeof(settings));

    if (appname != NULL)

        settings.appname = strdup(appname);

    settings.flags = DEFAULT_CONF_MFLAGS;

    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, &settings);

}

#endif

int openssl_config_int(const OPENSSL_INIT_SETTINGS *settings)

{

    int ret = 0;

    const char *filename;

    const char *appname;

    unsigned long flags;

    if (openssl_configured)

        return 1;

    filename = settings ? settings->filename : NULL;

    appname = settings ? settings->appname : NULL;

    flags = settings ? settings->flags : DEFAULT_CONF_MFLAGS;

#ifdef OPENSSL_INIT_DEBUG

    fprintf(stderr, "OPENSSL_INIT: openssl_config_int(%s, %s, %lu)\n",

            filename, appname, flags);

#endif

    OPENSSL_load_builtin_modules();

#ifndef OPENSSL_NO_ENGINE

    /* Need to load ENGINEs */

    ENGINE_load_builtin_engines();

#endif

    ERR_clear_error();

#ifndef OPENSSL_SYS_UEFI

    ret = CONF_modules_load_file(filename, appname, flags);

#endif

    openssl_configured = 1;

    return ret;

}

void openssl_no_config_int(void)

{

    openssl_configured = 1;

}