A local copy of OpenSSL from GitHub
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* Copyright 2002-2021 The OpenSSL Project Authors. All Rights Reserved.
* Licensed under the Apache License 2.0 (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>
#if defined(_WIN32) && !defined(__BORLANDC__)
# define strdup _strdup
* 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;
void OPENSSL_config(const char *appname)
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);
int ossl_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;
fprintf(stderr, "OPENSSL_INIT: ossl_config_int(%s, %s, %lu)\n",
filename, appname, flags);
ret = CONF_modules_load_file(filename, appname, flags);
openssl_configured = 1;
return ret;
void ossl_no_config_int(void)
openssl_configured = 1;