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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "crypto/s2n_fips.h"
#include "error/s2n_errno.h"
#include "tls/s2n_cipher_suites.h"
#include "tls/extensions/s2n_extension_type.h"
#include "tls/s2n_security_policies.h"
#include "tls/extensions/s2n_client_key_share.h"
#include "utils/s2n_mem.h"
#include "utils/s2n_random.h"
#include "utils/s2n_safety.h"
#include "openssl/opensslv.h"
#include "pq-crypto/s2n_pq.h"
static void s2n_cleanup_atexit(void);
unsigned long s2n_get_openssl_version(void)
{
return OPENSSL_VERSION_NUMBER;
}
int s2n_init(void)
{
GUARD_POSIX(s2n_fips_init());
GUARD_POSIX(s2n_mem_init());
GUARD_AS_POSIX(s2n_rand_init());
GUARD_POSIX(s2n_cipher_suites_init());
GUARD_POSIX(s2n_security_policies_init());
GUARD_POSIX(s2n_config_defaults_init());
GUARD_POSIX(s2n_extension_type_init());
GUARD_AS_POSIX(s2n_pq_init());
S2N_ERROR_IF(atexit(s2n_cleanup_atexit) != 0, S2N_ERR_ATEXIT);
if (getenv("S2N_PRINT_STACKTRACE")) {
s2n_stack_traces_enabled_set(true);
}
return 0;
}
int s2n_cleanup(void)
{
/* s2n_cleanup is supposed to be called from each thread before exiting,
* so ensure that whatever clean ups we have here are thread safe */
GUARD_AS_POSIX(s2n_rand_cleanup_thread());
return 0;
}
static bool s2n_cleanup_atexit_impl(void)
{
/* all of these should run, regardless of result, but the
* values to need to be consumed to prevent warnings */
bool a = s2n_result_is_ok(s2n_rand_cleanup_thread());
bool b = s2n_result_is_ok(s2n_rand_cleanup());
bool c = s2n_mem_cleanup() == 0;
s2n_wipe_static_configs();
return a && b && c;
}
static void s2n_cleanup_atexit(void)
{
s2n_cleanup_atexit_impl();
}
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