ERR_load_crypto_strings, SSL_load_error_strings, ERR_free_strings - load and free error strings


#include <openssl/err.h>

#if OPENSSL_API_COMPAT < 0x10100000L
void ERR_load_crypto_strings(void);
void ERR_free_strings(void);

#include <openssl/ssl.h>

#if OPENSSL_API_COMPAT < 0x10100000L
void SSL_load_error_strings(void);

ERR_load_crypto_strings() registers the error strings for all libcrypto functions. SSL_load_error_strings() does the same, but also registers the libssl error strings.

In versions prior to OpenSSL 1.1.0, ERR_free_strings() releases any resources created by the above functions.

ERR_load_crypto_strings(), SSL_load_error_strings() and ERR_free_strings() return no values.


The ERR_load_crypto_strings(), SSL_load_error_strings(), and ERR_free_strings() functions were deprecated in OpenSSL 1.1.0 by OPENSSL_init_crypto() and OPENSSL_init_ssl() and should not be used.

Copyright 2000-2017 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

2021-03-25 1.1.1k