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/* GATE PROJECT LICENSE:
+----------------------------------------------------------------------------+
| Copyright(c) 2018-2025, Stefan Meislinger <sm@opengate.at>                 |
| 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.    |
|                                                                            |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"|
| AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.                                            |
+----------------------------------------------------------------------------+
*/

#include "gate/net/platform/openssl_api.h"


#if defined(GATE_NET_SSL_SHAREDLIB)

struct lib_pair
{
    char const* lib1;
    char const* lib2;
};

static struct lib_pair ssl_lib_names[] = {
#if defined(GATE_SYS_WIN)
        { "libcrypto-1_1-x64.dll", "libssl-1_1-x64.dll" },
        { "libcrypto-1_1.dll", "libssl-1_1.dll" },
        { "libcrypto.dll", "libssl.dll" },
        { "libeay32.dll", "ssleay32.dll" }
#elif defined(GATE_SYS_DARWIN)
        { "libcrypto.dylib", "libssl.dylib" },
#else
        { "libcrypto.so.1.1", "libssl.so.1.1" },
        { "libcrypto.so", "libssl.so" }
#endif
};
static gate_size_t const ssl_lib_names_count = sizeof(ssl_lib_names) / sizeof(ssl_lib_names[0]);

static gate_result_t load_libssl_libs(gate_library_t* ptr_lib1, gate_library_t* ptr_lib2)
{
    gate_result_t result;
    gate_size_t ndx;
    gate_library_t lib1, lib2;
    gate_string_t libname;

    for (ndx = 0; ndx != ssl_lib_names_count; ++ndx)
    {
        gate_string_create_static(&libname, ssl_lib_names[ndx].lib1);
        result = gate_library_open(&libname, &lib1, GATE_LIBRARY_FLAG_DEFAULT);
        if (GATE_FAILED(result))
        {
            continue;
        }
        if (ptr_lib2)
        {
            gate_string_create_static(&libname, ssl_lib_names[ndx].lib2);
            result = gate_library_open(&libname, &lib2, GATE_LIBRARY_FLAG_DEFAULT);
            if (GATE_FAILED(result))
            {
                gate_library_close(lib1);
                continue;
            }
            *ptr_lib2 = lib2;
        }
        *ptr_lib1 = lib1;
        return GATE_RESULT_OK;
    }
    return GATE_RESULT_FAILED;
}


static gate_result_t load_libssl_function(void* target_ptr, char const* name)
{
    static gate_library_t lib1 = NULL, lib2 = NULL;
    static gate_bool_t volatile libs_loaded = false;
    gate_result_t ret;

    do
    {
        if (!libs_loaded)
        {
            ret = load_libssl_libs(&lib1, &lib2);
            if (GATE_FAILED(ret))
            {
                ret = load_libssl_libs(&lib1, NULL);
            }
            GATE_BREAK_IF_FAILED(ret);
            libs_loaded = true;
        }
        ret = gate_library_get_function_name(lib1, name, target_ptr);
        if (GATE_FAILED(ret) && lib2)
        {
            ret = gate_library_get_function_name(lib2, name, target_ptr);
        }
    } while (0);

    return ret;
}

#	define gate_get_libssl_function(func_ptr, func_name) \
		ret = load_libssl_function(&func_ptr, #func_name ); \
		if(GATE_FAILED(ret)) { break; }

#	define gate_get_libssl_function_alt(func_ptr, func_name, alt_func_name) \
		ret = load_libssl_function(&func_ptr, #func_name ); \
		if(GATE_FAILED(ret)) { ret = load_libssl_function(&func_ptr, #alt_func_name ); } \
		if(GATE_FAILED(ret)) { break; }


#	define gate_get_libssl_function_optional(func_ptr, func_name) \
		load_libssl_function(&func_ptr, #func_name )

#else

#	define gate_get_libssl_function_static(func_ptr, func_name)	(func_ptr) = & (func_name)
#	define gate_get_libssl_function(func_ptr, func_name) gate_get_libssl_function_static(func_ptr, func_name)
#	define gate_get_libssl_function_optional(func_ptr, func_name) gate_get_libssl_function(func_ptr, func_name)
#	define gate_get_libssl_function_alt(func_ptr, func_name, alt_func_name) gate_get_libssl_function(func_ptr, func_name)

#endif

static gate_libcrypto_api_t glob_libcrypto;
static gate_libssl_api_t glob_libssl;


static gate_result_t load_libcrypto()
{
    static volatile gate_bool_t libcrypto_loaded = false;

    gate_result_t ret = GATE_RESULT_OK;

    if (!libcrypto_loaded)
    {
        ret = GATE_RESULT_FAILED;<--- Variable 'ret' is reassigned a value before the old one has been used.<--- Variable 'ret' is reassigned a value before the old one has been used.
        do
        {
            /* crypto functions: */

            gate_get_libssl_function_optional(glob_libcrypto.api_OPENSSL_cleanup, OPENSSL_cleanup);
            gate_get_libssl_function_optional(glob_libcrypto.api_OPENSSL_init_crypto, OPENSSL_init_crypto);

            gate_get_libssl_function(glob_libcrypto.api_ERR_load_BIO_strings, ERR_load_BIO_strings);<--- Variable 'ret' is reassigned a value before the old one has been used.
            gate_get_libssl_function(glob_libcrypto.api_ERR_clear_error, ERR_clear_error);
            gate_get_libssl_function(glob_libcrypto.api_ERR_remove_thread_state, ERR_remove_thread_state);

            gate_get_libssl_function(glob_libcrypto.api_BIO_s_mem, BIO_s_mem);
            gate_get_libssl_function(glob_libcrypto.api_BIO_new_mem_buf, BIO_new_mem_buf);
            gate_get_libssl_function(glob_libcrypto.api_BIO_new, BIO_new);
            gate_get_libssl_function(glob_libcrypto.api_BIO_new_file, BIO_new_file);
            gate_get_libssl_function(glob_libcrypto.api_BIO_ctrl, BIO_ctrl);
            gate_get_libssl_function(glob_libcrypto.api_BIO_free_all, BIO_free_all);
            gate_get_libssl_function(glob_libcrypto.api_BIO_free, BIO_free);
            gate_get_libssl_function(glob_libcrypto.api_BIO_read, BIO_read);
            gate_get_libssl_function(glob_libcrypto.api_BIO_test_flags, BIO_test_flags);
            gate_get_libssl_function(glob_libcrypto.api_BIO_write, BIO_write);
            gate_get_libssl_function(glob_libcrypto.api_BIO_new_bio_pair, BIO_new_bio_pair);

            gate_get_libssl_function(glob_libcrypto.api_DH_new, DH_new);
            gate_get_libssl_function(glob_libcrypto.api_DH_free, DH_free);
            gate_get_libssl_function(glob_libcrypto.api_DH_generate_parameters_ex, DH_generate_parameters_ex);
            gate_get_libssl_function(glob_libcrypto.api_DH_check, DH_check);
            gate_get_libssl_function(glob_libcrypto.api_DH_generate_key, DH_generate_key);

            gate_get_libssl_function(glob_libcrypto.api_PEM_read_bio_RSAPrivateKey, PEM_read_bio_RSAPrivateKey);

            gate_get_libssl_function(glob_libcrypto.api_RSA_new, RSA_new);
            gate_get_libssl_function(glob_libcrypto.api_RSA_size, RSA_size);
            gate_get_libssl_function(glob_libcrypto.api_RSA_set0_key, RSA_set0_key);
            gate_get_libssl_function(glob_libcrypto.api_RSA_set0_factors, RSA_set0_factors);
            gate_get_libssl_function(glob_libcrypto.api_RSA_set0_crt_params, RSA_set0_crt_params);
            gate_get_libssl_function(glob_libcrypto.api_RSA_get0_key, RSA_get0_key);
            gate_get_libssl_function(glob_libcrypto.api_RSA_get0_factors, RSA_get0_factors);
            gate_get_libssl_function(glob_libcrypto.api_RSA_sign, RSA_sign);
            gate_get_libssl_function(glob_libcrypto.api_RSA_verify, RSA_verify);
            gate_get_libssl_function(glob_libcrypto.api_RSA_free, RSA_free);

            gate_get_libssl_function(glob_libcrypto.api_PEM_read_bio_X509, PEM_read_bio_X509);
            gate_get_libssl_function(glob_libcrypto.api_PEM_read_bio_DSAPrivateKey, PEM_read_bio_DSAPrivateKey);
            gate_get_libssl_function(glob_libcrypto.api_PEM_read_bio_ECPrivateKey, PEM_read_bio_ECPrivateKey);
            gate_get_libssl_function(glob_libcrypto.api_PEM_read_bio_PrivateKey, PEM_read_bio_PrivateKey);

            gate_get_libssl_function(glob_libcrypto.api_X509_free, X509_free);
            gate_get_libssl_function(glob_libcrypto.api_X509_get_serialNumber, X509_get_serialNumber);
            gate_get_libssl_function(glob_libcrypto.api_X509_get_subject_name, X509_get_subject_name);
            gate_get_libssl_function(glob_libcrypto.api_X509_get_issuer_name, X509_get_issuer_name);
            gate_get_libssl_function(glob_libcrypto.api_X509_NAME_print_ex, X509_NAME_print_ex);
            gate_get_libssl_function(glob_libcrypto.api_X509_NAME_oneline, X509_NAME_oneline);

            gate_get_libssl_function(glob_libcrypto.api_ASN1_TIME_new, ASN1_TIME_new);
            gate_get_libssl_function(glob_libcrypto.api_ASN1_TIME_set_string, ASN1_TIME_set_string);
            gate_get_libssl_function(glob_libcrypto.api_ASN1_STRING_free, ASN1_STRING_free);
            gate_get_libssl_function(glob_libcrypto.api_ASN1_TIME_print, ASN1_TIME_print);

            gate_get_libssl_function(glob_libcrypto.api_HMAC_CTX_new, HMAC_CTX_new);
            gate_get_libssl_function(glob_libcrypto.api_HMAC_CTX_free, HMAC_CTX_free);
            gate_get_libssl_function(glob_libcrypto.api_HMAC_Init_ex, HMAC_Init_ex);
            gate_get_libssl_function(glob_libcrypto.api_HMAC_Update, HMAC_Update);
            gate_get_libssl_function(glob_libcrypto.api_HMAC_Final, HMAC_Final);

            gate_get_libssl_function(glob_libcrypto.api_EVP_md5, EVP_md5);
            gate_get_libssl_function(glob_libcrypto.api_EVP_md5_sha1, EVP_md5_sha1);
            gate_get_libssl_function(glob_libcrypto.api_EVP_sha1, EVP_sha1);
            gate_get_libssl_function(glob_libcrypto.api_EVP_sha256, EVP_sha256);
            gate_get_libssl_function(glob_libcrypto.api_EVP_sha512, EVP_sha512);
            gate_get_libssl_function(glob_libcrypto.api_EVP_ripemd160, EVP_ripemd160);
            gate_get_libssl_function(glob_libcrypto.api_EVP_get_digestbyname, EVP_get_digestbyname);


            gate_get_libssl_function(glob_libcrypto.api_EVP_CIPHER_CTX_new, EVP_CIPHER_CTX_new);
            gate_get_libssl_function(glob_libcrypto.api_EVP_CIPHER_CTX_free, EVP_CIPHER_CTX_free);
            gate_get_libssl_function(glob_libcrypto.api_EVP_CIPHER_CTX_ctrl, EVP_CIPHER_CTX_ctrl);
            gate_get_libssl_function(glob_libcrypto.api_EVP_CipherInit, EVP_CipherInit);
            gate_get_libssl_function(glob_libcrypto.api_EVP_Cipher, EVP_Cipher);


            gate_get_libssl_function(glob_libcrypto.api_EVP_des_ede3_cbc, EVP_des_ede3_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_rc4, EVP_rc4);
            gate_get_libssl_function(glob_libcrypto.api_EVP_bf_cbc, EVP_bf_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_cast5_cbc, EVP_cast5_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_128_cbc, EVP_aes_128_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_128_ctr, EVP_aes_128_ctr);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_128_gcm, EVP_aes_128_gcm);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_192_cbc, EVP_aes_192_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_192_ctr, EVP_aes_192_ctr);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_256_cbc, EVP_aes_256_cbc);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_256_ctr, EVP_aes_256_ctr);
            gate_get_libssl_function(glob_libcrypto.api_EVP_aes_256_gcm, EVP_aes_256_gcm);

            gate_get_libssl_function(glob_libcrypto.api_EVP_MD_CTX_new, EVP_MD_CTX_new);
            gate_get_libssl_function(glob_libcrypto.api_EVP_MD_CTX_free, EVP_MD_CTX_free);

            gate_get_libssl_function(glob_libcrypto.api_EVP_DigestInit, EVP_DigestInit);
            gate_get_libssl_function(glob_libcrypto.api_EVP_DigestUpdate, EVP_DigestUpdate);
            gate_get_libssl_function(glob_libcrypto.api_EVP_DigestFinal, EVP_DigestFinal);
            gate_get_libssl_function(glob_libcrypto.api_EVP_DigestVerifyInit, EVP_DigestVerifyInit);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_DigestVerify, EVP_DigestVerify);
            gate_get_libssl_function(glob_libcrypto.api_EVP_DigestSignInit, EVP_DigestSignInit);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_DigestSign, EVP_DigestSign);

            gate_get_libssl_function_alt(glob_libcrypto.api_EVP_PKEY_id, EVP_PKEY_id, EVP_PKEY_get_id);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_set1_RSA, EVP_PKEY_set1_RSA);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_get1_RSA, EVP_PKEY_get1_RSA);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_set1_DSA, EVP_PKEY_set1_DSA);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_get1_DSA, EVP_PKEY_get1_DSA);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_set1_EC_KEY, EVP_PKEY_set1_EC_KEY);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_get1_EC_KEY, EVP_PKEY_get1_EC_KEY);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_new, EVP_PKEY_new);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_free, EVP_PKEY_free);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_CTX_new, EVP_PKEY_CTX_new);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_CTX_new_id, EVP_PKEY_CTX_new_id);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_CTX_free, EVP_PKEY_CTX_free);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_PKEY_new_raw_private_key, EVP_PKEY_new_raw_private_key);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_PKEY_new_raw_public_key, EVP_PKEY_new_raw_public_key);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_PKEY_get_raw_private_key, EVP_PKEY_get_raw_private_key);
            gate_get_libssl_function_optional(glob_libcrypto.api_EVP_PKEY_get_raw_public_key, EVP_PKEY_get_raw_public_key);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_derive_init, EVP_PKEY_derive_init);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_derive_set_peer, EVP_PKEY_derive_set_peer);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_derive, EVP_PKEY_derive);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_keygen_init, EVP_PKEY_keygen_init);
            gate_get_libssl_function(glob_libcrypto.api_EVP_PKEY_keygen, EVP_PKEY_keygen);

            gate_get_libssl_function(glob_libcrypto.api_DSA_SIG_new, DSA_SIG_new);
            gate_get_libssl_function(glob_libcrypto.api_DSA_SIG_free, DSA_SIG_free);
            gate_get_libssl_function(glob_libcrypto.api_DSA_SIG_get0, DSA_SIG_get0);
            gate_get_libssl_function(glob_libcrypto.api_DSA_SIG_set0, DSA_SIG_set0);
            gate_get_libssl_function(glob_libcrypto.api_DSA_do_sign, DSA_do_sign);
            gate_get_libssl_function(glob_libcrypto.api_DSA_do_verify, DSA_do_verify);
            gate_get_libssl_function(glob_libcrypto.api_DSA_new, DSA_new);
            gate_get_libssl_function(glob_libcrypto.api_DSA_free, DSA_free);
            gate_get_libssl_function(glob_libcrypto.api_DSA_get0_pqg, DSA_get0_pqg);
            gate_get_libssl_function(glob_libcrypto.api_DSA_set0_pqg, DSA_set0_pqg);
            gate_get_libssl_function(glob_libcrypto.api_DSA_get0_key, DSA_get0_key);
            gate_get_libssl_function(glob_libcrypto.api_DSA_set0_key, DSA_set0_key);

            gate_get_libssl_function(glob_libcrypto.api_EC_GROUP_get_curve_name, EC_GROUP_get_curve_name);
            gate_get_libssl_function(glob_libcrypto.api_EC_GROUP_get_degree, EC_GROUP_get_degree);
            gate_get_libssl_function(glob_libcrypto.api_EC_POINT_new, EC_POINT_new);
            gate_get_libssl_function(glob_libcrypto.api_EC_POINT_free, EC_POINT_free);
            gate_get_libssl_function(glob_libcrypto.api_EC_POINT_point2oct, EC_POINT_point2oct);
            gate_get_libssl_function(glob_libcrypto.api_EC_POINT_oct2point, EC_POINT_oct2point);

            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_new_by_curve_name, EC_KEY_new_by_curve_name);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_free, EC_KEY_free);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_get0_group, EC_KEY_get0_group);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_set_private_key, EC_KEY_set_private_key);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_get0_public_key, EC_KEY_get0_public_key);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_set_public_key, EC_KEY_set_public_key);
            gate_get_libssl_function(glob_libcrypto.api_EC_KEY_generate_key, EC_KEY_generate_key);


            gate_get_libssl_function(glob_libcrypto.api_BN_value_one, BN_value_one);
            gate_get_libssl_function(glob_libcrypto.api_BN_set_word, BN_set_word);
            gate_get_libssl_function(glob_libcrypto.api_BN_CTX_new, BN_CTX_new);
            gate_get_libssl_function(glob_libcrypto.api_BN_CTX_free, BN_CTX_free);
            gate_get_libssl_function(glob_libcrypto.api_BN_rand, BN_rand);
            gate_get_libssl_function(glob_libcrypto.api_BN_num_bits, BN_num_bits);
            gate_get_libssl_function(glob_libcrypto.api_BN_new, BN_new);
            gate_get_libssl_function(glob_libcrypto.api_BN_clear_free, BN_clear_free);
            gate_get_libssl_function(glob_libcrypto.api_BN_bin2bn, BN_bin2bn);
            gate_get_libssl_function(glob_libcrypto.api_BN_bn2bin, BN_bn2bin);
            gate_get_libssl_function(glob_libcrypto.api_BN_sub, BN_sub);
            gate_get_libssl_function(glob_libcrypto.api_BN_div, BN_div);
            gate_get_libssl_function(glob_libcrypto.api_BN_mod_exp, BN_mod_exp);

            gate_get_libssl_function(glob_libcrypto.api_ECDH_compute_key, ECDH_compute_key);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_SIG_new, ECDSA_SIG_new);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_SIG_free, ECDSA_SIG_free);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_SIG_get0, ECDSA_SIG_get0);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_SIG_set0, ECDSA_SIG_set0);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_do_sign, ECDSA_do_sign);
            gate_get_libssl_function(glob_libcrypto.api_ECDSA_do_verify, ECDSA_do_verify);

            gate_get_libssl_function(glob_libcrypto.api_ENGINE_load_builtin_engines, ENGINE_load_builtin_engines);
            gate_get_libssl_function(glob_libcrypto.api_ENGINE_register_all_complete, ENGINE_register_all_complete);

            gate_get_libssl_function(glob_libcrypto.api_RAND_bytes, RAND_bytes);

            if (glob_libcrypto.api_OPENSSL_init_crypto)
            {
                static uint64_t const init_flags = 0
                    /* | OPENSSL_INIT_NO_LOAD_CONFIG */
                    | OPENSSL_INIT_LOAD_CRYPTO_STRINGS
                    | OPENSSL_INIT_ADD_ALL_CIPHERS
                    | OPENSSL_INIT_ADD_ALL_DIGESTS
                    | OPENSSL_INIT_ENGINE_RDRAND
                    | OPENSSL_INIT_ENGINE_DYNAMIC
                    | OPENSSL_INIT_ENGINE_OPENSSL
                    | OPENSSL_INIT_ENGINE_CRYPTODEV
                    | OPENSSL_INIT_ENGINE_CAPI
                    | OPENSSL_INIT_ENGINE_PADLOCK
                    | OPENSSL_INIT_ENGINE_AFALG
                    | 0;
                glob_libcrypto.api_OPENSSL_init_crypto(init_flags, NULL);
            }

            ret = GATE_RESULT_OK;<--- Variable 'ret' is reassigned a value before the old one has been used.
            libcrypto_loaded = true;
        } while (0);
    }
    return ret;
}



static gate_result_t load_libssl()
{
    static volatile gate_bool_t libssl_loaded = false;

    gate_result_t ret = GATE_RESULT_OK;

    if (!libssl_loaded)
    {
        ret = GATE_RESULT_FAILED;<--- Variable 'ret' is reassigned a value before the old one has been used.<--- Variable 'ret' is reassigned a value before the old one has been used.
        do
        {
            /* ssl/tls functions: */

            gate_get_libssl_function(glob_libssl.api_OPENSSL_init_ssl, OPENSSL_init_ssl);<--- Variable 'ret' is reassigned a value before the old one has been used.
            /*gate_get_libssl_function(glob_libssl.api_SSL_load_error_strings, SSL_load_error_strings);*/
            /*gate_get_libssl_function(glob_libssl.api_OPENSSL_add_all_algorithms_noconf, OPENSSL_add_all_algorithms_noconf);*/

            gate_get_libssl_function(glob_libssl.api_SSL_CTX_new, SSL_CTX_new);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_free, SSL_CTX_free);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_ctrl, SSL_CTX_ctrl);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_use_certificate, SSL_CTX_use_certificate);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_use_PrivateKey, SSL_CTX_use_PrivateKey);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_set_cipher_list, SSL_CTX_set_cipher_list);
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_use_RSAPrivateKey, SSL_CTX_use_RSAPrivateKey);
            /*#ifndef GATE_NET_SSL_API_OPENSSL*/
            gate_get_libssl_function(glob_libssl.api_SSL_CTX_set_alpn_select_cb, SSL_CTX_set_alpn_select_cb);
            /*#endif*/

            gate_get_libssl_function(glob_libssl.api_TLS_client_method, TLS_client_method);
#if defined(GATE_NET_SSL_OLDPROTOCOLS)
            gate_get_libssl_function(glob_libssl.api_TLSv1_client_method, TLSv1_client_method);
            gate_get_libssl_function(glob_libssl.api_TLSv1_1_client_method, TLSv1_1_client_method);
            gate_get_libssl_function(glob_libssl.api_TLSv1_2_client_method, TLSv1_2_client_method);
#endif
            gate_get_libssl_function_optional(glob_libssl.api_TLSv1_3_client_method, TLS_client_method);
            gate_get_libssl_function_optional(glob_libssl.api_SSLv3_client_method, SSLv23_client_method);
            if (NULL == glob_libssl.api_TLSv1_3_client_method)
            {
                glob_libssl.api_TLSv1_3_client_method = glob_libssl.api_TLS_client_method;
            }
            if (NULL == glob_libssl.api_SSLv3_client_method)
            {
                glob_libssl.api_SSLv3_client_method = glob_libssl.api_TLS_client_method;
            }

            gate_get_libssl_function(glob_libssl.api_TLS_server_method, TLS_server_method);
#if defined(GATE_NET_SSL_OLDPROTOCOLS)
            gate_get_libssl_function(glob_libssl.api_TLSv1_server_method, TLSv1_server_method);
            gate_get_libssl_function(glob_libssl.api_TLSv1_1_server_method, TLSv1_1_server_method);
            gate_get_libssl_function(glob_libssl.api_TLSv1_2_server_method, TLSv1_2_server_method);
#endif
            gate_get_libssl_function(glob_libssl.api_TLSv1_3_server_method, TLS_server_method);
            gate_get_libssl_function_optional(glob_libssl.api_SSLv3_server_method, SSLv23_server_method);
            if (NULL == glob_libssl.api_TLSv1_3_server_method)
            {
                glob_libssl.api_TLSv1_3_server_method = glob_libssl.api_TLS_server_method;
            }
            if (NULL == glob_libssl.api_SSLv3_server_method)
            {
                glob_libssl.api_SSLv3_server_method = glob_libssl.api_TLS_server_method;
            }

            gate_get_libssl_function(glob_libssl.api_SSL_new, SSL_new);
            gate_get_libssl_function(glob_libssl.api_SSL_ctrl, SSL_ctrl);
            gate_get_libssl_function(glob_libssl.api_SSL_set_fd, SSL_set_fd);
            gate_get_libssl_function(glob_libssl.api_SSL_set_bio, SSL_set_bio);
            gate_get_libssl_function(glob_libssl.api_SSL_accept, SSL_accept);
            gate_get_libssl_function(glob_libssl.api_SSL_connect, SSL_connect);
            gate_get_libssl_function(glob_libssl.api_SSL_read, SSL_read);
            gate_get_libssl_function(glob_libssl.api_SSL_write, SSL_write);
            gate_get_libssl_function(glob_libssl.api_SSL_get_error, SSL_get_error);
            gate_get_libssl_function(glob_libssl.api_SSL_pending, SSL_pending);
            gate_get_libssl_function(glob_libssl.api_SSL_set_connect_state, SSL_set_connect_state);
            gate_get_libssl_function(glob_libssl.api_SSL_set_accept_state, SSL_set_accept_state);
#ifdef GATE_NET_SSL_API_OPENSSL
            gate_get_libssl_function(glob_libssl.api_SSL_state, SSL_get_state);
#else
            /* libreSSL uses another function name and implements "SSL_get_state" as a macro */
            gate_get_libssl_function(glob_libssl.api_SSL_state, SSL_state);
#endif
            gate_get_libssl_function(glob_libssl.api_SSL_do_handshake, SSL_do_handshake);
            gate_get_libssl_function(glob_libssl.api_SSL_get_verify_result, SSL_get_verify_result);
            gate_get_libssl_function(glob_libssl.api_SSL_shutdown, SSL_shutdown);
            gate_get_libssl_function(glob_libssl.api_SSL_free, SSL_free);
            gate_get_libssl_function(glob_libssl.api_SSL_select_next_proto, SSL_select_next_proto);
            /*#ifndef GATE_NET_SSL_API_OPENSSL*/
            gate_get_libssl_function(glob_libssl.api_SSL_get0_alpn_selected, SSL_get0_alpn_selected);
            /*#endif*/

            gate_get_libssl_function(glob_libssl.api_SSL_get_peer_certificate, SSL_get_peer_certificate);
            gate_get_libssl_function(glob_libssl.api_SSL_get_certificate, SSL_get_certificate);

            gate_get_libssl_function(glob_libssl.api_BIO_new_ssl_connect, BIO_new_ssl_connect);

            ret = GATE_RESULT_OK;<--- Variable 'ret' is reassigned a value before the old one has been used.
            libssl_loaded = true;
        } while (0);
    }

    return ret;
}



gate_result_t gate_libcrypto_load_api(gate_libcrypto_api_t* ptr_api_table)
{
    gate_result_t result = load_libcrypto();
    if (GATE_SUCCEEDED(result) && ptr_api_table)
    {
        *ptr_api_table = glob_libcrypto;
    }
    return result;
}


gate_result_t gate_libssl_load_api(gate_libssl_api_t* ptr_api_table)
{
    gate_result_t result = gate_libcrypto_load_api(NULL);
    if (GATE_SUCCEEDED(result))
    {
        result = load_libssl();
        if (GATE_SUCCEEDED(result) && ptr_api_table)
        {
            *ptr_api_table = glob_libssl;
        }
    }
    return result;
}

#if defined(GATE_NET_SSL_SHAREDLIB)

/* CRYPTO FUNCTIONS */

int FIPS_mode(void) { return 0; }

const BIO_METHOD* BIO_s_mem(void) { return glob_libcrypto.api_BIO_s_mem(); }
BIO* BIO_new_mem_buf(void const* buf, int len) { return glob_libcrypto.api_BIO_new_mem_buf(buf, len); }
BIO* BIO_new(const BIO_METHOD* type) { return glob_libcrypto.api_BIO_new(type); }
BIO* BIO_new_file(const char* filename, const char* mode) { return glob_libcrypto.api_BIO_new_file(filename, mode); }
long BIO_ctrl(BIO* bp, int cmd, long larg, void* parg) { return glob_libcrypto.api_BIO_ctrl(bp, cmd, larg, parg); }
void BIO_free_all(BIO* a) { glob_libcrypto.api_BIO_free_all(a); }
int BIO_free(BIO* a) { return glob_libcrypto.api_BIO_free(a); }
int BIO_read(BIO* b, void* data, int len) { return glob_libcrypto.api_BIO_read(b, data, len); }
int BIO_test_flags(const BIO* b, int flags) { return glob_libcrypto.api_BIO_test_flags(b, flags); }
int BIO_write(BIO* b, const void* data, int len) { return glob_libcrypto.api_BIO_write(b, data, len); }
int BIO_new_bio_pair(BIO** bio1, size_t writebuf1, BIO** bio2, size_t writebuf2) { return glob_libcrypto.api_BIO_new_bio_pair(bio1, writebuf1, bio2, writebuf2); }

HMAC_CTX* HMAC_CTX_new(void) { return glob_libcrypto.api_HMAC_CTX_new(); }
void HMAC_CTX_free(HMAC_CTX* ctx) { glob_libcrypto.api_HMAC_CTX_free(ctx); }
int HMAC_Init_ex(HMAC_CTX* ctx, const void* key, int key_len, const EVP_MD* md, ENGINE* impl) { return glob_libcrypto.api_HMAC_Init_ex(ctx, key, key_len, md, impl); }
int HMAC_Update(HMAC_CTX* ctx, const unsigned char* data, size_t len) { return glob_libcrypto.api_HMAC_Update(ctx, data, len); }
int HMAC_Final(HMAC_CTX* ctx, unsigned char* md, unsigned int* len) { return glob_libcrypto.api_HMAC_Final(ctx, md, len); }
const EVP_MD* EVP_md5(void) { return glob_libcrypto.api_EVP_md5(); }
const EVP_MD* EVP_md5_sha1(void) { return glob_libcrypto.api_EVP_md5_sha1(); }
const EVP_MD* EVP_sha1(void) { return glob_libcrypto.api_EVP_sha1(); }
const EVP_MD* EVP_sha256(void) { return glob_libcrypto.api_EVP_sha256(); }
const EVP_MD* EVP_sha512(void) { return glob_libcrypto.api_EVP_sha512(); }
const EVP_MD* EVP_ripemd160(void) { return glob_libcrypto.api_EVP_ripemd160(); }
const EVP_MD* EVP_get_digestbyname(const char* name) { return glob_libcrypto.api_EVP_get_digestbyname(name); }


EVP_CIPHER_CTX* EVP_CIPHER_CTX_new(void) { return glob_libcrypto.api_EVP_CIPHER_CTX_new(); }
void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX* ctx) { glob_libcrypto.api_EVP_CIPHER_CTX_free(ctx); }
int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX* ctx, int cmd, int p1, void* p2) { return glob_libcrypto.api_EVP_CIPHER_CTX_ctrl(ctx, cmd, p1, p2); }
int EVP_CipherInit(EVP_CIPHER_CTX* ctx, const EVP_CIPHER* type, const unsigned char* key, const unsigned char* iv, int enc) { return glob_libcrypto.api_EVP_CipherInit(ctx, type, key, iv, enc); }
int EVP_Cipher(EVP_CIPHER_CTX* c, unsigned char* out, const unsigned char* in, unsigned int inl) { return glob_libcrypto.api_EVP_Cipher(c, out, in, inl); }

const EVP_CIPHER* EVP_des_ede3_cbc(void) { return glob_libcrypto.api_EVP_des_ede3_cbc(); }
const EVP_CIPHER* EVP_rc4(void) { return glob_libcrypto.api_EVP_rc4(); }
const EVP_CIPHER* EVP_bf_cbc(void) { return glob_libcrypto.api_EVP_bf_cbc(); }
const EVP_CIPHER* EVP_cast5_cbc(void) { return glob_libcrypto.api_EVP_cast5_cbc(); }
const EVP_CIPHER* EVP_aes_128_cbc(void) { return glob_libcrypto.api_EVP_aes_128_cbc(); }
const EVP_CIPHER* EVP_aes_128_ctr(void) { return glob_libcrypto.api_EVP_aes_128_ctr(); }
const EVP_CIPHER* EVP_aes_128_gcm(void) { return glob_libcrypto.api_EVP_aes_128_gcm(); }
const EVP_CIPHER* EVP_aes_192_cbc(void) { return glob_libcrypto.api_EVP_aes_192_cbc(); }
const EVP_CIPHER* EVP_aes_192_ctr(void) { return glob_libcrypto.api_EVP_aes_192_ctr(); }
const EVP_CIPHER* EVP_aes_256_cbc(void) { return glob_libcrypto.api_EVP_aes_256_cbc(); }
const EVP_CIPHER* EVP_aes_256_ctr(void) { return glob_libcrypto.api_EVP_aes_256_ctr(); }
const EVP_CIPHER* EVP_aes_256_gcm(void) { return glob_libcrypto.api_EVP_aes_256_gcm(); }

EVP_MD_CTX* EVP_MD_CTX_new(void) { return glob_libcrypto.api_EVP_MD_CTX_new(); }
void EVP_MD_CTX_free(EVP_MD_CTX* ctx) { glob_libcrypto.api_EVP_MD_CTX_free(ctx); }

int EVP_DigestInit(EVP_MD_CTX* ctx, const EVP_MD* type) { return glob_libcrypto.api_EVP_DigestInit(ctx, type); }
int EVP_DigestUpdate(EVP_MD_CTX* ctx, const void* d, size_t cnt) { return glob_libcrypto.api_EVP_DigestUpdate(ctx, d, cnt); }
int EVP_DigestFinal(EVP_MD_CTX* ctx, unsigned char* md, unsigned int* s) { return glob_libcrypto.api_EVP_DigestFinal(ctx, md, s); }
int EVP_DigestVerifyInit(EVP_MD_CTX* ctx, EVP_PKEY_CTX** pctx, const EVP_MD* type, ENGINE* e, EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_DigestVerifyInit(ctx, pctx, type, e, pkey); }
int EVP_DigestSignInit(EVP_MD_CTX* ctx, EVP_PKEY_CTX** pctx, const EVP_MD* type, ENGINE* e, EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_DigestSignInit(ctx, pctx, type, e, pkey); }
int EVP_DigestVerify(EVP_MD_CTX* ctx, const unsigned char* sigret, size_t siglen, const unsigned char* tbs, size_t tbslen)
{
    if (!glob_libcrypto.api_EVP_DigestVerify) return 0;
    return glob_libcrypto.api_EVP_DigestVerify(ctx, sigret, siglen, tbs, tbslen);
}
int EVP_DigestSign(EVP_MD_CTX* ctx, unsigned char* sigret, size_t* siglen, const unsigned char* tbs, size_t tbslen)
{
    if (!glob_libcrypto.api_EVP_DigestSign) return 0;
    return glob_libcrypto.api_EVP_DigestSign(ctx, sigret, siglen, tbs, tbslen);
}

int EVP_PKEY_id(const EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_PKEY_id(pkey); }
int EVP_PKEY_set1_RSA(EVP_PKEY* pkey, RSA* key) { return glob_libcrypto.api_EVP_PKEY_set1_RSA(pkey, key); }
RSA* EVP_PKEY_get1_RSA(EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_PKEY_get1_RSA(pkey); }
int EVP_PKEY_set1_DSA(EVP_PKEY* pkey, DSA* key) { return glob_libcrypto.api_EVP_PKEY_set1_DSA(pkey, key); }
DSA* EVP_PKEY_get1_DSA(EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_PKEY_get1_DSA(pkey); }
int EVP_PKEY_set1_EC_KEY(EVP_PKEY* pkey, EC_KEY* key) { return glob_libcrypto.api_EVP_PKEY_set1_EC_KEY(pkey, key); }
EC_KEY* EVP_PKEY_get1_EC_KEY(EVP_PKEY* pkey) { return glob_libcrypto.api_EVP_PKEY_get1_EC_KEY(pkey); }
EVP_PKEY* EVP_PKEY_new(void) { return glob_libcrypto.api_EVP_PKEY_new(); }
void EVP_PKEY_free(EVP_PKEY* key) { glob_libcrypto.api_EVP_PKEY_free(key); }
EVP_PKEY_CTX* EVP_PKEY_CTX_new(EVP_PKEY* pkey, ENGINE* e) { return glob_libcrypto.api_EVP_PKEY_CTX_new(pkey, e); }
EVP_PKEY_CTX* EVP_PKEY_CTX_new_id(int id, ENGINE* e) { return glob_libcrypto.api_EVP_PKEY_CTX_new_id(id, e); }
void EVP_PKEY_CTX_free(EVP_PKEY_CTX* ctx) { glob_libcrypto.api_EVP_PKEY_CTX_free(ctx); }
int EVP_PKEY_derive_init(EVP_PKEY_CTX* ctx) { return glob_libcrypto.api_EVP_PKEY_derive_init(ctx); }
int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX* ctx, EVP_PKEY* peer) { return glob_libcrypto.api_EVP_PKEY_derive_set_peer(ctx, peer); }
int EVP_PKEY_derive(EVP_PKEY_CTX* ctx, unsigned char* key, size_t* keylen) { return glob_libcrypto.api_EVP_PKEY_derive(ctx, key, keylen); }
int EVP_PKEY_keygen_init(EVP_PKEY_CTX* ctx) { return glob_libcrypto.api_EVP_PKEY_keygen_init(ctx); }
int EVP_PKEY_keygen(EVP_PKEY_CTX* ctx, EVP_PKEY** ppkey) { return glob_libcrypto.api_EVP_PKEY_keygen(ctx, ppkey); }
EVP_PKEY* EVP_PKEY_new_raw_private_key(int type, ENGINE* e, const unsigned char* key, size_t keylen)
{
    if (!glob_libcrypto.api_EVP_PKEY_new_raw_private_key) return NULL;
    return glob_libcrypto.api_EVP_PKEY_new_raw_private_key(type, e, key, keylen);
}
EVP_PKEY* EVP_PKEY_new_raw_public_key(int type, ENGINE* e, const unsigned char* key, size_t keylen)
{
    if (!glob_libcrypto.api_EVP_PKEY_new_raw_public_key) return NULL;
    return glob_libcrypto.api_EVP_PKEY_new_raw_public_key(type, e, key, keylen);
}
int EVP_PKEY_get_raw_private_key(const EVP_PKEY* pkey, unsigned char* priv, size_t* len)
{
    if (!glob_libcrypto.api_EVP_PKEY_get_raw_private_key) return 0;
    return glob_libcrypto.api_EVP_PKEY_get_raw_private_key(pkey, priv, len);
}
int EVP_PKEY_get_raw_public_key(const EVP_PKEY* pkey, unsigned char* pub, size_t* len)
{
    if (!glob_libcrypto.api_EVP_PKEY_get_raw_public_key) return 0;
    return glob_libcrypto.api_EVP_PKEY_get_raw_public_key(pkey, pub, len);
}


RSA* RSA_new(void) { return glob_libcrypto.api_RSA_new(); }
int RSA_size(const RSA* rsa) { return glob_libcrypto.api_RSA_size(rsa); }
int RSA_set0_key(RSA* r, BIGNUM* n, BIGNUM* e, BIGNUM* d) { return glob_libcrypto.api_RSA_set0_key(r, n, e, d); }
int RSA_set0_factors(RSA* r, BIGNUM* p, BIGNUM* q) { return glob_libcrypto.api_RSA_set0_factors(r, p, q); }
int RSA_set0_crt_params(RSA* r, BIGNUM* dmp1, BIGNUM* dmq1, BIGNUM* iqmp) { return glob_libcrypto.api_RSA_set0_crt_params(r, dmp1, dmq1, iqmp); }
void RSA_get0_key(const RSA* r, const BIGNUM** n, const BIGNUM** e, const BIGNUM** d) { glob_libcrypto.api_RSA_get0_key(r, n, e, d); }
void RSA_get0_factors(const RSA* r, const BIGNUM** p, const BIGNUM** q) { glob_libcrypto.api_RSA_get0_factors(r, p, q); }
int RSA_sign(int type, const unsigned char* m, unsigned int m_len, unsigned char* sigret, unsigned int* siglen, RSA* rsa) { return glob_libcrypto.api_RSA_sign(type, m, m_len, sigret, siglen, rsa); }
int RSA_verify(int type, const unsigned char* m, unsigned int m_len, unsigned char* sigbuf, unsigned int siglen, RSA* rsa) { return glob_libcrypto.api_RSA_verify(type, m, m_len, sigbuf, siglen, rsa); }
void RSA_free(RSA* r) { glob_libcrypto.api_RSA_free(r); }

DSA_SIG* DSA_SIG_new(void) { return glob_libcrypto.api_DSA_SIG_new(); }
void DSA_SIG_free(DSA_SIG* a) { glob_libcrypto.api_DSA_SIG_free(a); }
void DSA_SIG_get0(const DSA_SIG* sig, const BIGNUM** pr, const BIGNUM** ps) { glob_libcrypto.api_DSA_SIG_get0(sig, pr, ps); }
int DSA_SIG_set0(DSA_SIG* sig, BIGNUM* r, BIGNUM* s) { return glob_libcrypto.api_DSA_SIG_set0(sig, r, s); }
DSA_SIG* DSA_do_sign(const unsigned char* dgst, int dlen, DSA* dsa) { return glob_libcrypto.api_DSA_do_sign(dgst, dlen, dsa); }
int DSA_do_verify(const unsigned char* dgst, int dgst_len, DSA_SIG* sig, DSA* dsa) { return glob_libcrypto.api_DSA_do_verify(dgst, dgst_len, sig, dsa); }
DSA* DSA_new(void) { return glob_libcrypto.api_DSA_new(); }
void DSA_free(DSA* dsa) { glob_libcrypto.api_DSA_free(dsa); }
void DSA_get0_pqg(const DSA* d, const BIGNUM** p, const BIGNUM** q, const BIGNUM** g) { glob_libcrypto.api_DSA_get0_pqg(d, p, q, g); }
int DSA_set0_pqg(DSA* d, BIGNUM* p, BIGNUM* q, BIGNUM* g) { return glob_libcrypto.api_DSA_set0_pqg(d, p, q, g); }
void DSA_get0_key(const DSA* d, const BIGNUM** pub_key, const BIGNUM** priv_key) { glob_libcrypto.api_DSA_get0_key(d, pub_key, priv_key); }
int DSA_set0_key(DSA* d, BIGNUM* pub_key, BIGNUM* priv_key) { return glob_libcrypto.api_DSA_set0_key(d, pub_key, priv_key); }

int EC_GROUP_get_curve_name(const EC_GROUP* group) { return glob_libcrypto.api_EC_GROUP_get_curve_name(group); }
int EC_GROUP_get_degree(const EC_GROUP* group) { return glob_libcrypto.api_EC_GROUP_get_degree(group); }
EC_POINT* EC_POINT_new(const EC_GROUP* group) { return glob_libcrypto.api_EC_POINT_new(group); }
void EC_POINT_free(EC_POINT* point) { glob_libcrypto.api_EC_POINT_free(point); }
size_t EC_POINT_point2oct(const EC_GROUP* group, const EC_POINT* p, point_conversion_form_t form, unsigned char* buf, size_t len, BN_CTX* ctx) { return glob_libcrypto.api_EC_POINT_point2oct(group, p, form, buf, len, ctx); }
int EC_POINT_oct2point(const EC_GROUP* group, EC_POINT* p, const unsigned char* buf, size_t len, BN_CTX* ctx) { return glob_libcrypto.api_EC_POINT_oct2point(group, p, buf, len, ctx); }

EC_KEY* EC_KEY_new_by_curve_name(int nid) { return glob_libcrypto.api_EC_KEY_new_by_curve_name(nid); }
void EC_KEY_free(EC_KEY* key) { glob_libcrypto.api_EC_KEY_free(key); }
const EC_GROUP* EC_KEY_get0_group(const EC_KEY* key) { return glob_libcrypto.api_EC_KEY_get0_group(key); }
int EC_KEY_set_private_key(EC_KEY* key, const BIGNUM* priv_key) { return glob_libcrypto.api_EC_KEY_set_private_key(key, priv_key); }
const EC_POINT* EC_KEY_get0_public_key(const EC_KEY* key) { return glob_libcrypto.api_EC_KEY_get0_public_key(key); }
int EC_KEY_set_public_key(EC_KEY* key, const EC_POINT* pub) { return glob_libcrypto.api_EC_KEY_set_public_key(key, pub); }
int EC_KEY_generate_key(EC_KEY* key) { return glob_libcrypto.api_EC_KEY_generate_key(key); }

const BIGNUM* BN_value_one(void) { return glob_libcrypto.api_BN_value_one(); }
int BN_set_word(BIGNUM* a, BN_ULONG w) { return glob_libcrypto.api_BN_set_word(a, w); }
BN_CTX* BN_CTX_new(void) { return glob_libcrypto.api_BN_CTX_new(); }
void BN_CTX_free(BN_CTX* c) { glob_libcrypto.api_BN_CTX_free(c); }
int BN_rand(BIGNUM* rnd, int bits, int top, int bottom) { return glob_libcrypto.api_BN_rand(rnd, bits, top, bottom); }
int BN_num_bits(const BIGNUM* a) { return glob_libcrypto.api_BN_num_bits(a); }
BIGNUM* BN_new(void) { return glob_libcrypto.api_BN_new(); }
void BN_clear_free(BIGNUM* a) { glob_libcrypto.api_BN_clear_free(a); }
BIGNUM* BN_bin2bn(const unsigned char* s, int len, BIGNUM* ret) { return glob_libcrypto.api_BN_bin2bn(s, len, ret); }
int BN_bn2bin(const BIGNUM* a, unsigned char* to) { return glob_libcrypto.api_BN_bn2bin(a, to); }
int BN_sub(BIGNUM* r, const BIGNUM* a, const BIGNUM* b) { return glob_libcrypto.api_BN_sub(r, a, b); }
int BN_div(BIGNUM* dv, BIGNUM* rem, const BIGNUM* a, const BIGNUM* d, BN_CTX* ctx) { return glob_libcrypto.api_BN_div(dv, rem, a, d, ctx); }
int BN_mod_exp(BIGNUM* r, const BIGNUM* a, const BIGNUM* p, const BIGNUM* m, BN_CTX* ctx) { return glob_libcrypto.api_BN_mod_exp(r, a, p, m, ctx); }

int ECDH_compute_key(void* out, size_t outlen, const EC_POINT* public_key, const EC_KEY* ecdh, void* (*KDF)(const void* in, size_t inlen, void* out, size_t* outlen)) { return glob_libcrypto.api_ECDH_compute_key(out, outlen, public_key, ecdh, KDF); }
ECDSA_SIG* ECDSA_SIG_new(void) { return glob_libcrypto.api_ECDSA_SIG_new(); }
void ECDSA_SIG_free(ECDSA_SIG* sig) { glob_libcrypto.api_ECDSA_SIG_free(sig); }
void ECDSA_SIG_get0(const ECDSA_SIG* sig, const BIGNUM** pr, const BIGNUM** ps) { glob_libcrypto.api_ECDSA_SIG_get0(sig, pr, ps); }
int ECDSA_SIG_set0(ECDSA_SIG* sig, BIGNUM* r, BIGNUM* s) { return glob_libcrypto.api_ECDSA_SIG_set0(sig, r, s); }
ECDSA_SIG* ECDSA_do_sign(const unsigned char* dgst, int dgst_len, EC_KEY* eckey) { return glob_libcrypto.api_ECDSA_do_sign(dgst, dgst_len, eckey); }
int ECDSA_do_verify(const unsigned char* dgst, int dgst_len, const ECDSA_SIG* sig, EC_KEY* eckey) { return glob_libcrypto.api_ECDSA_do_verify(dgst, dgst_len, sig, eckey); }

RSA* PEM_read_bio_RSAPrivateKey(BIO* bp, RSA** x, pem_password_cb* cb, void* u) { return glob_libcrypto.api_PEM_read_bio_RSAPrivateKey(bp, x, cb, u); }
DSA* PEM_read_bio_DSAPrivateKey(BIO* bp, DSA** x, pem_password_cb* cb, void* u) { return glob_libcrypto.api_PEM_read_bio_DSAPrivateKey(bp, x, cb, u); }
EC_KEY* PEM_read_bio_ECPrivateKey(BIO* out, EC_KEY** x, pem_password_cb* cb, void* u) { return glob_libcrypto.api_PEM_read_bio_ECPrivateKey(out, x, cb, u); }
EVP_PKEY* PEM_read_bio_PrivateKey(BIO* bp, EVP_PKEY** x, pem_password_cb* cb, void* u) { return glob_libcrypto.api_PEM_read_bio_PrivateKey(bp, x, cb, u); }

void ENGINE_load_builtin_engines(void) { glob_libcrypto.api_ENGINE_load_builtin_engines(); }
int ENGINE_register_all_complete(void) { return glob_libcrypto.api_ENGINE_register_all_complete(); }

int RAND_bytes(unsigned char* buf, int num) { return glob_libcrypto.api_RAND_bytes(buf, num); }

#endif