SSL_CTX_get_ex_data, SSL_CTX_set_ex_data, SSL_get_ex_data, SSL_set_ex_data - Store and retrieve extra data from the SSL_CTX, SSL or SSL_SESSION
#include <openssl/ssl.h>
void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx);
int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg);
void *SSL_get_ex_data(const SSL *s, int idx);
int SSL_set_ex_data(SSL *s, int idx, void *arg);
SSL*_set_ex_data() functions can be used to store arbitrary user data into the SSL_CTX, or SSL object. The user must supply a unique index which they can subsequently use to retrieve the data using SSL*_get_ex_data().
For more detailed information see CRYPTO_get_ex_data(3) and CRYPTO_set_ex_data(3) which implement these functions and CRYPTO_get_ex_new_index(3) for generating a unique index.
The SSL*_set_ex_data() functions return 1 if the item is successfully stored and 0 if it is not. The SSL*_get_ex_data() functions return the ex_data pointer if successful, otherwise NULL.
CRYPTO_get_ex_data(3), CRYPTO_set_ex_data(3), CRYPTO_get_ex_new_index(3)
Copyright 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 https://www.openssl.org/source/license.html.