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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>SSL_CTX_set_ex_data</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <ul id="index"> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#RETURN-VALUES">RETURN VALUES</a></li> <li><a href="#SEE-ALSO">SEE ALSO</a></li> <li><a href="#COPYRIGHT">COPYRIGHT</a></li> </ul> <h1 id="NAME">NAME</h1> <p>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</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #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);</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>SSL*_set_ex_data() functions can be used to store arbitrary user data into the <b>SSL_CTX</b>, or <b>SSL</b> object. The user must supply a unique index which they can subsequently use to retrieve the data using SSL*_get_ex_data().</p> <p>For more detailed information see <a href="../man3/CRYPTO_get_ex_data.html">CRYPTO_get_ex_data(3)</a> and <a href="../man3/CRYPTO_set_ex_data.html">CRYPTO_set_ex_data(3)</a> which implement these functions and <a href="../man3/CRYPTO_get_ex_new_index.html">CRYPTO_get_ex_new_index(3)</a> for generating a unique index.</p> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>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.</p> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man3/CRYPTO_get_ex_data.html">CRYPTO_get_ex_data(3)</a>, <a href="../man3/CRYPTO_set_ex_data.html">CRYPTO_set_ex_data(3)</a>, <a href="../man3/CRYPTO_get_ex_new_index.html">CRYPTO_get_ex_new_index(3)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.</p> <p>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 <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p> </body> </html>