or occurs then 2 is returned.</p>

<p>All other functions return 1 for success and 0 for failure.</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<p><a href="../man7/ssl.html">ssl(7)</a>, <a href="../man3/SSL_CTX_add_extra_chain_cert.html">SSL_CTX_add_extra_chain_cert(3)</a></p>

<h1 id="HISTORY">HISTORY</h1>

<p>These functions were added in OpenSSL 1.0.2.</p>

<h1 id="COPYRIGHT">COPYRIGHT</h1>

<p>Copyright 2013-2021 The OpenSSL Project Authors. All Rights Reserved.</p>

<p>Licensed under the Apache License 2.0 (th