ref="../man7/ossl-guide-libraries-introduction.html">ossl-guide-libraries-introduction(7)</a> to learn about <b>OSSL_LIB_CTX</b>). We pass as an argument the return value of the function <a href="../man3/TLS_client_method.html">TLS_client_method(3)</a>. You should use this method whenever you are writing a TLS client. This method will automatically use TLS version negotiation to select the highest version of the protocol that is mutually supported by both the client and the server.</p>

<pre><code>/*
 * Cre