act as clients; otherwise the configured <b>name</b> will be ignored.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>SSL_CTX_set_tlsext_servername_callback() and SSL_CTX_set_tlsext_servername_arg() both always return 1 indicating success. SSL_set_tlsext_host_name() returns 1 on success, 0 in case of error.</p>

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

<p><a href="../man7/ssl.html">ssl(7)</a>, <a href="../man3/SSL_CTX_set_alpn_select_cb.html">SSL_CTX_set_alpn_select_cb(3)</a>, <a href="../man3/SSL_get0_alpn_sele