() checks whether a handler has been set for a client extension of type <b>ext_type</b> using SSL_CTX_add_client_custom_ext().</p>

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

<p>Returns 1 if a handler has been set, 0 otherwise.</p>

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

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

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

<p>Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.</p>

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