TES">NOTES</a></li>
  <li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
  <li><a href="#COPYRIGHT">COPYRIGHT</a></li>
</ul>

<h1 id="NAME">NAME</h1>

<p>BIO_f_null - null filter</p>

<h1 id="SYNOPSIS">SYNOPSIS</h1>

<pre><code> #include &lt;openssl/bio.h&gt;

 const BIO_METHOD *BIO_f_null(void);</code></pre>

<h1 id="DESCRIPTION">DESCRIPTION</h1>

<p>BIO_f_null() returns the null filter BIO method. This is a filter BIO that does nothing.</p>

<p>All requests to a null filter BIO are passed through to the 