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<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.ssl__stream.native_handle"></a><a class="link" href="native_handle.html" title="ssl::stream::native_handle">ssl::stream::native_handle</a>
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<p>
          <a class="indexterm" name="idp200041296"></a> 
Get the underlying implementation in the native
          type.
        </p>
<pre class="programlisting"><span class="identifier">native_handle_type</span> <span class="identifier">native_handle</span><span class="special">();</span>
</pre>
<p>
          This function may be used to obtain the underlying implementation of the
          context. This is intended to allow access to context functionality that
          is not otherwise provided.
        </p>
<h6>
<a name="boost_asio.reference.ssl__stream.native_handle.h0"></a>
          <span class="phrase"><a name="boost_asio.reference.ssl__stream.native_handle.example"></a></span><a class="link" href="native_handle.html#boost_asio.reference.ssl__stream.native_handle.example">Example</a>
        </h6>
<p>
          The <code class="computeroutput"><span class="identifier">native_handle</span><span class="special">()</span></code>
          function returns a pointer of type <code class="computeroutput"><span class="identifier">SSL</span><span class="special">*</span></code> that is suitable for passing to functions
          such as <code class="computeroutput"><span class="identifier">SSL_get_verify_result</span></code>
          and <code class="computeroutput"><span class="identifier">SSL_get_peer_certificate</span><span class="special">:</span></code>
        </p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ssl</span><span class="special">::</span><span class="identifier">stream</span><span class="special">&lt;</span><span class="identifier">asio</span><span class="special">:</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span><span class="special">&gt;</span> <span class="identifier">sock</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">,</span> <span class="identifier">ctx</span><span class="special">);</span>

<span class="comment">// ... establish connection and perform handshake ...</span>

<span class="keyword">if</span> <span class="special">(</span><span class="identifier">X509</span><span class="special">*</span> <span class="identifier">cert</span> <span class="special">=</span> <span class="identifier">SSL_get_peer_certificate</span><span class="special">(</span><span class="identifier">sock</span><span class="special">.</span><span class="identifier">native_handle</span><span class="special">()))</span>
<span class="special">{</span>
  <span class="keyword">if</span> <span class="special">(</span><span class="identifier">SSL_get_verify_result</span><span class="special">(</span><span class="identifier">sock</span><span class="special">.</span><span class="identifier">native_handle</span><span class="special">())</span> <span class="special">==</span> <span class="identifier">X509_V_OK</span><span class="special">)</span>
  <span class="special">{</span>
    <span class="comment">// ...</span>
  <span class="special">}</span>
<span class="special">}</span>
</pre>
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