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<title>SSL_CTX_set_ssl_version</title>
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<ul id="index">
  <li><a href="#NAME">NAME</a></li>
  <li><a href="#SYNOPSIS">SYNOPSIS</a></li>
  <li><a href="#DESCRIPTION">DESCRIPTION</a></li>
  <li><a href="#NOTES">NOTES</a></li>
  <li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
  <li><a href="#SEE-ALSO">SEE ALSO</a></li>
  <li><a href="#COPYRIGHT">COPYRIGHT</a></li>
</ul>

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

<p>SSL_CTX_set_ssl_version, SSL_set_ssl_method, SSL_get_ssl_method - choose a new TLS/SSL method</p>

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

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

 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *method);
 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
 const SSL_METHOD *SSL_get_ssl_method(const SSL *ssl);</code></pre>

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

<p>SSL_CTX_set_ssl_version() sets a new default TLS/SSL <b>method</b> for SSL objects newly created from this <b>ctx</b>. SSL objects already created with <a href="../man3/SSL_new.html">SSL_new(3)</a> are not affected, except when <a href="../man3/SSL_clear.html">SSL_clear(3)</a> is being called.</p>

<p>SSL_set_ssl_method() sets a new TLS/SSL <b>method</b> for a particular <b>ssl</b> object. It may be reset, when SSL_clear() is called.</p>

<p>SSL_get_ssl_method() returns a function pointer to the TLS/SSL method set in <b>ssl</b>.</p>

<h1 id="NOTES">NOTES</h1>

<p>The available <b>method</b> choices are described in <a href="../man3/SSL_CTX_new.html">SSL_CTX_new(3)</a>.</p>

<p>When <a href="../man3/SSL_clear.html">SSL_clear(3)</a> is called and no session is connected to an SSL object, the method of the SSL object is reset to the method currently set in the corresponding SSL_CTX object.</p>

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

<p>The following return values can occur for SSL_CTX_set_ssl_version() and SSL_set_ssl_method():</p>

<dl>

<dt id="pod0">0</dt>
<dd>

<p>The new choice failed, check the error stack to find out the reason.</p>

</dd>
<dt id="pod1">1</dt>
<dd>

<p>The operation succeeded.</p>

</dd>
</dl>

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

<p><a href="../man3/SSL_CTX_new.html">SSL_CTX_new(3)</a>, <a href="../man3/SSL_new.html">SSL_new(3)</a>, <a href="../man3/SSL_clear.html">SSL_clear(3)</a>, <a href="../man7/ssl.html">ssl(7)</a>, <a href="../man3/SSL_set_connect_state.html">SSL_set_connect_state(3)</a></p>

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

<p>Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.</p>

<p>Licensed under the OpenSSL license (the &quot;License&quot;). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>


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