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<title>SSL_set_session</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>
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<h1 id="NAME">NAME</h1>
<p>SSL_set_session - set a TLS/SSL session to be used during TLS/SSL connect</p>
<h1 id="SYNOPSIS">SYNOPSIS</h1>
<pre><code> #include <openssl/ssl.h>
int SSL_set_session(SSL *ssl, SSL_SESSION *session);</code></pre>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<p>SSL_set_session() sets <b>session</b> to be used when the TLS/SSL connection is to be established. SSL_set_session() is only useful for TLS/SSL clients. When the session is set, the reference count of <b>session</b> is incremented by 1. If the session is not reused, the reference count is decremented again during SSL_connect(). Whether the session was reused can be queried with the <a href="../man3/SSL_session_reused.html">SSL_session_reused(3)</a> call.</p>
<p>If there is already a session set inside <b>ssl</b> (because it was set with SSL_set_session() before or because the same <b>ssl</b> was already used for a connection), SSL_SESSION_free() will be called for that session. If that old session is still <b>open</b>, it is considered bad and will be removed from the session cache (if used). A session is considered open, if <a href="../man3/SSL_shutdown.html">SSL_shutdown(3)</a> was not called for the connection (or at least <a href="../man3/SSL_set_shutdown.html">SSL_set_shutdown(3)</a> was used to set the SSL_SENT_SHUTDOWN state).</p>
<h1 id="NOTES">NOTES</h1>
<p>SSL_SESSION objects keep internal link information about the session cache list, when being inserted into one SSL_CTX object's session cache. One SSL_SESSION object, regardless of its reference count, must therefore only be used with one SSL_CTX object (and the SSL objects created from this SSL_CTX object).</p>
<h1 id="RETURN-VALUES">RETURN VALUES</h1>
<p>The following return values can occur:</p>
<dl>
<dt id="pod0">0</dt>
<dd>
<p>The operation failed; check the error stack to find out the reason.</p>
</dd>
<dt id="pod1">1</dt>
<dd>
<p>The operation succeeded.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
<p><a href="../man7/ssl.html">ssl(7)</a>, <a href="../man3/SSL_SESSION_free.html">SSL_SESSION_free(3)</a>, <a href="../man3/SSL_get_session.html">SSL_get_session(3)</a>, <a href="../man3/SSL_session_reused.html">SSL_session_reused(3)</a>, <a href="../man3/SSL_CTX_set_session_cache_mode.html">SSL_CTX_set_session_cache_mode(3)</a></p>
<h1 id="COPYRIGHT">COPYRIGHT</h1>
<p>Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the OpenSSL license (the "License"). 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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