2020-03-02 16:50:34 +00:00

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<title>OPENSSL_CTX</title>
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<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#description">DESCRIPTION</a></li>
<li><a href="#return_values">RETURN VALUES</a></li>
<li><a href="#history">HISTORY</a></li>
<li><a href="#copyright">COPYRIGHT</a></li>
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<h1><a name="name">NAME</a></h1>
<p>OPENSSL_CTX, OPENSSL_CTX_new, OPENSSL_CTX_free - OpenSSL library context</p>
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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#include &lt;openssl/crypto.h&gt;</pre>
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typedef struct openssl_ctx_st OPENSSL_CTX;</pre>
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OPENSSL_CTX *OPENSSL_CTX_new(void);
void OPENSSL_CTX_free(OPENSSL_CTX *ctx);</pre>
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<h1><a name="description">DESCRIPTION</a></h1>
<p><code>OPENSSL_CTX</code> is an internal OpenSSL library context type.
Applications may allocate their own, but may also use <code>NULL</code> to use
the internal default context with functions that take a <code>OPENSSL_CTX</code>
argument.</p>
<p><code>OPENSSL_CTX_new()</code> creates a new OpenSSL library context.
When a non default library context is in use care should be taken with
multi-threaded applications to properly clean up thread local resources before
the OPENSSL_CTX is freed.
See <em>OPENSSL_thread_stop_ex(3)</em> for more information.</p>
<p><code>OPENSSL_CTX_free()</code> frees the given <code>ctx</code>.</p>
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<h1><a name="return_values">RETURN VALUES</a></h1>
<p><code>OPENSSL_CTX_new()</code> return a library context pointer on success, or
<code>NULL</code> on error.</p>
<p><code>OPENSSL_CTX_free()</code> doesn't return any value.</p>
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<h1><a name="history">HISTORY</a></h1>
<p>OPENSSL_CTX, <code>OPENSSL_CTX_new()</code> and <code>OPENSSL_CTX_free()</code>
were added in OpenSSL 3.0.</p>
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<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the Apache License 2.0 (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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