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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>SSL_CTX_set_quiet_shutdown</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@hsxx.drive.ne.jp" /> </head> <body style="background-color: white"> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <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> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <hr /> <h1><a name="name">NAME</a></h1> <p>SSL_CTX_set_quiet_shutdown, SSL_CTX_get_quiet_shutdown, SSL_set_quiet_shutdown, SSL_get_quiet_shutdown - manipulate shutdown behaviour</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/ssl.h></pre> <pre> void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode); int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);</pre> <pre> void SSL_set_quiet_shutdown(SSL *ssl, int mode); int SSL_get_quiet_shutdown(const SSL *ssl);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p><code>SSL_CTX_set_quiet_shutdown()</code> sets the "quiet shutdown" flag for <strong>ctx</strong> to be <strong>mode</strong>. SSL objects created from <strong>ctx</strong> inherit the <strong>mode</strong> valid at the time <em>SSL_new(3)</em> is called. <strong>mode</strong> may be 0 or 1.</p> <p><code>SSL_CTX_get_quiet_shutdown()</code> returns the "quiet shutdown" setting of <strong>ctx</strong>.</p> <p><code>SSL_set_quiet_shutdown()</code> sets the "quiet shutdown" flag for <strong>ssl</strong> to be <strong>mode</strong>. The setting stays valid until <strong>ssl</strong> is removed with <em>SSL_free(3)</em> or <code>SSL_set_quiet_shutdown()</code> is called again. It is not changed when <em>SSL_clear(3)</em> is called. <strong>mode</strong> may be 0 or 1.</p> <p><code>SSL_get_quiet_shutdown()</code> returns the "quiet shutdown" setting of <strong>ssl</strong>.</p> <p> </p> <hr /> <h1><a name="notes">NOTES</a></h1> <p>Normally when a SSL connection is finished, the parties must send out close_notify alert messages using <em>SSL_shutdown(3)</em> for a clean shutdown.</p> <p>When setting the "quiet shutdown" flag to 1, <em>SSL_shutdown(3)</em> will set the internal flags to SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN. (<em>SSL_shutdown(3)</em> then behaves like <em>SSL_set_shutdown(3)</em> called with SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.) The session is thus considered to be shutdown, but no close_notify alert is sent to the peer. This behaviour violates the TLS standard.</p> <p>The default is normal shutdown behaviour as described by the TLS standard.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p><code>SSL_CTX_set_quiet_shutdown()</code> and <code>SSL_set_quiet_shutdown()</code> do not return diagnostic information.</p> <p><code>SSL_CTX_get_quiet_shutdown()</code> and SSL_get_quiet_shutdown return the current setting.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>ssl(7)</em>, <em>SSL_shutdown(3)</em>, <em>SSL_set_shutdown(3)</em>, <em>SSL_new(3)</em>, <em>SSL_clear(3)</em>, <em>SSL_free(3)</em></p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2001-2018 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> </body> </html>