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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_in_init</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="#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_in_before, SSL_in_init, SSL_is_init_finished, SSL_in_connect_init, SSL_in_accept_init, SSL_get_state - retrieve information about the handshake state machine</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/ssl.h></pre> <pre> int SSL_in_init(const SSL *s); int SSL_in_before(const SSL *s); int SSL_is_init_finished(const SSL *s);</pre> <pre> int SSL_in_connect_init(SSL *s); int SSL_in_accept_init(SSL *s);</pre> <pre> OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p><code>SSL_in_init()</code> returns 1 if the SSL/TLS state machine is currently processing or awaiting handshake messages, or 0 otherwise.</p> <p><code>SSL_in_before()</code> returns 1 if no SSL/TLS handshake has yet been initiated, or 0 otherwise.</p> <p><code>SSL_is_init_finished()</code> returns 1 if the SSL/TLS connection is in a state where fully protected application data can be transferred or 0 otherwise.</p> <p>Note that in some circumstances (such as when early data is being transferred) <code>SSL_in_init()</code>, <code>SSL_in_before()</code> and <code>SSL_is_init_finished()</code> can all return 0.</p> <p><code>SSL_in_connect_init()</code> returns 1 if <strong>s</strong> is acting as a client and <code>SSL_in_init()</code> would return 1, or 0 otherwise.</p> <p><code>SSL_in_accept_init()</code> returns 1 if <strong>s</strong> is acting as a server and <code>SSL_in_init()</code> would return 1, or 0 otherwise.</p> <p><code>SSL_in_connect_init()</code> and <code>SSL_in_accept_init()</code> are implemented as macros.</p> <p><code>SSL_get_state()</code> returns a value indicating the current state of the handshake state machine. OSSL_HANDSHAKE_STATE is an enumerated type where each value indicates a discrete state machine state. Note that future versions of OpenSSL may define more states so applications should expect to receive unrecognised state values. The naming format is made up of a number of elements as follows:</p> <p><strong>protocol</strong>_ST_<strong>role</strong>_<strong>message</strong></p> <p><strong>protocol</strong> is one of TLS or DTLS. DTLS is used where a state is specific to the DTLS protocol. Otherwise TLS is used.</p> <p><strong>role</strong> is one of CR, CW, SR or SW to indicate "client reading", "client writing", "server reading" or "server writing" respectively.</p> <p><strong>message</strong> is the name of a handshake message that is being or has been sent, or is being or has been processed.</p> <p>Additionally there are some special states that do not conform to the above format. These are:</p> <dl> <dt><strong><a name="tls_st_before" class="item">TLS_ST_BEFORE</a></strong></dt> <dd> <p>No handshake messages have yet been been sent or received.</p> </dd> <dt><strong><a name="tls_st_ok" class="item">TLS_ST_OK</a></strong></dt> <dd> <p>Handshake message sending/processing has completed.</p> </dd> <dt><strong><a name="tls_st_early_data" class="item">TLS_ST_EARLY_DATA</a></strong></dt> <dd> <p>Early data is being processed</p> </dd> <dt><strong><a name="tls_st_pending_early_data_end" class="item">TLS_ST_PENDING_EARLY_DATA_END</a></strong></dt> <dd> <p>Awaiting the end of early data processing</p> </dd> </dl> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p><code>SSL_in_init()</code>, <code>SSL_in_before()</code>, <code>SSL_is_init_finished()</code>, <code>SSL_in_connect_init()</code> and <code>SSL_in_accept_init()</code> return values as indicated above.</p> <p><code>SSL_get_state()</code> returns the current handshake state.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>ssl(7)</em>, <em>SSL_read_early_data(3)</em></p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2017-2018 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>