100 lines
3.6 KiB
HTML
Executable File
100 lines
3.6 KiB
HTML
Executable File
<?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>BIO_get_data</title>
|
|
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
|
|
<link rev="made" href="mailto:root@localhost" />
|
|
</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="#history">HISTORY</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>BIO_set_data, BIO_get_data, BIO_set_init, BIO_get_init, BIO_set_shutdown,
|
|
BIO_get_shutdown - functions for managing BIO state information</p>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="synopsis">SYNOPSIS</a></h1>
|
|
<pre>
|
|
#include <openssl/bio.h></pre>
|
|
<pre>
|
|
void BIO_set_data(BIO *a, void *ptr);
|
|
void *BIO_get_data(BIO *a);
|
|
void BIO_set_init(BIO *a, int init);
|
|
int BIO_get_init(BIO *a);
|
|
void BIO_set_shutdown(BIO *a, int shut);
|
|
int BIO_get_shutdown(BIO *a);</pre>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="description">DESCRIPTION</a></h1>
|
|
<p>These functions are mainly useful when implementing a custom BIO.</p>
|
|
<p>The <code>BIO_set_data()</code> function associates the custom data pointed to by <strong>ptr</strong> with
|
|
the BIO. This data can subsequently be retrieved via a call to <code>BIO_get_data()</code>.
|
|
This can be used by custom BIOs for storing implementation specific information.</p>
|
|
<p>The <code>BIO_set_init()</code> function sets the value of the BIO's "init" flag to indicate
|
|
whether initialisation has been completed for this BIO or not. A nonzero value
|
|
indicates that initialisation is complete, whilst zero indicates that it is not.
|
|
Often initialisation will complete during initial construction of the BIO. For
|
|
some BIOs however, initialisation may not complete until after additional steps
|
|
have occurred (for example through calling custom ctrls). The <code>BIO_get_init()</code>
|
|
function returns the value of the "init" flag.</p>
|
|
<p>The <code>BIO_set_shutdown()</code> and <code>BIO_get_shutdown()</code> functions set and get the state of
|
|
this BIO's shutdown (i.e. BIO_CLOSE) flag. If set then the underlying resource
|
|
is also closed when the BIO is freed.</p>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="return_values">RETURN VALUES</a></h1>
|
|
<p><code>BIO_get_data()</code> returns a pointer to the implementation specific custom data
|
|
associated with this BIO, or NULL if none has been set.</p>
|
|
<p><code>BIO_get_init()</code> returns the state of the BIO's init flag.</p>
|
|
<p><code>BIO_get_shutdown()</code> returns the stat of the BIO's shutdown (i.e. BIO_CLOSE) flag.</p>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="see_also">SEE ALSO</a></h1>
|
|
<p><em>bio(7)</em>, <em>BIO_meth_new(3)</em></p>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="history">HISTORY</a></h1>
|
|
<p>The functions described here were added in OpenSSL 1.1.0.</p>
|
|
<p>
|
|
</p>
|
|
<hr />
|
|
<h1><a name="copyright">COPYRIGHT</a></h1>
|
|
<p>Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.</p>
|
|
<p>Licensed under the Apache License 2.0 (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>
|