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<title>ossl_store</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>
<ul>
<li><a href="#General">General</a></li>
<li><a href="#URI-schemes-and-loaders">URI schemes and loaders</a></li>
<li><a href="#UI_METHOD-and-pass-phrases">UI_METHOD and pass phrases</a></li>
</ul>
</li>
<li><a href="#EXAMPLES">EXAMPLES</a>
<ul>
<li><a href="#A-generic-call">A generic call</a></li>
</ul>
</li>
<li><a href="#SEE-ALSO">SEE ALSO</a></li>
<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
</ul>
<h1 id="NAME">NAME</h1>
<p>ossl_store - Store retrieval functions</p>
<h1 id="SYNOPSIS">SYNOPSIS</h1>
<p>#include <openssl/store.h></p>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<h2 id="General">General</h2>
<p>A STORE is a layer of functionality to retrieve a number of supported objects from a repository of any kind, addressable as a filename or as a URI.</p>
<p>The functionality supports the pattern "open a channel to the repository", "loop and retrieve one object at a time", and "finish up by closing the channel".</p>
<p>The retrieved objects are returned as a wrapper type <b>OSSL_STORE_INFO</b>, from which an OpenSSL type can be retrieved.</p>
<h2 id="URI-schemes-and-loaders">URI schemes and loaders</h2>
<p>Support for a URI scheme is called a STORE "loader", and can be added dynamically from the calling application or from a loadable engine.</p>
<p>Support for the 'file' scheme is built into <code>libcrypto</code>. See <a href="../man7/ossl_store-file.html">ossl_store-file(7)</a> for more information.</p>
<h2 id="UI_METHOD-and-pass-phrases">UI_METHOD and pass phrases</h2>
<p>The <b>OSS_STORE</b> API does nothing to enforce any specific format or encoding on the pass phrase that the <b>UI_METHOD</b> provides. However, the pass phrase is expected to be UTF-8 encoded. The result of any other encoding is undefined.</p>
<h1 id="EXAMPLES">EXAMPLES</h1>
<h2 id="A-generic-call">A generic call</h2>
<pre><code> OSSL_STORE_CTX *ctx = OSSL_STORE_open("file:/foo/bar/data.pem");
/*
* OSSL_STORE_eof() simulates file semantics for any repository to signal
* that no more data can be expected
*/
while (!OSSL_STORE_eof(ctx)) {
OSSL_STORE_INFO *info = OSSL_STORE_load(ctx);
/*
* Do whatever is necessary with the OSSL_STORE_INFO,
* here just one example
*/
switch (OSSL_STORE_INFO_get_type(info)) {
case OSSL_STORE_INFO_CERT:
/* Print the X.509 certificate text */
X509_print_fp(stdout, OSSL_STORE_INFO_get0_CERT(info));
/* Print the X.509 certificate PEM output */
PEM_write_X509(stdout, OSSL_STORE_INFO_get0_CERT(info));
break;
}
}
OSSL_STORE_close(ctx);</code></pre>
<h1 id="SEE-ALSO">SEE ALSO</h1>
<p><a href="../man3/OSSL_STORE_INFO.html">OSSL_STORE_INFO(3)</a>, <a href="../man3/OSSL_STORE_LOADER.html">OSSL_STORE_LOADER(3)</a>, <a href="../man3/OSSL_STORE_open.html">OSSL_STORE_open(3)</a>, <a href="../man3/OSSL_STORE_expect.html">OSSL_STORE_expect(3)</a>, <a href="../man3/OSSL_STORE_SEARCH.html">OSSL_STORE_SEARCH(3)</a></p>
<h1 id="COPYRIGHT">COPYRIGHT</h1>
<p>Copyright 2016-2021 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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