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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>

<p>ossl_store - Store retrieval functions</p>

<h1 id="SYNOPSIS">SYNOPSIS</h1>

<p>#include &lt;openssl/store.h&gt;</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 &quot;open a channel to the repository&quot;, &quot;loop and retrieve one object at a time&quot;, and &quot;finish up by closing the channel&quot;.</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 &quot;loader&quot;, and can be added dynamically from the calling application or from a loadable engine.</p>

<p>Support for the &#39;file&#39; 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(&quot;file:/foo/bar/data.pem&quot;);

/*
  * 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>

<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>Licensed under the OpenSSL license (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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