晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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<title>OSSL_STORE_INFO</title>
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<body>
<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="#Types">Types</a></li>
<li><a href="#Functions">Functions</a></li>
</ul>
</li>
<li><a href="#SUPPORTED-OBJECTS">SUPPORTED OBJECTS</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>
<h1 id="NAME">NAME</h1>
<p>OSSL_STORE_INFO, OSSL_STORE_INFO_get_type, OSSL_STORE_INFO_get0_NAME, OSSL_STORE_INFO_get0_NAME_description, OSSL_STORE_INFO_get0_PARAMS, OSSL_STORE_INFO_get0_PKEY, OSSL_STORE_INFO_get0_CERT, OSSL_STORE_INFO_get0_CRL, OSSL_STORE_INFO_get1_NAME, OSSL_STORE_INFO_get1_NAME_description, OSSL_STORE_INFO_get1_PARAMS, OSSL_STORE_INFO_get1_PKEY, OSSL_STORE_INFO_get1_CERT, OSSL_STORE_INFO_get1_CRL, OSSL_STORE_INFO_type_string, OSSL_STORE_INFO_free, OSSL_STORE_INFO_new_NAME, OSSL_STORE_INFO_set0_NAME_description, OSSL_STORE_INFO_new_PARAMS, OSSL_STORE_INFO_new_PKEY, OSSL_STORE_INFO_new_CERT, OSSL_STORE_INFO_new_CRL - Functions to manipulate OSSL_STORE_INFO objects</p>
<h1 id="SYNOPSIS">SYNOPSIS</h1>
<pre><code> #include <openssl/store.h>
typedef struct ossl_store_info_st OSSL_STORE_INFO;
int OSSL_STORE_INFO_get_type(const OSSL_STORE_INFO *store_info);
const char *OSSL_STORE_INFO_get0_NAME(const OSSL_STORE_INFO *store_info);
char *OSSL_STORE_INFO_get1_NAME(const OSSL_STORE_INFO *store_info);
const char *OSSL_STORE_INFO_get0_NAME_description(const OSSL_STORE_INFO
*store_info);
char *OSSL_STORE_INFO_get1_NAME_description(const OSSL_STORE_INFO *store_info);
EVP_PKEY *OSSL_STORE_INFO_get0_PARAMS(const OSSL_STORE_INFO *store_info);
EVP_PKEY *OSSL_STORE_INFO_get1_PARAMS(const OSSL_STORE_INFO *store_info);
EVP_PKEY *OSSL_STORE_INFO_get0_PKEY(const OSSL_STORE_INFO *store_info);
EVP_PKEY *OSSL_STORE_INFO_get1_PKEY(const OSSL_STORE_INFO *store_info);
X509 *OSSL_STORE_INFO_get0_CERT(const OSSL_STORE_INFO *store_info);
X509 *OSSL_STORE_INFO_get1_CERT(const OSSL_STORE_INFO *store_info);
X509_CRL *OSSL_STORE_INFO_get0_CRL(const OSSL_STORE_INFO *store_info);
X509_CRL *OSSL_STORE_INFO_get1_CRL(const OSSL_STORE_INFO *store_info);
const char *OSSL_STORE_INFO_type_string(int type);
void OSSL_STORE_INFO_free(OSSL_STORE_INFO *store_info);
OSSL_STORE_INFO *OSSL_STORE_INFO_new_NAME(char *name);
int OSSL_STORE_INFO_set0_NAME_description(OSSL_STORE_INFO *info, char *desc);
OSSL_STORE_INFO *OSSL_STORE_INFO_new_PARAMS(DSA *dsa_params);
OSSL_STORE_INFO *OSSL_STORE_INFO_new_PKEY(EVP_PKEY *pkey);
OSSL_STORE_INFO *OSSL_STORE_INFO_new_CERT(X509 *x509);
OSSL_STORE_INFO *OSSL_STORE_INFO_new_CRL(X509_CRL *crl);</code></pre>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<p>These functions are primarily useful for applications to retrieve supported objects from <b>OSSL_STORE_INFO</b> objects and for scheme specific loaders to create <b>OSSL_STORE_INFO</b> holders.</p>
<h2 id="Types">Types</h2>
<p><b>OSSL_STORE_INFO</b> is an opaque type that's just an intermediary holder for the objects that have been retrieved by OSSL_STORE_load() and similar functions. Supported OpenSSL type object can be extracted using one of STORE_INFO_get0_TYPE(). The life time of this extracted object is as long as the life time of the <b>OSSL_STORE_INFO</b> it was extracted from, so care should be taken not to free the latter too early. As an alternative, STORE_INFO_get1_TYPE() extracts a duplicate (or the same object with its reference count increased), which can be used after the containing <b>OSSL_STORE_INFO</b> has been freed. The object returned by STORE_INFO_get1_TYPE() must be freed separately by the caller. See <a href="#SUPPORTED-OBJECTS">"SUPPORTED OBJECTS"</a> for more information on the types that are supported.</p>
<h2 id="Functions">Functions</h2>
<p>OSSL_STORE_INFO_get_type() takes a <b>OSSL_STORE_INFO</b> and returns the STORE type number for the object inside. STORE_INFO_get_type_string() takes a STORE type number and returns a short string describing it.</p>
<p>OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(), OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT() and OSSL_STORE_INFO_get0_CRL() all take a <b>OSSL_STORE_INFO</b> and return the held object of the appropriate OpenSSL type provided that's what's held.</p>
<p>OSSL_STORE_INFO_get1_NAME(), OSSL_STORE_INFO_get1_NAME_description(), OSSL_STORE_INFO_get1_PARAMS(), OSSL_STORE_INFO_get1_PKEY(), OSSL_STORE_INFO_get1_CERT() and OSSL_STORE_INFO_get1_CRL() all take a <b>OSSL_STORE_INFO</b> and return a duplicate of the held object of the appropriate OpenSSL type provided that's what's held.</p>
<p>OSSL_STORE_INFO_free() frees a <b>OSSL_STORE_INFO</b> and its contained type.</p>
<p>OSSL_STORE_INFO_new_NAME() , OSSL_STORE_INFO_new_PARAMS(), OSSL_STORE_INFO_new_PKEY(), OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL() create a <b>OSSL_STORE_INFO</b> object to hold the given input object. Additionally, for <b>OSSL_STORE_INFO_NAME</b>` objects, OSSL_STORE_INFO_set0_NAME_description() can be used to add an extra description. This description is meant to be human readable and should be used for information printout.</p>
<h1 id="SUPPORTED-OBJECTS">SUPPORTED OBJECTS</h1>
<p>Currently supported object types are:</p>
<dl>
<dt id="OSSL_STORE_INFO_NAME">OSSL_STORE_INFO_NAME</dt>
<dd>
<p>A name is exactly that, a name. It's like a name in a directory, but formatted as a complete URI. For example, the path in URI <code>file:/foo/bar/</code> could include a file named <code>cookie.pem</code>, and in that case, the returned <b>OSSL_STORE_INFO_NAME</b> object would have the URI <code>file:/foo/bar/cookie.pem</code>, which can be used by the application to get the objects in that file. This can be applied to all schemes that can somehow support a listing of object URIs.</p>
<p>For <code>file:</code> URIs that are used without the explicit scheme, the returned name will be the path of each object, so if <code>/foo/bar</code> was given and that path has the file <code>cookie.pem</code>, the name <code>/foo/bar/cookie.pem</code> will be returned.</p>
<p>The returned URI is considered canonical and must be unique and permanent for the storage where the object (or collection of objects) resides. Each loader is responsible for ensuring that it only returns canonical URIs. However, it's possible that certain schemes allow an object (or collection thereof) to be reached with alternative URIs; just because one URI is canonical doesn't mean that other variants can't be used.</p>
<p>At the discretion of the loader that was used to get these names, an extra description may be attached as well.</p>
</dd>
<dt id="OSSL_STORE_INFO_PARAMS">OSSL_STORE_INFO_PARAMS</dt>
<dd>
<p>Key parameters.</p>
</dd>
<dt id="OSSL_STORE_INFO_PKEY">OSSL_STORE_INFO_PKEY</dt>
<dd>
<p>A private/public key of some sort.</p>
</dd>
<dt id="OSSL_STORE_INFO_CERT">OSSL_STORE_INFO_CERT</dt>
<dd>
<p>An X.509 certificate.</p>
</dd>
<dt id="OSSL_STORE_INFO_CRL">OSSL_STORE_INFO_CRL</dt>
<dd>
<p>A X.509 certificate revocation list.</p>
</dd>
</dl>
<h1 id="RETURN-VALUES">RETURN VALUES</h1>
<p>OSSL_STORE_INFO_get_type() returns the STORE type number of the given <b>OSSL_STORE_INFO</b>. There is no error value.</p>
<p>OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(), OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT() and OSSL_STORE_INFO_get0_CRL() all return a pointer to the OpenSSL object on success, NULL otherwise.</p>
<p>OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(), OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT() and OSSL_STORE_INFO_get0_CRL() all return a pointer to a duplicate of the OpenSSL object on success, NULL otherwise.</p>
<p>OSSL_STORE_INFO_type_string() returns a string on success, or <b>NULL</b> on failure.</p>
<p>OSSL_STORE_INFO_new_NAME(), OSSL_STORE_INFO_new_PARAMS(), OSSL_STORE_INFO_new_PKEY(), OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL() return a <b>OSSL_STORE_INFO</b> pointer on success, or <b>NULL</b> on failure.</p>
<p>OSSL_STORE_INFO_set0_NAME_description() returns 1 on success, or 0 on failure.</p>
<h1 id="SEE-ALSO">SEE ALSO</h1>
<p><a href="../man7/ossl_store.html">ossl_store(7)</a>, <a href="../man3/OSSL_STORE_open.html">OSSL_STORE_open(3)</a>, <a href="../man3/OSSL_STORE_register_loader.html">OSSL_STORE_register_loader(3)</a></p>
<h1 id="HISTORY">HISTORY</h1>
<p>OSSL_STORE_INFO(), OSSL_STORE_INFO_get_type(), OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT(), OSSL_STORE_INFO_get0_CRL(), OSSL_STORE_INFO_type_string(), OSSL_STORE_INFO_free(), OSSL_STORE_INFO_new_NAME(), OSSL_STORE_INFO_new_PARAMS(), OSSL_STORE_INFO_new_PKEY(), OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL() were added in OpenSSL 1.1.1.</p>
<h1 id="COPYRIGHT">COPYRIGHT</h1>
<p>Copyright 2016-2017 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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