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+=pod
+
+=head1 NAME
+
+ossl_store - Store retrieval functions
+
+=head1 SYNOPSIS
+
+=for comment generic
+
+#include <openssl/store.h>
+
+=head1 DESCRIPTION
+
+=head2 General
+
+A STORE is a layer of functionality to retrieve a number of supported
+objects from a repository of any kind, addressable as a file name or
+as a URI.
+
+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".
+
+The retrieved objects are returned as a wrapper type B<OSSL_STORE_INFO>,
+from which an OpenSSL type can be retrieved.
+
+=head2 URI schemes and loaders
+
+Support for a URI scheme is called a STORE "loader", and can be added
+dynamically from the calling application or from a loadable engine.
+
+Support for the 'file' scheme is built into C<libcrypto>.
+See L<ossl_store-file(7)> for more information.
+
+=head2 UI_METHOD and pass phrases
+
+The B<OSS_STORE> API does nothing to enforce any specific format or
+encoding on the pass phrase that the B<UI_METHOD> provides.  However,
+the pass phrase is expected to be UTF-8 encoded.  The result of any
+other encoding is undefined.
+
+=head1 EXAMPLES
+
+=head2 A generic call
+
+ 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_X509:
+         /* 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);
+
+=head1 SEE ALSO
+
+L<OSSL_STORE_INFO(3)>, L<OSSL_STORE_LOADER(3)>,
+L<OSSL_STORE_open(3)>, L<OSSL_STORE_expect(3)>,
+L<OSSL_STORE_SEARCH(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
+
+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
+L<https://www.openssl.org/source/license.html>.
+
+=cut