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OSSL_STORE(7SSL)                    OpenSSL                   OSSL_STORE(7SSL)

NAME
       ossl_store - Store retrieval functions

SYNOPSIS
       #include <openssl/store.h>

DESCRIPTION
   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 OSSL_STORE_INFO,
       from which an OpenSSL type can be retrieved.

   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 "libcrypto".  See
       ossl_store-file(7) for more information.

   UI_METHOD and pass phrases
       The OSS_STORE API does nothing to enforce any specific format or
       encoding on the pass phrase that the UI_METHOD provides.  However, the
       pass phrase is expected to be UTF-8 encoded.  The result of any other
       encoding is undefined.

EXAMPLES
   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);

SEE ALSO
       OSSL_STORE_INFO(3), OSSL_STORE_LOADER(3), OSSL_STORE_open(3),
       OSSL_STORE_expect(3), OSSL_STORE_SEARCH(3)

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
       <https://www.openssl.org/source/license.html>.

1.1.1f                            2024-07-30                  OSSL_STORE(7SSL)

NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | COPYRIGHT