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Title "OSSL_STORE 7ossl" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
ossl_store - Store retrieval functions Header "SYNOPSIS" #include <openssl/store.h> Header "DESCRIPTION" Subsection "General" A \s-1STORE\s0 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 \s-1URI.\s0

The functionality supports the pattern \*(L"open a channel to the repository\*(R", \*(L"loop and retrieve one object at a time\*(R", and \*(L"finish up by closing the channel\*(R".

The retrieved objects are returned as a wrapper type \s-1OSSL_STORE_INFO\s0, from which an OpenSSL type can be retrieved.

Subsection "URI schemes and loaders" Support for a \s-1URI\s0 scheme is called a \s-1STORE\s0 \*(L"loader\*(R", and can be added dynamically from the calling application or from a loadable engine.

Support for the 'file' scheme is built into \*(C`libcrypto\*(C'. See ossl_store-file\|(7) for more information.

Subsection "UI_METHOD and pass phrases" The \s-1OSS_STORE\s0 \s-1API\s0 does nothing to enforce any specific format or encoding on the pass phrase that the \s-1UI_METHOD\s0 provides. However, the pass phrase is expected to be \s-1UTF-8\s0 encoded. The result of any other encoding is undefined. Header "EXAMPLES" Subsection "A generic call" .Vb 1 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); .Ve Header "SEE ALSO" \s-1OSSL_STORE_INFO\s0\|(3), \s-1OSSL_STORE_LOADER\s0\|(3), \fBOSSL_STORE_open\|(3), OSSL_STORE_expect\|(3), \s-1OSSL_STORE_SEARCH\s0\|(3) Header "COPYRIGHT" Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.