ossl_store - Store retrieval functions
#include <openssl/store.h>
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.
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.
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.
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.
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);
OSSL_STORE_INFO (3), OSSL_STORE_LOADER (3), OSSL_STORE_open (3), OSSL_STORE_expect (3), OSSL_STORE_SEARCH (3)
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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>.