df75c2bfcd
While stereotyped repetitions are frowned upon in literature, they serve a useful purpose in manual pages, because it is easier for the user to find certain information if it is always presented in the same way. For that reason, this commit harmonizes the varying formulations in the HISTORY section about which functions, flags, etc. were added in which OpenSSL version. It also attempts to make the pod files more grep friendly by avoiding to insert line breaks between the symbol names and the corresponding version number in which they were introduced (wherever possible). Some punctuation and typographical errors were fixed on the way. Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7854)
79 lines
2.4 KiB
Text
79 lines
2.4 KiB
Text
=pod
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=head1 NAME
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OSSL_STORE_expect,
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OSSL_STORE_supports_search,
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OSSL_STORE_find
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- Specify what object type is expected
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=head1 SYNOPSIS
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#include <openssl/store.h>
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int OSSL_STORE_expect(OSSL_STORE_CTX *ctx, int expected_type);
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int OSSL_STORE_supports_search(OSSL_STORE_CTX *ctx, int criterion_type);
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int OSSL_STORE_find(OSSL_STORE_CTX *ctx, OSSL_STORE_SEARCH *search);
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=head1 DESCRIPTION
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OSSL_STORE_expect() helps applications filter what OSSL_STORE_load() returns
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by specifying a B<OSSL_STORE_INFO> type.
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For example, if C<file:/foo/bar/store.pem> contains several different objects
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and only the certificates are interesting, the application can simply say
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that it expects the type B<OSSL_STORE_INFO_CERT>.
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All known object types (see L<OSSL_STORE_INFO(3)/SUPPORTED OBJECTS>)
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except for B<OSSL_STORE_INFO_NAME> are supported.
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OSSL_STORE_find() helps applications specify a criterion for a more fine
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grained search of objects.
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OSSL_STORE_supports_search() checks if the loader of the given OSSL_STORE
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context supports the given search type.
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See L<OSSL_STORE_SEARCH/SUPPORED CRITERION TYPES> for information on the
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supported search criterion types.
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OSSL_STORE_expect() and OSSL_STORE_find I<must> be called before the first
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OSSL_STORE_load() of a given session, or they will fail.
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=head1 NOTES
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If a more elaborate filter is required by the application, a better choice
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would be to use a post-processing function.
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See L<OSSL_STORE_open(3)> for more information.
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However, some loaders may take advantage of the knowledge of an expected type
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to make object retrieval more efficient, so if a single type is expected, this
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method is usually preferable.
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=head1 RETURN VALUES
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OSSL_STORE_expect() returns 1 on success, or 0 on failure.
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OSSL_STORE_supports_search() returns 1 if the criterion is supported, or 0
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otherwise.
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OSSL_STORE_find() returns 1 on success, or 0 on failure.
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=head1 SEE ALSO
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L<ossl_store(7)>, L<OSSL_STORE_INFO(3)>, L<OSSL_STORE_SEARCH(3)>,
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L<OSSL_STORE_load(3)>
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=head1 HISTORY
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OSSL_STORE_expect(), OSSL_STORE_supports_search() and OSSL_STORE_find()
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were added in OpenSSL 1.1.1.
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=head1 COPYRIGHT
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Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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