mirror of https://github.com/openssl/openssl.git
55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
=pod
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=head1 NAME
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EVP_PKEY_CTX_get0_libctx,
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EVP_PKEY_CTX_get0_propq,
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EVP_PKEY_CTX_get0_provider
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- functions for getting diverse information from an EVP_PKEY_CTX
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=head1 SYNOPSIS
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#include <openssl/evp.h>
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OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx);
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const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx);
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const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx);
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=head1 DESCRIPTION
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EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() obtain the
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OSSL_LIB_CTX and property query string values respectively that were
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associated with the EVP_PKEY_CTX when it was constructed.
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EVP_PKEY_CTX_get0_provider() returns the provider associated with the
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ongoing B<EVP_PKEY_CTX> operation. If the operation is performed by
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en B<ENGINE>, this function returns NULL.
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=head1 RETURN VALUES
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EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() functions return the
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OSSL_LIB_CTX and property query string associated with the EVP_PKEY_CTX or NULL
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if they are not set. The returned values should not be freed by the caller.
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EVP_PKEY_CTX_get0_provider() returns a provider if an operation performed by
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a provider is ongoing, otherwise NULL.
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=head1 SEE ALSO
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L<EVP_PKEY_CTX_new(3)>
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=head1 HISTORY
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All functions were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (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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