| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | EVP_PKEY_CTX_get0_libctx,
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| 6 | EVP_PKEY_CTX_get0_propq,
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| 7 | EVP_PKEY_CTX_get0_provider
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| 8 | - functions for getting diverse information from an EVP_PKEY_CTX
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| 9 |
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| 10 | =head1 SYNOPSIS
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| 11 |
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| 12 | #include <openssl/evp.h>
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| 13 |
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| 14 | OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx);
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| 15 | const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx);
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| 16 | const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx);
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| 17 |
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| 18 | =head1 DESCRIPTION
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| 19 |
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| 20 | EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() obtain the
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| 21 | OSSL_LIB_CTX and property query string values respectively that were
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| 22 | associated with the EVP_PKEY_CTX when it was constructed.
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| 23 |
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| 24 | EVP_PKEY_CTX_get0_provider() returns the provider associated with the
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| 25 | ongoing B<EVP_PKEY_CTX> operation. If the operation is performed by
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| 26 | en B<ENGINE>, this function returns NULL.
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| 27 |
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| 28 | =head1 RETURN VALUES
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| 29 |
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| 30 | EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() functions return the
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| 31 | OSSL_LIB_CTX and property query string associated with the EVP_PKEY_CTX or NULL
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| 32 | if they are not set. The returned values should not be freed by the caller.
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| 33 |
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| 34 | EVP_PKEY_CTX_get0_provider() returns a provider if an operation performed by
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| 35 | a provider is ongoing, otherwise NULL.
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| 36 |
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| 37 | =head1 SEE ALSO
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| 38 |
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| 39 | L<EVP_PKEY_CTX_new(3)>
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| 40 |
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| 41 | =head1 HISTORY
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| 42 |
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| 43 | All functions were added in OpenSSL 3.0.
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| 44 |
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| 45 | =head1 COPYRIGHT
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| 46 |
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| 47 | Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 48 |
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| 49 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 50 | this file except in compliance with the License. You can obtain a copy
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| 51 | in the file LICENSE in the source distribution or at
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| 52 | L<https://www.openssl.org/source/license.html>.
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| 53 |
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| 54 | =cut
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