EVP_PKEY_CTX_get0_libctx, EVP_PKEY_CTX_get0_propq, EVP_PKEY_CTX_get0_provider - functions for getting

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       Licensed under the Apache License 2.0 (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>.

3.5.0                                              2025-06-04                     EVP_PKEY_CTX_GET0_LIBCTX(3SSL)

EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() obtain the OSSL_LIB_CTX and property query
       string values respectively that were associated with the EVP_PKEY_CTX when it was constructed.

       EVP_PKEY_CTX_get0_provider() returns the provider associated with the ongoing EVP_PKEY_CTX operation.  If
       the operation is performed by en ENGINE, this function returns NULL.

       All functions were added in OpenSSL 3.0.

       EVP_PKEY_CTX_get0_libctx, EVP_PKEY_CTX_get0_propq, EVP_PKEY_CTX_get0_provider - functions for getting
       diverse information from an EVP_PKEY_CTX

EVP_PKEY_CTX_get0_libctx() and EVP_PKEY_CTX_get0_propq() functions return the OSSL_LIB_CTX and property
       query string associated with the EVP_PKEY_CTX or NULL if they are not set. The returned values should not
       be freed by the caller.

       EVP_PKEY_CTX_get0_provider() returns a provider if an operation performed by a provider is ongoing,
       otherwise NULL.

EVP_PKEY_CTX_new(3)

        #include <openssl/evp.h>

        OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx);
        const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx);
        const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx);