NAME

       BIO_get_ex_new_index, BIO_set_ex_data, BIO_get_ex_data, BIO_set_app_data,
       BIO_get_app_data, DH_get_ex_new_index, DH_set_ex_data, DH_get_ex_data,
       DSA_get_ex_new_index, DSA_set_ex_data, DSA_get_ex_data, EC_KEY_get_ex_new_index,
       EC_KEY_set_ex_data, EC_KEY_get_ex_data, ENGINE_get_ex_new_index, ENGINE_set_ex_data,
       ENGINE_get_ex_data, EVP_PKEY_get_ex_new_index, EVP_PKEY_set_ex_data, EVP_PKEY_get_ex_data,
       RSA_get_ex_new_index, RSA_set_ex_data, RSA_get_ex_data, RSA_set_app_data,
       RSA_get_app_data, SSL_get_ex_new_index, SSL_set_ex_data, SSL_get_ex_data,
       SSL_set_app_data, SSL_get_app_data, SSL_CTX_get_ex_new_index, SSL_CTX_set_ex_data,
       SSL_CTX_get_ex_data, SSL_CTX_set_app_data, SSL_CTX_get_app_data,
       SSL_SESSION_get_ex_new_index, SSL_SESSION_set_ex_data, SSL_SESSION_get_ex_data,
       SSL_SESSION_set_app_data, SSL_SESSION_get_app_data, UI_get_ex_new_index, UI_set_ex_data,
       UI_get_ex_data, UI_set_app_data, UI_get_app_data, X509_STORE_CTX_get_ex_new_index,
       X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ex_data, X509_STORE_CTX_set_app_data,
       X509_STORE_CTX_get_app_data, X509_STORE_get_ex_new_index, X509_STORE_set_ex_data,
       X509_STORE_get_ex_data, X509_get_ex_new_index, X509_set_ex_data, X509_get_ex_data -
       application-specific data

SYNOPSIS

        #include <openssl/x509.h>

        int TYPE_get_ex_new_index(long argl, void *argp,
                                  CRYPTO_EX_new *new_func,
                                  CRYPTO_EX_dup *dup_func,
                                  CRYPTO_EX_free *free_func);

        int TYPE_set_ex_data(TYPE *d, int idx, void *arg);

        void *TYPE_get_ex_data(const TYPE *d, int idx);

        #define TYPE_set_app_data(TYPE *d, void *arg)
        #define TYPE_get_app_data(TYPE *d)

       The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely
       by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):

        int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
                                CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
        int DH_set_ex_data(DH *type, int idx, void *arg);
        void *DH_get_ex_data(DH *type, int idx);
        int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
                                 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
        int DSA_set_ex_data(DSA *type, int idx, void *arg);
        void *DSA_get_ex_data(DSA *type, int idx);
        int EC_KEY_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
                                    CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
        int EC_KEY_set_ex_data(EC_KEY *type, int idx, void *arg);
        void *EC_KEY_get_ex_data(EC_KEY *type, int idx);
        int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
                                 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
        int RSA_set_ex_data(RSA *type, int idx, void *arg);
        void *RSA_get_ex_data(RSA *type, int idx);
        int RSA_set_app_data(RSA *type, void *arg);
        void *RSA_get_app_data(RSA *type);
        int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
                                    CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
        int ENGINE_set_ex_data(ENGINE *type, int idx, void *arg);
        void *ENGINE_get_ex_data(ENGINE *type, int idx);

DESCRIPTION

       In the description here, TYPE is used a placeholder for any of the OpenSSL datatypes
       listed in CRYPTO_get_ex_new_index(3).

       All functions with a TYPE of DH, DSA, RSA and EC_KEY are deprecated.  Applications should
       instead use EVP_PKEY_set_ex_data(), EVP_PKEY_get_ex_data() and
       EVP_PKEY_get_ex_new_index().

       All functions with a TYPE of ENGINE are deprecated.  Applications using engines should be
       replaced by providers.

       These functions handle application-specific data for OpenSSL data structures.

       TYPE_get_ex_new_index() is a macro that calls CRYPTO_get_ex_new_index() with the correct
       index value.

       TYPE_set_ex_data() is a function that calls CRYPTO_set_ex_data() with an offset into the
       opaque exdata part of the TYPE object.

       TYPE_get_ex_data() is a function that calls CRYPTO_get_ex_data() with an offset into the
       opaque exdata part of the TYPE object.

       For compatibility with previous releases, the exdata index of zero is reserved for
       "application data." There are two convenience functions for this.  TYPE_set_app_data() is
       a macro that invokes TYPE_set_ex_data() with idx set to zero.  TYPE_get_app_data() is a
       macro that invokes TYPE_get_ex_data() with idx set to zero.

RETURN VALUES

       TYPE_get_ex_new_index() returns a new index on success or -1 on error.

       TYPE_set_ex_data() returns 1 on success or 0 on error.

       TYPE_get_ex_data() returns the application data or NULL if an error occurred.

SEE ALSO

       CRYPTO_get_ex_new_index(3).

HISTORY

       The functions DH_get_ex_new_index(), DH_set_ex_data(), DH_get_ex_data(),
       DSA_get_ex_new_index(), DSA_set_ex_data(), DSA_get_ex_data(), EC_KEY_get_ex_new_index(),
       EC_KEY_set_ex_data(), EC_KEY_get_ex_data(), ENGINE_get_ex_new_index(),
       ENGINE_set_ex_data(), ENGINE_get_ex_data(), RSA_get_ex_new_index(), RSA_set_ex_data(),
       RSA_get_ex_data(), RSA_set_app_data() and RSA_get_app_data() were deprecated in OpenSSL
       3.0.

COPYRIGHT

       Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.

       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>.