BIO_get_ex_new_index.3ssl man page

BIO_get_ex_new_index, BIO_set_ex_data, BIO_get_ex_data, ENGINE_get_ex_new_index, ENGINE_set_ex_data, ENGINE_get_ex_data, UI_get_ex_new_index, UI_set_ex_data, UI_get_ex_data, X509_get_ex_new_index, X509_set_ex_data, X509_get_ex_data, X509_STORE_get_ex_new_index, X509_STORE_set_ex_data, X509_STORE_get_ex_data, X509_STORE_CTX_get_ex_new_index, X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ex_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, ECDH_get_ex_new_index, ECDH_set_ex_data, ECDH_get_ex_data, EC_KEY_get_ex_new_index, EC_KEY_set_ex_data, EC_KEY_get_ex_data, RSA_get_ex_new_index, RSA_set_ex_data, RSA_get_ex_data — application-specific data


 #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(TYPE *d, int idx);


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

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

TYPE_get_new_ex_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.

Return Values

TYPE_get_new_ex_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



2018-09-11 1.1.1 OpenSSL