NAME
SSL_get_ex_new_index,
    SSL_set_ex_data,
    SSL_get_ex_data —
    internal application specific data
    functions
SYNOPSIS
#include
    <openssl/ssl.h>
int
  
  SSL_get_ex_new_index(long argl,
    void *argp, CRYPTO_EX_new
    *new_func, CRYPTO_EX_dup *dup_func,
    CRYPTO_EX_free *free_func);
int
  
  SSL_set_ex_data(SSL
    *ssl, int idx,
    void *arg);
void *
  
  SSL_get_ex_data(const
    SSL *ssl, int
  idx);
typedef int new_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
               int idx, long argl, void *argp);
typedef void free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
               int idx, long argl, void *argp);
typedef int dup_func(CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from, void *from_d,
               int idx, long argl, void *argp);
DESCRIPTION
Several OpenSSL structures can have application specific data attached to them. These functions are used internally by OpenSSL to manipulate application specific data attached to a specific structure.
SSL_get_ex_new_index()
    is used to register a new index for application specific data.
SSL_set_ex_data()
    is used to store application data at arg for
    idx into the ssl object.
SSL_get_ex_data()
    is used to retrieve the information for idx from
    ssl.
A detailed description for the
    *_get_ex_new_index()
    functionality can be found in
    RSA_get_ex_new_index(3). The
    *_get_ex_data()
    and
    *_set_ex_data()
    functionality is described in
    CRYPTO_set_ex_data(3).
EXAMPLES
An example of how to use the functionality is included in the
    example verify_callback() in
    SSL_CTX_set_verify(3).
SEE ALSO
CRYPTO_set_ex_data(3), RSA_get_ex_new_index(3), ssl(3), SSL_CTX_set_verify(3)