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)
HISTORY
Precursor functions SSL_set_app_data() and
SSL_get_app_data() first appeared in SSLeay
0.6.1.
SSL_get_ex_new_index(),
SSL_set_ex_data(), and
SSL_get_ex_data() first appeared in SSLeay 0.9.0 and
have been available since OpenBSD 2.4.