1=pod
2
3=head1 NAME
4
5SSL_get_ex_new_index, SSL_set_ex_data, SSL_get_ex_data - internal application specific data functions
6
7=head1 SYNOPSIS
8
9 #include <openssl/ssl.h>
10
11 int SSL_get_ex_new_index(long argl, void *argp,
12                CRYPTO_EX_new *new_func,
13                CRYPTO_EX_dup *dup_func,
14                CRYPTO_EX_free *free_func);
15
16 int SSL_set_ex_data(SSL *ssl, int idx, void *arg);
17
18 void *SSL_get_ex_data(SSL *ssl, int idx);
19
20 typedef int new_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
21                int idx, long argl, void *argp);
22 typedef void free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
23                int idx, long argl, void *argp);
24 typedef int dup_func(CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from, void *from_d,
25                int idx, long argl, void *argp);
26
27=head1 DESCRIPTION
28
29Several OpenSSL structures can have application specific data attached to them.
30These functions are used internally by OpenSSL to manipulate application
31specific data attached to a specific structure.
32
33SSL_get_ex_new_index() is used to register a new index for application
34specific data.
35
36SSL_set_ex_data() is used to store application data at B<arg> for B<idx> into
37the B<ssl> object.
38
39SSL_get_ex_data() is used to retrieve the information for B<idx> from
40B<ssl>.
41
42A detailed description for the B<*_get_ex_new_index()> functionality
43can be found in L<RSA_get_ex_new_index(3)|RSA_get_ex_new_index(3)>.
44The B<*_get_ex_data()> and B<*_set_ex_data()> functionality is described in
45L<CRYPTO_set_ex_data(3)|CRYPTO_set_ex_data(3)>.
46
47=head1 EXAMPLES
48
49An example on how to use the functionality is included in the example
50verify_callback() in L<SSL_CTX_set_verify(3)|SSL_CTX_set_verify(3)>.
51
52=head1 SEE ALSO
53
54L<ssl(3)|ssl(3)>,
55L<RSA_get_ex_new_index(3)|RSA_get_ex_new_index(3)>,
56L<CRYPTO_set_ex_data(3)|CRYPTO_set_ex_data(3)>,
57L<SSL_CTX_set_verify(3)|SSL_CTX_set_verify(3)>
58
59=cut
60