openssl/doc/ssl/SSL_get_ex_new_index.pod
Rich Salz 9b86974e0c Fix L<> content in manpages
L<foo|foo> is sub-optimal  If the xref is the same as the title,
which is what we do, then you only need L<foo>.  This fixes all
1457 occurrences in 349 files.  Approximately.  (And pod used to
need both.)

Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-08-21 15:11:50 -04:00

59 lines
1.7 KiB
Text

=pod
=head1 NAME
SSL_get_ex_new_index, SSL_set_ex_data, SSL_get_ex_data - internal application specific data functions
=head1 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);
=head1 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 B<arg> for B<idx> into
the B<ssl> object.
SSL_get_ex_data() is used to retrieve the information for B<idx> from
B<ssl>.
A detailed description for the B<*_get_ex_new_index()> functionality
can be found in L<RSA_get_ex_new_index(3)>.
The B<*_get_ex_data()> and B<*_set_ex_data()> functionality is described in
L<CRYPTO_set_ex_data(3)>.
=head1 EXAMPLES
An example on how to use the functionality is included in the example
verify_callback() in L<SSL_CTX_set_verify(3)>.
=head1 SEE ALSO
L<ssl(3)>,
L<RSA_get_ex_new_index(3)>,
L<CRYPTO_set_ex_data(3)>,
L<SSL_CTX_set_verify(3)>
=cut