BIO_get_ex_new_index.pod
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=pod
=head1 NAME
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
=head1 SYNOPSIS
=for comment generic
#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);
=head1 DESCRIPTION
In the description here, I<TYPE> is used a placeholder
for any of the OpenSSL datatypes listed in
L<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 B<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.
=head1 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.
=head1 SEE ALSO
L<CRYPTO_get_ex_new_index(3)>.
=head1 COPYRIGHT
Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut