66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
BIO_set_data, BIO_get_data, BIO_set_init, BIO_get_init, BIO_set_shutdown,
|
||
|
|
BIO_get_shutdown - functions for managing BIO state information
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
#include <openssl/bio.h>
|
||
|
|
|
||
|
|
void BIO_set_data(BIO *a, void *ptr);
|
||
|
|
void *BIO_get_data(BIO *a);
|
||
|
|
void BIO_set_init(BIO *a, int init);
|
||
|
|
int BIO_get_init(BIO *a);
|
||
|
|
void BIO_set_shutdown(BIO *a, int shut);
|
||
|
|
int BIO_get_shutdown(BIO *a);
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
These functions are mainly useful when implementing a custom BIO.
|
||
|
|
|
||
|
|
The BIO_set_data() function associates the custom data pointed to by B<ptr> with
|
||
|
|
the BIO. This data can subsequently be retrieved via a call to BIO_get_data().
|
||
|
|
This can be used by custom BIOs for storing implementation specific information.
|
||
|
|
|
||
|
|
The BIO_set_init() function sets the value of the BIO's "init" flag to indicate
|
||
|
|
whether initialisation has been completed for this BIO or not. A nonzero value
|
||
|
|
indicates that initialisation is complete, whilst zero indicates that it is not.
|
||
|
|
Often initialisation will complete during initial construction of the BIO. For
|
||
|
|
some BIOs however, initialisation may not complete until after additional steps
|
||
|
|
have occurred (for example through calling custom ctrls). The BIO_get_init()
|
||
|
|
function returns the value of the "init" flag.
|
||
|
|
|
||
|
|
The BIO_set_shutdown() and BIO_get_shutdown() functions set and get the state of
|
||
|
|
this BIO's shutdown (i.e. BIO_CLOSE) flag. If set then the underlying resource
|
||
|
|
is also closed when the BIO is freed.
|
||
|
|
|
||
|
|
=head1 RETURN VALUES
|
||
|
|
|
||
|
|
BIO_get_data() returns a pointer to the implementation specific custom data
|
||
|
|
associated with this BIO, or NULL if none has been set.
|
||
|
|
|
||
|
|
BIO_get_init() returns the state of the BIO's init flag.
|
||
|
|
|
||
|
|
BIO_get_shutdown() returns the stat of the BIO's shutdown (i.e. BIO_CLOSE) flag.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<bio>, L<BIO_meth_new>
|
||
|
|
|
||
|
|
=head1 HISTORY
|
||
|
|
|
||
|
|
The functions described here were added in OpenSSL 1.1.0.
|
||
|
|
|
||
|
|
=head1 COPYRIGHT
|
||
|
|
|
||
|
|
Copyright 2016-2020 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
|