3dfda1a636
find-doc-nits warns if you don't give a "what to do flag" Don't use regexps for section names, just strings: More consistency. Rename "COMMAND OPTIONS" to OPTIONS. Fix a couple of other nit-level things. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2076)
108 lines
3.6 KiB
Text
108 lines
3.6 KiB
Text
=pod
|
|
|
|
=head1 NAME
|
|
|
|
SSL_set_bio, SSL_set0_rbio, SSL_set0_wbio - connect the SSL object with a BIO
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/ssl.h>
|
|
|
|
void SSL_set_bio(SSL *ssl, BIO *rbio, BIO *wbio);
|
|
void SSL_set0_rbio(SSL *s, BIO *rbio);
|
|
void SSL_set0_wbio(SSL *s, BIO *wbio);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
SSL_set0_rbio() connects the BIO B<rbio> for the read operations of the B<ssl>
|
|
object. The SSL engine inherits the behaviour of B<rbio>. If the BIO is
|
|
non-blocking then the B<ssl> object will also have non-blocking behaviour. This
|
|
function transfers ownership of B<rbio> to B<ssl>. It will be automatically
|
|
freed using L<BIO_free_all(3)> when the B<ssl> is freed. On calling this
|
|
function, any existing B<rbio> that was previously set will also be freed via a
|
|
call to L<BIO_free_all(3)> (this includes the case where the B<rbio> is set to
|
|
the same value as previously).
|
|
|
|
SSL_set0_wbio() works in the same as SSL_set0_rbio() except that it connects
|
|
the BIO B<wbio> for the write operations of the B<ssl> object. Note that if the
|
|
rbio and wbio are the same then SSL_set0_rbio() and SSL_set0_wbio() each take
|
|
ownership of one reference. Therefore it may be necessary to increment the
|
|
number of references available using L<BIO_up_ref(3)> before calling the set0
|
|
functions.
|
|
|
|
SSL_set_bio() does a similar job as SSL_set0_rbio() and SSL_set0_wbio() except
|
|
that it connects both the B<rbio> and the B<wbio> at the same time. This
|
|
function transfers the ownership of B<rbio> and B<wbio> to B<ssl> except that
|
|
the rules for this are much more complex. For this reason this function is
|
|
considered a legacy function and SSL_set0_rbio() and SSL_set0_wbio() should be
|
|
used in preference. The ownership rules are as follows:
|
|
|
|
=over 4
|
|
|
|
=item *
|
|
|
|
If neither the rbio or wbio have changed from their previous values then nothing
|
|
is done.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are different and both are different to their
|
|
previously set values then one reference is consumed for the rbio and one
|
|
reference is consumed for the wbio.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are the same and the rbio is not the same as the
|
|
previously set value then one reference is consumed.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are the same and the rbio is the same as the
|
|
previously set value, then no additional references are consumed.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are different and the rbio is the same as the
|
|
previously set value then one reference is consumbed for the wbio and no
|
|
references are consumed for the rbio.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are different and the wbio is the same as the
|
|
previously set value and the old rbio and wbio values were the same as each
|
|
other then one reference is consumed for the rbio and no references are consumed
|
|
for the wbio.
|
|
|
|
=item *
|
|
|
|
If the rbio and wbio parameters are different and the wbio is the same as the
|
|
previously set value and the old rbio and wbio values were different to each
|
|
other then one reference is consumed for the rbio and one reference is consumed
|
|
for the wbio.
|
|
|
|
=back
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
SSL_set_bio(), SSL_set_rbio() and SSL_set_wbio() cannot fail.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<SSL_get_rbio(7)>,
|
|
L<SSL_connect(3)>, L<SSL_accept(3)>,
|
|
L<SSL_shutdown(3)>, L<ssl(7)>, L<bio(7)>
|
|
|
|
=head1 HISTORY
|
|
|
|
SSL_set0_rbio() and SSL_set0_wbio() were added in OpenSSL 1.1.0.
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2016 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
|