mirror of https://github.com/openssl/openssl.git
73 lines
2.3 KiB
Plaintext
73 lines
2.3 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
SSL_CTX_set_quiet_shutdown, SSL_CTX_get_quiet_shutdown, SSL_set_quiet_shutdown, SSL_get_quiet_shutdown - manipulate shutdown behaviour
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/ssl.h>
|
|
|
|
void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
|
|
int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
|
|
|
|
void SSL_set_quiet_shutdown(SSL *ssl, int mode);
|
|
int SSL_get_quiet_shutdown(const SSL *ssl);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
SSL_CTX_set_quiet_shutdown() sets the "quiet shutdown" flag for B<ctx> to be
|
|
B<mode>. SSL objects created from B<ctx> inherit the B<mode> valid at the time
|
|
L<SSL_new(3)> is called. B<mode> may be 0 or 1.
|
|
|
|
SSL_CTX_get_quiet_shutdown() returns the "quiet shutdown" setting of B<ctx>.
|
|
|
|
SSL_set_quiet_shutdown() sets the "quiet shutdown" flag for B<ssl> to be
|
|
B<mode>. The setting stays valid until B<ssl> is removed with
|
|
L<SSL_free(3)> or SSL_set_quiet_shutdown() is called again.
|
|
It is not changed when L<SSL_clear(3)> is called.
|
|
B<mode> may be 0 or 1.
|
|
|
|
SSL_get_quiet_shutdown() returns the "quiet shutdown" setting of B<ssl>.
|
|
|
|
=head1 NOTES
|
|
|
|
Normally when a SSL connection is finished, the parties must send out
|
|
close_notify alert messages using L<SSL_shutdown(3)>
|
|
for a clean shutdown.
|
|
|
|
When setting the "quiet shutdown" flag to 1, L<SSL_shutdown(3)>
|
|
will set the internal flags to SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.
|
|
(L<SSL_shutdown(3)> then behaves like
|
|
L<SSL_set_shutdown(3)> called with
|
|
SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.)
|
|
The session is thus considered to be shutdown, but no close_notify alert
|
|
is sent to the peer. This behaviour violates the TLS standard.
|
|
|
|
The default is normal shutdown behaviour as described by the TLS standard.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
SSL_CTX_set_quiet_shutdown() and SSL_set_quiet_shutdown() do not return
|
|
diagnostic information.
|
|
|
|
SSL_CTX_get_quiet_shutdown() and SSL_get_quiet_shutdown return the current
|
|
setting.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<ssl(7)>, L<SSL_shutdown(3)>,
|
|
L<SSL_set_shutdown(3)>, L<SSL_new(3)>,
|
|
L<SSL_clear(3)>, L<SSL_free(3)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (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
|