2001-08-17 15:09:31 +00:00
|
|
|
=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);
|
2005-03-30 09:47:12 +00:00
|
|
|
int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
|
2001-08-17 15:09:31 +00:00
|
|
|
|
|
|
|
|
void SSL_set_quiet_shutdown(SSL *ssl, int mode);
|
2005-03-30 09:47:12 +00:00
|
|
|
int SSL_get_quiet_shutdown(const SSL *ssl);
|
2001-08-17 15:09:31 +00:00
|
|
|
|
|
|
|
|
=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)|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)|SSL_free(3)> or SSL_set_quiet_shutdown() is called again.
|
|
|
|
|
It is not changed when L<SSL_clear(3)|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)|SSL_shutdown(3)>
|
|
|
|
|
for a clean shutdown.
|
|
|
|
|
|
|
|
|
|
When setting the "quiet shutdown" flag to 1, L<SSL_shutdown(3)|SSL_shutdown(3)>
|
|
|
|
|
will set the internal flags to SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.
|
|
|
|
|
(L<SSL_shutdown(3)|SSL_shutdown(3)> then behaves like
|
|
|
|
|
L<SSL_set_shutdown(3)|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(3)|ssl(3)>, L<SSL_shutdown(3)|SSL_shutdown(3)>,
|
|
|
|
|
L<SSL_set_shutdown(3)|SSL_set_shutdown(3)>, L<SSL_new(3)|SSL_new(3)>,
|
|
|
|
|
L<SSL_clear(3)|SSL_clear(3)>, L<SSL_free(3)|SSL_free(3)>
|
|
|
|
|
|
|
|
|
|
=cut
|
