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SSL_CTX_set_quiet_shutdown(3) OpenSSL SSL_CTX_set_quiet_shutdown(3)
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SSL_set_quiet_shutdown, SSL_get_quiet_shutdown - manipulate shutdown
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);
SSL_CTX_set_quiet_shutdown() sets the "quiet shutdown" flag for ctx to
be mode. SSL objects created from ctx inherit the mode valid at the
time SSL_new(3) is called. mode may be 0 or 1.
SSL_CTX_get_quiet_shutdown() returns the "quiet shutdown" setting of
SSL_set_quiet_shutdown() sets the "quiet shutdown" flag for ssl to be
mode. The setting stays valid until ssl is removed with SSL_free(3) or
SSL_set_quiet_shutdown() is called again. It is not changed when
SSL_clear(3) is called. mode may be 0 or 1.
SSL_get_quiet_shutdown() returns the "quiet shutdown" setting of ssl.
Normally when a SSL connection is finished, the parties must send out
close_notify alert messages using SSL_shutdown(3) for a clean shutdown.
When setting the "quiet shutdown" flag to 1, SSL_shutdown(3) will set
the internal flags to SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.
(SSL_shutdown(3) then behaves like 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
SSL_CTX_set_quiet_shutdown() and SSL_set_quiet_shutdown() do not return
SSL_CTX_get_quiet_shutdown() and SSL_get_quiet_shutdown return the
ssl(7), SSL_shutdown(3), SSL_set_shutdown(3), SSL_new(3), SSL_clear(3),
Copyright 2001-2018 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
1.1.1i 2018-12-08 SSL_CTX_set_quiet_shutdown(3)