GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
SSL_SET_SHUTDOWN(3) OpenSSL SSL_SET_SHUTDOWN(3)

SSL_set_shutdown, SSL_get_shutdown - manipulate shutdown state of an SSL connection

 #include <openssl/ssl.h>

 void SSL_set_shutdown(SSL *ssl, int mode);

 int SSL_get_shutdown(const SSL *ssl);

SSL_set_shutdown() sets the shutdown state of ssl to mode.

SSL_get_shutdown() returns the shutdown mode of ssl.

The shutdown state of an ssl connection is a bit mask of:
0
No shutdown setting, yet.
SSL_SENT_SHUTDOWN
A close_notify shutdown alert was sent to the peer, the connection is being considered closed and the session is closed and correct.
SSL_RECEIVED_SHUTDOWN
A shutdown alert was received form the peer, either a normal close_notify or a fatal error.

SSL_SENT_SHUTDOWN and SSL_RECEIVED_SHUTDOWN can be set at the same time.

The shutdown state of the connection is used to determine the state of the ssl session. If the session is still open, when SSL_clear(3) or SSL_free(3) is called, it is considered bad and removed according to RFC2246. The actual condition for a correctly closed session is SSL_SENT_SHUTDOWN (according to the TLS RFC, it is acceptable to only send the close_notify alert but to not wait for the peer's answer, when the underlying connection is closed). SSL_set_shutdown() can be used to set this state without sending a close alert to the peer (see SSL_shutdown(3)).

If a close_notify was received, SSL_RECEIVED_SHUTDOWN will be set, for setting SSL_SENT_SHUTDOWN the application must however still call SSL_shutdown(3) or SSL_set_shutdown() itself.

SSL_set_shutdown() does not return diagnostic information.

SSL_get_shutdown() returns the current setting.

ssl(7), SSL_shutdown(3), SSL_CTX_set_quiet_shutdown(3), SSL_clear(3), SSL_free(3)

Copyright 2001-2020 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 <https://www.openssl.org/source/license.html>.

2022-05-03 1.1.1o

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.