|  | =pod | 
|  |  | 
|  | =head1 NAME | 
|  |  | 
|  | SSL_session_reused - query whether a reused session was negotiated during handshake | 
|  |  | 
|  | =head1 SYNOPSIS | 
|  |  | 
|  | #include <openssl/ssl.h> | 
|  |  | 
|  | int SSL_session_reused(const SSL *ssl); | 
|  |  | 
|  | =head1 DESCRIPTION | 
|  |  | 
|  | Query, whether a reused session was negotiated during the handshake. | 
|  |  | 
|  | =head1 NOTES | 
|  |  | 
|  | During the negotiation, a client can propose to reuse a session. The server | 
|  | then looks up the session in its cache. If both client and server agree | 
|  | on the session, it will be reused and a flag is being set that can be | 
|  | queried by the application. | 
|  |  | 
|  | =head1 RETURN VALUES | 
|  |  | 
|  | The following return values can occur: | 
|  |  | 
|  | =over 4 | 
|  |  | 
|  | =item Z<>0 | 
|  |  | 
|  | A new session was negotiated. | 
|  |  | 
|  | =item Z<>1 | 
|  |  | 
|  | A session was reused. | 
|  |  | 
|  | =back | 
|  |  | 
|  | =head1 SEE ALSO | 
|  |  | 
|  | L<ssl(7)>, L<SSL_set_session(3)>, | 
|  | L<SSL_CTX_set_session_cache_mode(3)> | 
|  |  | 
|  | =head1 COPYRIGHT | 
|  |  | 
|  | Copyright 2001-2016 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 |