1=pod 2 3=head1 NAME 4 5SSL_session_reused - query whether a reused session was negotiated during handshake 6 7=head1 SYNOPSIS 8 9 #include <openssl/ssl.h> 10 11 int SSL_session_reused(const SSL *ssl); 12 13=head1 DESCRIPTION 14 15Query, whether a reused session was negotiated during the handshake. 16 17=head1 NOTES 18 19During the negotiation, a client can propose to reuse a session. The server 20then looks up the session in its cache. If both client and server agree 21on the session, it will be reused and a flag is being set that can be 22queried by the application. 23 24=head1 RETURN VALUES 25 26The following return values can occur: 27 28=over 4 29 30=item Z<>0 31 32A new session was negotiated. 33 34=item Z<>1 35 36A session was reused. 37 38=back 39 40=head1 SEE ALSO 41 42L<ssl(7)>, L<SSL_set_session(3)>, 43L<SSL_CTX_set_session_cache_mode(3)> 44 45=head1 COPYRIGHT 46 47Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved. 48 49Licensed under the OpenSSL license (the "License"). You may not use 50this file except in compliance with the License. You can obtain a copy 51in the file LICENSE in the source distribution or at 52L<https://www.openssl.org/source/license.html>. 53 54=cut 55