1=pod
2
3=head1 NAME
4
5SSL_set_session - set a TLS/SSL session to be used during TLS/SSL connect
6
7=head1 SYNOPSIS
8
9 #include <openssl/ssl.h>
10
11 int SSL_set_session(SSL *ssl, SSL_SESSION *session);
12
13=head1 DESCRIPTION
14
15SSL_set_session() sets B<session> to be used when the TLS/SSL connection
16is to be established. SSL_set_session() is only useful for TLS/SSL clients.
17When the session is set, the reference count of B<session> is incremented
18by 1. If the session is not reused, the reference count is decremented
19again during SSL_connect(). Whether the session was reused can be queried
20with the L<SSL_session_reused(3)> call.
21
22If there is already a session set inside B<ssl> (because it was set with
23SSL_set_session() before or because the same B<ssl> was already used for
24a connection), SSL_SESSION_free() will be called for that session. If that old
25session is still B<open>, it is considered bad and will be removed from the
26session cache (if used). A session is considered open, if L<SSL_shutdown(3)> was
27not called for the connection (or at least L<SSL_set_shutdown(3)> was used to
28set the SSL_SENT_SHUTDOWN state).
29
30=head1 NOTES
31
32SSL_SESSION objects keep internal link information about the session cache
33list, when being inserted into one SSL_CTX object's session cache.
34One SSL_SESSION object, regardless of its reference count, must therefore
35only be used with one SSL_CTX object (and the SSL objects created
36from this SSL_CTX object).
37
38=head1 RETURN VALUES
39
40The following return values can occur:
41
42=over 4
43
44=item Z<>0
45
46The operation failed; check the error stack to find out the reason.
47
48=item Z<>1
49
50The operation succeeded.
51
52=back
53
54=head1 SEE ALSO
55
56L<ssl(7)>, L<SSL_SESSION_free(3)>,
57L<SSL_get_session(3)>,
58L<SSL_session_reused(3)>,
59L<SSL_CTX_set_session_cache_mode(3)>
60
61=head1 COPYRIGHT
62
63Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
64
65Licensed under the OpenSSL license (the "License").  You may not use
66this file except in compliance with the License.  You can obtain a copy
67in the file LICENSE in the source distribution or at
68L<https://www.openssl.org/source/license.html>.
69
70=cut
71