When the session is set, the reference count of B<session> is incremented
by 1. If the session is not reused, the reference count is decremented
again during SSL_connect(). Whether the session was reused can be queried
-with the L<SSL_session_reused(3)|SSL_session_reused(3)> call.
+with the L<SSL_session_reused(3)> call.
If there is already a session set inside B<ssl> (because it was set with
SSL_set_session() before or because the same B<ssl> was already used for
-a connection), SSL_SESSION_free() will be called for that session.
+a connection), SSL_SESSION_free() will be called for that session. If that old
+session is still B<open>, it is considered bad and will be removed from the
+session cache (if used). A session is considered open, if L<SSL_shutdown(3)> was
+not called for the connection (or at least L<SSL_set_shutdown(3)> was used to
+set the SSL_SENT_SHUTDOWN state).
=head1 NOTES
=head1 SEE ALSO
-L<ssl(3)|ssl(3)>, L<SSL_SESSION_free(3)|SSL_SESSION_free(3)>,
-L<SSL_get_session(3)|SSL_get_session(3)>,
-L<SSL_session_reused(3)|SSL_session_reused(3)>,
-L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>
+L<ssl(3)>, L<SSL_SESSION_free(3)>,
+L<SSL_get_session(3)>,
+L<SSL_session_reused(3)>,
+L<SSL_CTX_set_session_cache_mode(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2000-2016 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
+L<https://www.openssl.org/source/license.html>.
=cut