SSL_clear != SSL_free/SSL_new

or at least L<SSL_set_shutdown(3)|SSL_set_shutdown(3)> was used to

set the SSL_SENT_SHUTDOWN state.

If a session was closed cleanly, the session object will be kept and all

settings corresponding. This explicitly means, that e.g. the special method

used during the session will be kept for the next handshake. So if the

session was a TLSv1 session, a SSL client object will use a TLSv1 client

method for the next handshake and a SSL server object will use a TLSv1

server method, even if SSLv23_*_methods were chosen on startup. This

will might lead to connection failures (see L<SSL_new(3)|SSL_new(3)>)

for a description of the method's properties.

=head1 WARNINGS

SSL_clear() resets the SSL object to allow for another connection. The

reset operation however keeps several settings of the last sessions

(some of these settings were made automatically during the last

handshake). It only makes sense when opening a new session (or reusing

an old one) with the same peer that shares these settings.

SSL_clear() is not a short form for the sequence

L<SSL_free(3)|SSL_free(3)>; L<SSL_new(3)|SSL_new(3)>; .

=head1 RETURN VALUES

The following return values can occur: