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NAME

       SSL_SESSION_get_protocol_version, SSL_SESSION_set_protocol_version - get and set the
       session protocol version

SYNOPSIS

        #include <openssl/ssl.h>

        int SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
        int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version);

DESCRIPTION

       SSL_SESSION_get_protocol_version() returns the protocol version number used by session s.

       SSL_SESSION_set_protocol_version() sets the protocol version associated with the
       SSL_SESSION object s to the value version. This value should be a version constant such as
       TLS1_3_VERSION etc. For example, this could be used to set up a session based PSK (see
       SSL_CTX_set_psk_use_session_callback(3)).

RETURN VALUES

       SSL_SESSION_get_protocol_version() returns a number indicating the protocol version used
       for the session; this number matches the constants e.g.  TLS1_VERSION, TLS1_2_VERSION or
       TLS1_3_VERSION.

       Note that the SSL_SESSION_get_protocol_version() function does not perform a null check on
       the provided session s pointer.

       SSL_SESSION_set_protocol_version() returns 1 on success or 0 on failure.

SEE ALSO

       ssl(7), SSL_CTX_set_psk_use_session_callback(3)

HISTORY

       The SSL_SESSION_get_protocol_version() function was added in OpenSSL 1.1.0.  The
       SSL_SESSION_set_protocol_version() function was added in OpenSSL 1.1.1.

COPYRIGHT

       Copyright 2001-2018 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 <https://www.openssl.org/source/license.html>.