Man

Command Section
gnutls_rehandshake(3)               gnutls               gnutls_rehandshake(3)

NAME
       gnutls_rehandshake - API function

SYNOPSIS
       #include <gnutls/gnutls.h>

       int gnutls_rehandshake(gnutls_session_t session);

ARGUMENTS
       gnutls_session_t session
                   is a gnutls_session_t type.

DESCRIPTION
       This function will renegotiate security parameters with the client.
       This should only be called in case of a server.

       This message informs the peer that we want to renegotiate parameters
       (perform a handshake).

       If this function succeeds (returns 0), you must call the
       gnutls_handshake() function in order to negotiate the new parameters.

       Since TLS is full duplex some application data might have been sent
       during peer's processing of this message. In that case one should call
       gnutls_record_recv() until GNUTLS_E_REHANDSHAKE is returned to clear
       any pending data. Care must be taken, if rehandshake is mandatory, to
       terminate if it does not start after some threshold.

       If the client does not wish to renegotiate parameters he should reply
       with an alert message, thus the return code will be
       GNUTLS_E_WARNING_ALERT_RECEIVED and the alert will be
       GNUTLS_A_NO_RENEGOTIATION.  A client may also choose to ignore this
       message.

RETURNS
       GNUTLS_E_SUCCESS on success, otherwise a negative error code.

REPORTING BUGS
       Report bugs to <[email protected]>.
       Home page: http://www.gnutls.org

COPYRIGHT
       Copyright (C) 2001-2017 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO
       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/share/doc/gnutls/ directory does not contain the HTML form
       visit

       http://www.gnutls.org/manual/

gnutls                              3.5.14               gnutls_rehandshake(3)
Command Section