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CentOS 7.0 - man page for gnutls_rehandshake (centos section 3)

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 structure.

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  hand-
       shake).

       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 process-
       ing   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  rehand-
       shake is mandatory to terminate if it does not start after some threshold.

       If  the	client	does not wish to renegotiate parameters he will should with an alert mes-
       sage, 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 <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

COPYRIGHT
       Copyright (C) 2012 Free Software Foundation, Inc..
       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	info  and
       gnutls programs are properly installed at your site, the command

	      info gnutls

       should  give you access to the complete manual.	As an alternative you may obtain the man-
       ual from:

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

gnutls					      3.1.15			    gnutls_rehandshake(3)


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