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gnutls_supplemental_register(3)      gnutls	 gnutls_supplemental_register(3)

NAME
     gnutls_supplemental_register - API function

SYNOPSIS
     #include <gnutls/gnutls.h>

     int   gnutls_supplemental_register(const  char  *	name,  gnutls_supplemen-
     tal_data_format_type_t	type,	   gnutls_supp_recv_func      recv_func,
     gnutls_supp_send_func send_func);

ARGUMENTS
     const char * name
		 the name of the supplemental data to register

     gnutls_supplemental_data_format_type_t type
		 the type of the supplemental data format

     gnutls_supp_recv_func recv_func
		 the function to receive the data

     gnutls_supp_send_func send_func
		 the function to send the data

DESCRIPTION
     This  function  will  register a new supplemental data type (rfc4680).  The
     registered data will remain until	gnutls_global_deinit()	is  called.  The
     provided	type must be an unassigned type in gnutls_supplemental_data_for-
     mat_type_t. If the type is already registered or handled by  GnuTLS  inter-
     nally GNUTLS_E_ALREADY_REGISTERED will be returned.

     This  function is not thread safe. As supplemental data are not defined un-
     der TLS 1.3, this function will disable TLS 1.3 support globally.

RETURNS
     GNUTLS_E_SUCCESS on success, otherwise a negative error code.

SINCE
     3.4.0

REPORTING BUGS
     Report bugs to <bugs@gnutls.org>.
     Home page: https://www.gnutls.org

COPYRIGHT
     Copyright (C) 2001-2023 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/local/share/doc/gnutls/	directory does not contain the HTML form
     visit

     https://www.gnutls.org/manual/

gnutls				     3.8.13	 gnutls_supplemental_register(3)

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<https://man.freebsd.org/cgi/man.cgi?query=gnutls_supplemental_register&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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