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

gnutls_sign_callback_set(3)				gnutls				  gnutls_sign_callback_set(3)

NAME
       gnutls_sign_callback_set - API function

SYNOPSIS
       #include <gnutls/compat.h>

       void gnutls_sign_callback_set(gnutls_session_t session, gnutls_sign_func sign_func, void * userdata);

ARGUMENTS
       gnutls_session_t session
		   is a gnutls session

       gnutls_sign_func sign_func
		   function pointer to application's sign callback.

       void * userdata
		   void pointer that will be passed to sign callback.

DESCRIPTION
       Set the callback function.  The function must have this prototype:

       typedef	 int   (*gnutls_sign_func)   (gnutls_session_t	session,  void	*userdata,  gnutls_certificate_type_t
       cert_type, const gnutls_datum_t * cert, const gnutls_datum_t * hash, gnutls_datum_t * signature);

       The  userdata parameter is passed to the  sign_func verbatim, and can be used  to  store  application-specific
       data needed in the callback function.  See also gnutls_sign_callback_get().

DEPRECATED
       Use the PKCS 11 or gnutls_privkey_t interfacess like gnutls_privkey_import_ext() instead.

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 roy-
       alty 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 manual from:

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

gnutls							3.1.15				  gnutls_sign_callback_set(3)