.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "gnutls_sign_callback_set" 3 "3.3.8" "gnutls" "gnutls"
.SH NAME
gnutls_sign_callback_set \- API function
.SH SYNOPSIS
.B #include <gnutls/compat.h>
.sp
.BI "void gnutls_sign_callback_set(gnutls_session_t " session ", gnutls_sign_func " sign_func ", void * " userdata ");"
.SH ARGUMENTS
.IP "gnutls_session_t session" 12
is a gnutls session
.IP "gnutls_sign_func sign_func" 12
function pointer to application's sign callback.
.IP "void * userdata" 12
void pointer that will be passed to sign callback.
.SH "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  \fIuserdata\fP parameter is passed to the  \fIsign_func\fP verbatim, and
can be used to store application\-specific data needed in the
callback function.  See also \fBgnutls_sign_callback_get()\fP.
.SH "DEPRECATED"
Use the PKCS 11 or \fBgnutls_privkey_t\fP interfacess like \fBgnutls_privkey_import_ext()\fP instead.
.SH "REPORTING BUGS"
Report bugs to <bugs@gnutls.org>.
.br
Home page: http://www.gnutls.org

.SH COPYRIGHT
Copyright \(co 2001-2014 Free Software Foundation, Inc..
.br
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.
.SH "SEE ALSO"
The full documentation for
.B gnutls
is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/
directory does not contain the HTML form visit
.B
.IP http://www.gnutls.org/manual/
.PP