gnutls_certificate_client_segnutls_certificate_client_set_retrieve_function(3)



NAME
       gnutls_certificate_client_set_retrieve_function	-  Used to set a call-
       back to retrieve the certificate

SYNOPSIS
       #include <gnutls/gnutls.h>

       void    gnutls_certificate_client_set_retrieve_function(gnutls_certifi-
       cate_credentials_t  cred, gnutls_certificate_client_retrieve_function *
       func);

ARGUMENTS
       gnutls_certificate_credentials_t cred

		   is a gnutls_certificate_credentials_t structure.

       gnutls_certificate_client_retrieve_function * func

		   is the callback function

DESCRIPTION
       This function sets a callback to be called in  order  to  retrieve  the
       certificate  to be used in the handshake.  The callback's function pro-
       totype  is:  int  (*callback)(gnutls_session_t,	const  gnutls_datum_t*
       req_ca_dn,   int  nreqs,  const	gnutls_pk_algorithm_t*	pk_algos,  int
       pk_algos_length, gnutls_retr_st* st);

       req_ca_cert is only used in X.509 certificates.	Contains a  list  with
       the  CA	names  that  the server considers trusted.  Normally we should
       send a certificate that is signed by one of these CAs. These names  are
       DER   encoded.  To  get	a  more  meaningful  value  use  the  function
       gnutls_x509_rdn_get().

       pk_algos contains a list with server's acceptable signature algorithms.
       The  certificate returned should support the server's given algorithms.

       st should contain the certificates and private keys.

       If the callback function is provided then gnutls will call it,  in  the
       handshake, after the certificate request message has been received.

       The  callback  function should set the certificate list to be sent, and
       return 0 on success. If no certificate was selected then the number  of
       certificates  should be set to zero. The value (-1) indicates error and
       the handshake will be terminated.

REPORTING BUGS
       Report	bugs   to    <bug-gnutls@gnu.org>.     GnuTLS	 home	 page:
       http://www.gnu.org/software/gnutls/  General  help  using GNU software:
       http://www.gnu.org/gethelp/


COPYRIGHT
       Copyright (C) 2008 Free Software Foundation.
       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.



gnutls			    gnutls_certificate_client_set_retrieve_function(3)

NAME - SYNOPSIS - ARGUMENTS - DESCRIPTION - REPORTING BUGS - COPYRIGHT - 
SEE ALSO -