suse man page for gnutls_certificate_client_set_retrieve_function

gnutls_certificate_client_set_retrieve_function(3)		      gnutls			gnutls_certificate_client_set_retrieve_function(3)

NAME
       gnutls_certificate_client_set_retrieve_function - Used to set a callback to retrieve the certificate

SYNOPSIS
       #include <gnutls/gnutls.h>

       void  gnutls_certificate_client_set_retrieve_function(gnutls_certificate_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  algo-
       rithms.

       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								       2.8.6			gnutls_certificate_client_set_retrieve_function(3)