gnutls_certificate_client_set_retrieve_function

Section: gnutls (3)
Updated: 1.4.1
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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 prototype is: int (*callback)(gnutls_session_t, const gnutls_datum_t* req_ca_dn, int nreqs, gnutls_pk_algorithm_t* pk_algos, int pk_algos_length, gnutls_retr_st* st);

st should contain the certificates and private keys.

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.

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>.  

COPYRIGHT

Copyright © 2004 Free Software Foundation.
Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.  

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.


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
REPORTING BUGS
COPYRIGHT
SEE ALSO

linux.jgfs.net manual pages