gnutls_certificate_client_set_retrieve_function man page on FreeBSD
gnutls_certificate_client_set_retrieve_function - Used to set a call‐
back to retrieve the certificate
cate_credentials_t cred, gnutls_certificate_client_retrieve_function *
is a gnutls_certificate_credentials_t structure.
gnutls_certificate_client_retrieve_function * func
is the callback function
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
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.
Report bugs to <email@example.com>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
Copyright © 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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the info and gnutls programs are properly installed at your site,
should give you access to the complete manual.
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