gnutls_psk_set_client_credentials_function2

gnutls_psk_set_client_credentials_gnutlstpsk3set_client_credentials_function2(3)



NAME
       gnutls_psk_set_client_credentials_function2 - API function

SYNOPSIS
       #include <gnutls/gnutls.h>

       void
       gnutls_psk_set_client_credentials_function2(gnutls_psk_client_credentials_t
       cred, gnutls_psk_client_credentials_function2 * func);

ARGUMENTS
       gnutls_psk_client_credentials_t cred
                   is a gnutls_psk_server_credentials_t type.

       gnutls_psk_client_credentials_function2 * func
                   is the callback function

DESCRIPTION
       This function can be used to set a callback to retrieve the username and
       password for client PSK authentication.  The callback's function form is:
       int (*callback)(gnutls_session_t, gnutls_datum_t* username,
       gnutls_datum_t* key);

       This callback function has the same semantics as that of
       gnutls_psk_set_client_credentials_function(), but it allows non-string
       usernames to be used.

       The  username and  key ->data must be allocated using gnutls_malloc().
       The  username should be an ASCII string or UTF-8 string. In case of a
       UTF-8 string it is recommended to be following the PRECIS framework for
       usernames (rfc8265).

       The callback function will be called once per handshake.

       The callback function should return 0 on success.  -1 indicates an error.

REPORTING BUGS
       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org


COPYRIGHT
       Copyright © 2001-2020 Free Software Foundation, Inc., and others.
       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 /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       https://www.gnutls.org/manual/

gnutls                            gnutls.psk_set_client_credentials_function2(3)