oracular (3) gnutls_psk_set_client_credentials_function3.3.gz

Provided by: gnutls-doc_3.8.6-2ubuntu1.1_all bug

NAME
       gnutls_psk_set_client_credentials_function3 - API function


SYNOPSIS
       #include <gnutls/gnutls.h>

       void           gnutls_psk_set_client_credentials_function3(gnutls_psk_client_credentials_t          cred,
       gnutls_psk_client_credentials_function3 * func);


ARGUMENTS
       gnutls_psk_client_credentials_t cred
                   is a gnutls_psk_server_credentials_t type.

       gnutls_psk_client_credentials_function3 * 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, gnutls_datum_t* context, gnutls_psk_key_flags *flags);

       This callback function has the same semantics as that  of  gnutls_psk_set_client_credentials_function2(),
       but  it  returns  flags  associated  with the key.  The callback may import external PSK using the method
       described in RFC 9258 by using gnutls_psk_format_imported_identity().

       The data field of  username ,  key , and  context 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 © 2001-2023 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/