NAME

       gnutls_psk_set_server_credentials_function2 - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       void           gnutls_psk_set_server_credentials_function2(gnutls_psk_server_credentials_t          cred,
       gnutls_psk_server_credentials_function2 func);

ARGUMENTS

       gnutls_psk_server_credentials_t cred
                   is a gnutls_psk_server_credentials_t type.

       gnutls_psk_server_credentials_function2 func
                   is the callback function

DESCRIPTION

       This function can be used to set a callback to retrieve  the  user's  PSK  credentials.   The  callback's
       function form is: int (*callback)(gnutls_session_t, const gnutls_datum_t* username, gnutls_datum_t* key);

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

        username contains the actual username.  The  key must be filled in using the gnutls_malloc().

       In case the callback returned a negative number then gnutls will assume that the username does not exist.

       The callback function will only be called once per handshake.  The callback function should return  0  on
       success, while -1 indicates an error.

REPORTING BUGS

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

COPYRIGHT

       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/