NAME

       gnutls_psk_set_server_credentials_function - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       void           gnutls_psk_set_server_credentials_function(gnutls_psk_server_credentials_t           cred,
       gnutls_psk_server_credentials_function * func);

ARGUMENTS

       gnutls_psk_server_credentials_t cred
                   is a gnutls_psk_server_credentials_t type.

       gnutls_psk_server_credentials_function * 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 char* username, gnutls_datum_t* key);

        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/