SilcDList silc_client_get_clients_local(SilcClient client,
                                            SilcClientConnection conn,
                                            const char *nickname,
                                            SilcBool return_all);

    Same as silc_client_get_clients function but does not resolve anything
    from the server.  This checks local cache and returns matching clients
    from the local cache.  If none was found this returns NULL.  The
    `nickname' is the nickname to find and it may be a formatted nickname
    or a base nickname.  If the `return_all' is TRUE this call will return
    all clients matching the `nickname' base.  If it is FALSE this will
    return the exact match if `nickname' is a formatted nickname or the
    first matching nickname if it is not formatted.  The formatted nickname
    must of the format specified in SilcClientParams.  The caller must free
    the returned list by calling silc_client_list_free function.

    If the application stores any of the SilcClientEntry pointers from
    the returned list it must reference it with silc_client_ref_client
    function.

    Application must free the returned list with silc_client_list_free
    function.