SilcBool
    silc_hash_table_find_by_context_ext(SilcHashTable ht, void *key,
                                        void *context, void **ret_key,
                                        SilcHashFunction hash,
                                        void *hash_user_context,
                                        SilcHashCompare compare,
                                        void *compare_user_context);

    Finds the entry in the hash table by the provided `key' and
    `context' as fast as possible.  This is handy function when there
    can be multiple same keys in the hash table.  By using this function
    the specific key with specific context can be found.  Return
    TRUE if the entry with the key and context was found and FALSE
    otherwise.  The function returns only the key to `ret_key' since
    the caller already knows the context.

    The `hash' and `hash_user_context' are application specified hash
    function. If not provided the hash table's default is used.
    The `compare' and `compare_user_context' are application specified
    comparing function. If not provided the hash table's default is used.