static inline
    unsigned char *silc_buffer_steal(SilcBuffer sb, SilcUInt32 *data_len);

    Steals the data from the buffer `sb'.  This returns pointer to the
    start of the buffer and the true length of that buffer.  The `sb'
    cannot be used anymore after calling this function because the
    data buffer was stolen.  The `sb' must be freed with silc_buffer_free.
    The caller is responsible of freeing the stolen data buffer with
    silc_free.