-extern void base64_encode ( const uint8_t *raw, size_t len, char *encoded );
-extern int base64_decode ( const char *encoded, uint8_t *raw );
+extern size_t base64_encode ( const void *raw, size_t raw_len, char *data,
+ size_t len );
+extern int base64_decode ( const char *encoded, void *data, size_t len );