enum { TFC_ERRACT_EXIT, TFC_ERRACT_CONT, TFC_ERRACT_SYNC, TFC_ERRACT_LSYNC };
enum { TFC_DO_PLAIN, TFC_DO_ENCRYPT, TFC_DO_DECRYPT };
-enum { TFC_MAC_DROP = -1, TFC_MAC_SIGN = 1, TFC_MAC_VRFY, TFC_MAC_JUST_VRFY, TFC_MAC_JUST_VRFY2 };
+enum { TFC_MAC_DROP2 = -2, TFC_MAC_DROP = -1, TFC_MAC_SIGN = 1, TFC_MAC_VRFY, TFC_MAC_JUST_VRFY, TFC_MAC_JUST_VRFY2 };
enum { TFC_MACKEY_RAWKEY = 1, TFC_MACKEY_PASSWORD, TFC_MACKEY_FILE };
enum { TFC_RAWKEY_KEYFILE = 1, TFC_RAWKEY_ASKSTR, TFC_RAWKEY_ASKHEX };
enum { TFC_OUTFMT_HEX = 1, TFC_OUTFMT_B64, TFC_OUTFMT_RAW };