extern int counter_opt, mackey_opt, do_mac, do_outfmt, rawkey;
extern int idx, write_flags;
extern tfc_yesno catch_all_errors, ignore_seek_errors, password, overwrite_source, do_fsync, do_pad, do_ftrunc;
-extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats, show_pid;
+extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats, show_pid, read_only;
extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown, show_secrets, show_when_done;
extern char *srcfname, *dstfname, *do_mac_file, *counter_file, *sksum_hashlist_file;
extern char *saltf, *genkeyf, *mackeyf, *tweakf;
size_t blk_len_adj(tfc_fsize filelen, tfc_fsize read_already, size_t blklen);
tfc_yesno xor_shrink(void *dst, size_t szdst, const void *src, size_t szsrc);
tfc_yesno str_empty(const char *str);
+int xxopen(tfc_yesno noerr, const char *pathname, int flags);
+int xopen(const char *pathname, int flags);
void xclose(int fd);
const char *tfc_modename(int mode);
void tfc_getcurtime(tfc_useconds *tx);