tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize offset, tfc_fsize readto);
void read_defaults(const char *path, tfc_yesno noerr);
tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize offset, tfc_fsize readto);
void read_defaults(const char *path, tfc_yesno noerr);