mmrewind(f);
mmbin_file(mmf_t *f){	int i;	/* XXX knows too much about mmf internals */	for (i = 0; i < BUFSIZ && i < f->len; i++)		if (!isprint(f->base[i]) && !isspace(f->base[i]))			return 1;	mmrewind(f);	return 0;}