eval_file
ret = eval_file(input_fname, &stat_buf, NULL);
static int eval_file(const char *fname, const struct stat64 *statb,
ret = eval_file(name, sp, ftwx);
errs |= eval_file(bp, fp);
errs |= eval_file(bp, cp);
static errmask_t eval_file(struct base *, struct file *);