recurse_dev_re
recurse_dev_re("/", &dir_re[1], &rd);
recurse_dev_re(dev_dir, dir_re, &rd);
recurse_dev_re(dev_dir,
recurse_dev_re(new_path, slash + 1, rd);
static void recurse_dev_re(char *current_dir, char *path_re, recurse_dev_t *rd);