Function dir_iterator_begin

dir-iterator.c:270–305

}

struct dir_iterator *dir_iterator_begin(const char *path, unsigned int flags)
{
	struct dir_iterator_int *iter = xcalloc(1, sizeof(*iter));
	struct dir_iterator *dir_iterator = &iter->base;
	int saved_errno, err;

	strbuf_init(&iter->base.path, PATH_MAX);
	strbuf_addstr(&iter->base.path, path);

	ALLOC_GROW(iter->levels, 10, iter->levels_alloc);
	iter->levels_nr = 0;
	iter->flags = flags;

	/*
	 * Note: lstat already checks for NULL or empty strings and
	 * nonexistent paths.
	 */
	err = lstat(iter->base.path.buf, &iter->base.st);

	if (err < 0) {
		saved_errno = errno;
		goto error_out;
	}

	if (!S_ISDIR(iter->base.st.st_mode)) {
		saved_errno = ENOTDIR;
		goto error_out;
	}

	return dir_iterator;

error_out:
	dir_iterator_free(dir_iterator);
	errno = saved_errno;
	return NULL;
}