1#[cfg(not(any(target_os = "redox", target_os = "wasi")))]
2#[test]
3fn test_long_paths() {
4    use rustix::fs::{cwd, mkdirat, openat, Mode, OFlags};
5
6    let tmp = tempfile::tempdir().unwrap();
7    let dir = openat(cwd(), tmp.path(), OFlags::RDONLY, Mode::empty()).unwrap();
8
9    #[cfg(libc)]
10    const PATH_MAX: usize = libc::PATH_MAX as usize;
11    #[cfg(linux_raw)]
12    const PATH_MAX: usize = linux_raw_sys::general::PATH_MAX as usize;
13
14    mkdirat(&dir, "a", Mode::RUSR | Mode::XUSR | Mode::WUSR).unwrap();
15
16    let mut long_path = String::new();
17    for _ in 0..PATH_MAX / 5 {
18        long_path.push_str("a/../");
19    }
20
21    let mut too_long_path = String::new();
22    for _ in 0..PATH_MAX / 4 {
23        too_long_path.push_str("a/../");
24    }
25
26    let _ = openat(&dir, &long_path, OFlags::RDONLY, Mode::empty()).unwrap();
27    let _ = openat(&dir, &too_long_path, OFlags::RDONLY, Mode::empty()).unwrap_err();
28}
29