1 #![expect(unsafe_op_in_unsafe_fn, reason = "old code, not worth updating yet")]
2 
3 use std::{env, process};
4 use test_programs::preview1::{assert_errno, open_scratch_directory};
5 
6 unsafe fn test_close_preopen(dir_fd: wasip1::Fd) {
7     let pre_fd: wasip1::Fd = (libc::STDERR_FILENO + 1) as wasip1::Fd;
8 
9     assert!(dir_fd > pre_fd, "dir_fd number");
10 
11     // Try to close a preopened directory handle.
12     wasip1::fd_close(pre_fd).expect("closing a preopened file descriptor");
13 
14     // Ensure that dir_fd is still open.
15     let dir_fdstat = wasip1::fd_fdstat_get(dir_fd).expect("failed fd_fdstat_get");
16     assert_eq!(
17         dir_fdstat.fs_filetype,
18         wasip1::FILETYPE_DIRECTORY,
19         "expected the scratch directory to be a directory",
20     );
21 
22     // Ensure that pre_fd is closed.
23     assert_errno!(
24         wasip1::fd_fdstat_get(pre_fd).expect_err("failed fd_fdstat_get"),
25         wasip1::ERRNO_BADF
26     );
27 }
28 
29 fn main() {
30     let mut args = env::args();
31     let prog = args.next().unwrap();
32     let arg = if let Some(arg) = args.next() {
33         arg
34     } else {
35         eprintln!("usage: {prog} <scratch directory>");
36         process::exit(1);
37     };
38 
39     // Open scratch directory
40     let dir_fd = match open_scratch_directory(&arg) {
41         Ok(dir_fd) => dir_fd,
42         Err(err) => {
43             eprintln!("{err}");
44             process::exit(1)
45         }
46     };
47 
48     // Run the tests.
49     unsafe { test_close_preopen(dir_fd) }
50 }
51