Function nc::chdir

pub unsafe fn chdir<P: AsRef<Path>>(filename: P) -> Result<(), Errno>

Change working directory.

Example

let path = "/tmp";
// Open folder directly.
let ret = unsafe { nc::chdir(path) };
assert!(ret.is_ok());

let mut buf = [0_u8; nc::PATH_MAX as usize + 1];
let ret = unsafe { nc::getcwd(buf.as_mut_ptr() as usize, buf.len()) };
assert!(ret.is_ok());
// Remove null-terminal char.
let path_len = ret.unwrap() as usize - 1;
let new_cwd = std::str::from_utf8(&buf[..path_len]);
assert_eq!(new_cwd, Ok(path));