Function nc::fchown

pub fn fchown(fd: i32, user: uid_t, group: gid_t) -> Result<(), Errno>

Change ownership of a file.

let filename = "/tmp/nc-fchown";
let ret = nc::openat(nc::AT_FDCWD, filename, nc::O_CREAT | nc::O_WRONLY | nc::O_TRUNC, 0o644);
assert!(ret.is_ok());
let fd = ret.unwrap();
let ret = nc::fchown(fd, 0, 0);
assert!(ret.is_err());
assert_eq!(ret, Err(nc::EPERM));
assert!(nc::close(fd).is_ok());
assert!(nc::unlinkat(nc::AT_FDCWD, filename, 0).is_ok());