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chmod: implement special handling of directory setuid/setgid

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This commit is contained in:
Michael Debertol 2021-08-16 21:56:09 +02:00
parent 9697c89d17
commit 15b40f6aa2
4 changed files with 66 additions and 36 deletions
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25
tests/by-util/test_chmod.rs
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@ -1,5 +1,5 @@
use crate::common::util::*;
use std::fs::{metadata, set_permissions, OpenOptions};
use std::fs::{metadata, set_permissions, OpenOptions, Permissions};
use std::os::unix::fs::{OpenOptionsExt, PermissionsExt};
use std::sync::Mutex;
@ -490,3 +490,26 @@ fn test_chmod_strip_minus_from_mode() {
assert_eq!(test.1, args.join(" "));
}
}
#[test]
fn test_chmod_keep_setgid() {
for &(from, arg, to) in &[
(0o7777, "777", 0o46777),
(0o7777, "=777", 0o40777),
(0o7777, "0777", 0o46777),
(0o7777, "=0777", 0o40777),
(0o7777, "00777", 0o40777),
(0o2444, "a+wx", 0o42777),
(0o2444, "a=wx", 0o42333),
(0o1444, "g+s", 0o43444),
(0o4444, "u-s", 0o40444),
(0o7444, "a-s", 0o41444),
] {
let (at, mut ucmd) = at_and_ucmd!();
at.mkdir("dir");
set_permissions(at.plus("dir"), Permissions::from_mode(from)).unwrap();
let r = ucmd.arg(arg).arg("dir").succeeds();
println!("{}", r.stderr_str());
assert_eq!(at.metadata("dir").permissions().mode(), to);
}
}