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cp: refuse to copy symlink over itself

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Dan Hipschman 2025-04-11 12:24:52 -07:00 • committed by Sylvestre Ledru
parent d957e64999
commit e92e419a93
2 changed files with 32 additions and 1 deletions
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25
tests/by-util/test_cp.rs
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@ -5218,6 +5218,31 @@ mod same_file {
assert_eq!(symlink1, at.resolve_link(symlink2));
}
#[test]
fn test_same_symlink_to_itself_no_dereference() {
let scene = TestScenario::new(util_name!());
let at = &scene.fixtures;
at.write(FILE_NAME, CONTENTS);
at.symlink_file(FILE_NAME, SYMLINK_NAME);
scene
.ucmd()
.args(&["-P", SYMLINK_NAME, SYMLINK_NAME])
.fails()
.stderr_contains("are the same file");
}
#[test]
fn test_same_dangling_symlink_to_itself_no_dereference() {
let scene = TestScenario::new(util_name!());
let at = &scene.fixtures;
at.symlink_file("nonexistent_file", SYMLINK_NAME);
scene
.ucmd()
.args(&["-P", SYMLINK_NAME, SYMLINK_NAME])
.fails()
.stderr_contains("are the same file");
}
// the following tests tries to copy file to a hardlink of the same file with
// various options
#[test]