BSD syscall#364
svc · unix #364
lchown
chown variant that operates on a symbolic link itself rather than its target.
Prototype
int lchown(user_addr_t path, uid_t owner, gid_t group);Returns: int
Arguments
| Name | Type | Dir | Description |
|---|---|---|---|
| path | user_addr_t | - | |
| owner | uid_t | - | |
| group | gid_t | - |
Version history
| XNU tag | macOS | # |
|---|---|---|
| xnu-1456.1.26 | macOS 10.6 Snow Leopard | 364 |
| xnu-1486.2.11 | — | 364 |
| xnu-1504.15.3 | — | 364 |
| xnu-1504.3.12 | — | 364 |
| xnu-1504.7.4 | — | 364 |
| xnu-1504.9.17 | — | 364 |
| xnu-1504.9.26 | — | 364 |
| xnu-1504.9.37 | — | 364 |
Notes
Useful when a tool needs to restore link ownership during archive extraction (tar, cp -p). On APFS symlink ownership is stored alongside the link metadata.
Detection
ES NOTIFY_SETOWNER with the link vnode.
Related APIs
chownfchownatsymlinklstat