Returns the target stored in the symlink at path.

Wraps readlink(2) with a 1 KiB buffer. readlink does not null- terminate, so this function copies exactly the returned byte count into the result string. Targets longer than 1 KiB are silently truncated — the syscall returns a partial result rather than failing.

Errors

Returns Err(IoError) if path is not a symlink (EINVAL), missing (ENOENT), or any other libc failure.