Function posish::fs::chmodat

pub fn chmodat<P: Arg, Fd: AsRawFd>(
    dirfd: &Fd, 
    path: P, 
    mode: Mode
) -> Result<()>

fchmodat(dirfd, path, mode, 0)

The flags argument is fixed to 0, so AT_SYMLINK_NOFOLLOW is not supported.

Platform support for this flag varies widely.

Note that this implementation does not support O_PATH file descriptors, even on platforms where the host libc emulates it.