// Throw away terminating NUL.
	if n > 0 && buf[n-1] == '\x00' {
		n--
	}
	return string(buf[0:n]), nil
}

func SysctlUint32(name string) (uint32, error) {
	return SysctlUint32Args(name)
}

func SysctlUint32Args(name string, args ...int) (uint32, error) {
	mib, err := sysctlmib(name, args...)
	if err != nil {
		return 0, err
	}

	n := uintptr(4)
	buf := make([]byte, 4)