}

// badCIDRs returns true if cidrs is a non-empty list of CIDRs, all of wrongFamily.
func badCIDRs(cidrs []string, wrongFamily netutils.IPFamily) bool {
	if len(cidrs) == 0 {
		return false
	}
	for _, cidr := range cidrs {
		if netutils.IPFamilyOfCIDRString(cidr) != wrongFamily {
			return false
		}
	}
	return true
}