lints/lint_subject_contains_reserved_arpa_ip.go
func reversedLabelsToIPv4(labels []string) net.IP {
	var buf strings.Builder

	// If there aren't the right number of labels, it isn't an IPv4 address.
	if len(labels) != rdnsIPv4Labels {
		return nil
	}

	// An IPv4 address is represented as four groups of bytes separated by '.'
	for i := len(labels) - 1; i >= 0; i-- {
		buf.WriteString(labels[i])
		if i != 0 {
			buf.WriteString(".")
		}
	}
	return net.ParseIP(buf.String())
}
func reversedLabelsToIPv4(labels []string) net.IP {
	var buf strings.Builder

	// If there aren't the right number of labels, it isn't an IPv4 address.
	if len(labels) != rdnsIPv4Labels {
		return nil
	}

	// An IPv4 address is represented as four groups of bytes separated by '.'
	for i := len(labels) - 1; i >= 0; i-- {
		buf.WriteString(labels[i])
		if i != 0 {
			buf.WriteString(".")
		}
	}
	return net.ParseIP(buf.String())
}
func reversedLabelsToIPv4 ( labels [ ] string ) net . IP { var buf strings . Builder // If there aren't the right number of labels, it isn't an IPv4 address. if len ( labels ) != rdnsIPv4Labels { return nil } // An IPv4 address is represented as four groups of bytes separated by '.' for i := len ( labels ) - 1 ; i >= 0 ; i -- { buf . WriteString ( labels [ i ] ) if i != 0 { buf . WriteString ( " " ) } } return net . ParseIP ( buf . String ( ) ) }
// reversedLabelsToIPv4 reverses the provided labels (assumed to be 4 labels,
// one per byte of the IPv6 address) and constructs an IPv4 address, returning
// the result of calling net.ParseIP for the constructed address.
reversedLabelsToIPv4 reverses the provided labels ( assumed to be 4 labels one per byte of the IPv6 address ) and constructs an IPv4 address returning the result of calling net . ParseIP for the constructed address .