package ip

import (
	"encoding/binary"
	"net"
)

// isUp Interface is up
func isUp(v net.Flags) bool {
	return v&net.FlagUp == net.FlagUp
}

// ToLong Converts a string containing an (IPv4) Internet Protocol dotted address into a long integer
func ToLong(ipAddress string) uint32 {
	ip := net.ParseIP(ipAddress)
	if ip == nil {
		return 0
	}
	return binary.BigEndian.Uint32(ip.To4())
}

// FromLong Converts a long integer address into a string in (IPv4) Internet standard dotted format
func FromLong(properAddress uint32) string {
	ipByte := make([]byte, 4)
	binary.BigEndian.PutUint32(ipByte, properAddress)
	ip := net.IP(ipByte)
	return ip.String()
}