Convert 32 bitwise IP representation to string

ip32convert.go

package main

import (
	"fmt"
	"math"
	"strconv"
	"strings"
)

func main() {
	ip := "172.30.33.232"
	fmt.Printf("ip: %s\n", ip)

	ipDigitsRaw := strings.Split(ip, ".")

	var ipDigits []uint64
	for _, ch := range ipDigitsRaw {
		dig, _ := strconv.ParseUint(ch, 10, 0)
		ipDigits = append(ipDigits, dig)
	}

	ipInt := ipDigits[0]*uint64(math.Pow(256, 3)) +
		ipDigits[1]*uint64(math.Pow(256, 2)) +
		ipDigits[2]*uint64(math.Pow(256, 1)) +
		ipDigits[3]*uint64(math.Pow(256, 0))

	fmt.Printf("ip: %d\n", ipInt)

	fmt.Printf("%d.%d.%d.%d", ipInt>>24, ipInt>>16&0xff, ipInt>>8&0xff, ipInt&0xff)

	fmt.Println()
}