Go int2ip()

1 개요[ | ]

Go int2ip()

Go

CPU

-1.0s

MEM

-0M

-1.0s

Copy

package main

import (
	"encoding/binary"
	"fmt"
	"net"
)

func int2ip(ipInt int) string {
	if ipInt < 0 || ipInt > 4294967295 {
		return ""
	}
	ip := make(net.IP, 4)
	binary.BigEndian.PutUint32(ip, uint32(ipInt))
	return ip.String()
}
func main() {
	fmt.Println(int2ip(0))          // 0.0.0.0
	fmt.Println(int2ip(1))          // 0.0.0.1
	fmt.Println(int2ip(256))        // 0.0.1.0
	fmt.Println(int2ip(2270164560)) // 135.79.246.80
	fmt.Println(int2ip(4294967295)) // 255.255.255.255

	fmt.Println(int2ip(-1))         // ""
	fmt.Println(int2ip(4294967296)) // ""
}

0.0.0.0
0.0.0.1
0.0.1.0
135.79.246.80
255.255.255.255

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