golang将ip地址转换成整数的代码

// Convert uint to net.IP http://www.

func inet_ntoa(ipnr int64) net.IP {

var bytes [4]byte

bytes[0] = byte(ipnr & 0xFF)

bytes[1] = byte((ipnr >> 8) & 0xFF)

bytes[2] = byte((ipnr >> 16) & 0xFF)

bytes[3] = byte((ipnr >> 24) & 0xFF)

return net.IPv4(bytes[3],bytes[2],bytes[1],bytes[0])

}

// Convert net.IP to int64 ,  http://www.

func inet_aton(ipnr net.IP) int64 {

bits := strings.Split(ipnr.String(), ".")

b0, _ := strconv.Atoi(bits[0])

b1, _ := strconv.Atoi(bits[1])

b2, _ := strconv.Atoi(bits[2])

b3, _ := strconv.Atoi(bits[3])

var sum int64

sum += int64(b0) << 24

sum += int64(b1) << 16

sum += int64(b2) << 8

sum += int64(b3)

return sum

}

//该代码片段来自于: http://www./codes/go/8732