20 May 2016

go获取机器的mac地址和ip

package main

import (
    "fmt"
    "net"
)

func getMacAddrs() (macAddrs []string) {
    netInterfaces, err := net.Interfaces()
    if err != nil {
        fmt.Printf("fail to get net interfaces: %v", err)
        return macAddrs
    }

    for _, netInterface := range netInterfaces {
        macAddr := netInterface.HardwareAddr.String()
        if len(macAddr) == 0 {
            continue
        }

        macAddrs = append(macAddrs, macAddr)
    }
    return macAddrs
}

func getIPs() (ips []string) {

    interfaceAddr, err := net.InterfaceAddrs()
    if err != nil {
        fmt.Printf("fail to get net interface addrs: %v", err)
        return ips
    }

    for _, address := range interfaceAddr {
        ipNet, isValidIpNet := address.(*net.IPNet)
        if isValidIpNet && !ipNet.IP.IsLoopback() {
            if ipNet.IP.To4() != nil {
                ips = append(ips, ipNet.IP.String())
            }
        }
    }
    return ips
}

func main() {
    fmt.Printf("mac addrs: %q\n", getMacAddrs())
    fmt.Printf("ips: %q\n", getIPs())
}