Golang 模拟ping操作

package main

import (
    "fmt"
    "github.com/go-ping/ping"
    "os/exec"
    "time"
)

func main() {
    pingTest("192.168.1.1")
    pingTest("8.8.8.8")
    conn, err := PingConn("8.8.8.8")
    fmt.Println(conn, err)
}

func PingConn(addr string) (bool, error) {
    Command := fmt.Sprintf("ping -c 1 -W 3 %s > /dev/null && echo true || echo false", addr)
    output, err := exec.Command("/bin/sh","-c", Command).Output()
    return string(output) == "true\n", err
}

func pingTest(ip string)  {
    pinger, err := ping.NewPinger(ip)
    if err != nil {
        panic(err)
    }
    pinger.Debug = true
    pinger.OnFinish = func(statistics *ping.Statistics) {
        fmt.Printf("OnFinish: %#v\n", statistics)
    }
    pinger.OnRecv = func(packet *ping.Packet) {
        fmt.Printf("OnRecv: %#v\n", packet)
    }
    pinger.Timeout = time.Second * 3
    pinger.Count = 3
    pinger.Run() // blocks until finished
}