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// Copyright 2023-now by lifenjoiner. All rights reserved.
// Use of this source code is governed by a MIT license
// that can be found in the LICENSE file.
// The CLI.
package main
import (
"flag"
"log"
"time"
"github.com/lifenjoiner/dhcpdns"
)
func detect(d *dhcpdns.Detector) {
log.Printf("Targeting: %v", d.RemoteIPPort)
_ = d.Detect()
n, ip, DNS, err := d.Status()
log.Printf("Constancy: %v", n)
if err != nil {
log.Printf("Error: %v", err)
if ip != "" {
if n > 9 {
log.Print("Seems can't get DHCP DNS")
return
} else {
log.Print("Maybe DHCP temporarily failed, keep the last results")
}
}
}
log.Printf("Active local IP: %v", ip)
for _, dnsi := range DNS {
log.Printf("DHCP DNS: %v", dnsi.String())
}
}
// `Serve` acts like a daemon.
func main() {
var n, k int
flag.IntVar(&n, "n", -1, "Detecting rounds")
flag.IntVar(&k, "k", 9, "Keep rounds for the same active IP")
flag.Parse()
d4 := &dhcpdns.Detector{RemoteIPPort: "8.8.8.8:80"}
d6 := &dhcpdns.Detector{RemoteIPPort: "[2001:4860:4860::8888]:80"}
for ; n != 0; n-- {
if n%k == 0 {
d4.SetNewRound()
d6.SetNewRound()
}
detect(d4)
detect(d6)
if n == 1 {
break
}
time.Sleep(10 * time.Second)
}
}
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