golang 远程唤醒开机实例

package main

import (
   "fmt"
   "github.com/sabhiram/go-wol"
   "io"
   "log"
   "net"
   "net/http"
   "time"
)

func main() {
   http.HandleFunc("/makeUp", func(w http.ResponseWriter, r *http.Request) {
      macAddr := r.FormValue("mac")
      ip := r.FormValue("ip")
      secret := r.FormValue("secret")
      if secret != "407787759" {
         io.WriteString(w, "
非常操作！
")
         return
      }

      if ip != "" {
         b := isping(ip)
         if b {
            io.WriteString(w, "
已开机！
")
            return
         }
      }
      log.Println(macAddr, ip, secret)
      wakeUp(macAddr)
      io.WriteString(w, "
开机指令发送成功！请稍候...
")
   })

   http.ListenAndServe(":2019", nil)

}
func wakeUp(macAddr string) {
   var localAddr *net.UDPAddr

   localAddr, _ = ipFromInterface("eno5")

   udpAddr, err := net.ResolveUDPAddr("udp", "255.255.255.255:9")

   if err != nil {
      panic(err)
   }
   mp, err := wol.New(macAddr)
   if err != nil {
      panic(err)
   }

   bs, err := mp.Marshal()
   if err != nil {
      panic(err)
   }

   conn, err := net.DialUDP("udp", localAddr, udpAddr)
   if err != nil {
      panic(err)
   }
   defer conn.Close()

   n, err := conn.Write(bs)

   if err == nil && n != 102 {
      err = fmt.Errorf("magic packet sent was %d bytes (expected 102 bytes sent)", n)
   }
   fmt.Printf("Magic packet sent successfully to %s\n", macAddr)

}

// ipFromInterface returns a `*net.UDPAddr` from a network interface name.
func ipFromInterface(iface string) (*net.UDPAddr, error) {
   ief, err := net.InterfaceByName(iface)
   if err != nil {
      return nil, err
   }

   addrs, err := ief.Addrs()
   if err == nil && len(addrs) <= 0 {
      err = fmt.Errorf("no address associated with interface %s", iface)
   }
   if err != nil {
      return nil, err
   }

   // Validate that one of the addrs is a valid network IP address.
   for _, addr := range addrs {
      switch ip := addr.(type) {
      case *net.IPNet:
         // Verify that the DefaultMask for the address we want to use exists.
         if ip.IP.DefaultMask() != nil {
            return &net.UDPAddr{
               IP: ip.IP,
            }, nil
         }
      }
   }

   return nil, fmt.Errorf("no address associated with interface %s", iface)

}

func isping(ip string) bool {
   recvBuf1 := make([]byte, 2048)
   payload := []byte{0x08, 0x00, 0x4d, 0x4b, 0x00, 0x01, 0x00, 0x10, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69}
   Time, _ := time.ParseDuration("1s")
   conn, err := net.DialTimeout("ip4:icmp", ip, Time)
   if err != nil {
      fmt.Println("bibi")
      return false
   }
   _, err = conn.Write(payload)
   if err != nil {
      return false
   }
   conn.SetReadDeadline(time.Now().Add(time.Second * 2))
   num, err := conn.Read(recvBuf1[0:])
   conn.SetReadDeadline(time.Time{})
   if string(recvBuf1[0:num]) != "" {
      return true
   }

   return false
}

通过web访问程序，让它发出魔术包唤醒同网段的其它PC

要远程开机的PC要设置网卡唤醒功能！

然后通过http://您的程序运行的IP:2019/makeUp?secret=407787759&mac=00:00:59:96:CC:0c(你要开机的MAC地址)

转载于:https://my.oschina.net/wgc2010/blog/2961109