duanputian5341 2017-10-26 18:02
浏览 119
已采纳

Golang将gopacket udpLayer转换为字节并发送

I am using the gopacket/layers api to extract upd data out of a packet then sending it again via another udp stream, I am not sure if am doing this correct or not, also have been getting some errors, if anyone can point me in the correct direction that would be great my code

conn, err := net.Dial("udp", 1.1.1.1)

udp, _ := updpLayer.(*layers.UDP)

/*now if i send it like this*/

conn.Write(udp)
/*i get the errors: cannot use udp (type *layers.UDP) as type []byte in argument to conn.Write*/

/*I tried to convert to bytes using unsafe*/

con := *(*[unsafe.Sizeof(udp)]byte)(unsafe.Pointer(&udp))

/* I get cannot use conv (type [8]byte) as type []byte in argument to conn.Write */

/* I used ecoding/gob, but is it sending it as a byte stream?*/

encoder := gob.NewEncoder(conn)
encoder.Encode(udp) //or Encode(udp)
  • 写回答

1条回答 默认 最新

  • dqdtgiw4736 2017-10-27 11:18
    关注

    updpLayer doesn't represent the data directly, so trying to convert it to bytes is pointless. Read the Contents or Payload field instead.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥20 西门子S7-Graph,S7-300,梯形图
  • ¥50 用易语言http 访问不了网页
  • ¥50 safari浏览器fetch提交数据后数据丢失问题
  • ¥15 matlab不知道怎么改,求解答!!
  • ¥15 永磁直线电机的电流环pi调不出来
  • ¥15 用stata实现聚类的代码
  • ¥15 请问paddlehub能支持移动端开发吗?在Android studio上该如何部署?
  • ¥20 docker里部署springboot项目,访问不到扬声器
  • ¥15 netty整合springboot之后自动重连失效
  • ¥15 悬赏!微信开发者工具报错,求帮改