import ("github.com/custompbx/hepparser""net"    )constmaxPktLen=8192constaddr="127.0.0.1:9060"funcListener() {ua,err:=net.ResolveUDPAddr("udp",addr)iferr!=nil {return        }uc,err:=net.ListenUDP("udp",ua)iferr!=nil {return        }for {buf:=make([]byte,maxPktLen)n,err:=uc.Read(buf)iferr!=nil {log.Printf("%v\n return",err)return            }elseifn>maxPktLen {continue            }goparser(buf[:n])        }    }funcparser(packet) {hepPacket,err:=hepparser.DecodeHEP(packet)iferr!=nil {log.Println(err)return        }// Do whatever with packet -- hepPacket    }