31 lines
664 B
Go
31 lines
664 B
Go
package weavedns
|
|
|
|
import (
|
|
"github.com/miekg/dns"
|
|
"net"
|
|
)
|
|
|
|
type MDNSServer struct {
|
|
sendconn *net.UDPConn
|
|
}
|
|
|
|
func NewMDNSServer() (*MDNSServer, error) {
|
|
//log.Println("minimalServer sending:", buf)
|
|
// This is a bit of a kludge - per the RFC we should send responses from 5353, but that doesn't seem to work
|
|
sendconn, err := net.ListenUDP("udp4", &net.UDPAddr{IP: net.IPv4zero, Port: 0})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
retval := &MDNSServer{sendconn: sendconn}
|
|
return retval, nil
|
|
}
|
|
|
|
func (s *MDNSServer) SendResponse(m *dns.Msg) error {
|
|
buf, err := m.Pack()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = s.sendconn.WriteTo(buf, ipv4Addr)
|
|
return err
|
|
}
|