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Fix client multicast sending on Windows #81

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Fix client multicast sending on Windows #81

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16 changes: 10 additions & 6 deletions client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -443,17 +443,21 @@ func (c *client) sendQuery(msg *dns.Msg) error {
return err
}
if c.ipv4conn != nil {
var wcm ipv4.ControlMessage
for ifi := range c.ifaces {
wcm.IfIndex = c.ifaces[ifi].Index
c.ipv4conn.WriteTo(buf, &wcm, ipv4Addr)
if err := c.ipv4conn.SetMulticastInterface(&c.ifaces[ifi]); err != nil {
// log.Printf("[WARN] mdns: Failed to set multicast interface: %v", err)
continue
}
c.ipv4conn.WriteTo(buf, nil, ipv4Addr)
}
}
if c.ipv6conn != nil {
var wcm ipv6.ControlMessage
for ifi := range c.ifaces {
wcm.IfIndex = c.ifaces[ifi].Index
c.ipv6conn.WriteTo(buf, &wcm, ipv6Addr)
if err := c.ipv6conn.SetMulticastInterface(&c.ifaces[ifi]); err != nil {
// log.Printf("[WARN] mdns: Failed to set multicast interface: %v", err)
continue
}
c.ipv6conn.WriteTo(buf, nil, ipv6Addr)
}
}
return nil
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