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Fix ECS serialization

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Star Brilliant
2017-10-04 13:18:19 +08:00
parent 8cede6e423
commit dc242ed284
1 changed files with 3 additions and 1 deletions
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4
json-dns/marshal.go
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@@ -80,7 +80,9 @@ func Marshal(msg *dns.Msg) *Response {
edns0 := option.(*dns.EDNS0_SUBNET)
clientAddress := edns0.Address
if clientAddress == nil {
clientAddress = net.IPv4(0, 0, 0, 0)
clientAddress = net.IP { 0, 0, 0, 0 }
} else if ipv4 := clientAddress.To4(); ipv4 != nil {
clientAddress = ipv4
}
scopeMask := net.CIDRMask(int(edns0.SourceScope), len(clientAddress) * 8)
resp.EdnsClientSubnet = clientAddress.Mask(scopeMask).String() + "/" + strconv.Itoa(int(edns0.SourceScope))