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Add a check for invalid/junk messages

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Signed-off-by: Santhosh Manohar <santhosh@docker.com>
This commit is contained in:
Santhosh Manohar 2016-02-15 22:01:29 -08:00
parent 4cb61841e4
commit 2fb14185cb
1 changed files with 3 additions and 0 deletions
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3
libnetwork/resolver.go
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@ -200,6 +200,9 @@ func (r *resolver) ServeDNS(w dns.ResponseWriter, query *dns.Msg) {
err error
)
if query == nil || len(query.Question) == 0 {
return
}
name := query.Question[0].Name
if query.Question[0].Qtype == dns.TypeA {
resp, err = r.handleIPv4Query(name, query)