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Check msg is not nil before access Question field

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This commit is contained in:
Cuong Manh Le
2023-04-29 13:21:57 +07:00
committed by Cuong Manh Le
parent b267572b38
commit 704bc27dba
3 changed files with 3 additions and 3 deletions
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resolver.go
+1 -1
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@@ -117,7 +117,7 @@ func (r *legacyResolver) Resolve(ctx context.Context, msg *dns.Msg) (*dns.Msg, e
// See comment in (*dotResolver).resolve method.
dialer := newDialer(net.JoinHostPort(bootstrapDNS, "53"))
dnsTyp := uint16(0)
if len(msg.Question) > 0 {
if msg != nil && len(msg.Question) > 0 {
dnsTyp = msg.Question[0].Qtype
}
_, udpNet := r.uc.netForDNSType(dnsTyp)