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fix fakedns instance resolution leak by avoid using require

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Shelikhoo 2022-01-09 22:45:50 +00:00 committed by Xiaokang Wang (Shelikhoo)
parent a10f7b320f
commit 17a5aaebe2
1 changed files with 6 additions and 5 deletions
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11
app/dispatcher/fakednssniffer.go
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@ -17,12 +17,13 @@ import (
// newFakeDNSSniffer Creates a Fake DNS metadata sniffer // newFakeDNSSniffer Creates a Fake DNS metadata sniffer
func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error) { func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error) {
var fakeDNSEngine dns.FakeDNSEngine var fakeDNSEngine dns.FakeDNSEngine
err := core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) { {
fakeDNSEngine = fdns fakeDNSEngineFeat := core.MustFromContext(ctx).GetFeature(fakeDNSEngine)
}) if fakeDNSEngineFeat != nil {
if err != nil { fakeDNSEngine = fakeDNSEngineFeat.(dns.FakeDNSEngine)
return protocolSnifferWithMetadata{}, err
} }
}
if fakeDNSEngine == nil { if fakeDNSEngine == nil {
errNotInit := newError("FakeDNSEngine is not initialized, but such a sniffer is used").AtError() errNotInit := newError("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
return protocolSnifferWithMetadata{}, errNotInit return protocolSnifferWithMetadata{}, errNotInit