fix(oohelperd): reduce differences with legacy helper (#504)

Part of https://github.com/ooni/probe/issues/1707
2021-09-27 08:13:30 +02:00 · 2021-09-27 08:13:30 +02:00 · 985c1ba761
commit 985c1ba761
parent 3cb782f0a2
3 changed files with 18 additions and 3 deletions
--- a/internal/cmd/oohelperd/internal/webconnectivity/dns.go
+++ b/internal/cmd/oohelperd/internal/webconnectivity/dns.go
@ -28,5 +28,8 @@ type DNSConfig struct {
 func DNSDo(ctx context.Context, config *DNSConfig) {
 	defer config.Wg.Done()
 	addrs, err := config.Resolver.LookupHost(ctx, config.Domain)
+	if addrs == nil {
+		addrs = []string{} // fix: the old test helper did that
+	}
 	config.Out <- CtrlDNSResult{Failure: newfailure(err), Addrs: addrs}
 }