Hotfix for OpenBSD and other OS whose init system is not supported yet

.travis.yml

@@ -33,7 +33,7 @@ script:
   - zip -9 -r dnscrypt-proxy-win64-${TRAVIS_TAG:-dev}.zip win64
 
   - go clean
-  - env GOOS=openbsd GOARCH=386 go build -ldflags="-s -w"
+  - env GO386=387 GOOS=openbsd GOARCH=386 go build -ldflags="-s -w"
   - mkdir openbsd-i386
   - ln dnscrypt-proxy openbsd-i386/
   - ln ../LICENSE dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt openbsd-i386/

dnscrypt-proxy/main.go

@@ -61,7 +61,8 @@ func main() {
 	app := &App{}
 	svc, err := service.New(app, svcConfig)
 	if err != nil {
-		dlog.Fatal(err)
+		svc = nil
+		dlog.Debug(err)
 	}
 	app.proxy = Proxy{}
 	if err := ConfigLoad(&app.proxy, svcFlag, "dnscrypt-proxy.toml"); err != nil {
@@ -84,9 +85,13 @@ func main() {
 		}
 		return
 	}
+	if svc != nil {
 		if err = svc.Run(); err != nil {
 			dlog.Fatal(err)
 		}
+	} else {
+		app.Start(nil)
+	}
 }
 
 func (app *App) Start(service service.Service) error {
@@ -99,13 +104,21 @@ func (app *App) Start(service service.Service) error {
 	}
 	app.quit = make(chan struct{})
 	app.wg.Add(1)
+	if service != nil {
 		go func() {
+			app.AppMain(&proxy)
+		}()
+	} else {
+		app.AppMain(&proxy)
+	}
+	return nil
+}
+
+func (app *App) AppMain(proxy *Proxy) {
 	proxy.StartProxy()
 	<-app.quit
 	dlog.Notice("Quit signal received...")
 	app.wg.Done()
-	}()
-	return nil
 }
 
 func (app *App) Stop(service service.Service) error {