main does not create bindings

alter/vpnhole.go

+package alter
+
+import (
+	"fmt"
+)
+
+var ErrShutdown = fmt.Errorf("vpnhole was shutdown gracefully")
+
+type Config struct {
+	Addr                  string
+	SubscriptionsFilename string
+	Upstream              string
+	Start                 func() error
+	Stop                  func() error
+}
+
+func (c Config) String() string {
+	return fmt.Sprintf("Config{Addr: %s, SubscriptionsFilename: %s, Upstream: %s}", c.Addr, c.SubscriptionsFilename, c.Upstream)
+}
+
+// parse the flags and return the config struct with the values
+func ParseFlags() Config {
+	return Config{
+		Addr:                  ":53",
+		SubscriptionsFilename: "subs.list",
+		Upstream:              "1.1.1.1:53",
+
+		Start: func() error {
+			return nil
+		},
+		Stop: func() error {
+			return nil
+		},
+	}
+}