fix: getHostByName

- added error handling to avoid panics

network.go

@@ -5,8 +5,15 @@ import (
 	"net"
 )
 
-func getHostByName(name string) string {
-	addrs, _ := net.LookupHost(name)
-	//TODO: add error handing when release v3 comes out
-	return addrs[rand.Intn(len(addrs))]
+const NUM_TRIES = 3
+
+func getHostByName(name string) (string, error) {
+	err := error(nil)
+	addrs := []string{}
+	for tries := NUM_TRIES; tries > 0; tries-- {
+		if addrs, err = net.LookupHost(name); err == nil {
+			return addrs[rand.Intn(len(addrs))], nil
+		}
+	}
+	return "", err
 }