checking in some WIP

* added some netx funcs
* added netx/dnsx
* currently updating docs and adding *x funcs to sprigx

netx/funcs_test.go

@@ -7,6 +7,29 @@ import (
 	"testing"
 )
 
+func TestFuncsDns(t *testing.T) {
+
+	var err error
+	var domBin []byte
+	var domStr string
+	var domEx string = "foo.r00t2.io"
+
+	if domBin, err = DnsStrToWire(domEx); err != nil {
+		t.Fatal(err)
+	}
+	t.Logf("Domain %s to wire: %#x\n", domEx, domBin)
+	if domStr, err = DnsWireToStr(domBin); err != nil {
+		t.Fatal(err)
+	}
+	t.Logf("Domain wire %#x to string: %s\n", domBin, domStr)
+	if domStr != domEx {
+		t.Fatalf("DNS str wrong (%s != %s)\n)", domStr, domEx)
+	}
+	t.Logf("Domain string %s matches %s", domStr, domEx)
+
+	return
+}
+
 func TestFuncsIP(t *testing.T) {
 
 	var err error