Include both IPv4 and IPv6 links

api/api.go

@@ -141,19 +141,12 @@ func (a *API) DefaultHandler(w http.ResponseWriter, r *http.Request) *appError {
 		return internalServerError(err)
 	}
 
-	IsV6 := true
-	ip := net.ParseIP(r.Header.Get(IP_HEADER))
-	if ip.To4() != nil {
-		IsV6 = false
-	}
-
 	var data = struct {
 		IP     string
-		IsV6   bool
 		JSON   string
 		Header http.Header
 		Cmd
-	}{ip.String(), IsV6, string(b), r.Header, cmd}
+	}{r.Header.Get(IP_HEADER), string(b), r.Header, cmd}
 
 	if err := t.Execute(w, &data); err != nil {
 		return internalServerError(err)

index.html

@@ -28,6 +28,9 @@
         margin-top: 10px;
         text-align: center;
       }
+      #footer a {
+	margin: 0 10px;
+      }
       .ip {
         border: 1px solid #cbcbcb;
         background: #f2f2f2;
@@ -71,9 +74,8 @@
       </table>
     </div>
     <div id="footer">
-    {{ if .IsV6 }}
       <a href="http://v4.ifconfig.co">IPv4 page</a>
-    {{end}}
+      <a href="http://v6.ifconfig.co">IPv6 page</a>
     </div>
     <a href="https://github.com/martinp/ifconfigd"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png" alt="Fork me on GitHub"></a>
   </body>