better response format and yggdrasilctl printing

src/yggdrasil/admin.go

@@ -308,13 +308,14 @@ func (a *admin) init(c *Core, listenaddr string) {
 		}
 		result, err := a.admin_dhtPing(in["key"].(string), in["coords"].(string), in["target"].(string))
 		if err == nil {
-			infos := make([]map[string]string, 0, len(result.Infos))
+			infos := make(map[string]map[string]string, len(result.Infos))
 			for _, dinfo := range result.Infos {
 				info := map[string]string{
 					"key":    hex.EncodeToString(dinfo.key[:]),
 					"coords": fmt.Sprintf("%v", dinfo.coords),
 				}
-				infos = append(infos, info)
+				addr := net.IP(address_addrForNodeID(getNodeID(&dinfo.key))[:]).String()
+				infos[addr] = info
 			}
 			return admin_info{"nodes": infos}, nil
 		} else {

yggdrasilctl.go

@@ -107,7 +107,7 @@ func main() {
 		switch strings.ToLower(req["request"].(string)) {
 		case "dot":
 			fmt.Println(res["dot"])
-		case "help", "getpeers", "getswitchpeers", "getdht", "getsessions":
+		case "help", "getpeers", "getswitchpeers", "getdht", "getsessions", "dhtping":
 			maxWidths := make(map[string]int)
 			var keyOrder []string
 			keysOrdered := false
@@ -296,17 +296,6 @@ func main() {
 					fmt.Println("-", v)
 				}
 			}
-		case "dhtping":
-			if _, ok := res["nodes"]; !ok {
-				fmt.Println("No nodes found")
-			} else if res["nodes"] == nil {
-				fmt.Println("No nodes found")
-			} else {
-				for _, v := range res["nodes"].([]interface{}) {
-					m := v.(map[string]interface{})
-					fmt.Println("-", m["key"], m["coords"])
-				}
-			}
 		default:
 			if json, err := json.MarshalIndent(recv["response"], "", "  "); err == nil {
 				fmt.Println(string(json))