Split yggdrasilctl code into separate functions (refactoring) (#815)

* Move yggdrasilctl responses to separate functions

* Move yggdrasilctl request switch to separate function

* Add empty lines

* Create struct CmdLine for yggdrasilctl

* Move yggdrasilctl command line parsing to separate func

* Turn struct CmdLine into CmdLineEnv

* Rename func parseCmdLine to parseFlagsAndArgs

* Move yggdrasilctl endpoint setting logic into separate func

* Function to create yggdrasilctl CmdLineEnv

* Reorder code

* Move struct fields into lines

* Turn yggdrasilctl CmdLineEnv funcs to methods

* Move yggdrasilctl connection code to separate func

* Rename functions

* Move yggdrasilctl command line env to separate mod

* Move yggdrasilctl command line env to main mod

* Run goimports

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

cmd/yggdrasilctl/cmd_line_env.go

@@ -0,0 +1,94 @@
+package main
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/hjson/hjson-go"
+	"golang.org/x/text/encoding/unicode"
+
+	"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
+)
+
+type CmdLineEnv struct {
+	args                 []string
+	endpoint, server     string
+	injson, verbose, ver bool
+}
+
+func newCmdLineEnv() CmdLineEnv {
+	var cmdLineEnv CmdLineEnv
+	cmdLineEnv.endpoint = defaults.GetDefaults().DefaultAdminListen
+	return cmdLineEnv
+}
+
+func (cmdLineEnv *CmdLineEnv) parseFlagsAndArgs() {
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s [options] command [key=value] [key=value] ...\n\n", os.Args[0])
+		fmt.Println("Options:")
+		flag.PrintDefaults()
+		fmt.Println()
+		fmt.Println("Please note that options must always specified BEFORE the command\non the command line or they will be ignored.")
+		fmt.Println()
+		fmt.Println("Commands:\n  - Use \"list\" for a list of available commands")
+		fmt.Println()
+		fmt.Println("Examples:")
+		fmt.Println("  - ", os.Args[0], "list")
+		fmt.Println("  - ", os.Args[0], "getPeers")
+		fmt.Println("  - ", os.Args[0], "-v getSelf")
+		fmt.Println("  - ", os.Args[0], "setTunTap name=auto mtu=1500 tap_mode=false")
+		fmt.Println("  - ", os.Args[0], "-endpoint=tcp://localhost:9001 getDHT")
+		fmt.Println("  - ", os.Args[0], "-endpoint=unix:///var/run/ygg.sock getDHT")
+	}
+
+	server := flag.String("endpoint", cmdLineEnv.endpoint, "Admin socket endpoint")
+	injson := flag.Bool("json", false, "Output in JSON format (as opposed to pretty-print)")
+	verbose := flag.Bool("v", false, "Verbose output (includes public keys)")
+	ver := flag.Bool("version", false, "Prints the version of this build")
+
+	flag.Parse()
+
+	cmdLineEnv.args = flag.Args()
+	cmdLineEnv.server = *server
+	cmdLineEnv.injson = *injson
+	cmdLineEnv.verbose = *verbose
+	cmdLineEnv.ver = *ver
+}
+
+func (cmdLineEnv *CmdLineEnv) setEndpoint(logger *log.Logger) {
+	if cmdLineEnv.server == cmdLineEnv.endpoint {
+		if config, err := ioutil.ReadFile(defaults.GetDefaults().DefaultConfigFile); err == nil {
+			if bytes.Equal(config[0:2], []byte{0xFF, 0xFE}) ||
+				bytes.Equal(config[0:2], []byte{0xFE, 0xFF}) {
+				utf := unicode.UTF16(unicode.BigEndian, unicode.UseBOM)
+				decoder := utf.NewDecoder()
+				config, err = decoder.Bytes(config)
+				if err != nil {
+					panic(err)
+				}
+			}
+			var dat map[string]interface{}
+			if err := hjson.Unmarshal(config, &dat); err != nil {
+				panic(err)
+			}
+			if ep, ok := dat["AdminListen"].(string); ok && (ep != "none" && ep != "") {
+				cmdLineEnv.endpoint = ep
+				logger.Println("Found platform default config file", defaults.GetDefaults().DefaultConfigFile)
+				logger.Println("Using endpoint", cmdLineEnv.endpoint, "from AdminListen")
+			} else {
+				logger.Println("Configuration file doesn't contain appropriate AdminListen option")
+				logger.Println("Falling back to platform default", defaults.GetDefaults().DefaultAdminListen)
+			}
+		} else {
+			logger.Println("Can't open config file from default location", defaults.GetDefaults().DefaultConfigFile)
+			logger.Println("Falling back to platform default", defaults.GetDefaults().DefaultAdminListen)
+		}
+	} else {
+		cmdLineEnv.endpoint = cmdLineEnv.server
+		logger.Println("Using endpoint", cmdLineEnv.endpoint, "from command line")
+	}
+}

cmd/yggdrasilctl/main.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net"
 	"net/url"
@@ -15,10 +14,6 @@ import (
 	"strconv"
 	"strings"
 
-	"golang.org/x/text/encoding/unicode"
-
-	"github.com/hjson/hjson-go"
-	"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
 	"github.com/yggdrasil-network/yggdrasil-go/src/version"
 )
 
@@ -32,6 +27,7 @@ func main() {
 func run() int {
 	logbuffer := &bytes.Buffer{}
 	logger := log.New(logbuffer, "", log.Flags())
+
 	defer func() int {
 		if r := recover(); r != nil {
 			logger.Println("Fatal error:", r)
@@ -41,97 +37,24 @@ func run() int {
 		return 0
 	}()
 
-	endpoint := defaults.GetDefaults().DefaultAdminListen
+	cmdLineEnv := newCmdLineEnv()
+	cmdLineEnv.parseFlagsAndArgs()
 
-	flag.Usage = func() {
+	if cmdLineEnv.ver {
-		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s [options] command [key=value] [key=value] ...\n\n", os.Args[0])
-		fmt.Println("Options:")
-		flag.PrintDefaults()
-		fmt.Println()
-		fmt.Println("Please note that options must always specified BEFORE the command\non the command line or they will be ignored.")
-		fmt.Println()
-		fmt.Println("Commands:\n  - Use \"list\" for a list of available commands")
-		fmt.Println()
-		fmt.Println("Examples:")
-		fmt.Println("  - ", os.Args[0], "list")
-		fmt.Println("  - ", os.Args[0], "getPeers")
-		fmt.Println("  - ", os.Args[0], "-v getSelf")
-		fmt.Println("  - ", os.Args[0], "setTunTap name=auto mtu=1500 tap_mode=false")
-		fmt.Println("  - ", os.Args[0], "-endpoint=tcp://localhost:9001 getDHT")
-		fmt.Println("  - ", os.Args[0], "-endpoint=unix:///var/run/ygg.sock getDHT")
-	}
-	server := flag.String("endpoint", endpoint, "Admin socket endpoint")
-	injson := flag.Bool("json", false, "Output in JSON format (as opposed to pretty-print)")
-	verbose := flag.Bool("v", false, "Verbose output (includes public keys)")
-	ver := flag.Bool("version", false, "Prints the version of this build")
-	flag.Parse()
-	args := flag.Args()
-
-	if *ver {
 		fmt.Println("Build name:", version.BuildName())
 		fmt.Println("Build version:", version.BuildVersion())
 		fmt.Println("To get the version number of the running Yggdrasil node, run", os.Args[0], "getSelf")
 		return 0
 	}
 
-	if len(args) == 0 {
+	if len(cmdLineEnv.args) == 0 {
 		flag.Usage()
 		return 0
 	}
 
-	if *server == endpoint {
+	cmdLineEnv.setEndpoint(logger)
-		if config, err := ioutil.ReadFile(defaults.GetDefaults().DefaultConfigFile); err == nil {
-			if bytes.Equal(config[0:2], []byte{0xFF, 0xFE}) ||
-				bytes.Equal(config[0:2], []byte{0xFE, 0xFF}) {
-				utf := unicode.UTF16(unicode.BigEndian, unicode.UseBOM)
-				decoder := utf.NewDecoder()
-				config, err = decoder.Bytes(config)
-				if err != nil {
-					panic(err)
-				}
-			}
-			var dat map[string]interface{}
-			if err := hjson.Unmarshal(config, &dat); err != nil {
-				panic(err)
-			}
-			if ep, ok := dat["AdminListen"].(string); ok && (ep != "none" && ep != "") {
-				endpoint = ep
-				logger.Println("Found platform default config file", defaults.GetDefaults().DefaultConfigFile)
-				logger.Println("Using endpoint", endpoint, "from AdminListen")
-			} else {
-				logger.Println("Configuration file doesn't contain appropriate AdminListen option")
-				logger.Println("Falling back to platform default", defaults.GetDefaults().DefaultAdminListen)
-			}
-		} else {
-			logger.Println("Can't open config file from default location", defaults.GetDefaults().DefaultConfigFile)
-			logger.Println("Falling back to platform default", defaults.GetDefaults().DefaultAdminListen)
-		}
-	} else {
-		endpoint = *server
-		logger.Println("Using endpoint", endpoint, "from command line")
-	}
 
-	var conn net.Conn
+	conn := connect(cmdLineEnv.endpoint, logger)
-	u, err := url.Parse(endpoint)
-	if err == nil {
-		switch strings.ToLower(u.Scheme) {
-		case "unix":
-			logger.Println("Connecting to UNIX socket", endpoint[7:])
-			conn, err = net.Dial("unix", endpoint[7:])
-		case "tcp":
-			logger.Println("Connecting to TCP socket", u.Host)
-			conn, err = net.Dial("tcp", u.Host)
-		default:
-			logger.Println("Unknown protocol or malformed address - check your endpoint")
-			err = errors.New("protocol not supported")
-		}
-	} else {
-		logger.Println("Connecting to TCP socket", u.Host)
-		conn, err = net.Dial("tcp", endpoint)
-	}
-	if err != nil {
-		panic(err)
-	}
 	logger.Println("Connected")
 	defer conn.Close()
 
@@ -140,7 +63,7 @@ func run() int {
 	send := make(admin_info)
 	recv := make(admin_info)
 
-	for c, a := range args {
+	for c, a := range cmdLineEnv.args {
 		if c == 0 {
 			if strings.HasPrefix(a, "-") {
 				logger.Printf("Ignoring flag %s as it should be specified before other parameters\n", a)
@@ -176,7 +99,9 @@ func run() int {
 	if err := encoder.Encode(&send); err != nil {
 		panic(err)
 	}
+
 	logger.Printf("Request sent")
+
 	if err := decoder.Decode(&recv); err == nil {
 		logger.Printf("Response received")
 		if recv["status"] == "error" {
@@ -195,252 +120,16 @@ func run() int {
 			fmt.Println("Missing response body (malformed response?)")
 			return 1
 		}
-		req := recv["request"].(map[string]interface{})
 		res := recv["response"].(map[string]interface{})
 
-		if *injson {
+		if cmdLineEnv.injson {
 			if json, err := json.MarshalIndent(res, "", "  "); err == nil {
 				fmt.Println(string(json))
 			}
 			return 0
 		}
 
-		switch strings.ToLower(req["request"].(string)) {
+		handleAll(recv, cmdLineEnv.verbose)
-		case "dot":
-			fmt.Println(res["dot"])
-		case "list", "getpeers", "getswitchpeers", "getdht", "getsessions", "dhtping":
-			maxWidths := make(map[string]int)
-			var keyOrder []string
-			keysOrdered := false
-
-			for _, tlv := range res {
-				for slk, slv := range tlv.(map[string]interface{}) {
-					if !keysOrdered {
-						for k := range slv.(map[string]interface{}) {
-							if !*verbose {
-								if k == "box_pub_key" || k == "box_sig_key" || k == "nodeinfo" || k == "was_mtu_fixed" {
-									continue
-								}
-							}
-							keyOrder = append(keyOrder, fmt.Sprint(k))
-						}
-						sort.Strings(keyOrder)
-						keysOrdered = true
-					}
-					for k, v := range slv.(map[string]interface{}) {
-						if len(fmt.Sprint(slk)) > maxWidths["key"] {
-							maxWidths["key"] = len(fmt.Sprint(slk))
-						}
-						if len(fmt.Sprint(v)) > maxWidths[k] {
-							maxWidths[k] = len(fmt.Sprint(v))
-							if maxWidths[k] < len(k) {
-								maxWidths[k] = len(k)
-							}
-						}
-					}
-				}
-
-				if len(keyOrder) > 0 {
-					fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s  ", "")
-					for _, v := range keyOrder {
-						fmt.Printf("%-"+fmt.Sprint(maxWidths[v])+"s  ", v)
-					}
-					fmt.Println()
-				}
-
-				for slk, slv := range tlv.(map[string]interface{}) {
-					fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s  ", slk)
-					for _, k := range keyOrder {
-						preformatted := slv.(map[string]interface{})[k]
-						var formatted string
-						switch k {
-						case "bytes_sent", "bytes_recvd":
-							formatted = fmt.Sprintf("%d", uint(preformatted.(float64)))
-						case "uptime", "last_seen":
-							seconds := uint(preformatted.(float64)) % 60
-							minutes := uint(preformatted.(float64)/60) % 60
-							hours := uint(preformatted.(float64) / 60 / 60)
-							formatted = fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
-						default:
-							formatted = fmt.Sprint(preformatted)
-						}
-						fmt.Printf("%-"+fmt.Sprint(maxWidths[k])+"s  ", formatted)
-					}
-					fmt.Println()
-				}
-			}
-		case "gettuntap", "settuntap":
-			for k, v := range res {
-				fmt.Println("Interface name:", k)
-				if mtu, ok := v.(map[string]interface{})["mtu"].(float64); ok {
-					fmt.Println("Interface MTU:", mtu)
-				}
-				if tap_mode, ok := v.(map[string]interface{})["tap_mode"].(bool); ok {
-					fmt.Println("TAP mode:", tap_mode)
-				}
-			}
-		case "getself":
-			for k, v := range res["self"].(map[string]interface{}) {
-				if buildname, ok := v.(map[string]interface{})["build_name"].(string); ok && buildname != "unknown" {
-					fmt.Println("Build name:", buildname)
-				}
-				if buildversion, ok := v.(map[string]interface{})["build_version"].(string); ok && buildversion != "unknown" {
-					fmt.Println("Build version:", buildversion)
-				}
-				fmt.Println("IPv6 address:", k)
-				if subnet, ok := v.(map[string]interface{})["subnet"].(string); ok {
-					fmt.Println("IPv6 subnet:", subnet)
-				}
-				if boxSigKey, ok := v.(map[string]interface{})["key"].(string); ok {
-					fmt.Println("Public key:", boxSigKey)
-				}
-				if coords, ok := v.(map[string]interface{})["coords"].(string); ok {
-					fmt.Println("Coords:", coords)
-				}
-				if *verbose {
-					if nodeID, ok := v.(map[string]interface{})["node_id"].(string); ok {
-						fmt.Println("Node ID:", nodeID)
-					}
-					if boxPubKey, ok := v.(map[string]interface{})["box_pub_key"].(string); ok {
-						fmt.Println("Public encryption key:", boxPubKey)
-					}
-					if boxSigKey, ok := v.(map[string]interface{})["box_sig_key"].(string); ok {
-						fmt.Println("Public signing key:", boxSigKey)
-					}
-				}
-			}
-		case "getswitchqueues":
-			maximumqueuesize := float64(4194304)
-			portqueues := make(map[float64]float64)
-			portqueuesize := make(map[float64]float64)
-			portqueuepackets := make(map[float64]float64)
-			v := res["switchqueues"].(map[string]interface{})
-			if queuecount, ok := v["queues_count"].(float64); ok {
-				fmt.Printf("Active queue count: %d queues\n", uint(queuecount))
-			}
-			if queuesize, ok := v["queues_size"].(float64); ok {
-				fmt.Printf("Active queue size: %d bytes\n", uint(queuesize))
-			}
-			if highestqueuecount, ok := v["highest_queues_count"].(float64); ok {
-				fmt.Printf("Highest queue count: %d queues\n", uint(highestqueuecount))
-			}
-			if highestqueuesize, ok := v["highest_queues_size"].(float64); ok {
-				fmt.Printf("Highest queue size: %d bytes\n", uint(highestqueuesize))
-			}
-			if m, ok := v["maximum_queues_size"].(float64); ok {
-				maximumqueuesize = m
-				fmt.Printf("Maximum queue size: %d bytes\n", uint(maximumqueuesize))
-			}
-			if queues, ok := v["queues"].([]interface{}); ok {
-				if len(queues) != 0 {
-					fmt.Println("Active queues:")
-					for _, v := range queues {
-						queueport := v.(map[string]interface{})["queue_port"].(float64)
-						queuesize := v.(map[string]interface{})["queue_size"].(float64)
-						queuepackets := v.(map[string]interface{})["queue_packets"].(float64)
-						queueid := v.(map[string]interface{})["queue_id"].(string)
-						portqueues[queueport]++
-						portqueuesize[queueport] += queuesize
-						portqueuepackets[queueport] += queuepackets
-						queuesizepercent := (100 / maximumqueuesize) * queuesize
-						fmt.Printf("- Switch port %d, Stream ID: %v, size: %d bytes (%d%% full), %d packets\n",
-							uint(queueport), []byte(queueid), uint(queuesize),
-							uint(queuesizepercent), uint(queuepackets))
-					}
-				}
-			}
-			if len(portqueuesize) > 0 && len(portqueuepackets) > 0 {
-				fmt.Println("Aggregated statistics by switchport:")
-				for k, v := range portqueuesize {
-					queuesizepercent := (100 / (portqueues[k] * maximumqueuesize)) * v
-					fmt.Printf("- Switch port %d, size: %d bytes (%d%% full), %d packets\n",
-						uint(k), uint(v), uint(queuesizepercent), uint(portqueuepackets[k]))
-				}
-			}
-		case "addpeer", "removepeer", "addallowedencryptionpublickey", "removeallowedencryptionpublickey", "addsourcesubnet", "addroute", "removesourcesubnet", "removeroute":
-			if _, ok := res["added"]; ok {
-				for _, v := range res["added"].([]interface{}) {
-					fmt.Println("Added:", fmt.Sprint(v))
-				}
-			}
-			if _, ok := res["not_added"]; ok {
-				for _, v := range res["not_added"].([]interface{}) {
-					fmt.Println("Not added:", fmt.Sprint(v))
-				}
-			}
-			if _, ok := res["removed"]; ok {
-				for _, v := range res["removed"].([]interface{}) {
-					fmt.Println("Removed:", fmt.Sprint(v))
-				}
-			}
-			if _, ok := res["not_removed"]; ok {
-				for _, v := range res["not_removed"].([]interface{}) {
-					fmt.Println("Not removed:", fmt.Sprint(v))
-				}
-			}
-		case "getallowedencryptionpublickeys":
-			if _, ok := res["allowed_box_pubs"]; !ok {
-				fmt.Println("All connections are allowed")
-			} else if res["allowed_box_pubs"] == nil {
-				fmt.Println("All connections are allowed")
-			} else {
-				fmt.Println("Connections are allowed only from the following public box keys:")
-				for _, v := range res["allowed_box_pubs"].([]interface{}) {
-					fmt.Println("-", v)
-				}
-			}
-		case "getmulticastinterfaces":
-			if _, ok := res["multicast_interfaces"]; !ok {
-				fmt.Println("No multicast interfaces found")
-			} else if res["multicast_interfaces"] == nil {
-				fmt.Println("No multicast interfaces found")
-			} else {
-				fmt.Println("Multicast peer discovery is active on:")
-				for _, v := range res["multicast_interfaces"].([]interface{}) {
-					fmt.Println("-", v)
-				}
-			}
-		case "getsourcesubnets":
-			if _, ok := res["source_subnets"]; !ok {
-				fmt.Println("No source subnets found")
-			} else if res["source_subnets"] == nil {
-				fmt.Println("No source subnets found")
-			} else {
-				fmt.Println("Source subnets:")
-				for _, v := range res["source_subnets"].([]interface{}) {
-					fmt.Println("-", v)
-				}
-			}
-		case "getroutes":
-			if routes, ok := res["routes"].(map[string]interface{}); !ok {
-				fmt.Println("No routes found")
-			} else {
-				if res["routes"] == nil || len(routes) == 0 {
-					fmt.Println("No routes found")
-				} else {
-					fmt.Println("Routes:")
-					for k, v := range routes {
-						if pv, ok := v.(string); ok {
-							fmt.Println("-", k, " via ", pv)
-						}
-					}
-				}
-			}
-		case "settunnelrouting":
-			fallthrough
-		case "gettunnelrouting":
-			if enabled, ok := res["enabled"].(bool); !ok {
-				fmt.Println("Tunnel routing is disabled")
-			} else if !enabled {
-				fmt.Println("Tunnel routing is disabled")
-			} else {
-				fmt.Println("Tunnel routing is enabled")
-			}
-		default:
-			if json, err := json.MarshalIndent(recv["response"], "", "  "); err == nil {
-				fmt.Println(string(json))
-			}
-		}
 	} else {
 		logger.Println("Error receiving response:", err)
 	}
@@ -448,5 +137,321 @@ func run() int {
 	if v, ok := recv["status"]; ok && v != "success" {
 		return 1
 	}
+
 	return 0
 }
+
+func connect(endpoint string, logger *log.Logger) net.Conn {
+	var conn net.Conn
+
+	u, err := url.Parse(endpoint)
+
+	if err == nil {
+		switch strings.ToLower(u.Scheme) {
+		case "unix":
+			logger.Println("Connecting to UNIX socket", endpoint[7:])
+			conn, err = net.Dial("unix", endpoint[7:])
+		case "tcp":
+			logger.Println("Connecting to TCP socket", u.Host)
+			conn, err = net.Dial("tcp", u.Host)
+		default:
+			logger.Println("Unknown protocol or malformed address - check your endpoint")
+			err = errors.New("protocol not supported")
+		}
+	} else {
+		logger.Println("Connecting to TCP socket", u.Host)
+		conn, err = net.Dial("tcp", endpoint)
+	}
+
+	if err != nil {
+		panic(err)
+	}
+
+	return conn
+}
+
+func handleAll(recv map[string]interface{}, verbose bool) {
+	req := recv["request"].(map[string]interface{})
+	res := recv["response"].(map[string]interface{})
+
+	switch strings.ToLower(req["request"].(string)) {
+	case "dot":
+		handleDot(res)
+	case "list", "getpeers", "getswitchpeers", "getdht", "getsessions", "dhtping":
+		handleVariousInfo(res, verbose)
+	case "gettuntap", "settuntap":
+		handleGetAndSetTunTap(res)
+	case "getself":
+		handleGetSelf(res, verbose)
+	case "getswitchqueues":
+		handleGetSwitchQueues(res)
+	case "addpeer", "removepeer", "addallowedencryptionpublickey", "removeallowedencryptionpublickey", "addsourcesubnet", "addroute", "removesourcesubnet", "removeroute":
+		handleAddsAndRemoves(res)
+	case "getallowedencryptionpublickeys":
+		handleGetAllowedEncryptionPublicKeys(res)
+	case "getmulticastinterfaces":
+		handleGetMulticastInterfaces(res)
+	case "getsourcesubnets":
+		handleGetSourceSubnets(res)
+	case "getroutes":
+		handleGetRoutes(res)
+	case "settunnelrouting":
+		fallthrough
+	case "gettunnelrouting":
+		handleGetTunnelRouting(res)
+	default:
+		if json, err := json.MarshalIndent(recv["response"], "", "  "); err == nil {
+			fmt.Println(string(json))
+		}
+	}
+}
+
+func handleDot(res map[string]interface{}) {
+	fmt.Println(res["dot"])
+}
+
+func handleVariousInfo(res map[string]interface{}, verbose bool) {
+	maxWidths := make(map[string]int)
+	var keyOrder []string
+	keysOrdered := false
+
+	for _, tlv := range res {
+		for slk, slv := range tlv.(map[string]interface{}) {
+			if !keysOrdered {
+				for k := range slv.(map[string]interface{}) {
+					if !verbose {
+						if k == "box_pub_key" || k == "box_sig_key" || k == "nodeinfo" || k == "was_mtu_fixed" {
+							continue
+						}
+					}
+					keyOrder = append(keyOrder, fmt.Sprint(k))
+				}
+				sort.Strings(keyOrder)
+				keysOrdered = true
+			}
+			for k, v := range slv.(map[string]interface{}) {
+				if len(fmt.Sprint(slk)) > maxWidths["key"] {
+					maxWidths["key"] = len(fmt.Sprint(slk))
+				}
+				if len(fmt.Sprint(v)) > maxWidths[k] {
+					maxWidths[k] = len(fmt.Sprint(v))
+					if maxWidths[k] < len(k) {
+						maxWidths[k] = len(k)
+					}
+				}
+			}
+		}
+
+		if len(keyOrder) > 0 {
+			fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s  ", "")
+			for _, v := range keyOrder {
+				fmt.Printf("%-"+fmt.Sprint(maxWidths[v])+"s  ", v)
+			}
+			fmt.Println()
+		}
+
+		for slk, slv := range tlv.(map[string]interface{}) {
+			fmt.Printf("%-"+fmt.Sprint(maxWidths["key"])+"s  ", slk)
+			for _, k := range keyOrder {
+				preformatted := slv.(map[string]interface{})[k]
+				var formatted string
+				switch k {
+				case "bytes_sent", "bytes_recvd":
+					formatted = fmt.Sprintf("%d", uint(preformatted.(float64)))
+				case "uptime", "last_seen":
+					seconds := uint(preformatted.(float64)) % 60
+					minutes := uint(preformatted.(float64)/60) % 60
+					hours := uint(preformatted.(float64) / 60 / 60)
+					formatted = fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
+				default:
+					formatted = fmt.Sprint(preformatted)
+				}
+				fmt.Printf("%-"+fmt.Sprint(maxWidths[k])+"s  ", formatted)
+			}
+			fmt.Println()
+		}
+	}
+}
+
+func handleGetAndSetTunTap(res map[string]interface{}) {
+	for k, v := range res {
+		fmt.Println("Interface name:", k)
+		if mtu, ok := v.(map[string]interface{})["mtu"].(float64); ok {
+			fmt.Println("Interface MTU:", mtu)
+		}
+		if tap_mode, ok := v.(map[string]interface{})["tap_mode"].(bool); ok {
+			fmt.Println("TAP mode:", tap_mode)
+		}
+	}
+}
+
+func handleGetSelf(res map[string]interface{}, verbose bool) {
+	for k, v := range res["self"].(map[string]interface{}) {
+		if buildname, ok := v.(map[string]interface{})["build_name"].(string); ok && buildname != "unknown" {
+			fmt.Println("Build name:", buildname)
+		}
+		if buildversion, ok := v.(map[string]interface{})["build_version"].(string); ok && buildversion != "unknown" {
+			fmt.Println("Build version:", buildversion)
+		}
+		fmt.Println("IPv6 address:", k)
+		if subnet, ok := v.(map[string]interface{})["subnet"].(string); ok {
+			fmt.Println("IPv6 subnet:", subnet)
+		}
+		if boxSigKey, ok := v.(map[string]interface{})["key"].(string); ok {
+			fmt.Println("Public key:", boxSigKey)
+		}
+		if coords, ok := v.(map[string]interface{})["coords"].(string); ok {
+			fmt.Println("Coords:", coords)
+		}
+		if verbose {
+			if nodeID, ok := v.(map[string]interface{})["node_id"].(string); ok {
+				fmt.Println("Node ID:", nodeID)
+			}
+			if boxPubKey, ok := v.(map[string]interface{})["box_pub_key"].(string); ok {
+				fmt.Println("Public encryption key:", boxPubKey)
+			}
+			if boxSigKey, ok := v.(map[string]interface{})["box_sig_key"].(string); ok {
+				fmt.Println("Public signing key:", boxSigKey)
+			}
+		}
+	}
+}
+
+func handleGetSwitchQueues(res map[string]interface{}) {
+	maximumqueuesize := float64(4194304)
+	portqueues := make(map[float64]float64)
+	portqueuesize := make(map[float64]float64)
+	portqueuepackets := make(map[float64]float64)
+	v := res["switchqueues"].(map[string]interface{})
+	if queuecount, ok := v["queues_count"].(float64); ok {
+		fmt.Printf("Active queue count: %d queues\n", uint(queuecount))
+	}
+	if queuesize, ok := v["queues_size"].(float64); ok {
+		fmt.Printf("Active queue size: %d bytes\n", uint(queuesize))
+	}
+	if highestqueuecount, ok := v["highest_queues_count"].(float64); ok {
+		fmt.Printf("Highest queue count: %d queues\n", uint(highestqueuecount))
+	}
+	if highestqueuesize, ok := v["highest_queues_size"].(float64); ok {
+		fmt.Printf("Highest queue size: %d bytes\n", uint(highestqueuesize))
+	}
+	if m, ok := v["maximum_queues_size"].(float64); ok {
+		maximumqueuesize = m
+		fmt.Printf("Maximum queue size: %d bytes\n", uint(maximumqueuesize))
+	}
+	if queues, ok := v["queues"].([]interface{}); ok {
+		if len(queues) != 0 {
+			fmt.Println("Active queues:")
+			for _, v := range queues {
+				queueport := v.(map[string]interface{})["queue_port"].(float64)
+				queuesize := v.(map[string]interface{})["queue_size"].(float64)
+				queuepackets := v.(map[string]interface{})["queue_packets"].(float64)
+				queueid := v.(map[string]interface{})["queue_id"].(string)
+				portqueues[queueport]++
+				portqueuesize[queueport] += queuesize
+				portqueuepackets[queueport] += queuepackets
+				queuesizepercent := (100 / maximumqueuesize) * queuesize
+				fmt.Printf("- Switch port %d, Stream ID: %v, size: %d bytes (%d%% full), %d packets\n",
+					uint(queueport), []byte(queueid), uint(queuesize),
+					uint(queuesizepercent), uint(queuepackets))
+			}
+		}
+	}
+	if len(portqueuesize) > 0 && len(portqueuepackets) > 0 {
+		fmt.Println("Aggregated statistics by switchport:")
+		for k, v := range portqueuesize {
+			queuesizepercent := (100 / (portqueues[k] * maximumqueuesize)) * v
+			fmt.Printf("- Switch port %d, size: %d bytes (%d%% full), %d packets\n",
+				uint(k), uint(v), uint(queuesizepercent), uint(portqueuepackets[k]))
+		}
+	}
+}
+
+func handleAddsAndRemoves(res map[string]interface{}) {
+	if _, ok := res["added"]; ok {
+		for _, v := range res["added"].([]interface{}) {
+			fmt.Println("Added:", fmt.Sprint(v))
+		}
+	}
+	if _, ok := res["not_added"]; ok {
+		for _, v := range res["not_added"].([]interface{}) {
+			fmt.Println("Not added:", fmt.Sprint(v))
+		}
+	}
+	if _, ok := res["removed"]; ok {
+		for _, v := range res["removed"].([]interface{}) {
+			fmt.Println("Removed:", fmt.Sprint(v))
+		}
+	}
+	if _, ok := res["not_removed"]; ok {
+		for _, v := range res["not_removed"].([]interface{}) {
+			fmt.Println("Not removed:", fmt.Sprint(v))
+		}
+	}
+}
+
+func handleGetAllowedEncryptionPublicKeys(res map[string]interface{}) {
+	if _, ok := res["allowed_box_pubs"]; !ok {
+		fmt.Println("All connections are allowed")
+	} else if res["allowed_box_pubs"] == nil {
+		fmt.Println("All connections are allowed")
+	} else {
+		fmt.Println("Connections are allowed only from the following public box keys:")
+		for _, v := range res["allowed_box_pubs"].([]interface{}) {
+			fmt.Println("-", v)
+		}
+	}
+}
+
+func handleGetMulticastInterfaces(res map[string]interface{}) {
+	if _, ok := res["multicast_interfaces"]; !ok {
+		fmt.Println("No multicast interfaces found")
+	} else if res["multicast_interfaces"] == nil {
+		fmt.Println("No multicast interfaces found")
+	} else {
+		fmt.Println("Multicast peer discovery is active on:")
+		for _, v := range res["multicast_interfaces"].([]interface{}) {
+			fmt.Println("-", v)
+		}
+	}
+}
+
+func handleGetSourceSubnets(res map[string]interface{}) {
+	if _, ok := res["source_subnets"]; !ok {
+		fmt.Println("No source subnets found")
+	} else if res["source_subnets"] == nil {
+		fmt.Println("No source subnets found")
+	} else {
+		fmt.Println("Source subnets:")
+		for _, v := range res["source_subnets"].([]interface{}) {
+			fmt.Println("-", v)
+		}
+	}
+}
+
+func handleGetRoutes(res map[string]interface{}) {
+	if routes, ok := res["routes"].(map[string]interface{}); !ok {
+		fmt.Println("No routes found")
+	} else {
+		if res["routes"] == nil || len(routes) == 0 {
+			fmt.Println("No routes found")
+		} else {
+			fmt.Println("Routes:")
+			for k, v := range routes {
+				if pv, ok := v.(string); ok {
+					fmt.Println("-", k, " via ", pv)
+				}
+			}
+		}
+	}
+}
+
+func handleGetTunnelRouting(res map[string]interface{}) {
+	if enabled, ok := res["enabled"].(bool); !ok {
+		fmt.Println("Tunnel routing is disabled")
+	} else if !enabled {
+		fmt.Println("Tunnel routing is disabled")
+	} else {
+		fmt.Println("Tunnel routing is enabled")
+	}
+}