feat: add address and port resolution options

cmd/cli_test.go

@@ -364,7 +364,8 @@ func resetGlobalFlags() {
 	filterIPv4 = false
 	filterIPv6 = false
 	colorMode = "auto"
-	numeric = false
+	resolveAddrs = true
+	resolvePorts = false
 }
 
 // TestEnvironmentVariables tests that environment variables are properly handled

cmd/ls.go

@@ -30,7 +30,8 @@ var (
 	sortBy        string
 	fields        string
 	colorMode     string
-	numeric       bool
+	resolveAddrs  bool
+	resolvePorts  bool
 	plainOutput   bool
 )
 
@@ -51,7 +52,7 @@ Available filters:
 }
 
 func runListCommand(outputFormat string, args []string) {
-	rt, err := NewRuntime(args, colorMode, numeric)
+	rt, err := NewRuntime(args, colorMode)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -98,14 +99,18 @@ func getFieldMap(c collector.Connection) map[string]string {
 	lport := strconv.Itoa(c.Lport)
 	rport := strconv.Itoa(c.Rport)
 	
-	// Apply name resolution if not in numeric mode
-	if !numeric {
+	// apply address resolution
+	if resolveAddrs {
 		if resolvedLaddr := resolver.ResolveAddr(c.Laddr); resolvedLaddr != c.Laddr {
 			laddr = resolvedLaddr
 		}
 		if resolvedRaddr := resolver.ResolveAddr(c.Raddr); resolvedRaddr != c.Raddr && c.Raddr != "*" && c.Raddr != "" {
 			raddr = resolvedRaddr
 		}
+	}
+
+	// apply port resolution
+	if resolvePorts {
 		if resolvedLport := resolver.ResolvePort(c.Lport, c.Proto); resolvedLport != strconv.Itoa(c.Lport) {
 			lport = resolvedLport
 		}
@@ -395,7 +400,8 @@ func init() {
 	lsCmd.Flags().StringVarP(&sortBy, "sort", "s", cfg.Defaults.SortBy, "Sort by column (e.g., pid:desc)")
 	lsCmd.Flags().StringVarP(&fields, "fields", "f", strings.Join(cfg.Defaults.Fields, ","), "Comma-separated list of fields to show")
 	lsCmd.Flags().StringVar(&colorMode, "color", cfg.Defaults.Color, "Color mode (auto, always, never)")
-	lsCmd.Flags().BoolVarP(&numeric, "numeric", "n", cfg.Defaults.Numeric, "Don't resolve hostnames")
+	lsCmd.Flags().BoolVar(&resolveAddrs, "resolve-addrs", !cfg.Defaults.Numeric, "Resolve IP addresses to hostnames")
+	lsCmd.Flags().BoolVar(&resolvePorts, "resolve-ports", false, "Resolve port numbers to service names")
 	lsCmd.Flags().BoolVarP(&plainOutput, "plain", "p", false, "Plain output (parsable, no styling)")
 
 	// shared filter flags

cmd/root.go

@@ -44,6 +44,8 @@ func init() {
 	cfg := config.Get()
 	rootCmd.Flags().StringVar(&topTheme, "theme", cfg.Defaults.Theme, "Theme for TUI (dark, light, mono, auto)")
 	rootCmd.Flags().DurationVarP(&topInterval, "interval", "i", 0, "Refresh interval (default 1s)")
+	rootCmd.Flags().BoolVar(&topResolveAddrs, "resolve-addrs", !cfg.Defaults.Numeric, "Resolve IP addresses to hostnames")
+	rootCmd.Flags().BoolVar(&topResolvePorts, "resolve-ports", false, "Resolve port numbers to service names")
 
 	// shared filter flags for root command
 	addFilterFlags(rootCmd)

cmd/runtime.go

@@ -20,8 +20,9 @@ type Runtime struct {
 	Connections []collector.Connection
 
 	// common settings
-	ColorMode string
-	Numeric   bool
+	ColorMode    string
+	ResolveAddrs bool
+	ResolvePorts bool
 }
 
 // shared filter flags - used by all commands
@@ -73,7 +74,7 @@ func FetchConnections(filters collector.FilterOptions) ([]collector.Connection,
 }
 
 // NewRuntime creates a runtime with fetched and filtered connections.
-func NewRuntime(args []string, colorMode string, numeric bool) (*Runtime, error) {
+func NewRuntime(args []string, colorMode string) (*Runtime, error) {
 	color.Init(colorMode)
 
 	filters, err := BuildFilters(args)
@@ -87,10 +88,11 @@ func NewRuntime(args []string, colorMode string, numeric bool) (*Runtime, error)
 	}
 
 	return &Runtime{
-		Filters:     filters,
-		Connections: connections,
-		ColorMode:   colorMode,
-		Numeric:     numeric,
+		Filters:      filters,
+		Connections:  connections,
+		ColorMode:    colorMode,
+		ResolveAddrs: resolveAddrs,
+		ResolvePorts: resolvePorts,
 	}, nil
 }
 

cmd/top.go

@@ -12,8 +12,10 @@ import (
 
 // top-specific flags
 var (
-	topTheme    string
-	topInterval time.Duration
+	topTheme        string
+	topInterval     time.Duration
+	topResolveAddrs bool
+	topResolvePorts bool
 )
 
 var topCmd = &cobra.Command{
@@ -28,8 +30,10 @@ var topCmd = &cobra.Command{
 		}
 
 		opts := tui.Options{
-			Theme:    theme,
-			Interval: topInterval,
+			Theme:        theme,
+			Interval:     topInterval,
+			ResolveAddrs: topResolveAddrs,
+			ResolvePorts: topResolvePorts,
 		}
 
 		// if any filter flag is set, use exclusive mode
@@ -58,6 +62,8 @@ func init() {
 	// top-specific flags
 	topCmd.Flags().StringVar(&topTheme, "theme", cfg.Defaults.Theme, "Theme for TUI (dark, light, mono, auto)")
 	topCmd.Flags().DurationVarP(&topInterval, "interval", "i", time.Second, "Refresh interval")
+	topCmd.Flags().BoolVar(&topResolveAddrs, "resolve-addrs", !cfg.Defaults.Numeric, "Resolve IP addresses to hostnames")
+	topCmd.Flags().BoolVar(&topResolvePorts, "resolve-ports", false, "Resolve port numbers to service names")
 
 	// shared filter flags
 	addFilterFlags(topCmd)