aur: install README.md to /usr/share/doc/snitch

cmd/ls.go

@@ -27,7 +27,6 @@ import (
 // ls-specific flags
 var (
 	outputFormat  string
-	outputFile    string
 	noHeaders     bool
 	showTimestamp bool
 	sortBy        string
@@ -73,77 +72,9 @@ func runListCommand(outputFormat string, args []string) {
 		selectedFields = strings.Split(fields, ",")
 	}
 
-	// handle file output
-	if outputFile != "" {
-		writeToFile(rt.Connections, outputFile, selectedFields)
-		return
-	}
-
 	renderList(rt.Connections, outputFormat, selectedFields)
 }
 
-func writeToFile(connections []collector.Connection, filename string, selectedFields []string) {
-	file, err := os.Create(filename)
-	if err != nil {
-		log.Fatalf("failed to create file: %v", err)
-	}
-	defer errutil.Close(file)
-
-	// determine format from extension
-	format := "csv"
-	lowerFilename := strings.ToLower(filename)
-	if strings.HasSuffix(lowerFilename, ".json") {
-		format = "json"
-	} else if strings.HasSuffix(lowerFilename, ".tsv") {
-		format = "tsv"
-	}
-
-	if len(selectedFields) == 0 {
-		selectedFields = []string{"pid", "process", "user", "proto", "state", "laddr", "lport", "raddr", "rport"}
-		if showTimestamp {
-			selectedFields = append([]string{"ts"}, selectedFields...)
-		}
-	}
-
-	switch format {
-	case "json":
-		encoder := json.NewEncoder(file)
-		encoder.SetIndent("", "  ")
-		if err := encoder.Encode(connections); err != nil {
-			log.Fatalf("failed to write JSON: %v", err)
-		}
-	case "tsv":
-		writeDelimited(file, connections, "\t", !noHeaders, selectedFields)
-	default:
-		writeDelimited(file, connections, ",", !noHeaders, selectedFields)
-	}
-
-	fmt.Fprintf(os.Stderr, "exported %d connections to %s\n", len(connections), filename)
-}
-
-func writeDelimited(w io.Writer, connections []collector.Connection, delimiter string, headers bool, selectedFields []string) {
-	if headers {
-		headerRow := make([]string, len(selectedFields))
-		for i, field := range selectedFields {
-			headerRow[i] = strings.ToUpper(field)
-		}
-		_, _ = fmt.Fprintln(w, strings.Join(headerRow, delimiter))
-	}
-
-	for _, conn := range connections {
-		fieldMap := getFieldMap(conn)
-		row := make([]string, len(selectedFields))
-		for i, field := range selectedFields {
-			val := fieldMap[field]
-			if delimiter == "," && (strings.Contains(val, ",") || strings.Contains(val, "\"") || strings.Contains(val, "\n")) {
-				val = "\"" + strings.ReplaceAll(val, "\"", "\"\"") + "\""
-			}
-			row[i] = val
-		}
-		_, _ = fmt.Fprintln(w, strings.Join(row, delimiter))
-	}
-}
-
 func renderList(connections []collector.Connection, format string, selectedFields []string) {
 	switch format {
 	case "json":
@@ -191,8 +122,6 @@ func getFieldMap(c collector.Connection) map[string]string {
 	return map[string]string{
 		"pid":       strconv.Itoa(c.PID),
 		"process":   c.Process,
-		"cmdline":   c.Cmdline,
-		"cwd":       c.Cwd,
 		"user":      c.User,
 		"uid":       strconv.Itoa(c.UID),
 		"proto":     c.Proto,
@@ -466,7 +395,6 @@ func init() {
 
 	// ls-specific flags
 	lsCmd.Flags().StringVarP(&outputFormat, "output", "o", cfg.Defaults.OutputFormat, "Output format (table, wide, json, csv)")
-	lsCmd.Flags().StringVarP(&outputFile, "output-file", "O", "", "Write output to file (format detected from extension: .csv, .tsv, .json)")
 	lsCmd.Flags().BoolVar(&noHeaders, "no-headers", cfg.Defaults.NoHeaders, "Omit headers for table/csv output")
 	lsCmd.Flags().BoolVar(&showTimestamp, "ts", false, "Include timestamp in output")
 	lsCmd.Flags().StringVarP(&sortBy, "sort", "s", cfg.Defaults.SortBy, "Sort by column (e.g., pid:desc)")

internal/collector/collector_darwin.go

@@ -37,19 +37,6 @@ static const char* get_username(int uid) {
     return pw->pw_name;
 }
 
-// get current working directory for a process
-static int get_proc_cwd(int pid, char *path, int pathlen) {
-    struct proc_vnodepathinfo vpi;
-    int ret = proc_pidinfo(pid, PROC_PIDVNODEPATHINFO, 0, &vpi, sizeof(vpi));
-    if (ret <= 0) {
-        path[0] = '\0';
-        return -1;
-    }
-    strncpy(path, vpi.pvi_cdir.vip_path, pathlen - 1);
-    path[pathlen - 1] = '\0';
-    return 0;
-}
-
 // socket info extraction - handles the union properly in C
 typedef struct {
     int family;
@@ -177,7 +164,6 @@ func listAllPids() ([]int, error) {
 
 func getConnectionsForPid(pid int) ([]Connection, error) {
 	procName := getProcessName(pid)
-	cwd := getProcessCwd(pid)
 	uid := int(C.get_proc_uid(C.int(pid)))
 	user := ""
 	if uid >= 0 {
@@ -212,7 +198,7 @@ func getConnectionsForPid(pid int) ([]Connection, error) {
 			continue
 		}
 
-		conn, ok := getSocketInfo(pid, int(fdInfo.proc_fd), procName, cwd, uid, user)
+		conn, ok := getSocketInfo(pid, int(fdInfo.proc_fd), procName, uid, user)
 		if ok {
 			connections = append(connections, conn)
 		}
@@ -221,7 +207,7 @@ func getConnectionsForPid(pid int) ([]Connection, error) {
 	return connections, nil
 }
 
-func getSocketInfo(pid, fd int, procName, cwd string, uid int, user string) (Connection, bool) {
+func getSocketInfo(pid, fd int, procName string, uid int, user string) (Connection, bool) {
 	var info C.socket_info_t
 
 	ret := C.get_socket_info(C.int(pid), C.int(fd), &info)
@@ -290,7 +276,6 @@ func getSocketInfo(pid, fd int, procName, cwd string, uid int, user string) (Con
 		Rport:     int(info.rport),
 		PID:       pid,
 		Process:   procName,
-		Cwd:       cwd,
 		UID:       uid,
 		User:      user,
 		Interface: guessNetworkInterface(laddr),
@@ -308,15 +293,6 @@ func getProcessName(pid int) string {
 	return C.GoString(&name[0])
 }
 
-func getProcessCwd(pid int) string {
-	var path [1024]C.char
-	ret := C.get_proc_cwd(C.int(pid), &path[0], 1024)
-	if ret != 0 {
-		return ""
-	}
-	return C.GoString(&path[0])
-}
-
 func ipv4ToString(addr uint32) string {
 	ip := make(net.IP, 4)
 	ip[0] = byte(addr)

internal/collector/collector_linux.go

@@ -125,8 +125,6 @@ func GetAllConnections() ([]Connection, error) {
 type processInfo struct {
 	pid     int
 	command string
-	cmdline string
-	cwd     string
 	uid     int
 	user    string
 }
@@ -250,27 +248,23 @@ func scanProcessSockets(pid int) []inodeEntry {
 
 func getProcessInfo(pid int) (*processInfo, error) {
 	info := &processInfo{pid: pid}
-	pidStr := strconv.Itoa(pid)
 
-	commPath := filepath.Join("/proc", pidStr, "comm")
+	commPath := filepath.Join("/proc", strconv.Itoa(pid), "comm")
 	commData, err := os.ReadFile(commPath)
 	if err == nil && len(commData) > 0 {
 		info.command = strings.TrimSpace(string(commData))
 	}
 
-	cmdlinePath := filepath.Join("/proc", pidStr, "cmdline")
+	if info.command == "" {
+		cmdlinePath := filepath.Join("/proc", strconv.Itoa(pid), "cmdline")
 		cmdlineData, err := os.ReadFile(cmdlinePath)
-	if err == nil && len(cmdlineData) > 0 {
+		if err != nil {
-		parts := bytes.Split(cmdlineData, []byte{0})
+			return nil, err
-		var args []string
-		for _, p := range parts {
-			if len(p) > 0 {
-				args = append(args, string(p))
 		}
-		}
-		info.cmdline = strings.Join(args, " ")
 
-		if info.command == "" && len(parts) > 0 && len(parts[0]) > 0 {
+		if len(cmdlineData) > 0 {
+			parts := bytes.Split(cmdlineData, []byte{0})
+			if len(parts) > 0 && len(parts[0]) > 0 {
 				fullPath := string(parts[0])
 				baseName := filepath.Base(fullPath)
 				if strings.Contains(baseName, " ") {
@@ -278,17 +272,10 @@ func getProcessInfo(pid int) (*processInfo, error) {
 				}
 				info.command = baseName
 			}
-	} else if info.command == "" {
+		}
-		return nil, err
 	}
 
-	cwdPath := filepath.Join("/proc", pidStr, "cwd")
+	statusPath := filepath.Join("/proc", strconv.Itoa(pid), "status")
-	cwdLink, err := os.Readlink(cwdPath)
-	if err == nil {
-		info.cwd = cwdLink
-	}
-
-	statusPath := filepath.Join("/proc", pidStr, "status")
 	statusFile, err := os.Open(statusPath)
 	if err != nil {
 		return info, nil
@@ -374,8 +361,6 @@ func parseProcNet(path, proto string, ipVersion int, inodeMap map[int64]*process
 		if procInfo, exists := inodeMap[inode]; exists {
 			conn.PID = procInfo.pid
 			conn.Process = procInfo.command
-			conn.Cmdline = procInfo.cmdline
-			conn.Cwd = procInfo.cwd
 			conn.UID = procInfo.uid
 			conn.User = procInfo.user
 		}

internal/collector/collector_test.go

@@ -115,59 +115,3 @@ func BenchmarkBuildInodeMap(b *testing.B) {
 		_, _ = buildInodeToProcessMap()
 	}
 }
-
-func TestConnectionHasCmdlineAndCwd(t *testing.T) {
-	conns, err := GetConnections()
-	if err != nil {
-		t.Fatalf("GetConnections() returned an error: %v", err)
-	}
-
-	if len(conns) == 0 {
-		t.Skip("no connections to test")
-	}
-
-	// find a connection with a PID (owned by some process)
-	var connWithProcess *Connection
-	for i := range conns {
-		if conns[i].PID > 0 {
-			connWithProcess = &conns[i]
-			break
-		}
-	}
-
-	if connWithProcess == nil {
-		t.Skip("no connections with associated process found")
-	}
-
-	t.Logf("testing connection: pid=%d process=%s", connWithProcess.PID, connWithProcess.Process)
-
-	// cmdline and cwd should be populated for connections with PIDs
-	// note: they might be empty if we don't have permission to read them
-	if connWithProcess.Cmdline != "" {
-		t.Logf("cmdline: %s", connWithProcess.Cmdline)
-	} else {
-		t.Logf("cmdline is empty (might be permission issue)")
-	}
-
-	if connWithProcess.Cwd != "" {
-		t.Logf("cwd: %s", connWithProcess.Cwd)
-	} else {
-		t.Logf("cwd is empty (might be permission issue)")
-	}
-}
-
-func TestGetProcessInfoPopulatesCmdlineAndCwd(t *testing.T) {
-	// test that getProcessInfo correctly populates cmdline and cwd for our own process
-	info, err := getProcessInfo(1) // init process (usually has cwd of /)
-	if err != nil {
-		t.Logf("could not get process info for pid 1: %v", err)
-		t.Skip("skipping - may not have permission")
-	}
-
-	t.Logf("pid 1 info: command=%s cmdline=%s cwd=%s", info.command, info.cmdline, info.cwd)
-
-	// at minimum, we should have a command name
-	if info.command == "" && info.cmdline == "" {
-		t.Error("expected either command or cmdline to be populated")
-	}
-}

internal/collector/sort_test.go

@@ -128,75 +128,3 @@ func TestSortByTimestamp(t *testing.T) {
 	}
 }
 
-func TestSortByRemoteAddr(t *testing.T) {
-	conns := []Connection{
-		{Raddr: "192.168.1.100", Rport: 443},
-		{Raddr: "10.0.0.1", Rport: 80},
-		{Raddr: "172.16.0.50", Rport: 8080},
-	}
-
-	t.Run("sort by raddr ascending", func(t *testing.T) {
-		c := make([]Connection, len(conns))
-		copy(c, conns)
-
-		SortConnections(c, SortOptions{Field: SortByRaddr, Direction: SortAsc})
-
-		if c[0].Raddr != "10.0.0.1" {
-			t.Errorf("expected '10.0.0.1' first, got '%s'", c[0].Raddr)
-		}
-		if c[1].Raddr != "172.16.0.50" {
-			t.Errorf("expected '172.16.0.50' second, got '%s'", c[1].Raddr)
-		}
-		if c[2].Raddr != "192.168.1.100" {
-			t.Errorf("expected '192.168.1.100' last, got '%s'", c[2].Raddr)
-		}
-	})
-
-	t.Run("sort by raddr descending", func(t *testing.T) {
-		c := make([]Connection, len(conns))
-		copy(c, conns)
-
-		SortConnections(c, SortOptions{Field: SortByRaddr, Direction: SortDesc})
-
-		if c[0].Raddr != "192.168.1.100" {
-			t.Errorf("expected '192.168.1.100' first, got '%s'", c[0].Raddr)
-		}
-	})
-}
-
-func TestSortByRemotePort(t *testing.T) {
-	conns := []Connection{
-		{Raddr: "192.168.1.1", Rport: 443},
-		{Raddr: "192.168.1.2", Rport: 80},
-		{Raddr: "192.168.1.3", Rport: 8080},
-	}
-
-	t.Run("sort by rport ascending", func(t *testing.T) {
-		c := make([]Connection, len(conns))
-		copy(c, conns)
-
-		SortConnections(c, SortOptions{Field: SortByRport, Direction: SortAsc})
-
-		if c[0].Rport != 80 {
-			t.Errorf("expected port 80 first, got %d", c[0].Rport)
-		}
-		if c[1].Rport != 443 {
-			t.Errorf("expected port 443 second, got %d", c[1].Rport)
-		}
-		if c[2].Rport != 8080 {
-			t.Errorf("expected port 8080 last, got %d", c[2].Rport)
-		}
-	})
-
-	t.Run("sort by rport descending", func(t *testing.T) {
-		c := make([]Connection, len(conns))
-		copy(c, conns)
-
-		SortConnections(c, SortOptions{Field: SortByRport, Direction: SortDesc})
-
-		if c[0].Rport != 8080 {
-			t.Errorf("expected port 8080 first, got %d", c[0].Rport)
-		}
-	})
-}
-

internal/collector/types.go

@@ -6,8 +6,6 @@ type Connection struct {
 	TS         time.Time `json:"ts"`
 	PID        int       `json:"pid"`
 	Process    string    `json:"process"`
-	Cmdline    string    `json:"cmdline,omitempty"`
-	Cwd        string    `json:"cwd,omitempty"`
 	User       string    `json:"user"`
 	UID        int       `json:"uid"`
 	Proto      string    `json:"proto"`

internal/tui/helpers.go

@@ -38,10 +38,6 @@ func sortFieldLabel(f collector.SortField) string {
 		return "state"
 	case collector.SortByProto:
 		return "proto"
-	case collector.SortByRaddr:
-		return "raddr"
-	case collector.SortByRport:
-		return "rport"
 	default:
 		return "port"
 	}

internal/tui/keys.go

@@ -2,12 +2,10 @@ package tui
 
 import (
 	"fmt"
-	"strings"
+	"github.com/karol-broda/snitch/internal/collector"
 	"time"
 
 	tea "github.com/charmbracelet/bubbletea"
-
-	"github.com/karol-broda/snitch/internal/collector"
 )
 
 func (m model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
@@ -16,11 +14,6 @@ func (m model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		return m.handleSearchKey(msg)
 	}
 
-	// export modal captures all input
-	if m.showExportModal {
-		return m.handleExportKey(msg)
-	}
-
 	// kill confirmation dialog
 	if m.showKillConfirm {
 		return m.handleKillConfirmKey(msg)
@@ -59,82 +52,6 @@ func (m model) handleSearchKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 	return m, nil
 }
 
-func (m model) handleExportKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
-	switch msg.String() {
-	case "esc":
-		m.showExportModal = false
-		m.exportFilename = ""
-		m.exportFormat = ""
-		m.exportError = ""
-
-	case "tab":
-		// toggle format
-		if m.exportFormat == "tsv" {
-			m.exportFormat = "csv"
-		} else {
-			m.exportFormat = "tsv"
-		}
-		m.exportError = ""
-
-	case "enter":
-		// build final filename with extension
-		filename := m.exportFilename
-		if filename == "" {
-			filename = "connections"
-		}
-
-		ext := ".csv"
-		if m.exportFormat == "tsv" {
-			ext = ".tsv"
-		}
-
-		// only add extension if not already present
-		if !strings.HasSuffix(strings.ToLower(filename), ".csv") &&
-			!strings.HasSuffix(strings.ToLower(filename), ".tsv") {
-			filename = filename + ext
-		}
-		m.exportFilename = filename
-
-		err := m.exportConnections()
-		if err != nil {
-			m.exportError = err.Error()
-			return m, nil
-		}
-
-		visible := m.visibleConnections()
-		m.statusMessage = fmt.Sprintf("%s exported %d connections to %s", SymbolSuccess, len(visible), filename)
-		m.statusExpiry = time.Now().Add(3 * time.Second)
-		m.showExportModal = false
-		m.exportFilename = ""
-		m.exportFormat = ""
-		m.exportError = ""
-		return m, clearStatusAfter(3 * time.Second)
-
-	case "backspace":
-		if len(m.exportFilename) > 0 {
-			m.exportFilename = m.exportFilename[:len(m.exportFilename)-1]
-		}
-		m.exportError = ""
-
-	default:
-		// only accept valid filename characters
-		char := msg.String()
-		if len(char) == 1 && isValidFilenameChar(char[0]) {
-			m.exportFilename += char
-			m.exportError = ""
-		}
-	}
-	return m, nil
-}
-
-func isValidFilenameChar(c byte) bool {
-	// allow alphanumeric, dash, underscore, dot
-	return (c >= 'a' && c <= 'z') ||
-		(c >= 'A' && c <= 'Z') ||
-		(c >= '0' && c <= '9') ||
-		c == '-' || c == '_' || c == '.'
-}
-
 func (m model) handleDetailKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 	switch msg.String() {
 	case "esc", "enter", "q":
@@ -240,13 +157,6 @@ func (m model) handleNormalKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		m.searchActive = true
 		m.searchQuery = ""
 
-	// export
-	case "x":
-		m.showExportModal = true
-		m.exportFilename = ""
-		m.exportFormat = "csv"
-		m.exportError = ""
-
 	// actions
 	case "enter", " ":
 		visible := m.visibleConnections()
@@ -366,8 +276,6 @@ func (m *model) cycleSort() {
 		collector.SortByPID,
 		collector.SortByState,
 		collector.SortByProto,
-		collector.SortByRaddr,
-		collector.SortByRport,
 	}
 
 	for i, f := range fields {

internal/tui/model.go

@@ -2,9 +2,6 @@ package tui
 
 import (
 	"fmt"
-	"os"
-	"strconv"
-	"strings"
 	"time"
 
 	tea "github.com/charmbracelet/bubbletea"
@@ -57,12 +54,6 @@ type model struct {
 	statusMessage string
 	statusExpiry  time.Time
 
-	// export modal
-	showExportModal bool
-	exportFilename  string
-	exportFormat    string // "csv" or "tsv"
-	exportError     string
-
 	// state persistence
 	rememberState bool
 }
@@ -223,11 +214,6 @@ func (m model) View() string {
 		return m.overlayModal(main, m.renderKillModal())
 	}
 
-	// overlay export modal on top of main view
-	if m.showExportModal {
-		return m.overlayModal(main, m.renderExportModal())
-	}
-
 	return main
 }
 
@@ -303,19 +289,12 @@ func (m model) matchesFilters(c collector.Connection) bool {
 }
 
 func (m model) matchesSearch(c collector.Connection) bool {
-	lportStr := strconv.Itoa(c.Lport)
-	rportStr := strconv.Itoa(c.Rport)
-	pidStr := strconv.Itoa(c.PID)
-
 	return containsIgnoreCase(c.Process, m.searchQuery) ||
 		containsIgnoreCase(c.Laddr, m.searchQuery) ||
 		containsIgnoreCase(c.Raddr, m.searchQuery) ||
 		containsIgnoreCase(c.User, m.searchQuery) ||
 		containsIgnoreCase(c.Proto, m.searchQuery) ||
-		containsIgnoreCase(c.State, m.searchQuery) ||
+		containsIgnoreCase(c.State, m.searchQuery)
-		containsIgnoreCase(lportStr, m.searchQuery) ||
-		containsIgnoreCase(rportStr, m.searchQuery) ||
-		containsIgnoreCase(pidStr, m.searchQuery)
 }
 
 func (m model) isWatched(pid int) bool {
@@ -361,62 +340,3 @@ func (m model) saveState() {
 		state.SaveAsync(m.currentState())
 	}
 }
-
-// exportConnections writes visible connections to a file in csv or tsv format
-func (m model) exportConnections() error {
-	visible := m.visibleConnections()
-
-	if len(visible) == 0 {
-		return fmt.Errorf("no connections to export")
-	}
-
-	file, err := os.Create(m.exportFilename)
-	if err != nil {
-		return err
-	}
-	defer func() { _ = file.Close() }()
-
-	// determine delimiter from format selection or filename
-	delimiter := ","
-	if m.exportFormat == "tsv" || strings.HasSuffix(strings.ToLower(m.exportFilename), ".tsv") {
-		delimiter = "\t"
-	}
-
-	header := []string{"PID", "PROCESS", "USER", "PROTO", "STATE", "LADDR", "LPORT", "RADDR", "RPORT"}
-	_, err = file.WriteString(strings.Join(header, delimiter) + "\n")
-	if err != nil {
-		return err
-	}
-
-	for _, c := range visible {
-		// escape fields that might contain delimiter
-		process := escapeField(c.Process, delimiter)
-		user := escapeField(c.User, delimiter)
-
-		row := []string{
-			strconv.Itoa(c.PID),
-			process,
-			user,
-			c.Proto,
-			c.State,
-			c.Laddr,
-			strconv.Itoa(c.Lport),
-			c.Raddr,
-			strconv.Itoa(c.Rport),
-		}
-		_, err = file.WriteString(strings.Join(row, delimiter) + "\n")
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// escapeField quotes a field if it contains the delimiter or quotes
-func escapeField(s, delimiter string) string {
-	if strings.Contains(s, delimiter) || strings.Contains(s, "\"") || strings.Contains(s, "\n") {
-		return "\"" + strings.ReplaceAll(s, "\"", "\"\"") + "\""
-	}
-	return s
-}

internal/tui/model_test.go

@@ -1,15 +1,12 @@
 package tui
 
 import (
-	"os"
+	"github.com/karol-broda/snitch/internal/collector"
-	"path/filepath"
-	"strings"
 	"testing"
 	"time"
 
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/x/exp/teatest"
-	"github.com/karol-broda/snitch/internal/collector"
 )
 
 func TestTUI_InitialState(t *testing.T) {
@@ -433,346 +430,3 @@ func TestTUI_FormatRemoteHelper(t *testing.T) {
 	}
 }
 
-func TestTUI_MatchesSearchPort(t *testing.T) {
-	m := New(Options{Theme: "dark"})
-
-	tests := []struct {
-		name        string
-		searchQuery string
-		conn        collector.Connection
-		expected    bool
-	}{
-		{
-			name:        "matches local port",
-			searchQuery: "3000",
-			conn:        collector.Connection{Lport: 3000},
-			expected:    true,
-		},
-		{
-			name:        "matches remote port",
-			searchQuery: "443",
-			conn:        collector.Connection{Rport: 443},
-			expected:    true,
-		},
-		{
-			name:        "matches pid",
-			searchQuery: "1234",
-			conn:        collector.Connection{PID: 1234},
-			expected:    true,
-		},
-		{
-			name:        "partial port match",
-			searchQuery: "80",
-			conn:        collector.Connection{Lport: 8080},
-			expected:    true,
-		},
-		{
-			name:        "no match",
-			searchQuery: "9999",
-			conn:        collector.Connection{Lport: 80, Rport: 443, PID: 1234},
-			expected:    false,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			m.searchQuery = tc.searchQuery
-			result := m.matchesSearch(tc.conn)
-			if result != tc.expected {
-				t.Errorf("matchesSearch() = %v, want %v", result, tc.expected)
-			}
-		})
-	}
-}
-
-func TestTUI_SortCycleIncludesRemote(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-
-	// start at default (Lport)
-	if m.sortField != collector.SortByLport {
-		t.Fatalf("expected initial sort field to be lport, got %v", m.sortField)
-	}
-
-	// cycle through all fields and verify raddr and rport are included
-	foundRaddr := false
-	foundRport := false
-	seenFields := make(map[collector.SortField]bool)
-
-	for i := 0; i < 10; i++ {
-		m.cycleSort()
-		seenFields[m.sortField] = true
-
-		if m.sortField == collector.SortByRaddr {
-			foundRaddr = true
-		}
-		if m.sortField == collector.SortByRport {
-			foundRport = true
-		}
-
-		if foundRaddr && foundRport {
-			break
-		}
-	}
-
-	if !foundRaddr {
-		t.Error("expected sort cycle to include SortByRaddr")
-	}
-	if !foundRport {
-		t.Error("expected sort cycle to include SortByRport")
-	}
-}
-
-func TestTUI_ExportModal(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.width = 120
-	m.height = 40
-
-	// initially export modal should not be shown
-	if m.showExportModal {
-		t.Fatal("expected showExportModal to be false initially")
-	}
-
-	// press 'x' to open export modal
-	newModel, _ := m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'x'}})
-	m = newModel.(model)
-
-	if !m.showExportModal {
-		t.Error("expected showExportModal to be true after pressing 'x'")
-	}
-
-	// type filename
-	for _, c := range "test.csv" {
-		newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{c}})
-		m = newModel.(model)
-	}
-
-	if m.exportFilename != "test.csv" {
-		t.Errorf("expected exportFilename to be 'test.csv', got '%s'", m.exportFilename)
-	}
-
-	// escape should close modal
-	newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyEsc})
-	m = newModel.(model)
-
-	if m.showExportModal {
-		t.Error("expected showExportModal to be false after escape")
-	}
-	if m.exportFilename != "" {
-		t.Error("expected exportFilename to be cleared after escape")
-	}
-}
-
-func TestTUI_ExportModalDefaultFilename(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.width = 120
-	m.height = 40
-
-	// add test data
-	m.connections = []collector.Connection{
-		{PID: 1234, Process: "nginx", Proto: "tcp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 80},
-	}
-
-	// open export modal
-	newModel, _ := m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'x'}})
-	m = newModel.(model)
-
-	// render export modal should show default filename hint
-	view := m.View()
-	if view == "" {
-		t.Error("expected non-empty view with export modal")
-	}
-}
-
-func TestTUI_ExportModalBackspace(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.width = 120
-	m.height = 40
-
-	// open export modal
-	newModel, _ := m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'x'}})
-	m = newModel.(model)
-
-	// type filename
-	for _, c := range "test.csv" {
-		newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{c}})
-		m = newModel.(model)
-	}
-
-	// backspace should remove last character
-	newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyBackspace})
-	m = newModel.(model)
-
-	if m.exportFilename != "test.cs" {
-		t.Errorf("expected 'test.cs' after backspace, got '%s'", m.exportFilename)
-	}
-}
-
-func TestTUI_ExportConnectionsCSV(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-
-	m.connections = []collector.Connection{
-		{PID: 1234, Process: "nginx", User: "www-data", Proto: "tcp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 80, Raddr: "*", Rport: 0},
-		{PID: 5678, Process: "node", User: "node", Proto: "tcp", State: "ESTABLISHED", Laddr: "192.168.1.1", Lport: 3000, Raddr: "10.0.0.1", Rport: 443},
-	}
-
-	tmpDir := t.TempDir()
-	csvPath := filepath.Join(tmpDir, "test_export.csv")
-	m.exportFilename = csvPath
-
-	err := m.exportConnections()
-	if err != nil {
-		t.Fatalf("exportConnections() failed: %v", err)
-	}
-
-	content, err := os.ReadFile(csvPath)
-	if err != nil {
-		t.Fatalf("failed to read exported file: %v", err)
-	}
-
-	lines := strings.Split(strings.TrimSpace(string(content)), "\n")
-	if len(lines) != 3 {
-		t.Errorf("expected 3 lines (header + 2 data), got %d", len(lines))
-	}
-
-	if !strings.Contains(lines[0], "PID") || !strings.Contains(lines[0], "PROCESS") {
-		t.Error("header line should contain PID and PROCESS")
-	}
-
-	if !strings.Contains(lines[1], "nginx") || !strings.Contains(lines[1], "1234") {
-		t.Error("first data line should contain nginx and 1234")
-	}
-
-	if !strings.Contains(lines[2], "node") || !strings.Contains(lines[2], "5678") {
-		t.Error("second data line should contain node and 5678")
-	}
-}
-
-func TestTUI_ExportConnectionsTSV(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-
-	m.connections = []collector.Connection{
-		{PID: 1234, Process: "nginx", User: "www-data", Proto: "tcp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 80, Raddr: "*", Rport: 0},
-	}
-
-	tmpDir := t.TempDir()
-	tsvPath := filepath.Join(tmpDir, "test_export.tsv")
-	m.exportFilename = tsvPath
-
-	err := m.exportConnections()
-	if err != nil {
-		t.Fatalf("exportConnections() failed: %v", err)
-	}
-
-	content, err := os.ReadFile(tsvPath)
-	if err != nil {
-		t.Fatalf("failed to read exported file: %v", err)
-	}
-
-	lines := strings.Split(strings.TrimSpace(string(content)), "\n")
-
-	// TSV should use tabs
-	if !strings.Contains(lines[0], "\t") {
-		t.Error("TSV file should use tabs as delimiters")
-	}
-
-	// CSV delimiter should not be present between fields
-	fields := strings.Split(lines[1], "\t")
-	if len(fields) < 9 {
-		t.Errorf("expected at least 9 tab-separated fields, got %d", len(fields))
-	}
-}
-
-func TestTUI_ExportWithFilters(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.showTCP = true
-	m.showUDP = false
-
-	m.connections = []collector.Connection{
-		{PID: 1, Process: "tcp_proc", Proto: "tcp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 80},
-		{PID: 2, Process: "udp_proc", Proto: "udp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 53},
-	}
-
-	tmpDir := t.TempDir()
-	csvPath := filepath.Join(tmpDir, "filtered_export.csv")
-	m.exportFilename = csvPath
-
-	err := m.exportConnections()
-	if err != nil {
-		t.Fatalf("exportConnections() failed: %v", err)
-	}
-
-	content, err := os.ReadFile(csvPath)
-	if err != nil {
-		t.Fatalf("failed to read exported file: %v", err)
-	}
-
-	lines := strings.Split(strings.TrimSpace(string(content)), "\n")
-
-	// should only have header + 1 TCP connection (UDP filtered out)
-	if len(lines) != 2 {
-		t.Errorf("expected 2 lines (header + 1 TCP), got %d", len(lines))
-	}
-
-	if strings.Contains(string(content), "udp_proc") {
-		t.Error("UDP connection should not be exported when UDP filter is off")
-	}
-}
-
-func TestTUI_ExportFormatToggle(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.width = 120
-	m.height = 40
-
-	// open export modal
-	newModel, _ := m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'x'}})
-	m = newModel.(model)
-
-	// default format should be csv
-	if m.exportFormat != "csv" {
-		t.Errorf("expected default format 'csv', got '%s'", m.exportFormat)
-	}
-
-	// tab should toggle to tsv
-	newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyTab})
-	m = newModel.(model)
-
-	if m.exportFormat != "tsv" {
-		t.Errorf("expected format 'tsv' after tab, got '%s'", m.exportFormat)
-	}
-
-	// tab again should toggle back to csv
-	newModel, _ = m.Update(tea.KeyMsg{Type: tea.KeyTab})
-	m = newModel.(model)
-
-	if m.exportFormat != "csv" {
-		t.Errorf("expected format 'csv' after second tab, got '%s'", m.exportFormat)
-	}
-}
-
-func TestTUI_ExportModalRenderWithStats(t *testing.T) {
-	m := New(Options{Theme: "dark", Interval: time.Hour})
-	m.width = 120
-	m.height = 40
-
-	m.connections = []collector.Connection{
-		{PID: 1, Process: "nginx", Proto: "tcp", State: "LISTEN", Laddr: "0.0.0.0", Lport: 80},
-		{PID: 2, Process: "postgres", Proto: "tcp", State: "LISTEN", Laddr: "127.0.0.1", Lport: 5432},
-		{PID: 3, Process: "node", Proto: "tcp", State: "ESTABLISHED", Laddr: "192.168.1.1", Lport: 3000},
-	}
-
-	m.showExportModal = true
-	m.exportFormat = "csv"
-
-	view := m.View()
-
-	// modal should contain summary info
-	if !strings.Contains(view, "3") {
-		t.Error("modal should show connection count")
-	}
-
-	// modal should show format options
-	if !strings.Contains(view, "CSV") || !strings.Contains(view, "TSV") {
-		t.Error("modal should show format options")
-	}
-}
-

internal/tui/symbols.go

@@ -34,7 +34,5 @@ const (
 
 	// misc
 	SymbolDash = string('\u2013') // en dash
-	SymbolExport = string('\u21E5') // rightwards arrow to bar
-	SymbolPrompt = string('\u276F') // heavy right-pointing angle quotation mark ornament
 )
 

internal/tui/view.go

@@ -203,7 +203,7 @@ func (m model) renderStatusLine() string {
 		return "  " + m.theme.Styles.Warning.Render(m.statusMessage)
 	}
 
-	left := "  " + m.theme.Styles.Normal.Render("t/u proto  l/e/o state  n/N dns  w watch  K kill  s sort  / search  x export  ? help  q quit")
+	left := "  " + m.theme.Styles.Normal.Render("t/u proto  l/e/o state  n/N dns  w watch  K kill  s sort  / search  ? help  q quit")
 
 	// show watched count if any
 	if m.watchedCount() > 0 {
@@ -271,7 +271,6 @@ func (m model) renderHelp() string {
   other
   ─────
   /            search
-  x            export to csv/tsv (enter filename)
   r            refresh now
   q            quit
 
@@ -302,8 +301,6 @@ func (m model) renderDetail() string {
 		value string
 	}{
 		{"process", c.Process},
-		{"cmdline", c.Cmdline},
-		{"cwd", c.Cwd},
 		{"pid", fmt.Sprintf("%d", c.PID)},
 		{"user", c.User},
 		{"protocol", c.Proto},
@@ -371,119 +368,6 @@ func (m model) renderKillModal() string {
 	return strings.Join(lines, "\n")
 }
 
-func (m model) renderExportModal() string {
-	visible := m.visibleConnections()
-
-	// count protocols and states for preview
-	tcpCount, udpCount := 0, 0
-	listenCount, estabCount, otherCount := 0, 0, 0
-	for _, c := range visible {
-		if c.Proto == "tcp" || c.Proto == "tcp6" {
-			tcpCount++
-		} else {
-			udpCount++
-		}
-		switch c.State {
-		case "LISTEN":
-			listenCount++
-		case "ESTABLISHED":
-			estabCount++
-		default:
-			otherCount++
-		}
-	}
-
-	var lines []string
-
-	// header
-	lines = append(lines, "")
-	headerText := "  " + SymbolExport + "  EXPORT CONNECTIONS  "
-	lines = append(lines, m.theme.Styles.Header.Render(headerText))
-	lines = append(lines, m.theme.Styles.Border.Render("  "+strings.Repeat(BoxHorizontal, 36)))
-	lines = append(lines, "")
-
-	// stats preview section
-	lines = append(lines, m.theme.Styles.Normal.Render("  "+SymbolBullet+" summary"))
-	lines = append(lines, fmt.Sprintf("    total:   %s",
-		m.theme.Styles.Success.Render(fmt.Sprintf("%d connections", len(visible)))))
-
-	protoSummary := fmt.Sprintf("    proto:   %s tcp  %s udp",
-		m.theme.Styles.GetProtoStyle("tcp").Render(fmt.Sprintf("%d", tcpCount)),
-		m.theme.Styles.GetProtoStyle("udp").Render(fmt.Sprintf("%d", udpCount)))
-	lines = append(lines, protoSummary)
-
-	stateSummary := fmt.Sprintf("    state:   %s listen  %s estab  %s other",
-		m.theme.Styles.GetStateStyle("LISTEN").Render(fmt.Sprintf("%d", listenCount)),
-		m.theme.Styles.GetStateStyle("ESTABLISHED").Render(fmt.Sprintf("%d", estabCount)),
-		m.theme.Styles.Normal.Render(fmt.Sprintf("%d", otherCount)))
-	lines = append(lines, stateSummary)
-	lines = append(lines, "")
-
-	// format selection
-	lines = append(lines, m.theme.Styles.Normal.Render("  "+SymbolBullet+" format"))
-
-	csvStyle := m.theme.Styles.Normal
-	tsvStyle := m.theme.Styles.Normal
-	csvIndicator := "  "
-	tsvIndicator := "  "
-
-	if m.exportFormat == "tsv" {
-		tsvStyle = m.theme.Styles.Success
-		tsvIndicator = m.theme.Styles.Success.Render(SymbolSelected + " ")
-	} else {
-		csvStyle = m.theme.Styles.Success
-		csvIndicator = m.theme.Styles.Success.Render(SymbolSelected + " ")
-	}
-
-	formatLine := fmt.Sprintf("    %s%s    %s%s",
-		csvIndicator, csvStyle.Render("CSV (comma)"),
-		tsvIndicator, tsvStyle.Render("TSV (tab)"))
-	lines = append(lines, formatLine)
-	lines = append(lines, m.theme.Styles.Border.Render("    "+strings.Repeat(BoxHorizontal, 8)+"  press "+m.theme.Styles.Warning.Render("tab")+" to toggle"))
-	lines = append(lines, "")
-
-	// filename input
-	lines = append(lines, m.theme.Styles.Normal.Render("  "+SymbolBullet+" filename"))
-
-	ext := ".csv"
-	if m.exportFormat == "tsv" {
-		ext = ".tsv"
-	}
-
-	filenameDisplay := m.exportFilename
-	if filenameDisplay == "" {
-		filenameDisplay = "connections"
-	}
-
-	inputBox := fmt.Sprintf("    %s %s%s",
-		m.theme.Styles.Success.Render(SymbolPrompt),
-		m.theme.Styles.Warning.Render(filenameDisplay),
-		m.theme.Styles.Success.Render(ext+"▌"))
-	lines = append(lines, inputBox)
-	lines = append(lines, "")
-
-	// error display
-	if m.exportError != "" {
-		lines = append(lines, m.theme.Styles.Error.Render(fmt.Sprintf("  %s %s", SymbolWarning, m.exportError)))
-		lines = append(lines, "")
-	}
-
-	// preview of fields
-	lines = append(lines, m.theme.Styles.Border.Render("  "+strings.Repeat(BoxHorizontal, 36)))
-	fieldsPreview := "  fields: PID, PROCESS, USER, PROTO, STATE, LADDR, LPORT, RADDR, RPORT"
-	lines = append(lines, m.theme.Styles.Normal.Render(truncate(fieldsPreview, 40)))
-	lines = append(lines, "")
-
-	// action buttons
-	lines = append(lines, fmt.Sprintf("  %s export   %s toggle format   %s cancel",
-		m.theme.Styles.Success.Render("[enter]"),
-		m.theme.Styles.Warning.Render("[tab]"),
-		m.theme.Styles.Error.Render("[esc]")))
-	lines = append(lines, "")
-
-	return strings.Join(lines, "\n")
-}
-
 func (m model) overlayModal(background, modal string) string {
 	bgLines := strings.Split(background, "\n")
 	modalLines := strings.Split(modal, "\n")