Update dependencies

vendor/tailscale.com/paths/paths_unix.go

@@ -0,0 +1,88 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build !windows && !wasm && !plan9 && !tamago
+
+package paths
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+
+	"golang.org/x/sys/unix"
+	"tailscale.com/version/distro"
+)
+
+func init() {
+	stateFileFunc = stateFileUnix
+	ensureStateDirPerms = ensureStateDirPermsUnix
+}
+
+func statePath() string {
+	switch runtime.GOOS {
+	case "linux":
+		return "/var/lib/tailscale/tailscaled.state"
+	case "freebsd", "openbsd":
+		return "/var/db/tailscale/tailscaled.state"
+	case "darwin":
+		return "/Library/Tailscale/tailscaled.state"
+	case "aix":
+		return "/var/tailscale/tailscaled.state"
+	default:
+		return ""
+	}
+}
+
+func stateFileUnix() string {
+	if distro.Get() == distro.Gokrazy {
+		return "/perm/tailscaled/tailscaled.state"
+	}
+	path := statePath()
+	if path == "" {
+		return ""
+	}
+
+	try := path
+	for range 3 { // check writability of the file, /var/lib/tailscale, and /var/lib
+		err := unix.Access(try, unix.O_RDWR)
+		if err == nil {
+			return path
+		}
+		try = filepath.Dir(try)
+	}
+
+	if os.Getuid() == 0 {
+		return ""
+	}
+
+	// For non-root users, fall back to $XDG_DATA_HOME/tailscale/*.
+	return filepath.Join(xdgDataHome(), "tailscale", "tailscaled.state")
+}
+
+func xdgDataHome() string {
+	if e := os.Getenv("XDG_DATA_HOME"); e != "" {
+		return e
+	}
+	return filepath.Join(os.Getenv("HOME"), ".local/share")
+}
+
+func ensureStateDirPermsUnix(dir string) error {
+	if filepath.Base(dir) != "tailscale" {
+		return nil
+	}
+	fi, err := os.Stat(dir)
+	if err != nil {
+		return err
+	}
+	if !fi.IsDir() {
+		return fmt.Errorf("expected %q to be a directory; is %v", dir, fi.Mode())
+	}
+	const perm = 0700
+	if fi.Mode().Perm() == perm {
+		// Already correct.
+		return nil
+	}
+	return os.Chmod(dir, perm)
+}