Function IsMacSysExt

version/prop.go:109–126

IsMacSysExt reports whether this binary is the system extension shipped as part of the standalone "System Extension" (a.k.a. "macsys") version of Tailscale for macOS.

()

// the standalone "System Extension" (a.k.a. "macsys") version of Tailscale
// for macOS.
func IsMacSysExt() bool {
	if runtime.GOOS != "darwin" {
		return false
	}
	return isMacSysExt.Get(func() bool {
		if AppIdentifierFn != nil {
			return AppIdentifierFn() == macsysExtBundleId
		}

		// TODO (barnstar): This check should be redundant once all relevant callers
		// use AppIdentifierFn.
		exe, err := os.Executable()
		if err != nil {
			return false
		}
		return filepath.Base(exe) == macsysExtBundleId
	})
}

var isMacAppStore lazy.SyncValue[bool]