text: package dbus
  
  import (
  	"errors"
  	"fmt"
  	"os"
  	"os/exec"
  )
  
  const defaultSystemBusAddress = "unix:path=/opt/local/var/run/dbus/system_bus_socket"
  
  func getSessionBusPlatformAddress() (string, error) {
  	cmd := exec.Command("launchctl", "getenv", "DBUS_LAUNCHD_SESSION_BUS_SOCKET")
  	b, err := cmd.CombinedOutput()
  
  	if err != nil {
  		return "", err
  	}
  
  	if len(b) == 0 {
  		return "", errors.New("dbus: couldn't determine address of session bus")
  	}
  
  	return "unix:path=" + string(b[:len(b)-1]), nil
  }
  
  func getSystemBusPlatformAddress() string {
  	address := os.Getenv("DBUS_LAUNCHD_SESSION_BUS_SOCKET")
  	if address != "" {
  		return fmt.Sprintf("unix:path=%s", address)
  	}
  	return defaultSystemBusAddress
  }
  
  func tryDiscoverDbusSessionBusAddress() string {
  	return ""
  }
  