QString DeviceServiceAction::id() const
{
    if (m_service.name().isEmpty() && m_service.exec().isEmpty()) {
        return QString();
    } else {
        return "#Service:"+m_service.name()+m_service.exec();
    }
}

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.