Honda Accord smelling oil through the air vents

dont try to start your engine with no oil in the sump.you will cause your engine to seize up,first you need to plug the hole or replace the sump cover and then put new oil in your engine then try and turn the engine over slowly(by hand if possible)to get the oil circulated. if this doesnt help you might have already done serious damage so in reply to your question it wont be a quick fix.