I think I have a small crack in my oil sump

There was an object in the road I went over at night I heard a bump and noticed by the time I had got home both the oil and engine management lights had come on I checked the oil after a while and it was completly dry (I do check the oil weekly and know that it shouldnt have been empty. The next day I tried topping up the oil and checked under the car and noticed the oil pooring from a concentrated area of the sump,
Is there any way I can seal the leak with out changing the sump just for a temp fix so I can run the car and cheak there is no other damage,
Kind regards Blacksqueek