Diff Leak?

I'm not sure what is leaking but looks like its the diff. Its the last step from the gearbox to the driveshaft so im guessing its the clutch or diff i dont realy know what's what down there lol Its a yellow slippy liquid like oil but cleaner? Im thinking its a gasket cos its leaking at the seal. Theres also a worn bearing whine which i think could be from lack of oil? I duno im totaly clueless when it comes to this stuff. Ive got a civic if that matters

So where exactly is the oil coming from? where the driveshaft meets the box?

no its the next seal closer to the box from there, if that makes sence? I cant really explain it ill get a pic tomorow

what car exactly is it?

ek3 civic. im prety sure its a gasket problem. will it last 300 miles? because i dont have time to get it fixed for atleast a week. also it doesnt leave a pool after i drive away so it cant be leaking that badly, unless its all drained already ofcourse.. I took it to honda to replace my driveshafts a while ago so maybe it was when they were replacing the fluid it wasnt tightened properly or whatever. I just wanted to check here before ordering a gasket and trying to fix it only to get covere in oil and not have any to top up with

if its just a slight leak (only one of two drops a night) then it should be ok for a while