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[Days of Future Past] What claws does Wolverine have & how did he get them?

In the dark future he has adamantium claws again, after they got cut off in Japan, how did he get them?  
And in the good future what claws does he have? Because would he really land in the same trap with Striker?
gpt
One possibility is that he just went out, found the severed claws, and essentially spliced them back on by breaking off his bone claws where the metal ended and holding the adamantium claw to the stump, letting the two pieces grow together. 

Either that or Magneto helped him out. He's been shown to be capable of manipulating adamantium before, so it's not a stretch to say he could do it again.