I would imagine they offered him a one year deal as good faith for being a good servant to the club (similar to us with Albrighton), but it would have been something like;
Fulham - You've been a good servant, we'll give you a 1 year deal on reduced wages and as emergency backup only.
Rudkin - You have prem experience in abundance!!!! We'll give you 3 year deal on whatever wages you want, plus you'll play every game, no matter how shit you actually are.