How to get a offset ?

Hello sir ! :)

I have a problem, I've read the documentation but I can't understand how to get a offset like 0xbffff63e ? I can't execute the shellcode

Thanks

[K2]

In genreal that should be availale for testing purposes in the local stack e.g. int foo; &foo; . The examples or linked PDF should show some of that. This code was all developed for -m32 abi so if it's being ported to 64, it would be drmatically more awesome and stuff ;) if anyone want's so seem some more games it cam be done, feel free to take that on and I might be motivated to help out with a redux.