[WoW] [3.0.9] [C#] Results of lua_dostring

[SKU]

It's bruteforce, it's messy, and it's absolutely retarded. I tried to swallow the C++ information and recreate it in C#.

"LOL OMG MY EYES" - yeah, I know.

Keep in mind: All the following snippets are in no way perfect, but they seem to do their job.

Any ideas / suggestions for improvement? Let me know.
Just wanna flame me for how ugly it is? Please don't hurt my feelings.
If you really want to use these as a basis, then feel free to do so.

Patch&Restore the invalid-pointer-check function: NoMorePasting.com

Register an own lua function (similar to registring an own console function): NoMorePasting.com

A possible way of grabbing the strings: NoMorePasting.com

The 'core': The own lua function: NoMorePasting.com

A possible main-method to try it: NoMorePasting.com

Note that I did include the GetTop(L) but didn't feel like doing another loop (ASM 4tw), so it only copies the object with the index 1.

I really want to learn more than pointer arithmetics in C++ now...

Possible result: http://img178.imageshack.us/img178/1549/dostringopt.jpg

Credits as usual Cypher, jjaa, Shynd
Greetings

[Cypher]

Holy ****ing Christ I would hate to maintain that.

Good job on getting it working on C# though. Tbh even if I were doing a C# framework I'd still do parts in C++, much too lazy to deal with writing that much ASM.

[Nesox]

Indeed very niceley done, good job

[jjaa]

Nice work, but i think you are getting to the point were you should be using C++

[Apoc]

That's actually incredibly well done.

+rep to you SKU.

[SKU]

Nice work, but i think you are getting to the point were you should be using C++

-.- Yah I guess you're right. Comparing the code you posted in the other lua thread with my implementation.. holy crap. I know it's probably been posted before, but any good (free) eBook / guide you could recommend? My C++ knowledge ends at basic OOP / pointer arithmetics. The only thing we did in the C++ class were math algorithms, nothing of the interesting stuff. *hopes apoc is not in a banning mood*

Edit: Here my 1st attempt, using the "print" funtion of WoW to grab the result. So any lua_dostring would look like this: lua.doString("print(GetBattlefieldStatus(1))");
Although I doubt Blizzard likes that. http://www.nomorepasting.com/getpaste.php?pasteid=25059

[Robske]

-.- Yah I guess you're right. Comparing the code you posted in the other lua thread with my implementation.. holy crap. I know it's probably been posted before, but any good (free) eBook / guide you could recommend? My C++ knowledge ends at basic OOP / pointer arithmetics. The only thing we did in the C++ class were math algorithms, nothing of the interesting stuff. *hopes apoc is not in a banning mood*

Atleast you have a C++ class, I get to work in Java for my uni. Madness.

Cypher and others have posted ample books to start learning C++ before, but I was wondering, as C++ is such a huge language, are there any books out there that cover 'this' in detail (The general concept of working from inside another process, generally the style of C++ that gets posted here)

Oh and great job on the lua stuff :]

[Cypher]

Other than general reversing books, no.

There is no book that teaches C++ in the concept of using it for 'hacking'.

You will often come across snippets, tidbits, etc in reversing books though.

[SKU]

Atleast you have a C++ class, I get to work in Java for my uni. Madness.

Cypher and others have posted ample books to start learning C++ before, but I was wondering, as C++ is such a huge language, are there any books out there that cover 'this' in detail (The general concept of working from inside another process, generally the style of C++ that gets posted here)

Oh and great job on the lua stuff :]

Thanks Apoc and Rob, and I had a C++ class, now it's java aswell, and we don't even 'program' but rather proof that algorithms really do what they're supposed to do...

[Cypher]

Traditional education sucks.

[Xarg0]

Thanks Apoc and Rob, and I had a C++ class, now it's java aswell, and we don't even 'program' but rather proof that algorithms really do what they're supposed to do...

Even thought I don't yet study informatics I've got a hold on some of those prove the correctness of algorithm xy papers and they were full of variable scope mistakes xD
Guess if you're an informatic prof you don't need to write working code at all :>

[Robske]

Any 'nil' return value causes a null-pointer crash

Example : API IsMounted - WoWWiki - Your guide to the World of Warcraft
/run G(IsMounted()) properly returns 1 when I'm mounted, crashes when dismounted (nil)

[Cypher]

Had the same problem.

Reason:
When WoW returns nil it really does return nil. That means that if ToString returns a null pointer on a valid param then the param is actually "nil". I had to handle that explicitly.

Example:

            // Convert result to string
            const char* Out = LuaMgr::Get()->ToString(pState,i);
            // Boolean 'false' returns a null pointer and must be converted
            // manually.
            if (!Out  || !Out[0])
                Out = "nil";

[SKU]

Had the same problem.

Reason:
When WoW returns nil it really does return nil. That means that if ToString returns a null pointer on a valid param then the param is actually "nil". I had to handle that explicitly.

Example:

            // Convert result to string
            const char* Out = LuaMgr::Get()->ToString(pState,i);
            // Boolean 'false' returns a null pointer and must be converted
            // manually.
            if (!Out  || !Out[0])
                Out = "nil";

Oh, totally forgot to do a test eax,eax je ByeBye after tostring. Thanks for the info.

[Robske]

Bandaid fixes ftw

Memory.Asm.AddLine("Nil:");
Memory.Asm.AddLine("mov byte [{0}], 0x4E", pszString); // N
Memory.Asm.AddLine("mov byte [{0}+1], 0x49", pszString); // I
Memory.Asm.AddLine("mov byte [{0}+2], 0x4C", pszString); // L
Memory.Asm.AddLine("mov eax, {0}", pszString);