Viewing DLL Functions and parameters

[underplay]

Hi. i was wondering if there is a way to view the functions inside a .dll AND the parameters.

Example:

FunctionBlah(char* Test)

If there is no way to do this, is there a way to watch a program access a .dll and figure out the function parameters?

Any help appreicated!!

[PadexArt]

Open the DLL in Dependency Walker. The tool ships with Visual Studio. You'll get there a list of the functions in that DLL. I assume there should be some function that would allow you to achieve the same result programatically.

[Kheun]

Dependency Walker does display the list of functions available in the dll. However, it doesn't show the parameter list. I am not sure if it is possible to find out the parameter list though.

[underplay]

hmmm tried dependency walker and a few other programs, but they dont show the function parameters

anybody??

[PiyuNewe]

Hi,

Few days back i have asked same kind of question on this forum. Form somebody i got the response that it is possible through COM component.

'underlay', what all other tools you have used?

However, Dependancy walker is showing you only functions exported but not the parameter list. I working on this problem; may be i will reinitiate this thread once i finished.

-PiyuNewe

[PadexArt]

I working on this problem; may be i will reinitiate this thread once i finished.

Please do so. Lots of people do not bother providing feedback to the solutions they received.

[ACS_Solver]

Is there any update on this? It would be highly useful!

[bashish]

I tired to search on google few days back, but didn't find any solution. I think if any one knows good assembly can help us.

bashish

[krmed]

If you know the decorated name, you can use the undname utility to see the parameters. For example, if the decorated name is ?a@@YAHD@Z, when you give the command

undname -f ?a@@YAHD@Z

the result shows:

D:\>undname -f ?a@@YAHD@Z
Microsoft« Windows« Operating System
UNDNAME Version 5.1.2600.0Copyright (c) Microsoft Corporation. All rights reserv
ed.

>> ?a@@YAHD@Z == int __cdecl a(char)

D:\>

undname is normally found in your Program Files\Microsoft Visual Studio\Common\Tools folder.

Hope that helps.

[Mick]

And in code it would be UnDecorateSymbolName(...)

[ACS_Solver]

Wow that's great, thanks... I wonder if any of the normal programs that analyze PEs can give me the decorated name of a function?

EDIT: Ahh, Dumpbin does do that, on OBJ files at least... I hope it works for DLLs too.

[kirants]

Does name decoration depend on the complier or is it standardised ?

[krmed]

Guess I'm not sure if it's standard or not. Good question.

Since undname is from Microsoft and this is the Visual C++ forum, I just assumed (bad idea, I know), that we're dealing with MS code.

[kirants]

Another thing is.. if it is extern "C"ed function, the param info is not there in the function name, right ? So, undecorate wouldn't help..

Anyways, I get the feeling this method can be used in restricted cases..
But, it's a good question though.. probably that's the reason, there ain't any tools that do that

[bashish]

Hey,

That's a good tool, but you need decorated name .

bashish