CODEWITHSUNDEEP
c#pythoncdllimport
vs4vijay
vs4vijay

Reputation: 1205

Viewing Contents Of a DLL File

is this possible to view contents and Functions of a DLL file...
few times ago i was playing with OlyDBG then i found there is option for viewing contents of dll...
so suggest me any good tool or soft for this...

and suppose i have a DLL named "Python27.dll"...
now i need to view the content of this DLL so what do i do...
thanx...

Upvotes: 4

Views: 4784

Answers (4)

Mark
Mark

Reputation: 108567

On Windows, DUMPBIN provides some DLL inspection capabilities. For example:

DUMPBIN /EXPORTS C:\path\to\my.dll

will display all the exported definitions.

Upvotes: 1

John Machin
John Machin

Reputation: 83032

Dependency Walker may provide what you want/need -- it certainly shows all the entry points in a DLL.

Upvotes: 3

Alex Martelli
Alex Martelli

Reputation: 882751

While not trivial to use (you need to understand the format of a Portable Executable, aka PE, file), pefile seems a good, powerful and versatile tool for the purpose of viewing a DLL or any other PE file (I wouldn't risk using it to change such a file, although I see it's one of its features).

For example, excerpting the module's usage examples (and editing to show a dll instead of the equally hypothetical filename they use, which is an exe;-):

import pefile
pe =  pefile.PE(‘/path/to/pefile.dll’)
for exp in pe.DIRECTORY_ENTRY_EXPORT.symbols:
  print hex(pe.OPTIONAL_HEADER.ImageBase + exp.address), exp.name, exp.ordinal

should, according to the wikipage I pointed to, display something like:

0x7ca0ab4f SHUpdateRecycleBinIcon 336
0x7cab44c0 SHValidateUNC 173
0x7ca7b0aa SheChangeDirA 337
0x7ca7b665 SheChangeDirExA 338
0x7ca7b3e1 SheChangeDirExW 339
0x7ca7aec6 SheChangeDirW 340
0x7ca8baae SheConvertPathW 341

Upvotes: 5

karlw
karlw

Reputation: 668

I've done some work with ctypes, and loading dlls in windows, but I don't think DLL have any sort of introspection. This really isn't a big deal, because all of the function calls in DLLs are static. If your trying to use a undocumented DLL, you would not only need to know the names of the functions, but also the parameters of the functions. You would have to reverse engineer the DLL, no small task.

So, in my opinion, I would say no.

Upvotes: 0

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