监控应用程序调用DLL

问题描述

简而言之：我想监控从应用程序到DLL的所选呼叫。

我们有一个旧的VB6应用程序，我们丢失了源代码（公司当时没有使用源代码控制..）。此应用程序使用第三方DLL。

我想在一个新的C ++应用程序中使用此DLL。不幸的是，DLL API只是部分记录在案，所以我不知道如何调用一些函数。我有功能签名。

由于VB6应用程序使用这个DLL，我想看看它如何调用几个函数。到目前为止，我已经试过或看过 -

1. - 要求我为每个函数编写C ++代码。由于我只需要记录这些值，所以看起来好像是一个过分的杀手。


2. - 与1相同，但允许使用.NET语言编写代码。


3. ， - 我还是要写代码对于每个函数，这一次在Python中。此外，我必须使用 struct 模块在Python中进行许多转换，因为大多数函数使用指针传递值。

由于我只需要记录功能参数，我想要一个简单的解决方案。有没有任何自动化工具，我可以告诉哪些功能要监视和签名，然后获取详细的日志文件？

解决方案

p>更多的Google搜索找到我要找的内容：。它允许编写文本文件，例如：

  CustomApi.dll | void NameOfFunction（long param1，double& param2）; 
  

稍后，程序中可以使用这些文件将所有调用记录到 NameOfFunction 。现在我只需要弄清楚如何记录数组和结构参数。

In short: I want to monitor selected calls from an application to a DLL.

We have an old VB6 application for which we lost the source code (the company wasn't using source control back then..). This application uses a 3rd party DLL.

I want to use this DLL in a new C++ application. Unfortunately the DLL API is only partially documented, so I don't know how to call some functions. I do have the functions signature.

Since the VB6 application uses this DLL, I want to see how it calls several functions. So far I've tried or looked at -

1. APIHijack - requires me to write C++ code for each function. Since I only need to log the values, it seems like an overkill.
2. EasyHook - same as 1, but allows writing in the code in .NET language.
3. OllyDbg with uHooker - I still have to write code for each function, this time in Python. Also, I have to do many conversions in Python using the struct module, since most functions pass values using pointers.

Since I only need to log functions parameters I want a simple solution. Is there any automated tool, for which I could tell which functions to monitor and their signature, and then get a detailed log file?

解决方案

Some more Google searching found what I was looking for: WinAPIOverride32. It allows writing text files such as:

CustomApi.dll|void NameOfFunction(long param1, double& param2);

Later on, these files can be used inside the program to log all calls to NameOfFunction. Now I just need to figure out how to log arrays and structs parameters.

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