VC遍历dll导出函数

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参考文章：http://www.ccrun.com/article.asp?i=653&d=b2m5o1

代码：

 // ViewDllFunc.cpp : Defines the entry point for the console application.
 //

 #include "stdafx.h"
 #include
 #include
 #include
 #pragma comment(lib,"Imagehlp.lib")

 bool GetDLLFileExports(char *szFileName, UINT *nNoOfExports, char **&pszFunctions);

 int main(int argc, char* argv[])
 {
     UINT unNoOfExports=0;
     char **lppBuffer;

     GetDLLFileExports("dllA.dll", &unNoOfExports, lppBuffer);

     char func[256];
     memset(func,0,sizeof(func));
     for(UINT i=0; i
     {
        // Memo1->Lines->Add(lppBuffer[i]);
         sprintf(func,"%d %s",i,lppBuffer[i]);
         printf("%s \n",func);
     }

     for(i=0; i
         delete []lppBuffer[i];

     delete []lppBuffer;

     printf("Hello World!\n");
     getchar();
     return 0;
 }


 bool GetDLLFileExports(char *szFileName, UINT *nNoOfExports, char **&pszFunctions)
 {
     HANDLE hFile;
     HANDLE hFileMapping;
     LPVOID lpFileBase;
     PIMAGE_DOS_HEADER pImg_DOS_Header;
     PIMAGE_NT_HEADERS pImg_NT_Header;
     PIMAGE_EXPORT_DIRECTORY pImg_Export_Dir;

     hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ,NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
     if(hFile == INVALID_HANDLE_VALUE)
         return false;

     hFileMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
     if(hFileMapping == 0)
     {
         CloseHandle(hFile);
         return false;
     }

     lpFileBase = MapViewOfFile(hFileMapping, FILE_MAP_READ, 0, 0, 0);
     if(lpFileBase == 0)
     {
         CloseHandle(hFileMapping);
         CloseHandle(hFile);
         return false;
     }

     pImg_DOS_Header = (PIMAGE_DOS_HEADER)lpFileBase;
     pImg_NT_Header = (PIMAGE_NT_HEADERS)(
             (LONG)pImg_DOS_Header + (LONG)pImg_DOS_Header->e_lfanew);

     if(IsBadReadPtr(pImg_NT_Header, sizeof(IMAGE_NT_HEADERS))
             || pImg_NT_Header->Signature != IMAGE_NT_SIGNATURE)
     {
     UnmapViewOfFile(lpFileBase);
     CloseHandle(hFileMapping);
     CloseHandle(hFile);
     return false;
     }

     pImg_Export_Dir = (PIMAGE_EXPORT_DIRECTORY)pImg_NT_Header->OptionalHeader
             .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
     if(!pImg_Export_Dir)
     {
         UnmapViewOfFile(lpFileBase);
         CloseHandle(hFileMapping);
         CloseHandle(hFile);
         return false;
     }
     // 63 63 72 75 6E 2E 63 6F 6D
     pImg_Export_Dir= (PIMAGE_EXPORT_DIRECTORY)ImageRvaToVa(pImg_NT_Header,
             pImg_DOS_Header, (DWORD)pImg_Export_Dir, 0);

     DWORD **ppdwNames = (DWORD **)pImg_Export_Dir->AddressOfNames;

     ppdwNames = (PDWORD*)ImageRvaToVa(pImg_NT_Header,
             pImg_DOS_Header, (DWORD)ppdwNames, 0);
     if(!ppdwNames)
     {
         UnmapViewOfFile(lpFileBase);
         CloseHandle(hFileMapping);
         CloseHandle(hFile);
         return false;
     }

     *nNoOfExports = pImg_Export_Dir->NumberOfNames;
     pszFunctions = new char*[*nNoOfExports];

     for(UINT i=0; i < *nNoOfExports; i++)
     {
         char *szFunc=(PSTR)ImageRvaToVa(pImg_NT_Header, pImg_DOS_Header, (DWORD)*ppdwNames, 0);

         pszFunctions[i] = new char[strlen(szFunc)+1];
         strcpy(pszFunctions[i],szFunc);

         ppdwNames++;
     }
     UnmapViewOfFile(lpFileBase);
     CloseHandle(hFileMapping);
     CloseHandle(hFile);
     return true;
 }

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