VC遍历dll导出函数

来源：互联网发布：ui设计需要编程吗编辑：程序博客网时间：2024/05/22 12:47

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<windows.h>#include<stdio.h>#include<Imagehlp.h>#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<unNoOfExports; i++){       // Memo1->Lines->Add(lppBuffer[i]);sprintf(func,"%d %s",i,lppBuffer[i]);printf("%s \n",func);}    for(i=0; i<unNoOfExports; 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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