c++ - 用于 Visual Studio 6 代码兼容性的 Visual Studio 2015

Question

在 Windows Server 2012 上，我安装了 Visual Studio 2015。现在我必须在 VC++ 2015 中构建基于 Visual Studio C++ 6 的工作项目，但它会显示各种错误和警告，例如:

1>------ Build started: Project: Exewrap, Configuration: Debug Win32
------ 1>  Pewrap.cpp 1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\afx.h(38): warning C4996: 'MBCS_Support_Deprecated_In_MFC': MBCS support in MFC is deprecated and may be removed in a future version of MFC. 1>  C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\atlmfc\include\afx.h(33): note: see declaration of 'MBCS_Support_Deprecated_In_MFC' 1>  _WIN32_WINNT not defined. Defaulting to _WIN32_WINNT_MAXVER (see WinSDKVer.h) 1>c:\muazzam\exewrap\Pe.h(17): warning C4200: nonstandard extension used: zero-sized array in struct/union 1>  c:\muazzam\exewrap\Pe.h(17): note: Cannot generate copy-ctor or copy-assignment operator when UDT contains a zero-sized array 1>Pewrap.cpp(291): warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\stdio.h(205): note: see declaration of 'fopen' 1>Pewrap.cpp(517): error C2065: 'i': undeclared identifier 1>Pewrap.cpp(546): error C2065: 'i': undeclared identifier 1>Pewrap.cpp(551): error C2065: 'i': undeclared identifier 1>Pewrap.cpp(361): warning C4996: 'stricmp': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name:
_stricmp. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(568): note: see declaration of 'stricmp' 1>Pewrap.cpp(362): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use
_CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(364): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use
_CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(365): warning C4996: 'stricmp': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _stricmp. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(568): note: see declaration of 'stricmp' 1>Pewrap.cpp(366): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(368): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(369): warning C4996: 'stricmp': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _stricmp. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(568): note: see declaration of 'stricmp' 1>Pewrap.cpp(370): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use
_CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(372): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use
_CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(403): warning C4996: 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(119): note: see declaration of 'strcpy' 1>Pewrap.cpp(409): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(410): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(411): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(412): warning C4996: 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(346): note: see declaration of 'strncpy' 1>Pewrap.cpp(480): warning C4996: 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(119): note: see declaration of 'strcpy' 1>Pewrap.cpp(494): warning C4996: 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\string.h(119): note: see declaration of 'strcpy' 1>Pewrap.cpp(566): warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. 1>  C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\stdio.h(205): note: see declaration of 'fopen'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

我在 VC++6 的配置管理器中没有看到任何选项。

我认为可能还有一些其他配置选项，但对此了解不多。如果有人可以提供帮助，请告诉我。

此外，我必须重用代码并使用适用于 Android 和 IOS 手机的 VS Studio 2015 跨平台 IDE 构建应用程序

那么如何升级应该兼容最新版本VC++的VC++6代码。同时this显示:

Visual Studio 2012 and Visual Studio 2013 do not support debugging applications built with Visual C++ 6; to debug these applications, use earlier versions of Visual Studio.

是先从VC++6->VC++2010升级项目，然后用高版本构建项目，还是有直接的方法？

更新:出现错误的代码是:

bool Pewrap::Process(PPROTECTIONDETAIL pDetail)
{
    LPVOID pPosition = NULL;
    LPVOID pImportBegin = NULL;
    DWORD dPosition = 0;
    DWORD dImportRva = 0;
    USERDATA SavedInfo;
    PIMAGE_IMPORT_DESCRIPTOR pImportDesc;
    PIMAGE_IMPORT_BY_NAME pImpByName;
    DWORD * ThunkPtr;
    PSIZEINFO pSize=NULL;
    PROTECTEDINFO ProtInfo;

    memset(&SavedInfo,0,sizeof(USERDATA));
    pResBase = 0;
    if(Loaded == true)
    {
        CloseFile();
    }
    if(Loaded == false)
    {
        if(LoadFile(EXTRASIZE)==false)
        {
            return false;
        }
    }
    if(pDetail->ProtType == PROTECTION_STRONG)
    {
        UseVGCrypt = 1;
        SavedInfo.ProtType = PROTECTION_STRONG;
    }
    else
    {
        UseVGCrypt = 0;
        SavedInfo.ProtType = PROTECTION_MEDIUM;
    }

    unsigned char ProdId[PROD_ID_LEN];
    memset(ProdId,0,sizeof(ProdId));

    if(GetProtectedInfo(pDetail->Destination,&ProtInfo)==false)
    {
        GenRsaPrime((DIGIT_T*)ProdId,MOD_SIZE);
        ProdId[0]= ProdId[0] & RSA_MESSAGE_HIGHBIT_MASK;    // needed for rsa algorithm. 

    }
    else
    {
        memcpy(ProdId,ProtInfo.prodid,PROD_ID_LEN);
        if(stricmp(pDetail->Author,"None")==0)
            strncpy(pDetail->Author,ProtInfo.Author,sizeof(pDetail->Author));
        else
            strncpy(ProtInfo.Author,pDetail->Author,sizeof(ProtInfo.Author));
        if(stricmp(pDetail->Title,"None")==0)
            strncpy(pDetail->Title,ProtInfo.Title,sizeof(pDetail->Title));
        else
            strncpy(ProtInfo.Title,pDetail->Title,sizeof(ProtInfo.Title));
        if(stricmp(pDetail->PubDate,"None")==0)
            strncpy(pDetail->PubDate,ProtInfo.PublishDate,sizeof(pDetail->PubDate));
        else
            strncpy(ProtInfo.PublishDate,pDetail->PubDate,sizeof(ProtInfo.PublishDate));
    }

    SetProtectedInfo(&ProtInfo,pDetail,ProdId);

//  GenRsaPrime((DIGIT_T*)ProdId,MOD_SIZE);
//  ProdId[0]= ProdId[0] & RSA_MESSAGE_HIGHBIT_MASK;    // needed for rsa algorithm. 


    memcpy(Key,ProdId,PROD_ID_LEN);

    if(pDetail->TestMode == FALSE)
    {
        RSACTX pubctx,prictx;
        SavedInfo.TestMode = 0;
        GetRsaCtx(&pubctx,(char*)pubcrykey,0);

        RsaCrypt(&pubctx,(char*)ProdId,sizeof(ProdId));
        memcpy(SavedInfo.ProductId,ProdId,PROD_ID_LEN);


    }
    else
    {
        SavedInfo.TestMode = 1;
        memcpy(SavedInfo.ProductId,ProdId,PROD_ID_LEN);
    }

    memset(pDetail->ProdId,0,sizeof(pDetail->ProdId));
    if(pDetail->TestMode == TRUE)
    {
        strcpy(pDetail->ProdId,"None");
    }
    else
    {
        BinToHex((char*)SavedInfo.ProductId,PROD_ID_LEN,pDetail->ProdId);
    }
    strncpy(SavedInfo.Author,pDetail->Author,sizeof(SavedInfo.Author)-1);
    strncpy(SavedInfo.Title,pDetail->Title,sizeof(SavedInfo.Title)-1);
    strncpy(SavedInfo.PublishDate,pDetail->PubDate,sizeof(SavedInfo.PublishDate)-1);
    strncpy(SavedInfo.RegUrl,pDetail->RegUrl,sizeof(SavedInfo.RegUrl)-1);
    if(pDetail->FreeWare == TRUE)   
    {
        SavedInfo.FreeWare = 1;
    }
    else
    {
        SavedInfo.FreeWare = 0;
    }

    if(UseVGCrypt)
    {
        VGInit(&ctx,Key,KEYLEN);
    }

    PIMAGE_SECTION_HEADER pSecHdr = GetLastSection();
    DWORD align=pImage->OptionalHeader.SectionAlignment;

    if(Length < (pSecHdr->PointerToRawData+pSecHdr->SizeOfRawData))
    {
        AfxMessageBox("Actual File Length is less than What is said in Header.\n"
            "The File Might be corrupt.");
        return false;
    }

    if(Length > (pSecHdr->PointerToRawData+pSecHdr->SizeOfRawData))
    {
        DWORD Size = Length - (pSecHdr->PointerToRawData+pSecHdr->SizeOfRawData);
        if(pSecHdr->Misc.VirtualSize < (pSecHdr->SizeOfRawData+Size))
        {
            pSecHdr->Misc.VirtualSize=pSecHdr->SizeOfRawData+Size;
            pSecHdr->Misc.VirtualSize= ((pSecHdr->Misc.VirtualSize / align) * align) + align;
            pImage->OptionalHeader.SizeOfImage=pSecHdr->VirtualAddress+pSecHdr->Misc.VirtualSize;
        }
        pSecHdr->SizeOfRawData += Size;
    }

    pPosition = GetWritePointer();
    if(pPosition == NULL)
        return false;
    dPosition = pSecHdr->VirtualAddress + pSecHdr->SizeOfRawData;

    memcpy((char*)pPosition,asmStub,sizeof(asmStub));
    pPosition = ADDPTR(LPVOID,pPosition,sizeof(asmStub));

    pSize = (PSIZEINFO)pPosition;

    pPosition = ADDPTR(LPVOID,pPosition,sizeof(SIZEINFO));
    dPosition += sizeof(asmStub)+sizeof(SIZEINFO);

    pImportBegin = pPosition;

    IMAGE_DATA_DIRECTORY NullDirectory = { 0,0 };
    SavedInfo.ImportDataDirectory = pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
    SavedInfo.TlsDataDirectory = pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS];
    SavedInfo.BoundImportDirectory = pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT];

    pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS] = NullDirectory;
    pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT] = NullDirectory;

    pImportDesc =(PIMAGE_IMPORT_DESCRIPTOR) pPosition;
    pImportDesc->ForwarderChain = 0;
    pImportDesc->TimeDateStamp = 0;

    dPosition+= sizeof(IMAGE_IMPORT_DESCRIPTOR)*2;
    pImportDesc->Name = dPosition ;

    pPosition = ADDPTR(LPVOID,pPosition,(sizeof(IMAGE_IMPORT_DESCRIPTOR) *2));
    strcpy((char*)pPosition,KERNEL32);
    pPosition = ADDPTR(LPVOID,pPosition,sizeof(KERNEL32));
    dPosition+=sizeof(KERNEL32);

    pImportDesc->FirstThunk = dPosition;
    ThunkPtr = (DWORD*) pPosition;

    pPosition = ADDPTR(LPVOID,pPosition,(NO_OF_FUNCTIONS +1)* sizeof(IMAGE_THUNK_DATA));
    dPosition += ((NO_OF_FUNCTIONS +1)* sizeof(IMAGE_THUNK_DATA));

    for(int i=0;i<NO_OF_FUNCTIONS;i++)
    {
        pImpByName = (PIMAGE_IMPORT_BY_NAME)pPosition;
        pImpByName->Hint=0;
        strcpy((char*)pImpByName->Name,FunctionArray[i]);
        *ThunkPtr = dPosition;
        ThunkPtr++;
        pPosition = ADDPTR(LPVOID,pPosition,(sizeof(WORD) + strlen(FunctionArray[i])+1));
        dPosition += (sizeof(WORD) + strlen(FunctionArray[i])+1);
    }

    *ThunkPtr = 0;
    pImportDesc++;
    memset(pImportDesc,0,sizeof(IMAGE_IMPORT_DESCRIPTOR));

    dImportRva = pSecHdr->VirtualAddress + pSecHdr->SizeOfRawData + SUBPTR(DWORD,pImportBegin,GetWritePointer());

    DWORD ImportSize = SUBPTR(DWORD,pPosition,pImportBegin);
    pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].Size = ImportSize;
    pImage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress = dImportRva;

    SavedInfo.OriginalEntryPoint = pImage->OptionalHeader.AddressOfEntryPoint;

    pImage->OptionalHeader.AddressOfEntryPoint = pSecHdr->VirtualAddress + pSecHdr->SizeOfRawData;

    PIMAGE_SECTION_HEADER pSecHdrTmp;
    pSecHdrTmp = pImage->SectionHeader;
    for(i=0;i<pImage->FileHeader.NumberOfSections;i++)
    {
        pSecHdrTmp->Characteristics = 0xe0000060;
        pSecHdrTmp++;
    }

    DWORD IncreasedSize = SUBPTR(DWORD,pPosition,GetWritePointer());
    DWORD ExtendedMapSize = IncreasedSize;

    pSize->ImportDataSize = ImportSize;
    pSize->UserDataSize = sizeof(USERDATA);
    pSize->DllDataSize = sizeof(rawData);

    IncreasedSize+= pSize->UserDataSize;
    IncreasedSize+= pSize->DllDataSize;

    IncreasedSize+= sizeof(PROTECTEDINFO);


    if(pSecHdr->Misc.VirtualSize < (pSecHdr->SizeOfRawData+IncreasedSize))
    {
        pSecHdr->Misc.VirtualSize=pSecHdr->SizeOfRawData+IncreasedSize;
        pSecHdr->Misc.VirtualSize= ((pSecHdr->Misc.VirtualSize / align) * align) + align;
        pImage->OptionalHeader.SizeOfImage=pSecHdr->VirtualAddress+pSecHdr->Misc.VirtualSize;
    }

    pSecHdr->SizeOfRawData += IncreasedSize;
    PIMAGE_SECTION_HEADER pEncSecHdr = pImage->SectionHeader;

    for(i=0;i<pImage->FileHeader.NumberOfSections;i++)
    {
        if(CanEncryptSection(pEncSecHdr))
        {
            EncryptSection(pEncSecHdr);
            SavedInfo.EncryptedSections = SavedInfo.EncryptedSections | (0x80000000 >> i);
        }
        pEncSecHdr++;
    }

    if(CanEncryptResourceSection())
    {
        EncryptResourceSection();
        SavedInfo.ResourceEncrypted = RESOURCE_IS_INCRYPTED;
    }

//  DWORD temp = MapSize;
//  MapSize = Length + IncreasedSize;
//  SaveCopy("out.exe");

    FILE * f=fopen((LPCTSTR)pDetail->Destination,"wb");
    if(f==NULL)
    {
        CString msg;
        msg.Format("Could not open %s for output",pDetail->Destination);
        AfxMessageBox(msg);
        return false;
    }
    fwrite((char*)pBase,Length+ExtendedMapSize,1,f);

    DWORD Temp = UseVGCrypt = 0;
    memcpy(Key,GlobalKey,KEYLEN);
    EncryptData(&SavedInfo,sizeof(USERDATA));
    UseVGCrypt = Temp;

    fwrite((char*)&SavedInfo,sizeof(USERDATA),1,f);
    unsigned char * rd = new unsigned char[sizeof(rawData)];
    memcpy(rd,rawData,sizeof(rawData));
    CryptRawData(rd,sizeof(rawData));
    fwrite(rd,sizeof(rawData),1,f);
    delete rd;

    fwrite(&ProtInfo,sizeof(ProtInfo),1,f);

    fclose(f);

    return true;

}   

Answer 1

_CRT_SECURE_NO_WARNINGS 只是 - 警告 - 您的代码仍会编译(并且不会比在 VC++6 中编译时的安全性低)。您遇到的唯一错误(来自您的输出)采用以下形式:

 Pewrap.cpp(551): error C2065: 'i': undeclared identifier

我将假设“i”是一个 for 循环索引变量，并且您的 VC++6 项目使用了 Microsoft Language Extensions，因此循环变量声明在循环后仍然存在。我还猜测在您的 VS2015 项目中，禁用语言扩展/Za(属性页->C/C++->语言)处于打开状态，因此，使用“i”的第一个循环起作用，其余的给出错误。要么不要禁用语言扩展，要么在您使用它的每个循环(或更高范围)中声明“i”。

正确声明“i”是最可移植的方法，因为它不依赖于任何语言扩展。例如。你有这个:

for(int i=0;i<NO_OF_FUNCTIONS;i++)
...
for(i=0;i<pImage->FileHeader.NumberOfSections;i++)
...

将“i”的第一个用法简单地更改为:

int i;
for(i=0;i<NO_OF_FUNCTIONS;i++)