Question

由于某些原因，我可以将我的.dll加载到我的应用程序中，但是当我调用resolve函数时，它一直说无法加载函数。

typedef void (*SetKey_func)(const char *, const char *, const char *, const char *);

Crypt::Crypt(QObject *parent) : QObject(parent)
{
}

Crypt::~Crypt()
{

}

void Crypt::LoadCrypt()
    {

        QString file = QCoreApplication::applicationDirPath() + "/RockBase.dll";

        library.setFileName(file);
        library.load();

        if( !library.isLoaded() )
        {
            //file not loaded
            return;
        }
        else
        {
            // file loaded
        }
    }

然后我的函数decsetkey只是在.dll

中设置了键

void Crypt::DecSetKey()
{

    quint8 decKey1[] = { 0x7D, 0x44, 0x01, 0x00, 0x83, 0xEC, 0x24, 0x83, 0x25, 0xB8, 0x8C, 0x4A, 0x0D, 0x56, 0x8B, 0x75 };
    quint8 decKey2[] = { 0x1C, 0x8D, 0x1C, 0x57, 0x50, 0xCE, 0xE8, 0x6F, 0x85, 0xFE, 0xFF, 0x8B };
    quint8 decKey3[] = { 0x76, 0x0C, 0x50, 0x45, 0x14, 0x83, 0x65, 0xFC, 0x56, 0x50, 0x7D, 0xD1, 0x74, 0x03, 0xB8, 0x43 };
    quint8 decKey4[] = { 0x8B, 0x47, 0xDD, 0x6A, 0xE8, 0x14, 0x83, 0xC4, 0xBC, 0xF3, 0x7F, 0x75 };

    SetKey_func s_d_func = (SetKey_func)library.resolve( "?SetKey@CCrypto@RockBase@@QAEXPBD000@Z" );
    if( s_d_func )
    {
        //"Successful loading of Decrypt CCrypto::SetKey function."));
        s_d_func( 0, (const char*)decKey1, 0, 0 );
        s_d_func((const char*)decKey2, 0, 0, 0);
        s_d_func(0, (const char*)decKey3, 0, 0);
        s_d_func((const char*)decKey4, 0, 0, 0);
    }
    else
    {
        //Unable to load Decrypt CCrypto::SetKey function."));
    }
}

我在另一个类中调用函数

void patch::readdata()
{
        Crypt *cryptinstance = new Crypt(this);
        cryptinstance->DecSetKey();
}

我认为指针在我使用后被摧毁了。任何帮助都会对你的时间有所帮助。

Answer 1

从命令行执行dumpbin /exports RockBaseML.dll。您将看到代码尝试搜索时没有?SetKey@CCrypto@RockBase@@QAEXPBD000@Z这样的导出函数。我找到的最接近的是这套：

C:\Users\jselbie\Downloads>dumpbin /exports RockBaseML.dll | findstr /i SetKey
    116   73 00004DCF ?SetKey@CAesCrypto@RockBase@@UAEXPBD@Z
    117   74 00004F3D ?SetKey@CDesCrypto@RockBase@@UAEXPBD@Z
    118   75 00005051 ?SetKey@CRcCrypto@RockBase@@UAEXPBD@Z
    119   76 0000525E ?SetKey@CRockCrypto@RockBase@@QAEXPBD000@Z
    120   77 000054F2 ?SetKey@CStrmCrypto@RockBase@@UAEXPBD@Z

QT加载.dll没有调用resolve

1 个答案: