Buffer overrun detected!是什么原因？
我的程序执行到最后时，提示 Buffer overrun detected!，然后就报错退出了

A buffer overrun has been detected which has corrupted the program 's internal state．The program cannot safely continue execution and must now be terminated．

请问应该怎么解决该问题啊！以下是我执行的程序：

void CShareazaApp::GetUpdateFlag(void)
{
CString strHttpName=_T( "http://www.qyjz.net/AutoUpdate.asp?action=Auto "); // 需要提交数据的页面
CString uFlag = _T( "UpdateFlag ");
CString strFormData = uFlag;// 需要提交的数据

CInternetSession sess;
CHttpFile* fileGet;
CString strHeaders = _T( "Content-Type: application/x-www-form-urlencoded "); // 请求头

try
{
fileGet=(CHttpFile*)sess.OpenURL(strHttpName);//打开文件
}
catch(CException* e)
{
fileGet = 0;

//网络状况不稳定
return;
//throw;
}

CString strSentence, strGetSentence;
if(fileGet)
{
DWORD dwStatus;
DWORD dwBuffLen = sizeof(dwStatus);
BOOL bSuccess = fileGet-> QueryInfo(HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, &dwStatus, &dwBuffLen);
if( bSuccess && dwStatus> = 200 &&dwStatus <300 )
{
//写入用户的Cookie信息
BOOL result = fileGet-> SendRequest(strHeaders, (LPVOID)(LPCTSTR)strFormData, strFormData.GetLength());
//////////////////////////////////////////////////////////////////////////////////////////////////////
while(fileGet-> ReadString(strSentence)) // 读取提交数据后的返回结果
{
strGetSentence = strGetSentence + strSentence;
int nLen = strGetSentence.GetLength();

//***************************************
char sBuffer[50]= {0};
sprintf(sBuffer, "%s ",strGetSentence);

char string[10] = {0};
char string1[10] = {0};
strncpy(string1,sBuffer,7);

char *ptr;
ptr = strpbrk(string1, "s ");

if(!ptr)
{
strncpy(string,sBuffer,6);
sprintf(string1, "%s ",string);
}

char string2[10] = {0};
char szStr[10] = { "#True# "};
strncpy(string2,szStr,6);

int result;
result = strcmp( string1, string2 );
if( result == 0 )
{
//版本号为TRUE，强制用户升级程序
AfxMessageBox(L "用户必须要升级客户端程序,否则不能运行主程序 ");

break;
}
else if( result < 0 )
{
AfxMessageBox(L "没有找到升级标识符 ");

//版本号为FLASE，直接退出程序
break;
}
}
//AfxMessageBox(strGetSentence); // 显示返回网页内容
}
else
{
strSentence.Format(L "POST出错，错误码：%d ", dwStatus);
//AfxMessageBox(strSentence);

//无法打开网页，错误代码：404
if(dwStatus == 404)
{
fileGet-> Close();
delete fileGet;

sess.Close();

//如果用户没有上网或网络状态有问题，则直接退出检测，运行客户端下载程序
::ShellExecute(NULL,L "open ",L "QyjzPlayer.exe ",NULL,NULL,SW_SHOWNORMAL);
ExitProcess(0);
}
}

if( !fileGet )
{
fileGet-> Close();
delete fileGet;
}
}
else
{
AfxMessageBox(L "不能找到网页文件！ ");
}

if( !sess)
sess.Close();
}




[解决办法]
strncpy好像在某些情况下不会自动在字符串后便插入0.
再检查一下你的sprintf，是不是定义的缓冲区不够大。