关于文件遍力查找的问题

Question

以下代码那里有问题，为什么一运行立即报内存错误bool IsRoot(char *tempdir)
{
char szroot[4];
::wsprintf(szroot,"%c:\\\0",tempdir[0]);
return(::lstrcmp(szroot,tempdir)==0); 

}
void seek(char *tempdir)
{
char dirpath[MAX_PATH];
::lstrcpy(dirpath,tempdir);
::lstrcat(dirpath,"\\");
::lstrcat(dirpath,"*.*"); 
HANDLE find;
WIN32_FIND_DATA findinfo;
find=::FindFirstFile(dirpath,&findinfo);
if(find==INVALID_HANDLE_VALUE)
return;
do
{
if(findinfo.cFileName=="."||findinfo.cFileName=="..")
continue;
char dirfile[MAX_PATH];
::lstrcpy(dirfile,tempdir);
if (!IsRoot(dirfile)) ::lstrcat(dirfile,"\\"); 
::lstrcat(dirfile,findinfo.cFileName);
if((GetFileAttributes(dirfile) & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)
{
seek(dirfile);
}
else
if(findinfo.cFileName=="1.txt")
::AfxMessageBox(dirfile);

}while(::FindNextFile(find,&findinfo));
::CloseHandle(find); 
}
void CSeek1Dlg::OnOK() 
{
seek("D:");
//CDialog::OnOK();
}

Answer 1

Debug后哪里出错，自己检查呀。

Answer 2

try
::SetCurrentDirectory( dirfile );
seek( dirfile );
::SetCurrentDirectory( _T".." );

Answer 3

http://www.csdn.net/cnshare/soft/10/10117.shtm

Answer 4

if((strncmp(findinfo.cFileName,".",1)==0)||
  (strncmp(findinfo.cFileName,"..",2)==0))
{
   continue;
}

Answer 5

void FindFile(CString &strTemp)
{
    WIN32_FIND_DATA fd;
    //::SetCurrentDirectory(strTemp);    HANDLE hFind = ::FindFirstFile("*.*", &fd);
    if(hFind != INVALID_HANDLE_VALUE)
    {
        do
        {
            if(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
            {
                CString name = fd.cFileName;
                if(name != _T(".") && name != _T(".."))
                {
                    strTemp += _T("\\") + name;
                    ::SetCurrentDirectory(strTemp);
                    FindFile(strTemp);
                    ::SetCurrentDirectory(_T(".."));
                    TCHAR szCurDir[MAX_PATH];
                    ::GetCurrentDirectory(sizeof(szCurDir) / sizeof (TCHAR), szCurDir);
                    strTemp = szCurDir;
                }
            }
            else
            {
                CString strExt = GetExt(fd.cFileName);
                if(m_lExt.Find(strExt))
                    AddToListCtrl(strTemp + _T("\\") + fd.cFileName, strExt);
            }        }while(::FindNextFile(hFind, &fd));        ::FindClose(hFind);
    }
}