遍历文件夹/创建目录

最新推荐文章于 2022-12-06 11:08:46 发布

SWenJing

最新推荐文章于 2022-12-06 11:08:46 发布

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分类专栏： Windows编程文章标签： path file null character exception string

本文链接：https://blog.youkuaiyun.com/SWenJing/article/details/5319521

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本文介绍了一个用于递归搜索指定目录及其所有子目录的C/C++函数，并展示了如何创建目录路径的方法。该函数能够遍历文件系统并收集所有文件的信息，同时排除特定的目录。此外，还提供了一段代码实现创建目录的功能，包括处理UNC路径。

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SearchSubdir(LPCSTR lpszFolderPath)
{
char strname[MAX_PATH] = ""; //file name
char strsearch[MAX_PATH] = ""; //search name
char strdir[MAX_PATH] = ""; //dir path
char strfile[MAX_PATH] = ""; //file path

if (GetFileAttributesA(lpszFolderPath) & FILE_ATTRIBUTE_DIRECTORY)
{
        strcpy(strsearch, lpszFolderPath);
        HANDLE hFile;
  WIN32_FIND_DATAA wfd;
  strcat(strsearch, "//*.*");

  hFile = FindFirstFileA(strsearch, &wfd);
  if (INVALID_HANDLE_VALUE == hFile)
   return;
        do
        {
   if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
   {
    sprintf(strname, wfd.cFileName);
    //排除掉两个文件夹
    if(lstrcmpA(wfd.cFileName, ".") == 0 || lstrcmpA(wfd.cFileName,"..") == 0)
     continue;

    strcpy(strdir, lpszFolderPath);
    strcat(strdir, "//");
    strcat(strdir, strname);
    SearchSubdir(strdir);
   }
   else
   {
    memset(strfile, NULL, MAX_PATH);
    strcat(strfile, lpszFolderPath);
    strcat(strfile, "//");
    strcat(strfile, wfd.cFileName);

    SetFileAttributesA(strfile, FILE_ATTRIBUTE_NORMAL);
    m_pClientInfo->fileInfo.fileList.push_back(strfile);
   }

        } while (FindNextFileA(hFile, &wfd));
}
}

CreateDirectory(IN LPCTSTR lpszDirName)
{
LPTSTR p, pszDirCopy;
DWORD dwAttributes;

// Make a copy of the string for editing.

    __try
    {
        pszDirCopy = (LPTSTR)malloc(sizeof(TCHAR) * (lstrlen(lpszDirName) + 1));

if(pszDirCopy == NULL)
return FALSE;

lstrcpy(pszDirCopy, lpszDirName);

p = pszDirCopy;

// If the second character in the path is "/", then this is a UNC
// path, and we should skip forward until we reach the 2nd / in the path.

        if((*p == TEXT('//')) && (*(p+1) == TEXT('//')))
        {
            p++;            // Skip over the first / in the name.
            p++;            // Skip over the second / in the name.

// Skip until we hit the first "/" (//Server/).

            while(*p && *p != TEXT('//'))
            {
                p = CharNext(p);
            }

// Advance over it.

            if(*p)
            {
                p++;
            }

// Skip until we hit the second "/" (//Server/Share/).

            while(*p && *p != TEXT('//'))
            {
                p = CharNext(p);
            }

// Advance over it also.

            if(*p)
            {
                p++;
            }

        }
        else if(*(p+1) == TEXT(':')) // Not a UNC. See if it's <drive>:
        {
            p++;
            p++;

// If it exists, skip over the root specifier

            if(*p && (*p == TEXT('//')))
            {
                p++;
            }
        }

  while(*p)
        {
            if(*p == TEXT('//'))
            {
                *p = TEXT('/0');
                dwAttributes = GetFileAttributes(pszDirCopy);

                // Nothing exists with this name. Try to make the directory name and error if unable to.
                if(dwAttributes == 0xffffffff)
                {
                    if(!::CreateDirectory(pszDirCopy, NULL))
                    {
                        if(GetLastError() != ERROR_ALREADY_EXISTS)
                        {
                            free(pszDirCopy);
                            return FALSE;
                        }
                    }
                }
                else
                {
                    if((dwAttributes & FILE_ATTRIBUTE_DIRECTORY) != FILE_ATTRIBUTE_DIRECTORY)
                    {
                        // Something exists with this name, but it's not a directory... Error
                        free(pszDirCopy);
                        return FALSE;
                    }
                }

                *p = TEXT('//');
            }

p = CharNext(p);
}

  dwAttributes = GetFileAttributes(pszDirCopy);
  if(dwAttributes == 0xffffffff)
  {
   if(!::CreateDirectory(pszDirCopy, NULL))
   {
    if(GetLastError() != ERROR_ALREADY_EXISTS)
    {
     free(pszDirCopy);
     return FALSE;
    }
   }
        }

    }
    __except(EXCEPTION_EXECUTE_HANDLER)
    {
        // SetLastError(GetExceptionCode());
        free(pszDirCopy);
        return FALSE;
    }

free(pszDirCopy);
return TRUE;
}