MakeSureDirectoryPathExists improvement

[Alexandre Julliard]

Wolfgang Schwotzer <wolfgang.schwotzer at gmx.net> writes:

> @@ -91,13 +91,28 @@
>   */
>  BOOL WINAPI MakeSureDirectoryPathExists(LPCSTR DirPath)
>  {
> -    if (CreateDirectoryA(DirPath, NULL)) return TRUE;
> -    if (GetLastError() == ERROR_ALREADY_EXISTS)
> +    char path[MAX_PATH];
> +    const char *p = DirPath;
> +    int  n;
> +
> +    if (strchr(p, ':') != NULL)
> +       p = strchr(p, ':');
> +    while ((p = strchr(p, '\\')) != NULL)
>      {
> -        SetLastError(ERROR_SUCCESS);
> -        return TRUE;
> +       n = p - DirPath + 1;
> +       strncpy(path, DirPath, n); 
> +       path[n] = '\0';
> +       if( !CreateDirectoryA(path, NULL)            &&
> +           (GetLastError() != ERROR_ACCESS_DENIED)  &&
> +           (GetLastError() != ERROR_ALREADY_EXISTS))
> +           return FALSE;
> +       p++;
>      }
> -    return FALSE;
> +    if (GetLastError() == ERROR_ACCESS_DENIED ||
> +       (GetLastError() == ERROR_ALREADY_EXISTS))
> +       SetLastError(ERROR_SUCCESS);
> +
> +    return TRUE;

I don't think you want to simply ignore ERROR_ACCESS_DENIED. You
should fix your algorithm to not try to create the drive root and then
ignore only ERROR_ALREADY_EXISTS.

-- 
Alexandre Julliard
julliard at winehq.org