在硬盘上查找文件占用的扇区 [英] find files occupied sectors on hard disk

问题描述

我正在使用Win32 API编写一个项目，我需要在硬盘上查找文件占用的扇区，然后在这些扇区上进行写.
例如:
我有一个文件(test.txt)，我想查找该文件被占用了哪些扇区?

I am writing a project using win32 API and i need to find files occupied sectors on hard disk, and then write on these sectors.
for example:
I have one file (test.txt) and i want to find which sectors this file has been occupied?


does anybody know how can i do this?

推荐答案

我假设您正在尝试编写安全的删除应用程序吗?
那并不像你想的那么容易...

Google是您的朋友:

I assume you are trying to write a secure delete application?
That is not as easy as you think...

Google is your friend here: Secure delete c++[^] - but be prepared for some work, it is not at all easy. Just think about SSDs - they don''t write where they tell you they are, just mark the old blocks as "available for reuse" at a later date.

据我所知，则无法通过win32 API写入磁盘上的特定扇区.您需要使用低级内核API编写驱动程序.

As far as I know, it is impossible to write to a specific sector on disk through win32 API. You need to write a driver using low-level kernel API.

另一个资源是 SysInternals实用程序.有一些有趣的文件系统实用程序及其源代码.

Another resource is the SysInternals utilities. There are some interesting file system utilities with source code there.

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