驱动控制码计算小工具

loadwuai

学习驱动时，需要计算控制码，简单的写了一个，给需要的人。


代码：

[C] 纯文本查看 复制代码

#include "stdafx.h"
#include <iostream>
#include <stdio.h>
using namespace std;

#define FILE_DEVICE_UNKNOWN             0x00000022
#define METHOD_BUFFERED                 0
#define FILE_ANY_ACCESS                 0
#define FILE_READ_ACCESS          ( 0x0001 )    // file & pipe
#define FILE_WRITE_ACCESS         ( 0x0002 )    // file & pipe
#define CTL_CODE( DeviceType, Function, Method, Access ) (                 \
        ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) \
        )
int _tmain(int argc, _TCHAR* argv[])
{
        int nCalacCode;
        int nFILE_READ_WRITE_ACCESS;
        cout << "请输入需要计算的权限：\r\n0=FILE_ANY_ACCESS \r\n非0=FILE_READ_ACCESS + FILE_WRITE_ACCESS\r\n";
        cin >> hex >> nCalacCode;
        if (nCalacCode == 0)
        {
                nFILE_READ_WRITE_ACCESS = FILE_ANY_ACCESS;
        }
        else
        {
                nFILE_READ_WRITE_ACCESS = FILE_READ_ACCESS + FILE_WRITE_ACCESS;
        }
        cout << "请输入计数控制码：";
        while (cin >> hex >> nCalacCode)
        {
                if (nCalacCode == 'q' || nCalacCode == 'Q')
                {
                        break;
                }
                int nCtlCode = CTL_CODE(FILE_DEVICE_UNKNOWN, nCalacCode, METHOD_BUFFERED, nFILE_READ_WRITE_ACCESS);
                printf("控制码:%08X\r\n", nCtlCode);
                cout << "请输入计数控制码：";
        }
        return 0;
}

Driver_Manager_IOCTL_CODE_Calac.zip (305.22 KB, 下载次数: 55)

2019-2-19 19:55 上传

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