C++采用ring3读取MBR实例_C/C++

C++采用ring3读取MBR实例

2021-02-06 13:01C++教程网 C/C++

这篇文章主要介绍了C++采用ring3读取MBR实例,可实现对硬盘的主引导记录的读取,非常具有实用价值,需要的朋友可以参考下

本文实例讲述了C++采用ring3读取MBR的方法，分享给大家供大家参考。具体实现方法如下：

复制代码代码如下:

	DWORD dwBytesReturned = 0; 

	    BYTE bytBuffer_1[512]; 

	    BYTE bytBuffer_2[512]; 

	    CHAR string[2048]; 

	    HANDLE hDevice, hDriver; 

	    BOOL bRet; 

	    hDevice = CreateFile("\\\\.\\PhysicalDrive0", GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); 

	    if(hDevice == INVALID_HANDLE_VALUE) 

	    { 

	        printf("\nFailed - CreateFile - Open the PhysicalDrive0.\n"); 

	        return 0; 

	    } 

	    bRet = ReadFile(hDevice, (LPVOID)bytBuffer_1, 512, &dwBytesReturned, NULL); 

	    if(bRet == FALSE) 

	    { 

	        printf("\nFailed - ReadFile - the first one.\n"); 

	        return 0; 

	    } 

	    printf("aaaa"); 

	    Sleep(1000*3); 

	    printf("\nRead MBR using the ReadFile function...\n"); 

	    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 

	    sprintf(string, "\n"); 

	    for(DWORD i = 0; i < 512; i++) 

	    { 

	        sprintf(string, "%s %02X", string, bytBuffer_1[i]); 

	        if(((i + 1) % 16) == 0) 

	            sprintf(string, "%s\n", string); 

	        if(((i + 1) % 16) == 8) 

	            sprintf(string, "%s -", string); 

	    } 

	    printf("%s", string); 

	    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -");