VC 获取MBR引导分区数据

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// ParseMbr.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include <Windows.h>#include <stdio.h>#define BOOTRECORDSIZE 440typedef struct _BOOTRECORD{    unsigned char BootRecord[BOOTRECORDSIZE];}BOOTRECORD, *PBOOTRECORD;#define DPTSIZE 64typedef struct _DPT{    unsigned char Dpt[DPTSIZE];}DPT, *PDPT;#define DPTNUMBER 4typedef struct _DP{    unsigned char BootSign;         // 引导标志    unsigned char StartHsc[3];    unsigned char PartitionType;    // 分区类型    unsigned char EndHsc[3];    ULONG         SectorsPreceding;     // 本分区之前使用的扇区数    ULONG         SectorsInPartition;   // 分区的总扇区数}DP, *PDP;typedef struct _MBR{    BOOTRECORD BootRecord;                  // 引导程序    unsigned char ulSigned[4];              // Windows磁盘签名    unsigned char sReserve[2];              // 保留位    DPT        Dpt;                         // 分区表    unsigned char EndSign[2];               // 结束标志}MBR, *PMBR;// 显示MBR数据VOID ShowMbr(HANDLE hDevice, PMBR pMbr){        DWORD dwRead = 0;    ReadFile(hDevice, (LPVOID)pMbr, sizeof(MBR), &dwRead, NULL);        for ( int i = 0; i < 512; i ++ )    {        printf("%02X ", ((BYTE *)pMbr)[i]);        if ( ( i + 1 ) % 16 == 0 )        {            printf("\r\n");        }    }}// 解析MBRVOID ParseMbr(MBR Mbr){    printf("引导记录: \r\n");int i=0;    for ( int i = 0; i < BOOTRECORDSIZE; i ++ )    {        printf("%02X ", Mbr.BootRecord.BootRecord[i]);        if ( ( i + 1 ) % 16 == 0 )        {            printf("\r\n");        }    }    printf("\r\n");    printf("磁盘签名: \r\n");    for ( i = 0; i < 4; i ++ )    {        printf("%02X ", Mbr.ulSigned[i]);    }    printf("\r\n");        printf("解析分区表: \r\n");    for ( i = 0; i < DPTSIZE; i ++ )    {        printf("%02X ", Mbr.Dpt.Dpt[i]);        if ( ( i + 1 ) % 16 == 0 )        {            printf("\r\n");        }    }    printf("\r\n");    PDP pDp = (PDP)&(Mbr.Dpt.Dpt);    for ( i = 0; i < DPTNUMBER; i ++ )    {        printf("引导标志: %02X ", pDp[i].BootSign);        printf("分区类型: %02X", pDp[i].PartitionType);        printf("\r\n");        printf("本分区之前扇区数: %d ", pDp[i].SectorsInPartition);        printf("本分区的总扇区数: %d", pDp[i].SectorsInPartition);        printf("\r\n");                printf("该分区的大小: %f \r\n", (double)pDp[i].SectorsInPartition / 1024 * 512 / 1024 / 1024 );        printf("\r\n \r\n");    }    printf("结束标志: \r\n");    for ( i = 0; i < 2; i ++ )    {        printf("%02X ", Mbr.EndSign[i]);    }    printf("\r\n");}int main(int argc, char* argv[]){    // 打开物理硬盘设备,通过读取PhysicalDrive0设备文件获取MBR引导分区数据    HANDLE hDevice = CreateFile("\\\\.\\PhysicalDrive0",                    GENERIC_READ,                    FILE_SHARE_READ | FILE_SHARE_WRITE,                    NULL,                    OPEN_EXISTING,                    0,                    NULL);    if ( hDevice == INVALID_HANDLE_VALUE )    {        printf("CreateFile Error %d \r\n", GetLastError());        return -1;    }    MBR Mbr = { 0 };    ShowMbr(hDevice, &Mbr);    ParseMbr(Mbr);    CloseHandle(hDevice);getchar();return 0;}
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