c the bin binary file written to disk any sector (reference)

Original https://blog.csdn.net/c5113620/article/details/84061600

 

// compile 
nasm -f bin boot.asm - O boot.bin
 // then compiled [c] administrator privileges to run following 
behind PHYSICALDRIVE3 number that represents the disk number, you can look right - this computer (My Computer ) - management - disk management, wrote the following, disk 0, disk 1

 

/ * Read asm compiled bin byte file, write to load the vhd disk sectors 
** need administrator privileges to run 
* / 

#include <the Windows.h> 
#include <stdio.h> // store the contents of the sector 
unsigned char Container [ 512 ]; // parameters: string pointer output, starting position, length
 // return value: the size of the read DWORD ReadDisk (DWORD start, DWORD size) 
{ 
    the OVERLAPPED over = { 0 }; 
    over.Offset = Start; 
    hANDLE handle = CreateFile (TEXT ( " . \\ PHYSICALDRIVE3 \\\\ " ), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0




, NULL); 
    DWORD Error = ERROR_SUCCESS;
     IF (handle == INVALID_HANDLE_VALUE) 
    { 
        Error = the GetLastError ();
         // . 5 refused access, without permission 
        the wprintf (L " ReadDisk error code with a SECTOR failed% D \ n- " , Error) ;
         return  0 ; 
    } 
    
    DWORD value of readsize; 
    IF (the ReadFile (handle, Container, size, & value of readsize, & over) == 0 ) 
    { 
        the CloseHandle (handle); 
        return  0 ; 
    } 

    // Note that the memory required to release their own
    CloseHandle(handle);
    return readsize;
}

DWORD WriteDisk( DWORD start, DWORD size)
{
    OVERLAPPED over = { 0 };
    over.Offset = start;
    HANDLE handle = CreateFile(TEXT("\\\\.\\PHYSICALDRIVE3"), GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
    DWORD  Error = ERROR_SUCCESS;
    if (handle == INVALID_HANDLE_VALUE)
    {
        Error = GetLastError();
        wprintf(L"WriteDisk sector failed with error code %d\n", Error);
        return 0;
    }
    DWORD writesize;
    if (WriteFile(handle, container, size, &writesize, &over) == 0)
    {
        CloseHandle(handle);
        return 0;
    }
    
    CloseHandle(handle);
    return writesize;
}

void readBin(DWORD start, DWORD size)
{
    OVERLAPPED over = { 0 };
    over.Offset = start;
    HANDLE handle = CreateFile(TEXT("\\\\.\\D:\\print.bin"), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
    DWORD  Error = ERROR_SUCCESS;
    if (handle == INVALID_HANDLE_VALUE)
    {
        Error = GetLastError();
        wprintf(L"readBin failed with error code %d\n", Error);
        return ;
    }
    DWORD readsize;
    if (ReadFile(handle, container, size, &readsize, &over) == 0)
    {
        CloseHandle(handle);
        return ;
    }
}

void printContainer()
{
    for (unsigned int i = 0; i < 512; i++) {
        printf("%02X ", container[i]);
    }
    printf("\n");
}

int main()
{
    DWORD len;

    len = ReadDisk(0, 512);
    printf("len:%d\n", len);
    printContainer();

    //读取bin字节
    readBin(0, 512 ); 
    the printf ( " bin: \ n- " ); 
    printContainer (); 

    getchar (); 

    len = WriteDisk ( 0 , 512 );
     // write the number of bytes 
    the printf ( " len:% D \ n- " , len) ; 
    
    getchar (); 

    return  0 ; 

}