Recover data from floppy disk reading file information root directory

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do
{
file_no=0;

finfo.drive = 0x00; /* drive number for A: */
finfo.head = head; /* disk head number */
finfo.track = track; /* track number */
finfo.sector= sector; /* sector number */
finfo.nsectors=1; /* sector count */
finfo.buffer = buf; /* data buffer */

result = _bios_disk(_DISK_READ, &finfo); /* Read the
Sector */

if( (result & 0xff00) != 0) /* If Read Error, Display Error Message and Exit*/
{
printf("Read error");
getch();
exit(0); // Go Back to DOS
}

/// Information Display Screen Format \\\

clrscr();
gotoxy(9,1);
cprintf("DISPLAY CYLN: %u, HEAD: %u, SECTOR: %u", track, head, sector);
gotoxy(9,2);
cprintf("FNO NAME EXT ATTRIBUTE START SIZE");
gotoxy(7,3);
cprintf("--------------------------------------------");

/* One Sector At a time. Every File/DIR entry Takes 32 Byte */

for(i=0;i<512;i+=32)
{
for(j=0;j<8;j++)
{

/// Find The File/Dir Name \\\

root[file_no].name[j]=buf[j+i];
}

for(j=8;j<11;j++)
{

/// Find the Extension \\\

root[file_no].ext[j-8]=buf[i+j];
}

j=11;
root[file_no].attribute=buf[i+j]; /// Attribute

/// Starting Cluster \\\

root[file_no].start=(0xff & buf[27+i])*16*16 + (0xff & buf[26+i]);

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Data Recovery Book
 
Chapter 1 An Overview of Data Recovery
Chapter 2 Introduction of Hard Disks
Chapter 3 Logical Approach to Disks and OS
Chapter 4 Number Systems
Chapter 5 Introduction of C Programming
Chapter 6 Introduction to Computer Basics
Chapter 7 Necessary DOS Commands
Chapter 8 Disk-BIOS Functions and Interrupts Handling With C
Chapter 9 Handling Large Hard Disks
Chapter 10 Data Recovery From Corrupted Floppy
Chapter 11 Making Backups
Chapter 12 Reading and Modifying MBR with Programming
Chapter 13 Reading and Modifying DBR with Programming
Chapter 14 Programming for “Raw File” Recovery
Chapter 15 Programming for Data Wipers
Chapter 16 Developing more Utilities for Disks
Appendix Glossary of Data Recovery Terms
 
 
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