Program to read and write absolute disk sectors

(these will work with all versions of DOS 2-7).

#include 
#include 
#include "snpdskio.h"

int CDECL absdisk(unsigned char  function,
                unsigned short drive,              /* 0 = A:, etc.   */
                size_t         number_of_sectors,
                size_t         starting_sector,
                void *         sector_buffer);

int AbsDiskRead(unsigned short drive,
             size_t         num_of_sectors,
             size_t         sector,
             void          *ptr)
{
   return absdisk(0x25, drive, num_of_sectors, (unsigned)sector, ptr);
}

int AbsDiskWrite(unsigned short drive,
             size_t         num_of_sectors,
             size_t         sector,
             void *ptr)
{
   return absdisk(0x26, drive, num_of_sectors, (unsigned)sector, ptr);
}

CODE FOR SNPDSKIO.H

#ifndef SNPDKSIO__H
#define SNPDKSIO__H

#include 
#include 
#include "extkword.h"

/*
**  File: ABSDISKC.C and ABSDISK.ASM
*/

int CDECL absdisk(unsigned char  function,
                 unsigned short drive,               /* 0 = A:, etc.   */
                 size_t         number_of_sectors,
                 size_t         starting_sector,
                 void *         sector_buffer);

int AbsDiskRead(unsigned short drive,
               size_t         num_of_sectors,
               size_t         sector,
               void          *ptr);

int AbsDiskWrite(unsigned short drive,
               size_t         num_of_sectors,
               size_t         sector,
               void *ptr);

/*
**  File: HUGEREAD.C
*/

long hugeread(int fh, unsigned char FAR *buf, long size);
long hugewrite(int fh, unsigned char FAR *buf, long size);
long hugefread(FILE *fp, char FAR *buf, long size);
long hugefwrite(FILE *fp, char FAR *buf, long size);


#endif /* SNPDKSIO__H */

IMP : Save This Second File In your include folder...