Het volgende programma is geschreven om de informatie van schijfparameters in DBR van 1.44Mb te herschrijven, 3½ duim floppy disk, met 80 sporen, 2 hoofden (kanten) en 18 sectoren per spoor.
/* Programma om de parameters van 1.44MB, 3½ duim floppy disk aan zijn DBR te herschrijven */
# include "dos.h"
# include "stdio.h"
struct boot
{
unsigned char code[3] ; /* Jump Code */
unsigned char system_id[8] ; /* OEM ID and Version*/
int bytes_per_sec ; /* Bytes Per Sector */
char sec_per_clus ; /* Number of Sectors
Per Cluster */
int res_sec ; /* Reserved Sectors */
char fat_copies ; /* Number of FATs */
int root_dir_entry ; /* Number of Root
Directory Entries */
unsigned int no_sects ; /* Number of Total
Sectors */
unsigned char format_id ; /* Media Descriptor
Byte */
int sec_per_fat ; /* Sectors Per FAT */
int sec_per_trk ; /* Sectors Per FAT */
int no_sides ; /* Number of
Sides(Heads) */
int no_sp_res_sect ; /* Number of Hidden
Sectors */
unsigned char rest_code[482] ;/* Rest 482 Bytes code
of DBR */
} ;
struct boot b ;
main( )
{
int val ;
val = absread(0, 1, 0, &b); /* Use For Floppy Disk */
if ( val == -1 )
{
printf ( "\n Disk read Error...bad sector\n" ) ;
exit ( 1 ) ;
}
clrscr ( ) ;
display_info();
getch();
printf("\n Now Recovering BDR of Floppy.....\n");
Recover_with_values();
printf ( "\n Disk Recovered Successfully." ) ;
display_info();
return 0;
}
|
