O coding dos readabsolutesectors das funções () e os writeabsolutesectors () têm sido dados em seguida:
//// Função para ler setores absolutos \\\\
int readabsolutesectors ( int drive,
unsigned long sectornumber,
int numofsectors,
void *buffer )
{
union REGS i, o ;
struct SREGS s ;
struct diskaddrpacket pp ;
pp.packetsize = 16 ; /* packet size = 10H */
pp.reserved = 0 ; /* Reserved = 0 */
pp.blockcount = numofsectors ; /* Número dos setores a ler */
/* para o amortecedor dos dados */
pp.bufferaddress = (char far*) MK_FP ( FP_SEG((void
far*)buffer), FP_OFF((void far*)buffer));
pp.blocknumber[0] = sectornumber ; /* Número do setor a ler */
pp.blocknumber[1] = 0 ; /* Número de bloco */
i.h.ah = 0x42 ; /* Número da função*/
i.h.dl = drive ; /* Número de movimentação físico */
i.x.si = FP_OFF ( (void far*)&pp ) ; /* ds:si for
buffer Parameters */
s.ds = FP_SEG ( (void far*)&pp ) ; /* ds:si for
buffer Parameters */
/* Invoke que a função especificada de 13H INTERNO com registo do segmento avalia*/
int86x ( 0x13, &i, &o, &s ) ;
if ( o.x.cflag==1)
return 0 ; /*failure */
else
return 1 ; /* success */
}
Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi, translated using machine translation. See original English contents on Data recovery book pages. |
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Publishers of the Book
Number of Pages
ISBN
Price of the Book
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BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)
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