www.pudn.com > 152.rar > 152.C

#include 
#include 
#include 
int main(void) 
{ 
	int result; 
        char a='N'; 
	char buffer[512]; 
	clrscr(); 
	printf(" This is a hard disk lock program.\n"); 
        printf(" Do you want to lock your hard disk? (Y/N): "); 
        scanf("%c",&a); 
        if (a == 'Y'||a=='y') 
        { 
	  result = biosdisk(2,0x80,0,0,1,1,buffer); 
          if(result) 
	  { 
		buffer[510] = 0x0; 
		buffer[511] = 0x0; 
		printf(" Fail to read main boot sector!\n"); 
          } 
	  if(!result) result = biosdisk(3,0x80,0,0,1,1,buffer); 
	  (!result)?(printf(" Writing main boot sector successfully!\n")):(printf(" Fail to write main boot sector!\n")); 
	} 
	printf(" Press any key to quit..."); 
   	getch(); 
   	return 0; 
}