Expose and Rehide a Hidden Partition

// Code to expose the hidden partition
#include <stdlib.h>
#include <stdio.h>
#include <dir.h>
#include <string.h>
#include <conio.h>
#include <io.h>
#include <dos.h>
#include <time.h>
#include <sys\stat.h>
#include <windows.h>
#include "bruce.i"
int main(int argc, char *argv[])
{
FILE *in,*out;
char fni[MAXDIR]="",fno[MAXDIR]="";
char read[3]="rb",write[3]="wb",append[3]="ab";
char data[256];
char drive[4]="?:\\";
int i,j,k;
char devpath[256]="\\device\\harddiskX\\partitionY";
char dev[3]="?:";
bool success;
int physdrive=0;
int drvpart=-1;

// ------------------------------------
// Physical drive numbering starts at 0
// Partition numbering starts at 1
// ------------------------------------

// Simple attempt to prevent unhiding more that 1 partition at a time
if (access("parthide.data",0) == 0)
   {
   printf("The file PARTHIDE.DATA has been found\n");
   printf("It is normally deleted when PARTHIDE.EXE runs\n");
   printf("I (abitrarily) decided no more that 1 hidden partition should be\n");
   printf("exposed at a time. Hide the currently exposed partition first\n");
   printf("Please run PARTHIDE.EXE to hide an already exposed hidden partition\n");
   exit(0);
   }
   
argc--;
if (argc == 0)
   {
   printf("Enter a physical drive number & a partition number to expose\n");
   exit(0);
   }
if (argc == 1)
   drvpart = atoi(argv[1]);
else
if (argc == 2)
   {
   physdrive = atoi(argv[1]);
   drvpart = atoi(argv[2]);
   }

sprintf(devpath,"\\device\\harddisk%d\\partition%d",physdrive,drvpart);
printf("Confirm you wish to expose Drive %d, Partition %d\n",physdrive,drvpart);
printf("Use <CTRL+C> if you wish to CANCEL!!!\n");
getch();

// Start at Z, looking for an unused drive letter to assign to the partition
for (i='Z'; i>'C'; i--)
   {
   drive[0] = i;
   k = GetDriveTypeA(drive);
   if (k == DRIVE_NO_ROOT_DIR)
      {
      dev[0] = i;
      break;
      }
   }
printf("The partition will be visible as drive %s\n",dev);

success = DefineDosDevice(
          DDD_NO_BROADCAST_SYSTEM|DDD_RAW_TARGET_PATH,
          dev,
          devpath);
if (success)
   printf("Check drive %s now. Run PARTHIDE.EXE when finished\n",dev);
else
   {
   printf("Your attempt failed miserably - RC=%d\n",GetLastError());
   exit(0);
   }
// Write data to a file for parthide.exe. Ensure it gets correct data
sprintf(data,"%s %d %d\r\n",dev,physdrive,drvpart);
out = fopen("parthide.data","wb");
fputs(data,out);
fclose(out);

return 0;
}

// Code to rehide the exposed partition
#include <stdlib.h>
#include <stdio.h>
#include <dir.h>
#include <string.h>
#include <conio.h>
#include <io.h>
#include <dos.h>
#include <time.h>
#include <sys\stat.h>
#include <windows.h>
#include "bruce.i"
int main(int argc, char *argv[])
{
FILE *in,*out;
char fni[MAXDIR]="",fno[MAXDIR]="";
char read[3]="rb",write[3]="wb",append[3]="ab";
char data[256];
int i,j,k;
char devpath[256]="\\device\\harddisk0\\partition2";
char dev[20]="z:";
bool success;

if (access("parthide.data",0) != 0)
   {
   printf("The required file, PARTHIDE.DATA, created by PARTSHOW.EXE was not found\n");
   printf("The data format is: Drive letter (Z:), Physical drive #, Partition #\n");
   printf("e.g., U: 0 2 on a CR/LF terminated line\n");
   printf("The drive letter, disk number & partition number must match\n");
   printf("the specifications used when the partition was exposed.\n");
   exit(0);
   }

in = fopen("parthide.data","rb");
fgets(data,80,in);
fclose(in);

data[strlen(data)-2] = '\0'; // Remove CRLF
// word() is a private string function
strcpy(dev,word(1,data));
sprintf(devpath,"\\device\\harddisk%s\\partition%s",word(2,data),word(3,data));

success = DefineDosDevice(
          DDD_EXACT_MATCH_ON_REMOVE|
          DDD_REMOVE_DEFINITION|
          DDD_RAW_TARGET_PATH,
          dev,
          devpath);

if (success)
   {
   printf("Check that drive %s is GONE!\n",dev);
   printf("And that the partition is hidden again\n");
   unlink("parthide.data");
   }
else
   printf("Your attempt failed miserably - RC=%d\n",GetLastError());
return 0;
}