[ROSAPPS:PARTINFO] Code formatting.

modules/rosapps/applications/sysutils/utils/partinfo/partinfo.c

@@ -2,46 +2,35 @@
  * partinfo - partition info program
  */
 
+#include <stdio.h>
+#include <stdlib.h>
+
 #define WIN32_NO_STATUS
 #include <windows.h>
-#include <stdlib.h>
 #include <ntndk.h>
-#include <stdio.h>
 
-//#define DUMP_DATA
+// #define DUMP_DATA
 #define DUMP_SIZE_INFO
 
 #ifdef DUMP_DATA
-void HexDump(char *buffer, ULONG size)
+void HexDump(
+    IN PVOID buffer,
+    IN ULONG size)
 {
-  ULONG offset = 0;
-  unsigned char *ptr;
+    ULONG_PTR offset = 0;
+    PUCHAR ptr;
 
     while (offset < (size & ~15))
     {
-      ptr = (unsigned char*)((ULONG)buffer + offset);
+        ptr = (PUCHAR)((ULONG_PTR)buffer + offset);
         printf("%08lx  %02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx-%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx\n",
                offset,
-	     ptr[0],
-	     ptr[1],
-	     ptr[2],
-	     ptr[3],
-	     ptr[4],
-	     ptr[5],
-	     ptr[6],
-	     ptr[7],
-	     ptr[8],
-	     ptr[9],
-	     ptr[10],
-	     ptr[11],
-	     ptr[12],
-	     ptr[13],
-	     ptr[14],
-	     ptr[15]);
+               ptr[0], ptr[1], ptr[2] , ptr[3] , ptr[4] , ptr[5] , ptr[6] , ptr[7],
+               ptr[8], ptr[9], ptr[10], ptr[11], ptr[12], ptr[13], ptr[14], ptr[15]);
       offset += 16;
     }
 
-  ptr = (unsigned char*)((ULONG)buffer + offset);
+    ptr = (PUCHAR)((ULONG_PTR)buffer + offset);
     printf("%08lx ", offset);
     while (offset < size)
     {
@@ -54,67 +43,65 @@ void HexDump(char *buffer, ULONG size)
 }
 #endif
 
-
 void Usage(void)
 {
     puts("Usage: partinfo <drive number>");
 }
 
-
-int main (int argc, char *argv[])
+int main(int argc, char *argv[])
 {
+    NTSTATUS Status;
+    ULONG ulDrive;
     HANDLE hDisk;
     DWORD dwRead;
     DWORD i;
-  char *Buffer;
-  DRIVE_LAYOUT_INFORMATION *LayoutBuffer;
-  DISK_GEOMETRY DiskGeometry;
-  ULONG ulDrive;
-  CHAR DriveName[40];
     SYSTEM_DEVICE_INFORMATION DeviceInfo;
-  NTSTATUS Status;
+    DISK_GEOMETRY DiskGeometry;
+    PDRIVE_LAYOUT_INFORMATION LayoutBuffer;
+    CHAR DriveName[40];
 
     if (argc != 2)
     {
         Usage();
-      return(0);
+        return 0;
     }
 
     ulDrive = strtoul(argv[1], NULL, 10);
     if (errno != 0)
     {
         printf("Error: Malformed drive number\n");
-      return(0);
+        return 0;
     }
 
-  /* Check drive number */
+    /*
+     * Retrieve the number of disks on the system.
+     */
     Status = NtQuerySystemInformation(SystemDeviceInformation,
                                       &DeviceInfo,
-				    sizeof(SYSTEM_DEVICE_INFORMATION),
+                                      sizeof(DeviceInfo),
                                       &i);
     if (!NT_SUCCESS(Status))
     {
         printf("NtQuerySystemInformation() failed (Status %lx)\n", Status);
-      return(0);
+        return 0;
     }
-
     if (DeviceInfo.NumberOfDisks == 0)
     {
         printf("No disk drive installed!\n");
-      return(0);
+        return 0;
     }
 
     if (ulDrive >= DeviceInfo.NumberOfDisks)
     {
         printf("Invalid disk drive number! Valid drive numbers [0-%lu]\n",
                DeviceInfo.NumberOfDisks-1);
-      return(0);
+        return 0;
     }
 
-  /* Build full drive name */
+    /* Build the full drive name */
     sprintf(DriveName, "\\\\.\\PHYSICALDRIVE%lu", ulDrive);
 
-  /* Open drive */
+    /* Open the drive */
     hDisk = CreateFileA(DriveName,
                         GENERIC_READ,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
@@ -128,24 +115,26 @@ int main (int argc, char *argv[])
         return 0;
     }
 
-  /* Get drive geometry */
+    /*
+     * Get the drive geometry.
+     */
     if (!DeviceIoControl(hDisk,
                          IOCTL_DISK_GET_DRIVE_GEOMETRY,
                          NULL,
                          0,
                          &DiskGeometry,
-		       sizeof(DISK_GEOMETRY),
+                         sizeof(DiskGeometry),
                          &dwRead,
                          NULL))
     {
-      CloseHandle(hDisk);
-      printf("DeviceIoControl failed! Error: %lu\n",
+        printf("DeviceIoControl(IOCTL_DISK_GET_DRIVE_GEOMETRY) failed! Error: %lu\n",
                GetLastError());
+        CloseHandle(hDisk);
         return 0;
     }
 
 #ifdef DUMP_DATA
-  HexDump((char*)&DiskGeometry, dwRead);
+    HexDump(&DiskGeometry, dwRead);
 #endif
     printf("Drive number: %lu\n", ulDrive);
     printf("Cylinders: %I64u\nMediaType: %x\nTracksPerCylinder: %lu\n"
@@ -156,40 +145,45 @@ int main (int argc, char *argv[])
            DiskGeometry.SectorsPerTrack,
            DiskGeometry.BytesPerSector);
 
+#if 0 // TODO!
+    /* Get extended drive geometry */
+    // IOCTL_DISK_GET_DRIVE_GEOMETRY_EX
+#endif
 
-  Buffer = (char*)malloc(8192);
-  if (Buffer == NULL)
+    /*
+     * Retrieve the legacy partition layout
+     */
+    LayoutBuffer = (PDRIVE_LAYOUT_INFORMATION)malloc(8192);
+    if (LayoutBuffer == NULL)
     {
-      CloseHandle(hDisk);
         printf("Out of memory!");
+        CloseHandle(hDisk);
         return 0;
     }
-  memset(Buffer, 0, 8192);
+    memset(LayoutBuffer, 0, 8192);
 
     if (!DeviceIoControl(hDisk,
                          IOCTL_DISK_GET_DRIVE_LAYOUT,
                          NULL,
                          0,
-		       Buffer,
+                         LayoutBuffer,
                          8192,
                          &dwRead,
                          NULL))
     {
-      CloseHandle(hDisk);
         printf("DeviceIoControl(IOCTL_DISK_GET_DRIVE_LAYOUT) failed! Error: %lu\n",
                GetLastError());
-      free(Buffer);
+        CloseHandle(hDisk);
+        free(LayoutBuffer);
         return 0;
     }
 
     CloseHandle(hDisk);
 
 #ifdef DUMP_DATA
-  HexDump(Buffer, dwRead);
+    HexDump(LayoutBuffer, dwRead);
 #endif
 
-  LayoutBuffer = (DRIVE_LAYOUT_INFORMATION*)Buffer;
-
     printf("Partitions %lu  Signature %lx\n",
            LayoutBuffer->PartitionCount,
            LayoutBuffer->Signature);
@@ -205,7 +199,9 @@ int main (int argc, char *argv[])
                LayoutBuffer->PartitionEntry[i].PartitionLength.QuadPart);
     }
 
-  free(Buffer);
+    free(LayoutBuffer);
+
+    // TODO: Retrieve the extended partition layout
 
     return 0;
 }