ntoskrnl/ldr/userldr.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/ldr/sysdll.c
   5  * PURPOSE:         Loaders for PE executables
   6  * PROGRAMMERS:     Jean Michault
   7  *                  Rex Jolliff (rex@lvcablemodem.com)
   8  * UPDATE HISTORY:
   9  *   DW   26/01/00  Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15 #include <internal/module.h>
  16 #include <internal/ntoskrnl.h>
  17 #include <internal/ob.h>
  18 #include <internal/ps.h>
  19 #include <napi/teb.h>
  20 #include <internal/ldr.h>
  21
  22 #define NDEBUG
  23 #include <internal/debug.h>
  24
  25
  26 /* FUNCTIONS *****************************************************************/
  27
  28 NTSTATUS LdrpMapImage(HANDLE ProcessHandle,
  29                       HANDLE SectionHandle,
  30                       PVOID* ReturnedImageBase)
  31 /*
  32  * FUNCTION: LdrpMapImage maps a user-mode image into an address space
  33  * PARAMETERS:
  34  *   ProcessHandle
  35  *              Points to the process to map the image into
  36  *
  37  *   SectionHandle
  38  *              Points to the section to map
  39  *
  40  * RETURNS: Status
  41  */
  42 {
  43   ULONG ViewSize;
  44   PVOID ImageBase;
  45   NTSTATUS Status;
  46
  47   ViewSize = 0;
  48   ImageBase = 0;
  49
  50   Status = ZwMapViewOfSection(SectionHandle,
  51                               ProcessHandle,
  52                               (PVOID*)&ImageBase,
  53                               0,
  54                               ViewSize,
  55                               NULL,
  56                               &ViewSize,
  57                               0,
  58                               MEM_COMMIT,
  59                               PAGE_READWRITE);
  60   if (!NT_SUCCESS(Status))
  61     {
  62       CPRINT("Image map view of section failed (Status %x)", Status);
  63       return(Status);
  64     }
  65
  66    *ReturnedImageBase = ImageBase;
  67
  68    return(STATUS_SUCCESS);
  69 }