ntoskrnl/rtl/message.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:         See COPYING in the top level directory
   4  * PROJECT:           ReactOS kernel
   5  * PURPOSE:           Message table functions
   6  * FILE:              ntoskrnl/rtl/message.c
   7  * PROGRAMER:         Eric Kohl <ekohl@zr-online.de>
   8  * REVISION HISTORY:
   9  *                    29/05/2001: Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15
  16 #define NDEBUG
  17 #include <internal/debug.h>
  18
  19
  20 /* FUNCTIONS *****************************************************************/
  21
  22 NTSTATUS STDCALL
  23 RtlFindMessage(PVOID BaseAddress,
  24                ULONG Type,
  25                ULONG Language,
  26                ULONG MessageId,
  27                PRTL_MESSAGE_RESOURCE_ENTRY *MessageResourceEntry)
  28 {
  29    LDR_RESOURCE_INFO ResourceInfo;
  30    PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry;
  31    PRTL_MESSAGE_RESOURCE_DATA MessageTable;
  32    NTSTATUS Status;
  33    ULONG EntryOffset, IdOffset = 0;
  34    PRTL_MESSAGE_RESOURCE_ENTRY MessageEntry;
  35
  36    ULONG i;
  37
  38    DPRINT("RtlFindMessage()\n");
  39
  40    ResourceInfo.Type = Type;
  41    ResourceInfo.Name = 1;
  42    ResourceInfo.Language = Language;
  43
  44    Status = LdrFindResource_U(BaseAddress,
  45                               &ResourceInfo,
  46                               RESOURCE_DATA_LEVEL,
  47                               &ResourceDataEntry);
  48    if (!NT_SUCCESS(Status))
  49      {
  50         return(Status);
  51      }
  52
  53    DPRINT("ResourceDataEntry: %p\n", ResourceDataEntry);
  54
  55    Status = LdrAccessResource(BaseAddress,
  56                               ResourceDataEntry,
  57                               (PVOID*)&MessageTable,
  58                               NULL);
  59    if (!NT_SUCCESS(Status))
  60      {
  61         return(Status);
  62      }
  63
  64    DPRINT("MessageTable: %p\n", MessageTable);
  65
  66    DPRINT("NumberOfBlocks %lu\n", MessageTable->NumberOfBlocks);
  67    for (i = 0; i < MessageTable->NumberOfBlocks; i++)
  68      {
  69         DPRINT("LoId 0x%08lx  HiId 0x%08lx  Offset 0x%08lx\n",
  70                MessageTable->Blocks[i].LowId,
  71                MessageTable->Blocks[i].HighId,
  72                MessageTable->Blocks[i].OffsetToEntries);
  73      }
  74
  75    for (i = 0; i < MessageTable->NumberOfBlocks; i++)
  76      {
  77         if ((MessageId >= MessageTable->Blocks[i].LowId) &&
  78             (MessageId <= MessageTable->Blocks[i].HighId))
  79           {
  80              EntryOffset = MessageTable->Blocks[i].OffsetToEntries;
  81              IdOffset = MessageId - MessageTable->Blocks[i].LowId;
  82              break;
  83           }
  84
  85         if (MessageId < MessageTable->Blocks[i].LowId)
  86           {
  87              return STATUS_MESSAGE_NOT_FOUND;
  88           }
  89      }
  90
  91    MessageEntry = (PRTL_MESSAGE_RESOURCE_ENTRY)((PUCHAR)MessageTable + MessageTable->Blocks[i].OffsetToEntries);
  92
  93    DPRINT("EntryOffset 0x%08lx\n", EntryOffset);
  94    DPRINT("IdOffset 0x%08lx\n", IdOffset);
  95
  96    DPRINT("MessageEntry: %p\n", MessageEntry);
  97    for (i = 0; i < IdOffset; i++)
  98      {
  99         DPRINT("MessageEntry %d: %p\n", i, MessageEntry);
 100         MessageEntry = (PRTL_MESSAGE_RESOURCE_ENTRY)((PUCHAR)MessageEntry + (ULONG)MessageEntry->Length);
 101      }
 102    DPRINT("MessageEntry: %p\n", MessageEntry);
 103    DPRINT("Flags: %hx\n", MessageEntry->Flags);
 104    DPRINT("Length: %hu\n", MessageEntry->Length);
 105
 106    if (MessageEntry->Flags == 0)
 107      {
 108         DPRINT("AnsiText: %s\n", MessageEntry->Text);
 109      }
 110    else
 111      {
 112         DPRINT("UnicodeText: %S\n", (PWSTR)MessageEntry->Text);
 113      }
 114
 115    if (MessageResourceEntry != NULL);
 116      {
 117         *MessageResourceEntry = MessageEntry;
 118      }
 119
 120    return(STATUS_SUCCESS);
 121 }
 122
 123 /* EOF */