win32ss/user/winsrv/consrv/condrv/console.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Console Driver DLL
   4  * FILE:            win32ss/user/winsrv/consrv/condrv/console.c
   5  * PURPOSE:         Console Management Functions
   6  * PROGRAMMERS:     Gé van Geldorp
   7  *                  Jeffrey Morlan
   8  *                  Hermes Belusca-Maito (hermes.belusca@sfr.fr)
   9  */
  10
  11 /* INCLUDES *******************************************************************/
  12
  13 #include <consrv.h>
  14
  15 #include <coninput.h>
  16
  17 #define NDEBUG
  18 #include <debug.h>
  19
  20
  21 /* GLOBALS ********************************************************************/
  22
  23 static ULONG CurrentConsoleID = 0;
  24
  25 /* Linked list of consoles */
  26 static LIST_ENTRY ConsoleList;
  27 static RTL_RESOURCE ListLock;
  28
  29 #define ConDrvLockConsoleListExclusive()    \
  30     RtlAcquireResourceExclusive(&ListLock, TRUE)
  31
  32 #define ConDrvLockConsoleListShared()       \
  33     RtlAcquireResourceShared(&ListLock, TRUE)
  34
  35 #define ConDrvUnlockConsoleList()           \
  36     RtlReleaseResource(&ListLock)
  37
  38
  39 static NTSTATUS
  40 InsertConsole(IN PCONSOLE Console)
  41 {
  42     ASSERT(Console);
  43
  44     /* All went right, so add the console to the list */
  45     ConDrvLockConsoleListExclusive();
  46
  47     DPRINT1("Insert in the list\n");
  48     InsertTailList(&ConsoleList, &Console->ListEntry);
  49
  50     // FIXME: Move this code to the caller function!!
  51     /* Get a new console ID */
  52     _InterlockedExchange((PLONG)&Console->ConsoleID, CurrentConsoleID);
  53     _InterlockedIncrement((PLONG)&CurrentConsoleID);
  54
  55     /* Unlock the console list and return success */
  56     ConDrvUnlockConsoleList();
  57     return STATUS_SUCCESS;
  58 }
  59
  60 static NTSTATUS
  61 RemoveConsole(IN PCONSOLE Console)
  62 {
  63     // ASSERT(Console);
  64     if (!Console) return STATUS_INVALID_PARAMETER;
  65
  66     /* Remove the console from the list */
  67     ConDrvLockConsoleListExclusive();
  68
  69     RemoveEntryList(&Console->ListEntry);
  70
  71     /* Unlock the console list and return success */
  72     ConDrvUnlockConsoleList();
  73     return STATUS_SUCCESS;
  74 }
  75
  76
  77 /* PRIVATE FUNCTIONS **********************************************************/
  78
  79 // Adapted from reactos/lib/rtl/unicode.c, RtlCreateUnicodeString line 2180
  80 static BOOLEAN
  81 ConsoleCreateUnicodeString(IN OUT PUNICODE_STRING UniDest,
  82                            IN PCWSTR Source)
  83 {
  84     SIZE_T Size = (wcslen(Source) + 1) * sizeof(WCHAR);
  85     if (Size > MAXUSHORT) return FALSE;
  86
  87     UniDest->Buffer = ConsoleAllocHeap(HEAP_ZERO_MEMORY, Size);
  88     if (UniDest->Buffer == NULL) return FALSE;
  89
  90     RtlCopyMemory(UniDest->Buffer, Source, Size);
  91     UniDest->MaximumLength = (USHORT)Size;
  92     UniDest->Length = (USHORT)Size - sizeof(WCHAR);
  93
  94     return TRUE;
  95 }
  96
  97 // Adapted from reactos/lib/rtl/unicode.c, RtlFreeUnicodeString line 431
  98 static VOID
  99 ConsoleFreeUnicodeString(IN PUNICODE_STRING UnicodeString)
 100 {
 101     if (UnicodeString->Buffer)
 102     {
 103         ConsoleFreeHeap(UnicodeString->Buffer);
 104         RtlZeroMemory(UnicodeString, sizeof(UNICODE_STRING));
 105     }
 106 }
 107
 108 VOID NTAPI
 109 ConDrvPause(PCONSOLE Console)
 110 {
 111     if (!Console->UnpauseEvent)
 112         Console->UnpauseEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
 113 }
 114
 115 VOID NTAPI
 116 ConDrvUnpause(PCONSOLE Console)
 117 {
 118     if (Console->UnpauseEvent)
 119     {
 120         SetEvent(Console->UnpauseEvent);
 121         CloseHandle(Console->UnpauseEvent);
 122         Console->UnpauseEvent = NULL;
 123     }
 124 }
 125
 126
 127 /*
 128  * Console accessibility check helpers
 129  */
 130
 131 BOOLEAN NTAPI
 132 ConDrvValidateConsoleState(IN PCONSOLE Console,
 133                            IN CONSOLE_STATE ExpectedState)
 134 {
 135     // if (!Console) return FALSE;
 136
 137     /* The console must be locked */
 138     // ASSERT(Console_locked);
 139
 140     return (Console->State == ExpectedState);
 141 }
 142
 143 BOOLEAN NTAPI
 144 ConDrvValidateConsoleUnsafe(IN PCONSOLE Console,
 145                             IN CONSOLE_STATE ExpectedState,
 146                             IN BOOLEAN LockConsole)
 147 {
 148     if (!Console) return FALSE;
 149
 150     /*
 151      * Lock the console to forbid possible console's state changes
 152      * (which must be done when the console is already locked).
 153      * If we don't want to lock it, it's because the lock is already
 154      * held. So there must be no problems.
 155      */
 156     if (LockConsole) EnterCriticalSection(&Console->Lock);
 157
 158     // ASSERT(Console_locked);
 159
 160     /* Check whether the console's state is what we expect */
 161     if (!ConDrvValidateConsoleState(Console, ExpectedState))
 162     {
 163         if (LockConsole) LeaveCriticalSection(&Console->Lock);
 164         return FALSE;
 165     }
 166
 167     return TRUE;
 168 }
 169
 170
 171 /* CONSOLE INITIALIZATION FUNCTIONS *******************************************/
 172
 173 VOID NTAPI
 174 ConDrvInitConsoleSupport(VOID)
 175 {
 176     DPRINT("CONSRV: ConDrvInitConsoleSupport()\n");
 177
 178     /* Initialize the console list and its lock */
 179     InitializeListHead(&ConsoleList);
 180     RtlInitializeResource(&ListLock);
 181
 182     /* Should call LoadKeyboardLayout */
 183 }
 184
 185 /* For resetting the terminal - defined in dummyterm.c */
 186 VOID ResetTerminal(IN PCONSOLE Console);
 187
 188 NTSTATUS NTAPI
 189 ConDrvInitConsole(OUT PCONSOLE* NewConsole,
 190                   IN PCONSOLE_INFO ConsoleInfo)
 191 {
 192     NTSTATUS Status;
 193     SECURITY_ATTRIBUTES SecurityAttributes;
 194     // CONSOLE_INFO CapturedConsoleInfo;
 195     TEXTMODE_BUFFER_INFO ScreenBufferInfo;
 196     PCONSOLE Console;
 197     PCONSOLE_SCREEN_BUFFER NewBuffer;
 198 #if 0
 199     WCHAR DefaultTitle[128];
 200 #endif
 201
 202     if (NewConsole == NULL || ConsoleInfo == NULL)
 203         return STATUS_INVALID_PARAMETER;
 204
 205     *NewConsole = NULL;
 206
 207     /*
 208      * Allocate a new console
 209      */
 210     Console = ConsoleAllocHeap(HEAP_ZERO_MEMORY, sizeof(*Console));
 211     if (NULL == Console)
 212     {
 213         DPRINT1("Not enough memory for console creation.\n");
 214         return STATUS_NO_MEMORY;
 215     }
 216
 217     /*
 218      * Fix the screen buffer size if needed. The rule is:
 219      * ScreenBufferSize >= ConsoleSize
 220      */
 221     if (ConsoleInfo->ScreenBufferSize.X < ConsoleInfo->ConsoleSize.X)
 222         ConsoleInfo->ScreenBufferSize.X = ConsoleInfo->ConsoleSize.X;
 223     if (ConsoleInfo->ScreenBufferSize.Y < ConsoleInfo->ConsoleSize.Y)
 224         ConsoleInfo->ScreenBufferSize.Y = ConsoleInfo->ConsoleSize.Y;
 225
 226     /*
 227      * Initialize the console
 228      */
 229     Console->State = CONSOLE_INITIALIZING;
 230     Console->ReferenceCount = 0;
 231     InitializeCriticalSection(&Console->Lock);
 232
 233     /* Initialize the terminal interface */
 234     ResetTerminal(Console);
 235
 236     Console->ConsoleSize = ConsoleInfo->ConsoleSize;
 237     Console->FixedSize   = FALSE; // Value by default; is reseted by the terminals if needed.
 238
 239     /*
 240      * Initialize the input buffer
 241      */
 242     ConSrvInitObject(&Console->InputBuffer.Header, INPUT_BUFFER, Console);
 243
 244     SecurityAttributes.nLength = sizeof(SECURITY_ATTRIBUTES);
 245     SecurityAttributes.lpSecurityDescriptor = NULL;
 246     SecurityAttributes.bInheritHandle = TRUE;
 247     Console->InputBuffer.ActiveEvent = CreateEventW(&SecurityAttributes, TRUE, FALSE, NULL);
 248     if (NULL == Console->InputBuffer.ActiveEvent)
 249     {
 250         DeleteCriticalSection(&Console->Lock);
 251         ConsoleFreeHeap(Console);
 252         return STATUS_UNSUCCESSFUL;
 253     }
 254
 255     Console->InputBuffer.InputBufferSize = 0; // FIXME!
 256     InitializeListHead(&Console->InputBuffer.InputEvents);
 257     Console->InputBuffer.Mode = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
 258                                 ENABLE_ECHO_INPUT      | ENABLE_MOUSE_INPUT;
 259
 260     /* Set-up the code page */
 261     Console->InputCodePage = Console->OutputCodePage = ConsoleInfo->CodePage;
 262
 263     /* Initialize a new text-mode screen buffer with default settings */
 264     ScreenBufferInfo.ScreenBufferSize = ConsoleInfo->ScreenBufferSize;
 265     ScreenBufferInfo.ScreenAttrib     = ConsoleInfo->ScreenAttrib;
 266     ScreenBufferInfo.PopupAttrib      = ConsoleInfo->PopupAttrib;
 267     ScreenBufferInfo.IsCursorVisible  = TRUE;
 268     ScreenBufferInfo.CursorSize       = ConsoleInfo->CursorSize;
 269
 270     InitializeListHead(&Console->BufferList);
 271     Status = ConDrvCreateScreenBuffer(&NewBuffer,
 272                                       Console,
 273                                       CONSOLE_TEXTMODE_BUFFER,
 274                                       &ScreenBufferInfo);
 275     if (!NT_SUCCESS(Status))
 276     {
 277         DPRINT1("ConDrvCreateScreenBuffer: failed, Status = 0x%08lx\n", Status);
 278         CloseHandle(Console->InputBuffer.ActiveEvent);
 279         DeleteCriticalSection(&Console->Lock);
 280         ConsoleFreeHeap(Console);
 281         return Status;
 282     }
 283     /* Make the new screen buffer active */
 284     Console->ActiveBuffer = NewBuffer;
 285     Console->UnpauseEvent = NULL;
 286
 287     /* Initialize the console title */
 288     ConsoleCreateUnicodeString(&Console->OriginalTitle, ConsoleInfo->ConsoleTitle);
 289 #if 0
 290     if (ConsoleInfo.ConsoleTitle[0] == L'\0')
 291     {
 292         if (LoadStringW(ConSrvDllInstance, IDS_CONSOLE_TITLE, DefaultTitle, sizeof(DefaultTitle) / sizeof(DefaultTitle[0])))
 293         {
 294             ConsoleCreateUnicodeString(&Console->Title, DefaultTitle);
 295         }
 296         else
 297         {
 298             ConsoleCreateUnicodeString(&Console->Title, L"ReactOS Console");
 299         }
 300     }
 301     else
 302     {
 303 #endif
 304         ConsoleCreateUnicodeString(&Console->Title, ConsoleInfo->ConsoleTitle);
 305 #if 0
 306     }
 307 #endif
 308
 309     DPRINT("Console initialized\n");
 310
 311     /* All went right, so add the console to the list */
 312     Status = InsertConsole(Console);
 313     if (!NT_SUCCESS(Status))
 314     {
 315         /* Fail */
 316         ConDrvDeleteConsole(Console);
 317         return Status;
 318     }
 319
 320     /* The initialization is finished */
 321     DPRINT("Change state\n");
 322     Console->State = CONSOLE_RUNNING;
 323
 324     /* Return the newly created console to the caller and a success code too */
 325     *NewConsole = Console;
 326     return STATUS_SUCCESS;
 327 }
 328
 329 NTSTATUS NTAPI
 330 ConDrvRegisterTerminal(IN PCONSOLE Console,
 331                        IN PTERMINAL Terminal)
 332 {
 333     NTSTATUS Status;
 334
 335     if (Console == NULL || Terminal == NULL)
 336         return STATUS_INVALID_PARAMETER;
 337
 338     /* FIXME: Lock the console before ?? */
 339
 340     /*
 341      * Attach the terminal to the console. Use now the TermIFace of the console,
 342      * and not the user-defined temporary Terminal pointer.
 343      */
 344     Console->TermIFace = *Terminal;
 345     Console->TermIFace.Console = Console;
 346
 347     /* Initialize the terminal AFTER having attached it to the console */
 348     DPRINT("Finish initialization of terminal\n");
 349     Status = Console->TermIFace.Vtbl->InitTerminal(&Console->TermIFace, Console);
 350     if (!NT_SUCCESS(Status))
 351     {
 352         DPRINT1("Terminal initialization failed, Status = 0x%08lx\n", Status);
 353
 354         /* We failed, detach the terminal from the console */
 355         Terminal->Console = NULL; // For the caller
 356         ResetTerminal(Console);
 357
 358         return Status;
 359     }
 360
 361     /* Copy buffer contents to screen */
 362     // Terminal.Draw();
 363     // ConioDrawConsole(Console);
 364     DPRINT("Console drawn\n");
 365
 366     DPRINT("Terminal initialization done\n");
 367     return STATUS_SUCCESS;
 368 }
 369
 370 NTSTATUS NTAPI
 371 ConDrvDeregisterTerminal(IN PCONSOLE Console)
 372 {
 373     if (Console == NULL) return STATUS_INVALID_PARAMETER;
 374
 375     /* FIXME: Lock the console before ?? */
 376
 377     /* Deinitialize the terminal BEFORE detaching it from the console */
 378     Console->TermIFace.Vtbl->DeinitTerminal(&Console->TermIFace/*, Console*/);
 379
 380     /*
 381      * Detach the terminal from the console:
 382      * reinitialize the terminal interface.
 383      */
 384     ResetTerminal(Console);
 385
 386     DPRINT("Terminal unregistered\n");
 387     return STATUS_SUCCESS;
 388 }
 389
 390 VOID NTAPI
 391 ConDrvDeleteConsole(IN PCONSOLE Console)
 392 {
 393     DPRINT("ConDrvDeleteConsole(0x%p)\n", Console);
 394
 395     /*
 396      * Forbid validation of any console by other threads
 397      * during the deletion of this console.
 398      */
 399     ConDrvLockConsoleListExclusive();
 400
 401     /*
 402      * If the console is already being destroyed, i.e. not running
 403      * or finishing to be initialized, just return.
 404      */
 405     if (!ConDrvValidateConsoleUnsafe(Console, CONSOLE_RUNNING, TRUE) &&
 406         !ConDrvValidateConsoleUnsafe(Console, CONSOLE_INITIALIZING, TRUE))
 407     {
 408         /* Unlock the console list and return */
 409         ConDrvUnlockConsoleList();
 410         return;
 411     }
 412
 413     /*
 414      * We are about to be destroyed. Signal it to other people
 415      * so that they can terminate what they are doing, and that
 416      * they cannot longer validate the console.
 417      */
 418     Console->State = CONSOLE_TERMINATING;
 419
 420     /*
 421      * Allow other threads to finish their job: basically, unlock
 422      * all other calls to EnterCriticalSection(&Console->Lock); by
 423      * ConDrvValidateConsoleUnsafe functions so that they just see
 424      * that we are not in CONSOLE_RUNNING state anymore, or unlock
 425      * other concurrent calls to ConDrvDeleteConsole so that they
 426      * can see that we are in fact already deleting the console.
 427      */
 428     LeaveCriticalSection(&Console->Lock);
 429     ConDrvUnlockConsoleList();
 430
 431     /* FIXME: Send a terminate message to all the processes owning this console */
 432
 433     /* Cleanup the UI-oriented part */
 434     DPRINT("Deregister console\n");
 435     ConDrvDeregisterTerminal(Console);
 436     DPRINT("Console deregistered\n");
 437
 438     /***
 439      * Check that the console is in terminating state before continuing
 440      * (the cleanup code must not change the state of the console...
 441      * ...unless to cancel console deletion ?).
 442      ***/
 443
 444     ConDrvLockConsoleListExclusive();
 445
 446     if (!ConDrvValidateConsoleUnsafe(Console, CONSOLE_TERMINATING, TRUE))
 447     {
 448         ConDrvUnlockConsoleList();
 449         return;
 450     }
 451
 452     /* We are now in destruction */
 453     Console->State = CONSOLE_IN_DESTRUCTION;
 454
 455     /* We really delete the console. Reset the count to be sure. */
 456     Console->ReferenceCount = 0;
 457
 458     /* Remove the console from the list */
 459     RemoveConsole(Console);
 460
 461     /* Discard all entries in the input event queue */
 462     PurgeInputBuffer(Console);
 463     if (Console->LineBuffer) ConsoleFreeHeap(Console->LineBuffer);
 464
 465     /* Delete the last screen buffer */
 466     ConioDeleteScreenBuffer(Console->ActiveBuffer);
 467     Console->ActiveBuffer = NULL;
 468     if (!IsListEmpty(&Console->BufferList))
 469     {
 470         DPRINT1("BUG: screen buffer list not empty\n");
 471         ASSERT(FALSE);
 472     }
 473
 474     /**/ CloseHandle(Console->InputBuffer.ActiveEvent); /**/
 475     if (Console->UnpauseEvent) CloseHandle(Console->UnpauseEvent);
 476
 477     ConsoleFreeUnicodeString(&Console->OriginalTitle);
 478     ConsoleFreeUnicodeString(&Console->Title);
 479
 480     DPRINT("ConDrvDeleteConsole - Unlocking\n");
 481     LeaveCriticalSection(&Console->Lock);
 482     DPRINT("ConDrvDeleteConsole - Destroying lock\n");
 483     DeleteCriticalSection(&Console->Lock);
 484     DPRINT("ConDrvDeleteConsole - Lock destroyed ; freeing console\n");
 485
 486     ConsoleFreeHeap(Console);
 487     DPRINT("ConDrvDeleteConsole - Console destroyed\n");
 488
 489     /* Unlock the console list and return */
 490     ConDrvUnlockConsoleList();
 491 }
 492
 493
 494 /* PUBLIC DRIVER APIS *********************************************************/
 495
 496 NTSTATUS NTAPI
 497 ConDrvGetConsoleMode(IN PCONSOLE Console,
 498                      IN PCONSOLE_IO_OBJECT Object,
 499                      OUT PULONG ConsoleMode)
 500 {
 501     NTSTATUS Status = STATUS_SUCCESS;
 502
 503     if (Console == NULL || Object == NULL || ConsoleMode == NULL)
 504         return STATUS_INVALID_PARAMETER;
 505
 506     /* Validity check */
 507     ASSERT(Console == Object->Console);
 508
 509     /*** FIXME: */ *ConsoleMode = 0; /***/
 510
 511     if (INPUT_BUFFER == Object->Type)
 512     {
 513         PCONSOLE_INPUT_BUFFER InputBuffer = (PCONSOLE_INPUT_BUFFER)Object;
 514         *ConsoleMode = InputBuffer->Mode;
 515     }
 516     else if (TEXTMODE_BUFFER == Object->Type || GRAPHICS_BUFFER == Object->Type)
 517     {
 518         PCONSOLE_SCREEN_BUFFER Buffer = (PCONSOLE_SCREEN_BUFFER)Object;
 519         *ConsoleMode = Buffer->Mode;
 520     }
 521     else
 522     {
 523         Status = STATUS_INVALID_HANDLE;
 524     }
 525
 526     return Status;
 527 }
 528
 529 NTSTATUS NTAPI
 530 ConDrvSetConsoleMode(IN PCONSOLE Console,
 531                      IN PCONSOLE_IO_OBJECT Object,
 532                      IN ULONG ConsoleMode)
 533 {
 534 #define CONSOLE_VALID_INPUT_MODES   ( ENABLE_PROCESSED_INPUT  | ENABLE_LINE_INPUT   | \
 535                                       ENABLE_ECHO_INPUT       | ENABLE_WINDOW_INPUT | \
 536                                       ENABLE_MOUSE_INPUT )
 537 #define CONSOLE_VALID_OUTPUT_MODES  ( ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT )
 538
 539     NTSTATUS Status = STATUS_SUCCESS;
 540
 541     if (Console == NULL || Object == NULL)
 542         return STATUS_INVALID_PARAMETER;
 543
 544     /* Validity check */
 545     ASSERT(Console == Object->Console);
 546
 547     if (INPUT_BUFFER == Object->Type)
 548     {
 549         PCONSOLE_INPUT_BUFFER InputBuffer = (PCONSOLE_INPUT_BUFFER)Object;
 550
 551         /* Only the presence of valid mode flags is allowed */
 552         if (ConsoleMode & ~CONSOLE_VALID_INPUT_MODES)
 553         {
 554             Status = STATUS_INVALID_PARAMETER;
 555         }
 556         else
 557         {
 558             InputBuffer->Mode = (ConsoleMode & CONSOLE_VALID_INPUT_MODES);
 559         }
 560     }
 561     else if (TEXTMODE_BUFFER == Object->Type || GRAPHICS_BUFFER == Object->Type)
 562     {
 563         PCONSOLE_SCREEN_BUFFER Buffer = (PCONSOLE_SCREEN_BUFFER)Object;
 564
 565         /* Only the presence of valid mode flags is allowed */
 566         if (ConsoleMode & ~CONSOLE_VALID_OUTPUT_MODES)
 567         {
 568             Status = STATUS_INVALID_PARAMETER;
 569         }
 570         else
 571         {
 572             Buffer->Mode = (ConsoleMode & CONSOLE_VALID_OUTPUT_MODES);
 573         }
 574     }
 575     else
 576     {
 577         Status = STATUS_INVALID_HANDLE;
 578     }
 579
 580     return Status;
 581 }
 582
 583 NTSTATUS NTAPI
 584 ConDrvGetConsoleTitle(IN PCONSOLE Console,
 585                       IN BOOLEAN Unicode,
 586                       IN OUT PVOID TitleBuffer,
 587                       IN OUT PULONG BufLength)
 588 {
 589     ULONG Length;
 590
 591     if (Console == NULL || TitleBuffer == NULL || BufLength == NULL)
 592         return STATUS_INVALID_PARAMETER;
 593
 594     /* Copy title of the console to the user title buffer */
 595     if (Unicode)
 596     {
 597         if (*BufLength >= sizeof(WCHAR))
 598         {
 599             Length = min(*BufLength - sizeof(WCHAR), Console->Title.Length);
 600             RtlCopyMemory(TitleBuffer, Console->Title.Buffer, Length);
 601             ((PWCHAR)TitleBuffer)[Length / sizeof(WCHAR)] = L'\0';
 602             *BufLength = Length;
 603         }
 604         else
 605         {
 606             *BufLength = Console->Title.Length;
 607         }
 608     }
 609     else
 610     {
 611         if (*BufLength >= sizeof(CHAR))
 612         {
 613             Length = min(*BufLength - sizeof(CHAR), Console->Title.Length / sizeof(WCHAR));
 614             Length = WideCharToMultiByte(Console->InputCodePage, 0,
 615                                          Console->Title.Buffer, Length,
 616                                          TitleBuffer, Length,
 617                                          NULL, NULL);
 618             ((PCHAR)TitleBuffer)[Length] = '\0';
 619             *BufLength = Length;
 620         }
 621         else
 622         {
 623             *BufLength = Console->Title.Length / sizeof(WCHAR);
 624         }
 625     }
 626
 627     return STATUS_SUCCESS;
 628 }
 629
 630 NTSTATUS NTAPI
 631 ConDrvSetConsoleTitle(IN PCONSOLE Console,
 632                       IN BOOLEAN Unicode,
 633                       IN PVOID TitleBuffer,
 634                       IN ULONG BufLength)
 635 {
 636     PWCHAR Buffer;
 637     ULONG  Length;
 638
 639     if (Console == NULL || TitleBuffer == NULL)
 640         return STATUS_INVALID_PARAMETER;
 641
 642     if (Unicode)
 643     {
 644         /* Length is in bytes */
 645         Length = BufLength;
 646     }
 647     else
 648     {
 649         /* Use the console input CP for the conversion */
 650         Length = MultiByteToWideChar(Console->InputCodePage, 0,
 651                                      TitleBuffer, BufLength,
 652                                      NULL, 0);
 653         /* The returned Length was in number of wchars, convert it in bytes */
 654         Length *= sizeof(WCHAR);
 655     }
 656
 657     /* Allocate a new buffer to hold the new title (NULL-terminated) */
 658     Buffer = ConsoleAllocHeap(HEAP_ZERO_MEMORY, Length + sizeof(WCHAR));
 659     if (!Buffer) return STATUS_NO_MEMORY;
 660
 661     /* Free the old title */
 662     ConsoleFreeUnicodeString(&Console->Title);
 663
 664     /* Copy title to console */
 665     Console->Title.Buffer = Buffer;
 666     Console->Title.Length = Length;
 667     Console->Title.MaximumLength = Console->Title.Length + sizeof(WCHAR);
 668
 669     if (Unicode)
 670     {
 671         RtlCopyMemory(Console->Title.Buffer, TitleBuffer, Console->Title.Length);
 672     }
 673     else
 674     {
 675         MultiByteToWideChar(Console->InputCodePage, 0,
 676                             TitleBuffer, BufLength,
 677                             Console->Title.Buffer,
 678                             Console->Title.Length / sizeof(WCHAR));
 679     }
 680
 681     /* NULL-terminate */
 682     Console->Title.Buffer[Console->Title.Length / sizeof(WCHAR)] = L'\0';
 683
 684     // TermChangeTitle(Console);
 685     return STATUS_SUCCESS;
 686 }
 687
 688 NTSTATUS NTAPI
 689 ConDrvGetConsoleCP(IN PCONSOLE Console,
 690                    OUT PUINT CodePage,
 691                    IN BOOLEAN OutputCP)
 692 {
 693     if (Console == NULL || CodePage == NULL)
 694         return STATUS_INVALID_PARAMETER;
 695
 696     *CodePage = (OutputCP ? Console->OutputCodePage : Console->InputCodePage);
 697
 698     return STATUS_SUCCESS;
 699 }
 700
 701 NTSTATUS NTAPI
 702 ConDrvSetConsoleCP(IN PCONSOLE Console,
 703                    IN UINT CodePage,
 704                    IN BOOLEAN OutputCP)
 705 {
 706     if (Console == NULL || !IsValidCodePage(CodePage))
 707         return STATUS_INVALID_PARAMETER;
 708
 709     if (OutputCP)
 710         Console->OutputCodePage = CodePage;
 711     else
 712         Console->InputCodePage = CodePage;
 713
 714     return STATUS_SUCCESS;
 715 }
 716
 717 /* EOF */