subsys/ntvdm/ntvdm.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            subsys/ntvdm/ntvdm.c
   6  * PURPOSE:         Virtual DOS Machine
   7  * PROGRAMMER:      Robert Dickenson (robd@mok.lvcm.com)
   8  * UPDATE HISTORY:
   9  *                  Created 23/10/2002
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ntos.h>
  15 #include <windows.h>
  16 #include <stdio.h>
  17 #include <wchar.h>
  18
  19 #define NDEBUG
  20 #include <debug.h>
  21
  22 /* GLOBALS ******************************************************************/
  23
  24
  25 /* FUNCTIONS *****************************************************************/
  26
  27 void PrintString(char* fmt,...)
  28 {
  29    char buffer[512];
  30    va_list ap;
  31
  32    va_start(ap, fmt);
  33    vsprintf(buffer, fmt, ap);
  34    va_end(ap);
  35
  36    OutputDebugString(buffer);
  37 }
  38
  39 /*
  40 GetVersion
  41 GetVolumeInformationW
  42 GetWindowsDirectoryA
  43 GlobalMemoryStatus
  44 HeapAlloc
  45 HeapCreate
  46 HeapDestroy
  47 HeapFree
  48 HeapReAlloc
  49
  50 GetNextVDMCommand
  51 ExitVDM
  52 RegisterConsoleVDM
  53 SetVDMCurrentDirectories
  54 VDMConsoleOperation
  55 WriteConsoleInputVDMW
  56
  57 NtSetLdtEntries
  58 NtTerminateProcess
  59
  60 NtMapViewOfSection
  61 NtUnmapViewOfSection
  62
  63 NtVdmControl
  64  */
  65
  66 BOOLEAN
  67 StartVirtualMachine(VOID)
  68 {
  69    BOOLEAN Result;
  70    STARTUPINFO StartupInfo;
  71    PROCESS_INFORMATION ProcessInformation;
  72    CHAR CommandLine[MAX_PATH];
  73    CHAR CurrentDirectory[MAX_PATH];
  74
  75    GetSystemDirectory(CommandLine, MAX_PATH);
  76    strcat(CommandLine, "\\hello.exe");
  77    GetWindowsDirectory(CurrentDirectory, MAX_PATH);
  78
  79    StartupInfo.cb = sizeof(StartupInfo);
  80    StartupInfo.lpReserved = NULL;
  81    StartupInfo.lpDesktop = NULL;
  82    StartupInfo.lpTitle = NULL;
  83    StartupInfo.dwFlags = 0;
  84    StartupInfo.cbReserved2 = 0;
  85    StartupInfo.lpReserved2 = 0;
  86
  87    Result = CreateProcess(CommandLine,
  88                           NULL,
  89                           NULL,
  90                           NULL,
  91                           FALSE,
  92                           DETACHED_PROCESS,
  93                           NULL,
  94                           NULL,
  95                           &StartupInfo,
  96                           &ProcessInformation);
  97     if (!Result) {
  98         PrintString("WL: Failed to execute target process\n");
  99         return FALSE;
 100     }
 101     WaitForSingleObject(ProcessInformation.hProcess, INFINITE);
 102     CloseHandle(ProcessInformation.hProcess);
 103     CloseHandle(ProcessInformation.hThread);
 104     return TRUE;
 105 }
 106
 107 int STDCALL
 108 WinMain(HINSTANCE hInstance,  HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
 109 {
 110     DWORD Result;
 111     BOOL Success;
 112     ULONG i;
 113     NTSTATUS Status;
 114
 115     CHAR WelcomeMsg[] = "ReactOS Virtual DOS Machine support.\nType q<cr> to quit.";
 116     CHAR InputBuffer[255];
 117
 118     AllocConsole();
 119     SetConsoleTitle("ntvdm");
 120     StartVirtualMachine();
 121
 122     for (;;) {
 123         WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE),
 124                      WelcomeMsg, strlen(WelcomeMsg),  // wcslen(WelcomeMsg),
 125                      &Result, NULL);
 126         i = 0;
 127         do {
 128             ReadConsole(GetStdHandle(STD_INPUT_HANDLE),
 129                         &InputBuffer[i], 1,
 130                         &Result, NULL);
 131             if (++i >= (sizeof(InputBuffer) - 1)) {
 132                 break;
 133             }
 134         } while (InputBuffer[i - 1] != '\n');
 135         InputBuffer[i - 1] = '\0';
 136
 137         if (InputBuffer[0] == 'q' || InputBuffer[0] == 'Q') {
 138             break;
 139         }
 140     }
 141
 142     ExitProcess(0);
 143     return 0;
 144 }