programs/osversioncheck/osversioncheck.c

   1 /*
   2  * Use the GetVersionEx() Win32 API call to show information about
   3  * which version of Windows we're running (or which version of Windows
   4  * Wine believes it is masquerading as).
   5  *
   6  * Copyright 1999 by Morten Eriksen <mailto:mortene@sim.no>
   7  *
   8  */
   9
  10 #include <windows.h>
  11 #include <winbase.h>
  12 #include <stdio.h>
  13
  14 void
  15 show_last_error(void)
  16 {
  17   DWORD lasterr;
  18   LPTSTR buffer;
  19   BOOL result;
  20
  21   lasterr = GetLastError();
  22
  23   result = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
  24                          FORMAT_MESSAGE_FROM_SYSTEM |
  25                          FORMAT_MESSAGE_IGNORE_INSERTS,
  26                          NULL,
  27                          lasterr,
  28                          0,
  29                          (LPTSTR)&buffer,
  30                          0,
  31                          NULL);
  32
  33   if (result) {
  34     fprintf(stderr, "Win32 API error (%ld):\t%s", lasterr, buffer);
  35     LocalFree((HLOCAL)buffer);
  36   }
  37   else {
  38     fprintf(stderr, "Win32 API error (%ld)", lasterr);
  39   }
  40 }
  41
  42 int
  43 wine_main(int argc, char ** argv)
  44 {
  45   BOOL result;
  46   OSVERSIONINFO oiv;
  47
  48   /* FIXME: GetVersionEx() is a Win32 API call, so there should be a
  49      preliminary check to see if we're running bare-bones Windows3.xx
  50      (or even lower?). 19990916 mortene. */
  51
  52   oiv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
  53   result = GetVersionEx(&oiv);
  54
  55   if (result == FALSE) {
  56     show_last_error();
  57   }
  58   else {
  59     char * platforms[] = {
  60       "Win32s on Windows 3.1",
  61       "Win32 on Windows 95 or Windows 98",
  62       "Win32 on Windows NT/Windows 2000",
  63       "unknown!"
  64     };
  65     int platformval = 3;
  66
  67     switch (oiv.dwPlatformId) {
  68     case VER_PLATFORM_WIN32s: platformval = 0; break;
  69     case VER_PLATFORM_WIN32_WINDOWS: platformval = 1; break;
  70     case VER_PLATFORM_WIN32_NT: platformval = 2; break;
  71     }
  72
  73     fprintf(stdout,
  74             "MajorVersion: %ld\nMinorVersion: %ld\nBuildNumber: 0x%lx\n"
  75             "Platform: %s\nCSDVersion: '%s'\n",
  76             oiv.dwMajorVersion, oiv.dwMinorVersion, oiv.dwBuildNumber,
  77             platforms[platformval], oiv.szCSDVersion);
  78   }
  79
  80   return 0;
  81 }