diff options
Diffstat (limited to 'version/version.c')
| -rw-r--r-- | version/version.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/version/version.c b/version/version.c new file mode 100644 index 0000000..0338091 --- /dev/null +++ b/version/version.c @@ -0,0 +1,249 @@ +/*++ + + >>> This code is released to the public domain. No warranty + whatsoever is provided. Use it at your own risk. <<< + +Module Name: + + version.c + +Abstract: + + Determine the Windows version number running and set the + errorlevel appropriately. Intended for use with batch scripts. + +Author: + + Scott Gasch ([email protected]) 22 Aug 2002 + +Revision History: + +--*/ + +#include <stdlib.h> +#include <stdio.h> +#include <windows.h> + +// +// This code _should_ run on win9x/ME or any version of NT. Note: I have +// not personally tested it on 9x/ME though. It prints out a message on +// stdout about which version of the windows operating system is running +// and sets the errorlevel to one of the values below accordingly. Might +// be useful in your CMD/BAT script... +// +#define EXIT_WIN95 (1) +#define EXIT_WIN98 (2) +#define EXIT_WINME (3) +#define EXIT_CONSUMER_OTHER (4) +#define EXIT_NT351 (5) +#define EXIT_NT3OTHER (6) +#define EXIT_NT4 (7) +#define EXIT_NT4OTHER (8) +#define EXIT_WIN2K (9) +#define EXIT_WINXP (10) +#define EXIT_WIN_SERVER_2003 (11) +#define EXIT_NT5OTHER (12) +#define EXIT_VISTA (13) +#define EXIT_UNKNOWN (14) + +CHAR *g_szWindowsNames[] = +{ + "Not Used", + "Windows95", + "Windows98", + "WindowsME", + "Unknown Consumer Windows Release", + "Windows NT", + "Unknown Windows NT", + "Windows NT", + "Unknown Windows NT", + "Windows 2000", + "WindowsXP", + "Windows Server 2003", + "Unknown Windows NT", + "Longhorn Prerelease", + "Unknown Operating System" +}; + +typedef BOOL (*FUNCTION_PTR)(OSVERSIONINFO *); + + +BOOL +TryWinNT(DWORD *pdwMajor, DWORD *pdwMinor, DWORD *pdwPlatform) +/*++ + +Routine description: + + GetVersionEx is not present on downlevel versions of Windows. + Deal with this by using LoadLibrary/GetProcAddress. + +Parameters: + + DWORD *pdwMajor, + DWORD *pdwMinor, + DWORD *pdwPlatform + +Return value: + + BOOL + +--*/ +{ + FUNCTION_PTR p; + BOOL fRet = FALSE; + HMODULE h = NULL; + OSVERSIONINFOEXA osvi; + + h = LoadLibraryA("kernel32.dll"); + if (NULL == h) + { + fprintf(stderr, "Failed to load kernel32.dll, error=%u.\n", + GetLastError()); + goto end; + } + + p = (FUNCTION_PTR)GetProcAddress(h, "GetVersionExA"); + if (NULL == p) + { + fprintf(stderr, "GetProcAddress for GetVersionEx failed, error=%u.\n", + GetLastError()); + goto end; + } + + ZeroMemory(&osvi, sizeof(osvi)); + osvi.dwOSVersionInfoSize = sizeof(osvi); + fRet = (*p)((OSVERSIONINFO *)&osvi); + if (FALSE == fRet) + { + fprintf(stderr, "GetVersionEx failed, error=%u.\n", GetLastError()); + goto end; + } + *pdwMajor = osvi.dwMajorVersion; + *pdwMinor = osvi.dwMinorVersion; + *pdwPlatform = osvi.dwPlatformId; + + end: + if (NULL != h) + { + FreeLibrary(h); + } + + return(fRet); +} + + +int __cdecl +main(void) +/*++ + +Routine description: + + Program entry point. + +Parameters: + + void + +Return value: + + int __cdecl + +--*/ +{ + DWORD dwMajor, dwMinor, dwPlatform; + DWORD dwVersion; + int iRet = EXIT_UNKNOWN; + + // + // This call should be available on all versions of Windows + // + dwVersion = GetVersion(); + if ((dwVersion & 0x80000000) || + (FALSE == TryWinNT(&dwMajor, &dwMinor, &dwPlatform))) + { + dwMajor = (DWORD)(LOBYTE(LOWORD(dwVersion))); + dwMinor = (DWORD)(HIBYTE(LOWORD(dwVersion))); + dwPlatform = VER_PLATFORM_WIN32_WINDOWS; + } + + // + // Parse results + // + if (dwPlatform == VER_PLATFORM_WIN32_NT) + { + switch(dwMajor) + { + case 3: + iRet = EXIT_NT3OTHER; + if (51 == dwMinor) + { + iRet = EXIT_NT351; + } + goto end; + + case 4: + iRet = EXIT_NT4OTHER; + if (0 == dwMinor) + { + iRet = EXIT_NT4; + } + goto end; + + case 5: + iRet = EXIT_NT5OTHER; + if (0 == dwMinor) + { + iRet = EXIT_WIN2K; + } + else if (1 == dwMinor) + { + iRet = EXIT_WINXP; + } + else if (2 == dwMinor) + { + iRet = EXIT_WIN_SERVER_2003; + } + goto end; + + case 6: + iRet = EXIT_VISTA; + goto end; + + default: + goto end; + } + } + else if (dwPlatform == VER_PLATFORM_WIN32_WINDOWS) + { + switch(dwMajor) + { + case 4: + iRet = EXIT_CONSUMER_OTHER; + if (0 == dwMinor) + { + iRet = EXIT_WIN95; + } + else if (10 == dwMinor) + { + iRet = EXIT_WIN98; + } + else if (90 == dwMinor) + { + iRet = EXIT_WINME; + } + goto end; + + default: + goto end; + } + } + + end: + printf("%s %u.%u -- errorlevel is %d\n", + g_szWindowsNames[iRet], + dwMajor, + dwMinor, + iRet); + exit(iRet); +} + |