VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/win/RTSystemQueryOSInfo-win.cpp@ 25409

Last change on this file since 25409 was 15954, checked in by vboxsync, 16 years ago

IPRT: Added Windows 2008 and Windows 7 OS detection.
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1/* $Id: RTSystemQueryOSInfo-win.cpp 15954 2009-01-14 19:46:17Z vboxsync $ */
2/** @file
3 * IPRT - RTSystemQueryOSInfo, generic stub.
4 */
5
6/*
7 * Copyright (C) 2008 Sun Microsystems, Inc.
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 *
26 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27 * Clara, CA 95054 USA or visit http://www.sun.com if you need
28 * additional information or have any questions.
29 */
30
31/*******************************************************************************
32* Header Files *
33*******************************************************************************/
34#include <Windows.h>
35#include <WinUser.h>
36
37#include <iprt/system.h>
38#include <iprt/assert.h>
39#include <iprt/string.h>
40#include <iprt/ctype.h>
41
42
43/*******************************************************************************
44* Structures and Typedefs *
45*******************************************************************************/
46/**
47 * Windows OS type as determined by rtSystemWinOSType().
48 */
49typedef enum RTWINOSTYPE
50{
51 kRTWinOSType_UNKNOWN = 0,
52 kRTWinOSType_9XFIRST = 1,
53 kRTWinOSType_95 = kRTWinOSType_9XFIRST,
54 kRTWinOSType_95SP1,
55 kRTWinOSType_95OSR2,
56 kRTWinOSType_98,
57 kRTWinOSType_98SP1,
58 kRTWinOSType_98SE,
59 kRTWinOSType_ME,
60 kRTWinOSType_9XLAST = 99,
61 kRTWinOSType_NTFIRST = 100,
62 kRTWinOSType_NT31 = kRTWinOSType_NTFIRST,
63 kRTWinOSType_NT351,
64 kRTWinOSType_NT4,
65 kRTWinOSType_2K,
66 kRTWinOSType_XP,
67 kRTWinOSType_2003,
68 kRTWinOSType_VISTA,
69 kRTWinOSType_2008,
70 kRTWinOSType_7,
71 kRTWinOSType_NT_UNKNOWN = 199,
72 kRTWinOSType_NT_LAST = kRTWinOSType_UNKNOWN
73} RTWINOSTYPE;
74
75/**
76 * These are the PRODUCT_* defines found in the Vista Platform SDK and returned
77 * by GetProductInfo().
78 *
79 * We define them ourselves because we don't necessarily have any Vista PSDK around.
80 */
81typedef enum RTWINPRODTYPE
82{
83 kRTWinProdType_UNDEFINED = 0x00000000, ///< An unknown product
84 kRTWinProdType_BUSINESS = 0x00000006, ///< Business Edition
85 kRTWinProdType_BUSINESS_N = 0x00000010, ///< Business Edition
86 kRTWinProdType_CLUSTER_SERVER = 0x00000012, ///< Cluster Server Edition
87 kRTWinProdType_DATACENTER_SERVER = 0x00000008, ///< Server Datacenter Edition (full installation)
88 kRTWinProdType_DATACENTER_SERVER_CORE = 0x0000000C, ///< Server Datacenter Edition (core installation)
89 kRTWinProdType_ENTERPRISE = 0x00000004, ///< Enterprise Edition
90 kRTWinProdType_ENTERPRISE_N = 0x0000001B, ///< Enterprise Edition
91 kRTWinProdType_ENTERPRISE_SERVER = 0x0000000A, ///< Server Enterprise Edition (full installation)
92 kRTWinProdType_ENTERPRISE_SERVER_CORE = 0x0000000E, ///< Server Enterprise Edition (core installation)
93 kRTWinProdType_ENTERPRISE_SERVER_IA64 = 0x0000000F, ///< Server Enterprise Edition for Itanium-based Systems
94 kRTWinProdType_HOME_BASIC = 0x00000002, ///< Home Basic Edition
95 kRTWinProdType_HOME_BASIC_N = 0x00000005, ///< Home Basic Edition
96 kRTWinProdType_HOME_PREMIUM = 0x00000003, ///< Home Premium Edition
97 kRTWinProdType_HOME_PREMIUM_N = 0x0000001A, ///< Home Premium Edition
98 kRTWinProdType_HOME_SERVER = 0x00000013, ///< Home Server Edition
99 kRTWinProdType_SERVER_FOR_SMALLBUSINESS = 0x00000018, ///< Server for Small Business Edition
100 kRTWinProdType_SMALLBUSINESS_SERVER = 0x00000009, ///< Small Business Server
101 kRTWinProdType_SMALLBUSINESS_SERVER_PREMIUM = 0x00000019, ///< Small Business Server Premium Edition
102 kRTWinProdType_STANDARD_SERVER = 0x00000007, ///< Server Standard Edition (full installation)
103 kRTWinProdType_STANDARD_SERVER_CORE = 0x0000000D, ///< Server Standard Edition (core installation)
104 kRTWinProdType_STARTER = 0x0000000B, ///< Starter Edition
105 kRTWinProdType_STORAGE_ENTERPRISE_SERVER = 0x00000017, ///< Storage Server Enterprise Edition
106 kRTWinProdType_STORAGE_EXPRESS_SERVER = 0x00000014, ///< Storage Server Express Edition
107 kRTWinProdType_STORAGE_STANDARD_SERVER = 0x00000015, ///< Storage Server Standard Edition
108 kRTWinProdType_STORAGE_WORKGROUP_SERVER = 0x00000016, ///< Storage Server Workgroup Edition
109 kRTWinProdType_ULTIMATE = 0x00000001, ///< Ultimate Edition
110 kRTWinProdType_ULTIMATE_N = 0x0000001C, ///< Ultimate Edition
111 kRTWinProdType_WEB_SERVER = 0x00000011, ///< Web Server Edition (full)
112 kRTWinProdType_WEB_SERVER_CORE = 0x0000001D ///< Web Server Edition (core)
113} RTWINPRODTYPE;
114
115
116/**
117 * Translates OSVERSIONINOFEX into a Windows OS type.
118 *
119 * @returns The Windows OS type.
120 * @param pOSInfoEx The OS info returned by Windows.
121 *
122 * @remarks This table has been assembled from Usenet postings, personal
123 * observations, and reading other people's code. Please feel
124 * free to add to it or correct it.
125 * <pre>
126 dwPlatFormID dwMajorVersion dwMinorVersion dwBuildNumber
12795 1 4 0 950
12895 SP1 1 4 0 >950 && <=1080
12995 OSR2 1 4 <10 >1080
13098 1 4 10 1998
13198 SP1 1 4 10 >1998 && <2183
13298 SE 1 4 10 >=2183
133ME 1 4 90 3000
134
135NT 3.51 2 3 51 1057
136NT 4 2 4 0 1381
1372000 2 5 0 2195
138XP 2 5 1 2600
1392003 2 5 2 3790
140Vista 2 6 0
141
142CE 1.0 3 1 0
143CE 2.0 3 2 0
144CE 2.1 3 2 1
145CE 3.0 3 3 0
146</pre>
147 */
148static RTWINOSTYPE rtSystemWinOSType(OSVERSIONINFOEX const *pOSInfoEx)
149{
150 RTWINOSTYPE enmVer = kRTWinOSType_UNKNOWN;
151 BYTE const bProductType = pOSInfoEx->wProductType;
152 DWORD const dwPlatformId = pOSInfoEx->dwPlatformId;
153 DWORD const dwMinorVersion = pOSInfoEx->dwMinorVersion;
154 DWORD const dwMajorVersion = pOSInfoEx->dwMajorVersion;
155 DWORD const dwBuildNumber = pOSInfoEx->dwBuildNumber & 0xFFFF; /* Win 9x needs this. */
156
157 if ( dwPlatformId == VER_PLATFORM_WIN32_WINDOWS
158 && dwMajorVersion == 4)
159 {
160 if ( dwMinorVersion < 10
161 && dwBuildNumber == 950)
162 enmVer = kRTWinOSType_95;
163 else if ( dwMinorVersion < 10
164 && dwBuildNumber > 950
165 && dwBuildNumber <= 1080)
166 enmVer = kRTWinOSType_95SP1;
167 else if ( dwMinorVersion < 10
168 && dwBuildNumber > 1080)
169 enmVer = kRTWinOSType_95OSR2;
170 else if ( dwMinorVersion == 10
171 && dwBuildNumber == 1998)
172 enmVer = kRTWinOSType_98;
173 else if ( dwMinorVersion == 10
174 && dwBuildNumber > 1998
175 && dwBuildNumber < 2183)
176 enmVer = kRTWinOSType_98SP1;
177 else if ( dwMinorVersion == 10
178 && dwBuildNumber >= 2183)
179 enmVer = kRTWinOSType_98SE;
180 else if (dwMinorVersion == 90)
181 enmVer = kRTWinOSType_ME;
182 }
183 else if (dwPlatformId == VER_PLATFORM_WIN32_NT)
184 {
185 if ( dwMajorVersion == 3
186 && dwMinorVersion == 51)
187 enmVer = kRTWinOSType_NT351;
188 else if ( dwMajorVersion == 4
189 && dwMinorVersion == 0)
190 enmVer = kRTWinOSType_NT4;
191 else if ( dwMajorVersion == 5
192 && dwMinorVersion == 0)
193 enmVer = kRTWinOSType_2K;
194 else if ( dwMajorVersion == 5
195 && dwMinorVersion == 1)
196 enmVer = kRTWinOSType_XP;
197 else if ( dwMajorVersion == 5
198 && dwMinorVersion == 2)
199 enmVer = kRTWinOSType_2003;
200 else if ( dwMajorVersion == 6
201 && dwMinorVersion == 0)
202 {
203 if (bProductType != VER_NT_WORKSTATION)
204 enmVer = kRTWinOSType_2008;
205 else
206 enmVer = kRTWinOSType_VISTA;
207 }
208 else if ( dwMajorVersion == 6
209 && dwMinorVersion == 1)
210 enmVer = kRTWinOSType_7;
211 else
212 enmVer = kRTWinOSType_NT_UNKNOWN;
213 }
214
215 return enmVer;
216}
217
218
219/**
220 * Wrapper around the GetProductInfo API.
221 *
222 * @returns The vista type.
223 */
224static RTWINPRODTYPE rtSystemWinGetProductInfo(DWORD dwOSMajorVersion, DWORD dwOSMinorVersion, DWORD dwSpMajorVersion, DWORD dwSpMinorVersion)
225{
226 BOOL (WINAPI *pfnGetProductInfo)(DWORD, DWORD, DWORD, DWORD, PDWORD);
227 pfnGetProductInfo = (BOOL (WINAPI *)(DWORD, DWORD, DWORD, DWORD, PDWORD))GetProcAddress(GetModuleHandle("KERNEL32.DLL"), "GetProductInfo");
228 if (pfnGetProductInfo)
229 {
230 DWORD dwProductType = kRTWinProdType_UNDEFINED;
231 if (pfnGetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, &dwProductType))
232 return (RTWINPRODTYPE)dwProductType;
233 }
234 return kRTWinProdType_UNDEFINED;
235}
236
237
238
239/**
240 * Appends the product type if available.
241 *
242 * @param pszTmp The buffer. Assumes it's big enough.
243 */
244static void rtSystemWinAppendProductType(char *pszTmp)
245{
246 RTWINPRODTYPE enmVistaType = rtSystemWinGetProductInfo(6, 0, 0, 0);
247 switch (enmVistaType)
248 {
249 case kRTWinProdType_BUSINESS: strcat(pszTmp, " Business Edition"); break;
250 case kRTWinProdType_BUSINESS_N: strcat(pszTmp, " Business Edition"); break;
251 case kRTWinProdType_CLUSTER_SERVER: strcat(pszTmp, " Cluster Server Edition"); break;
252 case kRTWinProdType_DATACENTER_SERVER: strcat(pszTmp, " Server Datacenter Edition (full installation)"); break;
253 case kRTWinProdType_DATACENTER_SERVER_CORE: strcat(pszTmp, " Server Datacenter Edition (core installation)"); break;
254 case kRTWinProdType_ENTERPRISE: strcat(pszTmp, " Enterprise Edition"); break;
255 case kRTWinProdType_ENTERPRISE_N: strcat(pszTmp, " Enterprise Edition"); break;
256 case kRTWinProdType_ENTERPRISE_SERVER: strcat(pszTmp, " Server Enterprise Edition (full installation)"); break;
257 case kRTWinProdType_ENTERPRISE_SERVER_CORE: strcat(pszTmp, " Server Enterprise Edition (core installation)"); break;
258 case kRTWinProdType_ENTERPRISE_SERVER_IA64: strcat(pszTmp, " Server Enterprise Edition for Itanium-based Systems"); break;
259 case kRTWinProdType_HOME_BASIC: strcat(pszTmp, " Home Basic Edition"); break;
260 case kRTWinProdType_HOME_BASIC_N: strcat(pszTmp, " Home Basic Edition"); break;
261 case kRTWinProdType_HOME_PREMIUM: strcat(pszTmp, " Home Premium Edition"); break;
262 case kRTWinProdType_HOME_PREMIUM_N: strcat(pszTmp, " Home Premium Edition"); break;
263 case kRTWinProdType_HOME_SERVER: strcat(pszTmp, " Home Server Edition"); break;
264 case kRTWinProdType_SERVER_FOR_SMALLBUSINESS: strcat(pszTmp, " Server for Small Business Edition"); break;
265 case kRTWinProdType_SMALLBUSINESS_SERVER: strcat(pszTmp, " Small Business Server"); break;
266 case kRTWinProdType_SMALLBUSINESS_SERVER_PREMIUM: strcat(pszTmp, " Small Business Server Premium Edition"); break;
267 case kRTWinProdType_STANDARD_SERVER: strcat(pszTmp, " Server Standard Edition (full installation)"); break;
268 case kRTWinProdType_STANDARD_SERVER_CORE: strcat(pszTmp, " Server Standard Edition (core installation)"); break;
269 case kRTWinProdType_STARTER: strcat(pszTmp, " Starter Edition"); break;
270 case kRTWinProdType_STORAGE_ENTERPRISE_SERVER: strcat(pszTmp, " Storage Server Enterprise Edition"); break;
271 case kRTWinProdType_STORAGE_EXPRESS_SERVER: strcat(pszTmp, " Storage Server Express Edition"); break;
272 case kRTWinProdType_STORAGE_STANDARD_SERVER: strcat(pszTmp, " Storage Server Standard Edition"); break;
273 case kRTWinProdType_STORAGE_WORKGROUP_SERVER: strcat(pszTmp, " Storage Server Workgroup Edition"); break;
274 case kRTWinProdType_ULTIMATE: strcat(pszTmp, " Ultimate Edition"); break;
275 case kRTWinProdType_ULTIMATE_N: strcat(pszTmp, " Ultimate Edition"); break;
276 case kRTWinProdType_WEB_SERVER: strcat(pszTmp, " Web Server Edition (full installation)"); break;
277 case kRTWinProdType_WEB_SERVER_CORE: strcat(pszTmp, " Web Server Edition (core installation)"); break;
278 case kRTWinProdType_UNDEFINED: break;
279 }
280}
281
282
283/**
284 * Services the RTSYSOSINFO_PRODUCT, RTSYSOSINFO_RELEASE
285 * and RTSYSOSINFO_SERVICE_PACK requests.
286 *
287 * @returns See RTSystemQueryOSInfo.
288 * @param enmInfo See RTSystemQueryOSInfo.
289 * @param pszInfo See RTSystemQueryOSInfo.
290 * @param cchInfo See RTSystemQueryOSInfo.
291 */
292static int rtSystemWinQueryOSVersion(RTSYSOSINFO enmInfo, char *pszInfo, size_t cchInfo)
293{
294 int rc;
295
296 /*
297 * Make sure it's terminated correctly in case of error.
298 */
299 *pszInfo = '\0';
300
301 /*
302 * Query the Windows version.
303 *
304 * ASSUMES OSVERSIONINFOEX starts with the exact same layout as OSVERSIONINFO (safe).
305 */
306 OSVERSIONINFOEX OSInfoEx;
307 memset(&OSInfoEx, '\0', sizeof(OSInfoEx));
308 OSInfoEx.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
309 if (!GetVersionEx((LPOSVERSIONINFO) &OSInfoEx))
310 {
311 DWORD err = GetLastError();
312 rc = RTErrConvertFromWin32(err);
313 AssertMsgFailedReturn(("err=%d\n", err), rc == VERR_BUFFER_OVERFLOW ? VERR_INTERNAL_ERROR : rc);
314 }
315
316 /* Get extended version info for 2000 and later. */
317 if ( OSInfoEx.dwPlatformId == VER_PLATFORM_WIN32_NT
318 && OSInfoEx.dwMajorVersion >= 5)
319 {
320 ZeroMemory(&OSInfoEx, sizeof(OSInfoEx));
321 OSInfoEx.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
322 if (!GetVersionEx((LPOSVERSIONINFO) &OSInfoEx))
323 {
324 DWORD err = GetLastError();
325 rc = RTErrConvertFromWin32(err);
326 AssertMsgFailedReturn(("err=%d\n", err), rc == VERR_BUFFER_OVERFLOW ? VERR_INTERNAL_ERROR : rc);
327 }
328 }
329
330 /*
331 * Service the request.
332 */
333 char szTmp[512];
334 szTmp[0] = '\0';
335 rc = VINF_SUCCESS;
336 switch (enmInfo)
337 {
338 /*
339 * The product name.
340 */
341 case RTSYSOSINFO_PRODUCT:
342 {
343 RTWINOSTYPE enmVer = rtSystemWinOSType(&OSInfoEx);
344 switch (enmVer)
345 {
346 case kRTWinOSType_95: strcpy(szTmp, "Windows 95"); break;
347 case kRTWinOSType_95SP1: strcpy(szTmp, "Windows 95 (Service Pack 1)"); break;
348 case kRTWinOSType_95OSR2: strcpy(szTmp, "Windows 95 (OSR 2)"); break;
349 case kRTWinOSType_98: strcpy(szTmp, "Windows 98"); break;
350 case kRTWinOSType_98SP1: strcpy(szTmp, "Windows 98 (Service Pack 1)"); break;
351 case kRTWinOSType_98SE: strcpy(szTmp, "Windows 98 (Second Edition)"); break;
352 case kRTWinOSType_ME: strcpy(szTmp, "Windows Me"); break;
353 case kRTWinOSType_NT351: strcpy(szTmp, "Windows NT 3.51"); break;
354 case kRTWinOSType_NT4: strcpy(szTmp, "Windows NT 4.0"); break;
355 case kRTWinOSType_2K: strcpy(szTmp, "Windows 2000"); break;
356 case kRTWinOSType_XP:
357 strcpy(szTmp, "Windows XP");
358 if (OSInfoEx.wSuiteMask & VER_SUITE_PERSONAL)
359 strcat(szTmp, " Home");
360 if ( OSInfoEx.wProductType == VER_NT_WORKSTATION
361 && !(OSInfoEx.wSuiteMask & VER_SUITE_PERSONAL))
362 strcat(szTmp, " Professional");
363#if 0 /** @todo fixme */
364 if (GetSystemMetrics(SM_MEDIACENTER))
365 strcat(szTmp, " Media Center");
366#endif
367 break;
368
369 case kRTWinOSType_2003: strcpy(szTmp, "Windows 2003"); break;
370 case kRTWinOSType_VISTA:
371 {
372 strcpy(szTmp, "Windows Vista");
373 rtSystemWinAppendProductType(szTmp);
374 break;
375 }
376 case kRTWinOSType_2008: strcpy(szTmp, "Windows 2008"); break;
377 case kRTWinOSType_7: strcpy(szTmp, "Windows 7"); break;
378
379 case kRTWinOSType_NT_UNKNOWN:
380 RTStrPrintf(szTmp, sizeof(szTmp), "Unknown NT v%u.%u", OSInfoEx.dwMajorVersion, OSInfoEx.dwMinorVersion);
381 break;
382
383 default:
384 AssertFailed();
385 case kRTWinOSType_UNKNOWN:
386 RTStrPrintf(szTmp, sizeof(szTmp), "Unknown %d v%u.%u", OSInfoEx.dwPlatformId, OSInfoEx.dwMajorVersion, OSInfoEx.dwMinorVersion);
387 break;
388 }
389 break;
390 }
391
392 /*
393 * The release.
394 */
395 case RTSYSOSINFO_RELEASE:
396 {
397 RTWINOSTYPE enmVer = rtSystemWinOSType(&OSInfoEx);
398 RTStrPrintf(szTmp, sizeof(szTmp), "%u.%u.%u", OSInfoEx.dwMajorVersion, OSInfoEx.dwMinorVersion, OSInfoEx.dwBuildNumber);
399 break;
400 }
401
402
403 /*
404 * Get the service pack.
405 */
406 case RTSYSOSINFO_SERVICE_PACK:
407 {
408 if (OSInfoEx.wServicePackMajor)
409 {
410 if (OSInfoEx.wServicePackMinor)
411 RTStrPrintf(szTmp, sizeof(szTmp), "%u.%u", (unsigned)OSInfoEx.wServicePackMajor, (unsigned)OSInfoEx.wServicePackMinor);
412 else
413 RTStrPrintf(szTmp, sizeof(szTmp), "%u", (unsigned)OSInfoEx.wServicePackMajor);
414 }
415 else if (OSInfoEx.szCSDVersion[0])
416 {
417 /* just copy the entire string. */
418 memcpy(szTmp, OSInfoEx.szCSDVersion, sizeof(OSInfoEx.szCSDVersion));
419 szTmp[sizeof(OSInfoEx.szCSDVersion)] = '\0';
420 AssertCompile(sizeof(szTmp) > sizeof(OSInfoEx.szCSDVersion));
421 }
422 else
423 {
424 RTWINOSTYPE enmVer = rtSystemWinOSType(&OSInfoEx);
425 switch (enmVer)
426 {
427 case kRTWinOSType_95SP1: strcpy(szTmp, "1"); break;
428 case kRTWinOSType_98SP1: strcpy(szTmp, "1"); break;
429 default:
430 break;
431 }
432 }
433 break;
434 }
435
436 default:
437 AssertFatalFailed();
438 }
439
440 /*
441 * Copy the result to the return buffer.
442 */
443 size_t cchTmp = strlen(szTmp);
444 Assert(cchTmp < sizeof(szTmp));
445 if (cchTmp < cchInfo)
446 memcpy(pszInfo, szTmp, cchTmp + 1);
447 else
448 {
449 memcpy(pszInfo, szTmp, cchInfo - 1);
450 pszInfo[cchInfo - 1] = '\0';
451 if (RT_SUCCESS(rc))
452 rc = VERR_BUFFER_OVERFLOW;
453 }
454 return VINF_SUCCESS;
455}
456
457
458
459RTDECL(int) RTSystemQueryOSInfo(RTSYSOSINFO enmInfo, char *pszInfo, size_t cchInfo)
460{
461 /*
462 * Quick validation.
463 */
464 AssertReturn(enmInfo > RTSYSOSINFO_INVALID && enmInfo < RTSYSOSINFO_END, VERR_INVALID_PARAMETER);
465 AssertPtrReturn(pszInfo, VERR_INVALID_POINTER);
466 if (!cchInfo)
467 return VERR_BUFFER_OVERFLOW;
468
469
470 /*
471 * Handle the request.
472 */
473 switch (enmInfo)
474 {
475 case RTSYSOSINFO_PRODUCT:
476 case RTSYSOSINFO_RELEASE:
477 case RTSYSOSINFO_SERVICE_PACK:
478 return rtSystemWinQueryOSVersion(enmInfo, pszInfo, cchInfo);
479
480 case RTSYSOSINFO_VERSION:
481 default:
482 *pszInfo = '\0';
483 return VERR_NOT_SUPPORTED;
484 }
485}
486
487
488
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