268 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			268 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C
		
	
	
	
| /***************************************************************************
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|  *                                  _   _ ____  _
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|  *  Project                     ___| | | |  _ \| |
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|  *                             / __| | | | |_) | |
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|  *                            | (__| |_| |  _ <| |___
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|  *                             \___|\___/|_| \_\_____|
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|  *
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|  * Copyright (C) 2016 - 2021, Steve Holme, <steve_holme@hotmail.com>.
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|  *
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|  * This software is licensed as described in the file COPYING, which
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|  * you should have received as part of this distribution. The terms
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|  * are also available at https://curl.se/docs/copyright.html.
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|  *
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|  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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|  * copies of the Software, and permit persons to whom the Software is
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|  * furnished to do so, under the terms of the COPYING file.
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|  *
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|  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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|  * KIND, either express or implied.
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|  *
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|  ***************************************************************************/
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| 
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| #include "curl_setup.h"
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| 
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| #if defined(WIN32)
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| 
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| #include <curl/curl.h>
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| #include "version_win32.h"
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| #include "warnless.h"
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| 
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| /* The last #include files should be: */
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| #include "curl_memory.h"
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| #include "memdebug.h"
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| 
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| /* This Unicode version struct works for VerifyVersionInfoW (OSVERSIONINFOEXW)
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|    and RtlVerifyVersionInfo (RTLOSVERSIONINFOEXW) */
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| struct OUR_OSVERSIONINFOEXW {
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|   ULONG  dwOSVersionInfoSize;
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|   ULONG  dwMajorVersion;
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|   ULONG  dwMinorVersion;
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|   ULONG  dwBuildNumber;
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|   ULONG  dwPlatformId;
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|   WCHAR  szCSDVersion[128];
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|   USHORT wServicePackMajor;
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|   USHORT wServicePackMinor;
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|   USHORT wSuiteMask;
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|   UCHAR  wProductType;
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|   UCHAR  wReserved;
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| };
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| 
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| /*
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|  * curlx_verify_windows_version()
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|  *
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|  * This is used to verify if we are running on a specific windows version.
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|  *
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|  * Parameters:
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|  *
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|  * majorVersion [in] - The major version number.
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|  * minorVersion [in] - The minor version number.
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|  * platform     [in] - The optional platform identifier.
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|  * condition    [in] - The test condition used to specifier whether we are
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|  *                     checking a version less then, equal to or greater than
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|  *                     what is specified in the major and minor version
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|  *                     numbers.
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|  *
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|  * Returns TRUE if matched; otherwise FALSE.
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|  */
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| bool curlx_verify_windows_version(const unsigned int majorVersion,
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|                                   const unsigned int minorVersion,
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|                                   const PlatformIdentifier platform,
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|                                   const VersionCondition condition)
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| {
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|   bool matched = FALSE;
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| 
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| #if defined(CURL_WINDOWS_APP)
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|   /* We have no way to determine the Windows version from Windows apps,
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|      so let's assume we're running on the target Windows version. */
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|   const WORD fullVersion = MAKEWORD(minorVersion, majorVersion);
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|   const WORD targetVersion = (WORD)_WIN32_WINNT;
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| 
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|   switch(condition) {
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|   case VERSION_LESS_THAN:
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|     matched = targetVersion < fullVersion;
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|     break;
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| 
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|   case VERSION_LESS_THAN_EQUAL:
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|     matched = targetVersion <= fullVersion;
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|     break;
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| 
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|   case VERSION_EQUAL:
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|     matched = targetVersion == fullVersion;
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|     break;
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| 
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|   case VERSION_GREATER_THAN_EQUAL:
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|     matched = targetVersion >= fullVersion;
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|     break;
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| 
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|   case VERSION_GREATER_THAN:
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|     matched = targetVersion > fullVersion;
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|     break;
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|   }
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| 
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|   if(matched && (platform == PLATFORM_WINDOWS)) {
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|     /* we're always running on PLATFORM_WINNT */
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|     matched = FALSE;
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|   }
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| #elif !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_WIN2K) || \
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|     (_WIN32_WINNT < _WIN32_WINNT_WIN2K)
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|   OSVERSIONINFO osver;
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| 
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|   memset(&osver, 0, sizeof(osver));
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|   osver.dwOSVersionInfoSize = sizeof(osver);
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| 
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|   /* Find out Windows version */
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|   if(GetVersionEx(&osver)) {
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|     /* Verify the Operating System version number */
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|     switch(condition) {
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|     case VERSION_LESS_THAN:
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|       if(osver.dwMajorVersion < majorVersion ||
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|         (osver.dwMajorVersion == majorVersion &&
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|          osver.dwMinorVersion < minorVersion))
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|         matched = TRUE;
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|       break;
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| 
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|     case VERSION_LESS_THAN_EQUAL:
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|       if(osver.dwMajorVersion < majorVersion ||
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|         (osver.dwMajorVersion == majorVersion &&
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|          osver.dwMinorVersion <= minorVersion))
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|         matched = TRUE;
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|       break;
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| 
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|     case VERSION_EQUAL:
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|       if(osver.dwMajorVersion == majorVersion &&
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|          osver.dwMinorVersion == minorVersion)
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|         matched = TRUE;
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|       break;
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| 
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|     case VERSION_GREATER_THAN_EQUAL:
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|       if(osver.dwMajorVersion > majorVersion ||
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|         (osver.dwMajorVersion == majorVersion &&
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|          osver.dwMinorVersion >= minorVersion))
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|         matched = TRUE;
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|       break;
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| 
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|     case VERSION_GREATER_THAN:
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|       if(osver.dwMajorVersion > majorVersion ||
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|         (osver.dwMajorVersion == majorVersion &&
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|          osver.dwMinorVersion > minorVersion))
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|         matched = TRUE;
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|       break;
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|     }
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| 
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|     /* Verify the platform identifier (if necessary) */
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|     if(matched) {
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|       switch(platform) {
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|       case PLATFORM_WINDOWS:
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|         if(osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS)
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|           matched = FALSE;
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|         break;
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| 
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|       case PLATFORM_WINNT:
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|         if(osver.dwPlatformId != VER_PLATFORM_WIN32_NT)
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|           matched = FALSE;
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| 
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|       default: /* like platform == PLATFORM_DONT_CARE */
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|         break;
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|       }
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|     }
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|   }
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| #else
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|   ULONGLONG cm = 0;
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|   struct OUR_OSVERSIONINFOEXW osver;
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|   BYTE majorCondition;
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|   BYTE minorCondition;
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|   BYTE spMajorCondition;
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|   BYTE spMinorCondition;
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| 
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|   typedef LONG (APIENTRY *RTLVERIFYVERSIONINFO_FN)
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|     (struct OUR_OSVERSIONINFOEXW *, ULONG, ULONGLONG);
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|   static RTLVERIFYVERSIONINFO_FN pRtlVerifyVersionInfo;
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|   static bool onetime = true; /* safe because first call is during init */
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| 
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|   if(onetime) {
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|     pRtlVerifyVersionInfo = CURLX_FUNCTION_CAST(RTLVERIFYVERSIONINFO_FN,
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|       (GetProcAddress(GetModuleHandleA("ntdll"), "RtlVerifyVersionInfo")));
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|     onetime = false;
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|   }
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| 
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|   switch(condition) {
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|   case VERSION_LESS_THAN:
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|     majorCondition = VER_LESS;
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|     minorCondition = VER_LESS;
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|     spMajorCondition = VER_LESS_EQUAL;
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|     spMinorCondition = VER_LESS_EQUAL;
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|     break;
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| 
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|   case VERSION_LESS_THAN_EQUAL:
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|     majorCondition = VER_LESS_EQUAL;
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|     minorCondition = VER_LESS_EQUAL;
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|     spMajorCondition = VER_LESS_EQUAL;
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|     spMinorCondition = VER_LESS_EQUAL;
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|     break;
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| 
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|   case VERSION_EQUAL:
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|     majorCondition = VER_EQUAL;
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|     minorCondition = VER_EQUAL;
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|     spMajorCondition = VER_GREATER_EQUAL;
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|     spMinorCondition = VER_GREATER_EQUAL;
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|     break;
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| 
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|   case VERSION_GREATER_THAN_EQUAL:
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|     majorCondition = VER_GREATER_EQUAL;
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|     minorCondition = VER_GREATER_EQUAL;
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|     spMajorCondition = VER_GREATER_EQUAL;
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|     spMinorCondition = VER_GREATER_EQUAL;
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|     break;
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| 
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|   case VERSION_GREATER_THAN:
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|     majorCondition = VER_GREATER;
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|     minorCondition = VER_GREATER;
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|     spMajorCondition = VER_GREATER_EQUAL;
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|     spMinorCondition = VER_GREATER_EQUAL;
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|     break;
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| 
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|   default:
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|     return FALSE;
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|   }
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| 
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|   memset(&osver, 0, sizeof(osver));
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|   osver.dwOSVersionInfoSize = sizeof(osver);
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|   osver.dwMajorVersion = majorVersion;
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|   osver.dwMinorVersion = minorVersion;
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|   if(platform == PLATFORM_WINDOWS)
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|     osver.dwPlatformId = VER_PLATFORM_WIN32_WINDOWS;
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|   else if(platform == PLATFORM_WINNT)
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|     osver.dwPlatformId = VER_PLATFORM_WIN32_NT;
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| 
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|   cm = VerSetConditionMask(cm, VER_MAJORVERSION, majorCondition);
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|   cm = VerSetConditionMask(cm, VER_MINORVERSION, minorCondition);
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|   cm = VerSetConditionMask(cm, VER_SERVICEPACKMAJOR, spMajorCondition);
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|   cm = VerSetConditionMask(cm, VER_SERVICEPACKMINOR, spMinorCondition);
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|   if(platform != PLATFORM_DONT_CARE)
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|     cm = VerSetConditionMask(cm, VER_PLATFORMID, VER_EQUAL);
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| 
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|   /* Later versions of Windows have version functions that may not return the
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|      real version of Windows unless the application is so manifested. We prefer
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|      the real version always, so we use the Rtl variant of the function when
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|      possible. Note though the function signatures have underlying fundamental
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|      types that are the same, the return values are different. */
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|   if(pRtlVerifyVersionInfo) {
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|     matched = !pRtlVerifyVersionInfo(&osver,
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|       (VER_MAJORVERSION | VER_MINORVERSION |
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|        VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR),
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|       cm);
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|   }
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|   else {
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|     matched = !!VerifyVersionInfoW((OSVERSIONINFOEXW *)&osver,
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|       (VER_MAJORVERSION | VER_MINORVERSION |
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|        VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR),
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|       cm);
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|   }
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| #endif
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| 
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|   return matched;
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| }
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| 
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| #endif /* WIN32 */
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