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e9a7d4a1c8
Windows compilers define `_WIN32` automatically. Windows SDK headers or build env defines `WIN32`, or we have to take care of it. The agreement seems to be that `_WIN32` is the preferred practice here. Make the source code rely on that to detect we're building for Windows. Public `curl.h` was using `WIN32`, `__WIN32__` and `CURL_WIN32` for Windows detection, next to the official `_WIN32`. After this patch it only uses `_WIN32` for this. Also, make it stop defining `CURL_WIN32`. There is a slight chance these break compatibility with Windows compilers that fail to define `_WIN32`. I'm not aware of any obsolete or modern compiler affected, but in case there is one, one possible solution is to define this macro manually. grepping for `WIN32` remains useful to discover Windows-specific code. Also: - extend `checksrc` to ensure we're not using `WIN32` anymore. - apply minor formatting here and there. - delete unnecessary checks for `!MSDOS` when `_WIN32` is present. Co-authored-by: Jay Satiro Reviewed-by: Daniel Stenberg Closes #12376
320 lines
10 KiB
C
320 lines
10 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) 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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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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#if defined(_WIN32)
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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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/* 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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/* 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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* 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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* buildVersion [in] - The build version number. If 0, this parameter is
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* ignored.
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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 unsigned int buildVersion,
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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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#if defined(CURL_WINDOWS_APP)
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(void)buildVersion;
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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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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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case VERSION_LESS_THAN_EQUAL:
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matched = targetVersion <= fullVersion;
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break;
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case VERSION_EQUAL:
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matched = targetVersion == fullVersion;
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break;
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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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case VERSION_GREATER_THAN:
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matched = targetVersion > fullVersion;
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break;
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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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memset(&osver, 0, sizeof(osver));
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osver.dwOSVersionInfoSize = sizeof(osver);
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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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(buildVersion != 0 &&
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(osver.dwMajorVersion == majorVersion &&
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osver.dwMinorVersion == minorVersion &&
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osver.dwBuildNumber < buildVersion)))
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matched = TRUE;
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break;
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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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(osver.dwMajorVersion == majorVersion &&
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osver.dwMinorVersion == minorVersion &&
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(buildVersion == 0 ||
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osver.dwBuildNumber <= buildVersion)))
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matched = TRUE;
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break;
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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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(buildVersion == 0 ||
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osver.dwBuildNumber == buildVersion))
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matched = TRUE;
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break;
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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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(osver.dwMajorVersion == majorVersion &&
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osver.dwMinorVersion == minorVersion &&
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(buildVersion == 0 ||
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osver.dwBuildNumber >= buildVersion)))
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matched = TRUE;
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break;
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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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(buildVersion != 0 &&
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(osver.dwMajorVersion == majorVersion &&
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osver.dwMinorVersion == minorVersion &&
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osver.dwBuildNumber > buildVersion)))
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matched = TRUE;
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break;
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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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case PLATFORM_WINNT:
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if(osver.dwPlatformId != VER_PLATFORM_WIN32_NT)
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matched = FALSE;
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break;
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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 buildCondition;
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BYTE spMajorCondition;
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BYTE spMinorCondition;
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DWORD dwTypeMask = VER_MAJORVERSION | VER_MINORVERSION |
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VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR;
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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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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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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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buildCondition = 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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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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buildCondition = 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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case VERSION_EQUAL:
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majorCondition = VER_EQUAL;
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minorCondition = VER_EQUAL;
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buildCondition = 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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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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buildCondition = 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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case VERSION_GREATER_THAN:
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majorCondition = VER_GREATER;
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minorCondition = VER_GREATER;
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buildCondition = 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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default:
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return FALSE;
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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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osver.dwBuildNumber = buildVersion;
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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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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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dwTypeMask |= VER_PLATFORMID;
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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, dwTypeMask, cm);
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else
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matched = !!VerifyVersionInfoW((OSVERSIONINFOEXW *)&osver, dwTypeMask, cm);
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/* Compare the build number separately. VerifyVersionInfo normally compares
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major.minor in hierarchical order (eg 1.9 is less than 2.0) but does not
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do the same for build (eg 1.9 build 222 is not less than 2.0 build 111).
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Build comparison is only needed when build numbers are equal (eg 1.9 is
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always less than 2.0 so build comparison is not needed). */
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if(matched && buildVersion &&
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(condition == VERSION_EQUAL ||
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((condition == VERSION_GREATER_THAN_EQUAL ||
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condition == VERSION_LESS_THAN_EQUAL) &&
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curlx_verify_windows_version(majorVersion, minorVersion, 0,
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platform, VERSION_EQUAL)))) {
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cm = VerSetConditionMask(0, VER_BUILDNUMBER, buildCondition);
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dwTypeMask = VER_BUILDNUMBER;
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if(pRtlVerifyVersionInfo)
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matched = !pRtlVerifyVersionInfo(&osver, dwTypeMask, cm);
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else
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matched = !!VerifyVersionInfoW((OSVERSIONINFOEXW *)&osver,
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dwTypeMask, cm);
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}
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#endif
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return matched;
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}
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#endif /* _WIN32 */
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