1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qoperatingsystemversion_win_p.h"
#include "qoperatingsystemversion_p.h"
#include <qt_windows.h>
#include <qbytearray.h>
QT_BEGIN_NAMESPACE
#ifdef Q_OS_WINRT
static inline HMODULE moduleHandleForFunction(LPCVOID address)
{
// This is a widely used, decades-old technique for retrieving the handle
// of a module and is effectively equivalent to GetModuleHandleEx
// (which is unavailable on WinRT)
MEMORY_BASIC_INFORMATION mbi = { 0, 0, 0, 0, 0, 0, 0 };
if (VirtualQuery(address, &mbi, sizeof(mbi)) == 0)
return 0;
return reinterpret_cast<HMODULE>(mbi.AllocationBase);
}
#endif
static inline OSVERSIONINFOEX determineWinOsVersion()
{
OSVERSIONINFOEX result = { sizeof(OSVERSIONINFOEX), 0, 0, 0, 0, {'\0'}, 0, 0, 0, 0, 0};
#define GetProcAddressA GetProcAddress
// GetModuleHandle is not supported in WinRT and linking to it at load time
// will not pass the Windows App Certification Kit... but it exists and is functional,
// so use some unusual but widely used techniques to get a pointer to it
#ifdef Q_OS_WINRT
// 1. Get HMODULE of kernel32.dll, using the address of some function exported by that DLL
HMODULE kernelModule = moduleHandleForFunction(reinterpret_cast<LPCVOID>(VirtualQuery));
if (Q_UNLIKELY(!kernelModule))
return result;
// 2. Get pointer to GetModuleHandle so we can then load other arbitrary modules (DLLs)
typedef HMODULE(WINAPI *GetModuleHandleFunction)(LPCWSTR);
GetModuleHandleFunction pGetModuleHandle = reinterpret_cast<GetModuleHandleFunction>(
GetProcAddressA(kernelModule, "GetModuleHandleW"));
if (Q_UNLIKELY(!pGetModuleHandle))
return result;
#else
#define pGetModuleHandle GetModuleHandleW
#endif
HMODULE ntdll = pGetModuleHandle(L"ntdll.dll");
if (Q_UNLIKELY(!ntdll))
return result;
// NTSTATUS is not defined on WinRT
typedef LONG NTSTATUS;
typedef NTSTATUS (NTAPI *RtlGetVersionFunction)(LPOSVERSIONINFO);
// RtlGetVersion is documented public API but we must load it dynamically
// because linking to it at load time will not pass the Windows App Certification Kit
// https://msdn.microsoft.com/en-us/library/windows/hardware/ff561910.aspx
RtlGetVersionFunction pRtlGetVersion = reinterpret_cast<RtlGetVersionFunction>(
reinterpret_cast<QFunctionPointer>(GetProcAddressA(ntdll, "RtlGetVersion")));
if (Q_UNLIKELY(!pRtlGetVersion))
return result;
// GetVersionEx() has been deprecated in Windows 8.1 and will return
// only Windows 8 from that version on, so use the kernel API function.
pRtlGetVersion(reinterpret_cast<LPOSVERSIONINFO>(&result)); // always returns STATUS_SUCCESS
return result;
}
OSVERSIONINFOEX qWindowsVersionInfo()
{
OSVERSIONINFOEX realResult = determineWinOsVersion();
#ifdef QT_DEBUG
{
if (Q_UNLIKELY(qEnvironmentVariableIsSet("QT_WINVER_OVERRIDE"))) {
OSVERSIONINFOEX result = realResult;
result.dwMajorVersion = 0;
result.dwMinorVersion = 0;
// Erase any build number and service pack information
result.dwBuildNumber = 0;
result.szCSDVersion[0] = L'\0';
result.wServicePackMajor = 0;
result.wServicePackMinor = 0;
const QByteArray winVerOverride = qgetenv("QT_WINVER_OVERRIDE");
if (winVerOverride == "WINDOWS7" || winVerOverride == "2008_R2") {
result.dwMajorVersion = 6;
result.dwMinorVersion = 1;
} else if (winVerOverride == "WINDOWS8" || winVerOverride == "2012") {
result.dwMajorVersion = 6;
result.dwMinorVersion = 2;
} else if (winVerOverride == "WINDOWS8_1" || winVerOverride == "2012_R2") {
result.dwMajorVersion = 6;
result.dwMinorVersion = 3;
} else if (winVerOverride == "WINDOWS10" || winVerOverride == "2016") {
result.dwMajorVersion = 10;
} else {
return realResult;
}
if (winVerOverride == "2008_R2"
|| winVerOverride == "2012"
|| winVerOverride == "2012_R2"
|| winVerOverride == "2016") {
// If the current host OS is a domain controller and the override OS
// is also a server type OS, preserve that information
if (result.wProductType == VER_NT_WORKSTATION)
result.wProductType = VER_NT_SERVER;
} else {
// Any other OS must be a workstation OS type
result.wProductType = VER_NT_WORKSTATION;
}
}
}
#endif
return realResult;
}
QOperatingSystemVersion QOperatingSystemVersion::current()
{
QOperatingSystemVersion v;
v.m_os = currentType();
const OSVERSIONINFOEX osv = qWindowsVersionInfo();
v.m_major = osv.dwMajorVersion;
v.m_minor = osv.dwMinorVersion;
v.m_micro = osv.dwBuildNumber;
return v;
}
QT_END_NAMESPACE
|
