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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/windows_version.h"
#include <windows.h>
#include "base/logging.h"
namespace base {
namespace win {
Version GetVersion() {
static bool checked_version = false;
static Version win_version = VERSION_PRE_2000;
if (!checked_version) {
OSVERSIONINFOEX version_info;
version_info.dwOSVersionInfoSize = sizeof version_info;
GetVersionEx(reinterpret_cast<OSVERSIONINFO*>(&version_info));
if (version_info.dwMajorVersion == 5) {
switch (version_info.dwMinorVersion) {
case 0:
win_version = VERSION_2000;
break;
case 1:
win_version = VERSION_XP;
break;
case 2:
default:
win_version = VERSION_SERVER_2003;
break;
}
} else if (version_info.dwMajorVersion == 6) {
if (version_info.wProductType != VER_NT_WORKSTATION) {
// 2008 is 6.0, and 2008 R2 is 6.1.
win_version = VERSION_2008;
} else {
if (version_info.dwMinorVersion == 0) {
win_version = VERSION_VISTA;
} else {
win_version = VERSION_WIN7;
}
}
} else if (version_info.dwMajorVersion > 6) {
win_version = VERSION_WIN7;
}
checked_version = true;
}
return win_version;
}
void GetServicePackLevel(int* major, int* minor) {
DCHECK(major && minor);
static bool checked_version = false;
static int service_pack_major = -1;
static int service_pack_minor = -1;
if (!checked_version) {
OSVERSIONINFOEX version_info = {0};
version_info.dwOSVersionInfoSize = sizeof(version_info);
GetVersionEx(reinterpret_cast<OSVERSIONINFOW*>(&version_info));
service_pack_major = version_info.wServicePackMajor;
service_pack_minor = version_info.wServicePackMinor;
checked_version = true;
}
*major = service_pack_major;
*minor = service_pack_minor;
}
} // namespace win
} // namespace base
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