JDK14/Java14源码在线阅读
/*
* Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* Access APIs for Windows Vista and above */
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0601
#endif
#include "jni.h"
#include "jni_util.h"
#include <windows.h>
#include <shlobj.h>
#include <objidl.h>
#include <locale.h>
#include <sys/types.h>
#include <sys/timeb.h>
#include <tchar.h>
#include <stdlib.h>
#include <Wincon.h>
#include "locale_str.h"
#include "java_props.h"
#ifndef VER_PLATFORM_WIN32_WINDOWS
#define VER_PLATFORM_WIN32_WINDOWS 1
#endif
#ifndef PROCESSOR_ARCHITECTURE_AMD64
#define PROCESSOR_ARCHITECTURE_AMD64 9
#endif
typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);
static boolean SetupI18nProps(LCID lcid, char** language, char** script, char** country,
char** variant, char** encoding);
#define PROPSIZE 9 // eight-letter + null terminator
#define SNAMESIZE 86 // max number of chars for LOCALE_SNAME is 85
static char *
getEncodingInternal(LCID lcid)
{
int codepage;
char * ret = malloc(16);
if (ret == NULL) {
return NULL;
}
if (GetLocaleInfo(lcid,
LOCALE_IDEFAULTANSICODEPAGE,
ret+2, 14) == 0) {
codepage = 1252;
} else {
codepage = atoi(ret+2);
}
switch (codepage) {
case 0:
strcpy(ret, "UTF-8");
break;
case 874: /* 9:Thai */
case 932: /* 10:Japanese */
case 949: /* 12:Korean Extended Wansung */
case 950: /* 13:Chinese (Taiwan, Hongkong, Macau) */
case 1361: /* 15:Korean Johab */
ret[0] = 'M';
ret[1] = 'S';
break;
case 936:
strcpy(ret, "GBK");
break;
case 54936:
strcpy(ret, "GB18030");
break;
default:
ret[0] = 'C';
ret[1] = 'p';
break;
}
//Traditional Chinese Windows should use MS950_HKSCS_XP as the
//default encoding, if HKSCS patch has been installed.
// "old" MS950 0xfa41 -> u+e001
// "new" MS950 0xfa41 -> u+92db
if (strcmp(ret, "MS950") == 0) {
TCHAR mbChar[2] = {(char)0xfa, (char)0x41};
WCHAR unicodeChar;
MultiByteToWideChar(CP_ACP, 0, mbChar, 2, &unicodeChar, 1);
if (unicodeChar == 0x92db) {
strcpy(ret, "MS950_HKSCS_XP");
}
} else {
//SimpChinese Windows should use GB18030 as the default
//encoding, if gb18030 patch has been installed (on windows
//2000/XP, (1)Codepage 54936 will be available
//(2)simsun18030.ttc will exist under system fonts dir )
if (strcmp(ret, "GBK") == 0 && IsValidCodePage(54936)) {
char systemPath[MAX_PATH + 1];
char* gb18030Font = "\\FONTS\\SimSun18030.ttc";
FILE *f = NULL;
if (GetWindowsDirectory(systemPath, MAX_PATH + 1) != 0 &&
strlen(systemPath) + strlen(gb18030Font) < MAX_PATH + 1) {
strcat(systemPath, "\\FONTS\\SimSun18030.ttc");
if ((f = fopen(systemPath, "r")) != NULL) {
fclose(f);
strcpy(ret, "GB18030");
}
}
}
}
return ret;
}
static char* getConsoleEncoding()
{
char* buf = malloc(16);
int cp;
if (buf == NULL) {
return NULL;
}
cp = GetConsoleCP();
if (cp >= 874 && cp <= 950)
sprintf(buf, "ms%d", cp);
else
sprintf(buf, "cp%d", cp);
return buf;
}
// Exported entries for AWT
DllExport const char *
getEncodingFromLangID(LANGID langID)
{
return getEncodingInternal(MAKELCID(langID, SORT_DEFAULT));
}
// Returns BCP47 Language Tag
DllExport const char *
getJavaIDFromLangID(LANGID langID)
{
char * elems[5]; // lang, script, ctry, variant, encoding
char * ret;
int index;
ret = malloc(SNAMESIZE);
if (ret == NULL) {
return NULL;
}
for (index = 0; index < 5; index++) {
elems[index] = NULL;
}
if (SetupI18nProps(MAKELCID(langID, SORT_DEFAULT),
&(elems[0]), &(elems[1]), &(elems[2]), &(elems[3]), &(elems[4]))) {
// there always is the "language" tag
strcpy(ret, elems[0]);
// append other elements, if any
for (index = 1; index < 4; index++) {
if ((elems[index])[0] != '\0') {
strcat(ret, "-");
strcat(ret, elems[index]);
}
}
} else {
free(ret);
ret = NULL;
}
for (index = 0; index < 5; index++) {
if (elems[index] != NULL) {
free(elems[index]);
}
}
return ret;
}
/*
* Code to figure out the user's home directory using shell32.dll
*/
WCHAR*
getHomeFromShell32()
{
/*
* Note that we don't free the memory allocated
* by getHomeFromShell32.
*/
static WCHAR *u_path = NULL;
if (u_path == NULL) {
HRESULT hr;
/*
* SHELL32 DLL is delay load DLL and we can use the trick with
* __try/__except block.
*/
__try {
/*
* For Windows Vista and later (or patched MS OS) we need to use
* [SHGetKnownFolderPath] call to avoid MAX_PATH length limitation.
* Shell32.dll (version 6.0.6000 or later)
*/
hr = SHGetKnownFolderPath(&FOLDERID_Profile, KF_FLAG_DONT_VERIFY, NULL, &u_path);
} __except(EXCEPTION_EXECUTE_HANDLER) {
/* Exception: no [SHGetKnownFolderPath] entry */
hr = E_FAIL;
}
if (FAILED(hr)) {
WCHAR path[MAX_PATH+1];
/* fallback solution for WinXP and Windows 2000 */
hr = SHGetFolderPathW(NULL, CSIDL_FLAG_DONT_VERIFY | CSIDL_PROFILE, NULL, SHGFP_TYPE_CURRENT, path);
if (FAILED(hr)) {
/* we can't find the shell folder. */
u_path = NULL;
} else {
/* Just to be sure about the path length until Windows Vista approach.
* [S_FALSE] could not be returned due to [CSIDL_FLAG_DONT_VERIFY] flag and UNICODE version.
*/
path[MAX_PATH] = 0;
u_path = _wcsdup(path);
}
}
}
return u_path;
}
static boolean
haveMMX(void)
{
return IsProcessorFeaturePresent(PF_MMX_INSTRUCTIONS_AVAILABLE);
}
static const char *
cpu_isalist(void)
{
SYSTEM_INFO info;
GetSystemInfo(&info);
switch (info.wProcessorArchitecture) {
#ifdef PROCESSOR_ARCHITECTURE_IA64
case PROCESSOR_ARCHITECTURE_IA64: return "ia64";
#endif
#ifdef PROCESSOR_ARCHITECTURE_AMD64
case PROCESSOR_ARCHITECTURE_AMD64: return "amd64";
#endif
case PROCESSOR_ARCHITECTURE_INTEL:
switch (info.wProcessorLevel) {
case 6: return haveMMX()
? "pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86"
: "pentium_pro pentium i486 i386 i86";
case 5: return haveMMX()
? "pentium+mmx pentium i486 i386 i86"
: "pentium i486 i386 i86";
case 4: return "i486 i386 i86";
case 3: return "i386 i86";
}
}
return NULL;
}
static boolean
SetupI18nProps(LCID lcid, char** language, char** script, char** country,
char** variant, char** encoding) {
/* script */
char tmp[SNAMESIZE];
*script = malloc(PROPSIZE);
if (*script == NULL) {
return FALSE;
}
if (GetLocaleInfo(lcid,
LOCALE_SNAME, tmp, SNAMESIZE) == 0 ||
sscanf(tmp, "%*[a-z\\-]%1[A-Z]%[a-z]", *script, &((*script)[1])) == 0 ||
strlen(*script) != 4) {
(*script)[0] = '\0';
}
/* country */
*country = malloc(PROPSIZE);
if (*country == NULL) {
return FALSE;
}
if (GetLocaleInfo(lcid,
LOCALE_SISO3166CTRYNAME, *country, PROPSIZE) == 0 &&
GetLocaleInfo(lcid,
LOCALE_SISO3166CTRYNAME2, *country, PROPSIZE) == 0) {
(*country)[0] = '\0';
}
/* language */
*language = malloc(PROPSIZE);
if (*language == NULL) {
return FALSE;
}
if (GetLocaleInfo(lcid,
LOCALE_SISO639LANGNAME, *language, PROPSIZE) == 0 &&
GetLocaleInfo(lcid,
LOCALE_SISO639LANGNAME2, *language, PROPSIZE) == 0) {
/* defaults to en_US */
strcpy(*language, "en");
strcpy(*country, "US");
}
/* variant */
*variant = malloc(PROPSIZE);
if (*variant == NULL) {
return FALSE;
}
(*variant)[0] = '\0';
/* handling for Norwegian */
if (strcmp(*language, "nb") == 0) {
strcpy(*language, "no");
strcpy(*country , "NO");
} else if (strcmp(*language, "nn") == 0) {
strcpy(*language, "no");
strcpy(*country , "NO");
strcpy(*variant, "NY");
}
/* encoding */
*encoding = getEncodingInternal(lcid);
if (*encoding == NULL) {
return FALSE;
}
return TRUE;
}
// GetVersionEx is deprecated; disable the warning until a replacement is found
#pragma warning(disable : 4996)
java_props_t *
GetJavaProperties(JNIEnv* env)
{
static java_props_t sprops = {0};
int majorVersion;
int minorVersion;
int buildNumber = 0;
if (sprops.line_separator) {
return &sprops;
}
/* tmp dir */
{
WCHAR tmpdir[MAX_PATH + 1];
/* we might want to check that this succeed */
GetTempPathW(MAX_PATH + 1, tmpdir);
sprops.tmp_dir = _wcsdup(tmpdir);
}
/* OS properties */
{
char buf[100];
boolean is_workstation;
boolean is_64bit;
DWORD platformId;
{
OSVERSIONINFOEX ver;
ver.dwOSVersionInfoSize = sizeof(ver);
GetVersionEx((OSVERSIONINFO *) &ver);
majorVersion = ver.dwMajorVersion;
minorVersion = ver.dwMinorVersion;
/* distinguish Windows Server 2016 and 2019 by build number */
buildNumber = ver.dwBuildNumber;
is_workstation = (ver.wProductType == VER_NT_WORKSTATION);
platformId = ver.dwPlatformId;
sprops.patch_level = _strdup(ver.szCSDVersion);
}
{
SYSTEM_INFO si;
ZeroMemory(&si, sizeof(SYSTEM_INFO));
GetNativeSystemInfo(&si);
is_64bit = (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64);
}
do {
// Read the major and minor version number from kernel32.dll
VS_FIXEDFILEINFO *file_info;
WCHAR kernel32_path[MAX_PATH];
DWORD version_size;
LPTSTR version_info;
UINT len, ret;
// Get the full path to \Windows\System32\kernel32.dll and use that for
// determining what version of Windows we're running on.
len = MAX_PATH - (UINT)strlen("\\kernel32.dll") - 1;
ret = GetSystemDirectoryW(kernel32_path, len);
if (ret == 0 || ret > len) {
break;
}
wcsncat(kernel32_path, L"\\kernel32.dll", MAX_PATH - ret);
version_size = GetFileVersionInfoSizeW(kernel32_path, NULL);
if (version_size == 0) {
break;
}
version_info = (LPTSTR)malloc(version_size);
if (version_info == NULL) {
break;
}
if (!GetFileVersionInfoW(kernel32_path, 0, version_size, version_info)) {
free(version_info);
break;
}
if (!VerQueryValueW(version_info, L"\\", (LPVOID*)&file_info, &len)) {
free(version_info);
break;
}
majorVersion = HIWORD(file_info->dwProductVersionMS);
minorVersion = LOWORD(file_info->dwProductVersionMS);
buildNumber = HIWORD(file_info->dwProductVersionLS);
free(version_info);
} while (0);
/*
* From msdn page on OSVERSIONINFOEX, current as of this
* writing, decoding of dwMajorVersion and dwMinorVersion.
*
* Operating system dwMajorVersion dwMinorVersion
* ================== ============== ==============
*
* Windows 95 4 0
* Windows 98 4 10
* Windows ME 4 90
* Windows 3.51 3 51
* Windows NT 4.0 4 0
* Windows 2000 5 0
* Windows XP 32 bit 5 1
* Windows Server 2003 family 5 2
* Windows XP 64 bit 5 2
* where ((&ver.wServicePackMinor) + 2) = 1
* and si.wProcessorArchitecture = 9
* Windows Vista family 6 0 (VER_NT_WORKSTATION)
* Windows Server 2008 6 0 (!VER_NT_WORKSTATION)
* Windows 7 6 1 (VER_NT_WORKSTATION)
* Windows Server 2008 R2 6 1 (!VER_NT_WORKSTATION)
* Windows 8 6 2 (VER_NT_WORKSTATION)
* Windows Server 2012 6 2 (!VER_NT_WORKSTATION)
* Windows Server 2012 R2 6 3 (!VER_NT_WORKSTATION)
* Windows 10 10 0 (VER_NT_WORKSTATION)
* Windows Server 2016 10 0 (!VER_NT_WORKSTATION)
* Windows Server 2019 10 0 (!VER_NT_WORKSTATION)
* where (buildNumber > 17762)
*
* This mapping will presumably be augmented as new Windows
* versions are released.
*/
switch (platformId) {
case VER_PLATFORM_WIN32_WINDOWS:
if (majorVersion == 4) {
switch (minorVersion) {
case 0: sprops.os_name = "Windows 95"; break;
case 10: sprops.os_name = "Windows 98"; break;
case 90: sprops.os_name = "Windows Me"; break;
default: sprops.os_name = "Windows 9X (unknown)"; break;
}
} else {
sprops.os_name = "Windows 9X (unknown)";
}
break;
case VER_PLATFORM_WIN32_NT:
if (majorVersion <= 4) {
sprops.os_name = "Windows NT";
} else if (majorVersion == 5) {
switch (minorVersion) {
case 0: sprops.os_name = "Windows 2000"; break;
case 1: sprops.os_name = "Windows XP"; break;
case 2:
/*
* From MSDN OSVERSIONINFOEX and SYSTEM_INFO documentation:
*
* "Because the version numbers for Windows Server 2003
* and Windows XP 6u4 bit are identical, you must also test
* whether the wProductType member is VER_NT_WORKSTATION.
* and si.wProcessorArchitecture is
* PROCESSOR_ARCHITECTURE_AMD64 (which is 9)
* If it is, the operating system is Windows XP 64 bit;
* otherwise, it is Windows Server 2003."
*/
if (is_workstation && is_64bit) {
sprops.os_name = "Windows XP"; /* 64 bit */
} else {
sprops.os_name = "Windows 2003";
}
break;
default: sprops.os_name = "Windows NT (unknown)"; break;
}
} else if (majorVersion == 6) {
/*
* See table in MSDN OSVERSIONINFOEX documentation.
*/
if (is_workstation) {
switch (minorVersion) {
case 0: sprops.os_name = "Windows Vista"; break;
case 1: sprops.os_name = "Windows 7"; break;
case 2: sprops.os_name = "Windows 8"; break;
case 3: sprops.os_name = "Windows 8.1"; break;
default: sprops.os_name = "Windows NT (unknown)";
}
} else {
switch (minorVersion) {
case 0: sprops.os_name = "Windows Server 2008"; break;
case 1: sprops.os_name = "Windows Server 2008 R2"; break;
case 2: sprops.os_name = "Windows Server 2012"; break;
case 3: sprops.os_name = "Windows Server 2012 R2"; break;
default: sprops.os_name = "Windows NT (unknown)";
}
}
} else if (majorVersion == 10) {
if (is_workstation) {
switch (minorVersion) {
case 0: sprops.os_name = "Windows 10"; break;
default: sprops.os_name = "Windows NT (unknown)";
}
} else {
switch (minorVersion) {
case 0:
/* Windows server 2019 GA 10/2018 build number is 17763 */
if (buildNumber > 17762) {
sprops.os_name = "Windows Server 2019";
} else {
sprops.os_name = "Windows Server 2016";
}
break;
default: sprops.os_name = "Windows NT (unknown)";
}
}
} else {
sprops.os_name = "Windows NT (unknown)";
}
break;
default:
sprops.os_name = "Windows (unknown)";
break;
}
sprintf(buf, "%d.%d", majorVersion, minorVersion);
sprops.os_version = _strdup(buf);
#if defined(_M_AMD64)
sprops.os_arch = "amd64";
#elif defined(_X86_)
sprops.os_arch = "x86";
#else
sprops.os_arch = "unknown";
#endif
}
/* Endianness of platform */
{
unsigned int endianTest = 0xff000000;
if (((char*)(&endianTest))[0] != 0) {
sprops.cpu_endian = "big";
} else {
sprops.cpu_endian = "little";
}
}
/* CPU ISA list */
sprops.cpu_isalist = cpu_isalist();
/*
* User name
* We try to avoid calling GetUserName as it turns out to
* be surprisingly expensive on NT. It pulls in an extra
* 100 K of footprint.
*/
{
WCHAR *uname = _wgetenv(L"USERNAME");
if (uname != NULL && wcslen(uname) > 0) {
sprops.user_name = _wcsdup(uname);
} else {
DWORD buflen = 0;
if (GetUserNameW(NULL, &buflen) == 0 &&
GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
uname = (WCHAR*)malloc(buflen * sizeof(WCHAR));
if (uname != NULL && GetUserNameW(uname, &buflen) == 0) {
free(uname);
uname = NULL;
}
} else {
uname = NULL;
}
sprops.user_name = (uname != NULL) ? uname : L"unknown";
}
}
/*
* Home directory
*
* The normal result is that for a given user name XXX:
* On multi-user NT, user.home gets set to c:\winnt\profiles\XXX.
* On multi-user Win95, user.home gets set to c:\windows\profiles\XXX.
* On single-user Win95, user.home gets set to c:\windows.
*/
{
WCHAR *homep = getHomeFromShell32();
if (homep == NULL) {
homep = L"C:\\";
}
sprops.user_home = homep;
}
/*
* user.language
* user.script, user.country, user.variant (if user's environment specifies them)
* file.encoding
*/
{
/*
* query the system for the current system default locale
* (which is a Windows LCID value),
*/
LCID userDefaultLCID = GetUserDefaultLCID();
LCID systemDefaultLCID = GetSystemDefaultLCID();
LCID userDefaultUILang = GetUserDefaultUILanguage();
{
char * display_encoding;
HANDLE hStdOutErr;
// Windows UI Language selection list only cares "language"
// information of the UI Language. For example, the list
// just lists "English" but it actually means "en_US", and
// the user cannot select "en_GB" (if exists) in the list.
// So, this hack is to use the user LCID region information
// for the UI Language, if the "language" portion of those
// two locales are the same.
if (PRIMARYLANGID(LANGIDFROMLCID(userDefaultLCID)) ==
PRIMARYLANGID(LANGIDFROMLCID(userDefaultUILang))) {
userDefaultUILang = userDefaultLCID;
}
SetupI18nProps(userDefaultLCID,
&sprops.format_language,
&sprops.format_script,
&sprops.format_country,
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