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85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
/*
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* Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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/*
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* Convert UTF-8 to a platform string
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*/
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int
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convertUtf8ToPlatformString(char* utf8_str, int utf8_len, char* platform_str, int platform_len) {
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LANGID langID;
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LCID localeID;
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TCHAR strCodePage[7]; // ANSI code page id
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UINT codePage;
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int wlen, plen;
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WCHAR* wstr;
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/*
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* Get the code page for this locale
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*/
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langID = LANGIDFROMLCID(GetUserDefaultLCID());
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localeID = MAKELCID(langID, SORT_DEFAULT);
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if (GetLocaleInfo(localeID, LOCALE_IDEFAULTANSICODEPAGE,
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strCodePage, sizeof(strCodePage)/sizeof(TCHAR)) > 0 ) {
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codePage = atoi(strCodePage);
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} else {
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codePage = GetACP();
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}
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/*
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* To convert the string to platform encoding we must first convert
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* to unicode, and then convert to the platform encoding
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*/
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plen = -1;
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wlen = MultiByteToWideChar(CP_UTF8, 0, utf8_str, utf8_len, NULL, 0);
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if (wlen > 0) {
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wstr = (WCHAR*)malloc(wlen * sizeof(WCHAR));
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if (wstr != NULL) {
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if (MultiByteToWideChar(CP_UTF8,
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0,
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utf8_str,
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utf8_len,
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wstr, wlen) > 0) {
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plen = WideCharToMultiByte(codePage,
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0,
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wstr,
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wlen,
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platform_str,
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platform_len,
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NULL,
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NULL);
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if (plen >= 0) {
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platform_str[plen] = '\0';
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}
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}
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free(wstr);
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}
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}
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return plen;
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}
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