/*

 * Copyright (c) 2004, 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.

 */

#include <windows.h>

#include <stdlib.h>

#include <stdio.h>

/*

 * Convert UTF-8 to a platform string

 */

int

convertUft8ToPlatformString(char* utf8_str, int utf8_len, char* platform_str, int platform_len) {

    LANGID langID;

    LCID localeID;

    TCHAR strCodePage[7];       // ANSI code page id

    UINT codePage;

    int wlen, plen;

    WCHAR* wstr;

    /*

     * Get the code page for this locale

     */

    langID = LANGIDFROMLCID(GetUserDefaultLCID());

    localeID = MAKELCID(langID, SORT_DEFAULT);

    if (GetLocaleInfo(localeID, LOCALE_IDEFAULTANSICODEPAGE,

                      strCodePage, sizeof(strCodePage)/sizeof(TCHAR)) > 0 ) {

        codePage = atoi(strCodePage);

    } else {

        codePage = GetACP();

    }

    /*

     * To convert the string to platform encoding we must first convert

     * to unicode, and then convert to the platform encoding

     */

    plen = -1;

    wlen = MultiByteToWideChar(CP_UTF8, 0, utf8_str, utf8_len, NULL, 0);

    if (wlen > 0) {

        wstr = (WCHAR*)malloc(wlen * sizeof(WCHAR));

        if (wstr != NULL) {

            if (MultiByteToWideChar(CP_UTF8,

                                    0,

                                    utf8_str,

                                    utf8_len,

                                    wstr, wlen) > 0) {

                plen = WideCharToMultiByte(codePage,

                                           0,

                                           wstr,

                                           wlen,

                                           platform_str,

                                           platform_len,

                                           NULL,

                                           NULL);

                if (plen >= 0) {

                    platform_str[plen] = '\0';

                }

                free(wstr);

            }

        }

    }

    return plen;

}