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/* $Id: RTLocaleQueryUserCountryCode-win.cpp $ */
/** @file
* IPRT - RTLocaleQueryUserCountryCode, ring-3, Windows.
*/
/*
* Copyright (C) 2017-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/win/windows.h>
#include <iprt/locale.h>
#include "internal/iprt.h"
#include <iprt/ctype.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
#include "internal-r3-win.h"
/*********************************************************************************************************************************
* Structures and Typedefs *
*********************************************************************************************************************************/
typedef GEOID (WINAPI *PFNGETUSERGEOID)(GEOCLASS);
typedef INT (WINAPI *PFNGETGEOINFOW)(GEOID,GEOTYPE,LPWSTR,INT,LANGID);
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** Pointer to GetUserGeoID. */
static PFNGETUSERGEOID g_pfnGetUserGeoID = NULL;
/** Pointer to GetGeoInfoW. */
static PFNGETGEOINFOW g_pfnGetGeoInfoW = NULL;
/** Set if we've tried to resolve the APIs. */
static bool volatile g_fResolvedApis = false;
RTDECL(int) RTLocaleQueryUserCountryCode(char pszCountryCode[3])
{
/*
* Get API pointers.
*/
PFNGETUSERGEOID pfnGetUserGeoID;
PFNGETGEOINFOW pfnGetGeoInfoW;
if (g_fResolvedApis)
{
pfnGetUserGeoID = g_pfnGetUserGeoID;
pfnGetGeoInfoW = g_pfnGetGeoInfoW;
}
else
{
pfnGetUserGeoID = (PFNGETUSERGEOID)GetProcAddress(g_hModKernel32, "GetUserGeoID");
pfnGetGeoInfoW = (PFNGETGEOINFOW)GetProcAddress(g_hModKernel32, "GetGeoInfoW");
g_pfnGetUserGeoID = pfnGetUserGeoID;
g_pfnGetGeoInfoW = pfnGetGeoInfoW;
g_fResolvedApis = true;
}
int rc;
if ( pfnGetGeoInfoW
&& pfnGetUserGeoID)
{
/*
* Call the API and retrieve the two letter ISO country code.
*/
GEOID idGeo = pfnGetUserGeoID(GEOCLASS_NATION);
if (idGeo != GEOID_NOT_AVAILABLE)
{
RTUTF16 wszName[16];
RT_ZERO(wszName);
DWORD cwcReturned = pfnGetGeoInfoW(idGeo, GEO_ISO2, wszName, RT_ELEMENTS(wszName), LOCALE_NEUTRAL);
if ( cwcReturned >= 2
&& cwcReturned <= 3
&& wszName[2] == '\0'
&& wszName[1] != '\0'
&& RT_C_IS_ALPHA(wszName[1])
&& wszName[0] != '\0'
&& RT_C_IS_ALPHA(wszName[0]) )
{
pszCountryCode[0] = RT_C_TO_UPPER(wszName[0]);
pszCountryCode[1] = RT_C_TO_UPPER(wszName[1]);
pszCountryCode[2] = '\0';
return VINF_SUCCESS;
}
AssertMsgFailed(("cwcReturned=%d err=%u wszName='%.16ls'\n", cwcReturned, GetLastError(), wszName));
}
rc = VERR_NOT_AVAILABLE;
}
else
rc = VERR_NOT_SUPPORTED;
pszCountryCode[0] = 'Z';
pszCountryCode[1] = 'Z';
pszCountryCode[2] = '\0';
return rc;
}
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