| 1 | /* $Id: RTLocaleQueryUserCountryCode-win.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTLocaleQueryUserCountryCode, ring-3, Windows.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2017-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/win/windows.h>
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| 32 |
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| 33 | #include <iprt/locale.h>
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| 34 | #include "internal/iprt.h"
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| 35 |
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| 36 | #include <iprt/ctype.h>
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| 37 | #include <iprt/errcore.h>
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| 38 | #include <iprt/string.h>
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| 39 |
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| 40 | #include "internal-r3-win.h"
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| 41 |
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| 42 |
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| 43 | /*********************************************************************************************************************************
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| 44 | * Structures and Typedefs *
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| 45 | *********************************************************************************************************************************/
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| 46 | typedef GEOID (WINAPI *PFNGETUSERGEOID)(GEOCLASS);
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| 47 | typedef INT (WINAPI *PFNGETGEOINFOW)(GEOID,GEOTYPE,LPWSTR,INT,LANGID);
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| 48 |
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| 49 |
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| 50 | /*********************************************************************************************************************************
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| 51 | * Global Variables *
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| 52 | *********************************************************************************************************************************/
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| 53 | /** Pointer to GetUserGeoID. */
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| 54 | static PFNGETUSERGEOID g_pfnGetUserGeoID = NULL;
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| 55 | /** Pointer to GetGeoInfoW. */
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| 56 | static PFNGETGEOINFOW g_pfnGetGeoInfoW = NULL;
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| 57 | /** Set if we've tried to resolve the APIs. */
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| 58 | static bool volatile g_fResolvedApis = false;
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| 59 |
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| 60 |
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| 61 | RTDECL(int) RTLocaleQueryUserCountryCode(char pszCountryCode[3])
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| 62 | {
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| 63 | /*
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| 64 | * Get API pointers.
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| 65 | */
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| 66 | PFNGETUSERGEOID pfnGetUserGeoID;
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| 67 | PFNGETGEOINFOW pfnGetGeoInfoW;
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| 68 | if (g_fResolvedApis)
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| 69 | {
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| 70 | pfnGetUserGeoID = g_pfnGetUserGeoID;
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| 71 | pfnGetGeoInfoW = g_pfnGetGeoInfoW;
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| 72 | }
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| 73 | else
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| 74 | {
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| 75 | pfnGetUserGeoID = (PFNGETUSERGEOID)GetProcAddress(g_hModKernel32, "GetUserGeoID");
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| 76 | pfnGetGeoInfoW = (PFNGETGEOINFOW)GetProcAddress(g_hModKernel32, "GetGeoInfoW");
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| 77 | g_pfnGetUserGeoID = pfnGetUserGeoID;
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| 78 | g_pfnGetGeoInfoW = pfnGetGeoInfoW;
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| 79 | g_fResolvedApis = true;
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| 80 | }
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| 81 |
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| 82 | int rc;
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| 83 | if ( pfnGetGeoInfoW
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| 84 | && pfnGetUserGeoID)
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| 85 | {
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| 86 | /*
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| 87 | * Call the API and retrieve the two letter ISO country code.
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| 88 | */
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| 89 | GEOID idGeo = pfnGetUserGeoID(GEOCLASS_NATION);
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| 90 | if (idGeo != GEOID_NOT_AVAILABLE)
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| 91 | {
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| 92 | RTUTF16 wszName[16];
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| 93 | RT_ZERO(wszName);
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| 94 | DWORD cwcReturned = pfnGetGeoInfoW(idGeo, GEO_ISO2, wszName, RT_ELEMENTS(wszName), LOCALE_NEUTRAL);
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| 95 | if ( cwcReturned >= 2
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| 96 | && cwcReturned <= 3
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| 97 | && wszName[2] == '\0'
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| 98 | && wszName[1] != '\0'
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| 99 | && RT_C_IS_ALPHA(wszName[1])
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| 100 | && wszName[0] != '\0'
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| 101 | && RT_C_IS_ALPHA(wszName[0]) )
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| 102 | {
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| 103 | pszCountryCode[0] = RT_C_TO_UPPER(wszName[0]);
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| 104 | pszCountryCode[1] = RT_C_TO_UPPER(wszName[1]);
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| 105 | pszCountryCode[2] = '\0';
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| 106 | return VINF_SUCCESS;
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| 107 | }
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| 108 | AssertMsgFailed(("cwcReturned=%d err=%u wszName='%.16ls'\n", cwcReturned, GetLastError(), wszName));
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| 109 | }
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| 110 | rc = VERR_NOT_AVAILABLE;
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| 111 | }
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| 112 | else
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| 113 | rc = VERR_NOT_SUPPORTED;
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| 114 | pszCountryCode[0] = 'Z';
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| 115 | pszCountryCode[1] = 'Z';
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| 116 | pszCountryCode[2] = '\0';
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| 117 | return rc;
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| 118 | }
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| 119 |
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