| 1 | /* $Id: RTLocaleQueryNormalizedBaseLocaleName-r3-generic.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTLocaleQueryNormalizedBaseLocaleName, ring-3 generic.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2017-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #include <iprt/locale.h>
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| 42 | #include "internal/iprt.h"
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| 43 |
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| 44 | #include <iprt/ctype.h>
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| 45 | #include <iprt/errcore.h>
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| 46 | #include <iprt/string.h>
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| 47 |
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| 48 |
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| 49 | /*
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| 50 | * Note! Code duplicated in r3/win/RTLocaleQueryNormalizedBaseLocaleName-win.cpp (adds fallback).
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| 51 | */
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| 52 | RTDECL(int) RTLocaleQueryNormalizedBaseLocaleName(char *pszName, size_t cbName)
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| 53 | {
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| 54 | char szLocale[_1K];
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| 55 | int rc = RTLocaleQueryLocaleName(szLocale, sizeof(szLocale));
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| 56 | if (RT_SUCCESS(rc))
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| 57 | {
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| 58 | /*
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| 59 | * May return some complicated "LC_XXX=yyy;LC.." sequence if
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| 60 | * partially set (like IPRT does). Try get xx_YY sequence first
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| 61 | * because 'C' or 'POSIX' may be LC_xxx variants that haven't been
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| 62 | * set yet.
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| 63 | *
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| 64 | * ASSUMES complicated locale mangling is done in a certain way...
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| 65 | */
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| 66 | const char *pszLocale = strchr(szLocale, '=');
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| 67 | if (!pszLocale)
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| 68 | pszLocale = szLocale;
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| 69 | else
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| 70 | pszLocale++;
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| 71 | bool fSeenC = false;
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| 72 | bool fSeenPOSIX = false;
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| 73 | do
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| 74 | {
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| 75 | const char *pszEnd = strchr(pszLocale, ';');
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| 76 |
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| 77 | if ( RTLOCALE_IS_LANGUAGE2_UNDERSCORE_COUNTRY2(pszLocale)
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| 78 | && ( pszLocale[5] == '\0'
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| 79 | || RT_C_IS_PUNCT(pszLocale[5])) )
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| 80 | return RTStrCopyEx(pszName, cbName, pszLocale, 5);
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| 81 |
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| 82 | if ( pszLocale[0] == 'C'
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| 83 | && ( pszLocale[1] == '\0'
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| 84 | || RT_C_IS_PUNCT(pszLocale[1])) )
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| 85 | fSeenC = true;
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| 86 | else if ( strncmp(pszLocale, "POSIX", 5) == 0
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| 87 | && ( pszLocale[5] == '\0'
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| 88 | || RT_C_IS_PUNCT(pszLocale[5])) )
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| 89 | fSeenPOSIX = true;
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| 90 |
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| 91 | /* advance */
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| 92 | pszLocale = pszEnd ? strchr(pszEnd + 1, '=') : NULL;
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| 93 | } while (pszLocale++);
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| 94 |
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| 95 | if (fSeenC || fSeenPOSIX)
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| 96 | return RTStrCopy(pszName, cbName, "C"); /* C and POSIX should be identical IIRC, so keep it simple. */
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| 97 |
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| 98 | rc = VERR_NOT_AVAILABLE;
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| 99 | }
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| 100 | return rc;
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| 101 | }
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| 102 |
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