1 files changed, 116 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/win/RTLocaleQueryNormalizedBaseLocaleName-win.cpp b/src/VBox/Runtime/r3/win/RTLocaleQueryNormalizedBaseLocaleName-win.cpp
new file mode 100644
index 00000000..10efd342
--- /dev/null
+++ b/src/VBox/Runtime/r3/win/RTLocaleQueryNormalizedBaseLocaleName-win.cpp
@@ -0,0 +1,116 @@
+/* $Id: RTLocaleQueryNormalizedBaseLocaleName-win.cpp $ */
+/** @file
+ * IPRT - RTLocaleQueryNormalizedBaseLocaleName, ring-3, Windows.
+ */
+
+/*
+ * Copyright (C) 2017-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox 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.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   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>
+
+
+RTDECL(int) RTLocaleQueryNormalizedBaseLocaleName(char *pszName, size_t cbName)
+{
+    /*
+     * Note! This part is duplicate of r3/generic/RTLocaleQueryNormalizedBaseLocaleName-r3-generic.cpp!
+     */
+    char szLocale[_1K];
+    int rc = RTLocaleQueryLocaleName(szLocale, sizeof(szLocale));
+    if (RT_SUCCESS(rc))
+    {
+        /*
+         * May return some complicated "LC_XXX=yyy;LC.." sequence if
+         * partially set (like IPRT does).  Try get xx_YY sequence first
+         * because 'C' or 'POSIX' may be LC_xxx variants that haven't been
+         * set yet.
+         *
+         * ASSUMES complicated locale mangling is done in a certain way...
+         */
+        const char *pszLocale = strchr(szLocale, '=');
+        if (!pszLocale)
+            pszLocale = szLocale;
+        else
+            pszLocale++;
+        bool fSeenC = false;
+        bool fSeenPOSIX = false;
+        do
+        {
+            const char *pszEnd = strchr(pszLocale, ';');
+
+            if (   RTLOCALE_IS_LANGUAGE2_UNDERSCORE_COUNTRY2(pszLocale)
+                && (   pszLocale[5] == '\0'
+                    || RT_C_IS_PUNCT(pszLocale[5])) )
+                return RTStrCopyEx(pszName, cbName, pszLocale, 5);
+
+            if (   pszLocale[0] == 'C'
+                && (   pszLocale[1] == '\0'
+                    || RT_C_IS_PUNCT(pszLocale[1])) )
+                fSeenC = true;
+            else if (   strncmp(pszLocale, "POSIX", 5) == 0
+                     && (   pszLocale[5] == '\0'
+                        || RT_C_IS_PUNCT(pszLocale[5])) )
+                fSeenPOSIX = true;
+
+            /* advance */
+            pszLocale = pszEnd ? strchr(pszEnd + 1, '=') : NULL;
+        } while (pszLocale++);
+
+        if (fSeenC || fSeenPOSIX)
+            return RTStrCopy(pszName, cbName, "C"); /* C and POSIX should be identical IIRC, so keep it simple. */
+
+        rc = VERR_NOT_AVAILABLE;
+    }
+
+    /*
+     * Fallback.
+     */
+    if (   GetLocaleInfoA(GetUserDefaultLCID(), LOCALE_SISO639LANGNAME, szLocale, sizeof(szLocale)) == 3
+        && GetLocaleInfoA(GetUserDefaultLCID(), LOCALE_SISO3166CTRYNAME, &szLocale[3], sizeof(szLocale) - 4) == 3)
+    {
+        szLocale[2] = '_';
+        Assert(RTLOCALE_IS_LANGUAGE2_UNDERSCORE_COUNTRY2(szLocale));
+        return RTStrCopy(pszName, cbName, szLocale);
+    }
+
+    return rc;
+}
+