1 files changed, 72 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTUtf16CopyAscii.cpp b/src/VBox/Runtime/common/string/RTUtf16CopyAscii.cpp
new file mode 100644
index 00000000..e285c508
--- /dev/null
+++ b/src/VBox/Runtime/common/string/RTUtf16CopyAscii.cpp
@@ -0,0 +1,72 @@
+/* $Id: RTUtf16CopyAscii.cpp $ */
+/** @file
+ * IPRT - RTUtf16CopyAscii.
+ */
+
+/*
+ * Copyright (C) 2010-2019 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/utf16.h>
+#include "internal/iprt.h"
+
+#include <iprt/errcore.h>
+
+
+RTDECL(int) RTUtf16CopyAscii(PRTUTF16 pwszDst, size_t cwcDst, const char *pszSrc)
+{
+    int rc;
+    size_t cchSrc = strlen(pszSrc);
+    size_t cchCopy;
+    if (RT_LIKELY(cchSrc < cwcDst))
+    {
+        rc = VINF_SUCCESS;
+        cchCopy = cchSrc;
+    }
+    else if (cwcDst != 0)
+    {
+        rc = VERR_BUFFER_OVERFLOW;
+        cchCopy = cwcDst - 1;
+    }
+    else
+        return VERR_BUFFER_OVERFLOW;
+
+    pwszDst[cchCopy] = '\0';
+    while (cchCopy-- > 0)
+    {
+        unsigned char ch = pszSrc[cchCopy];
+        if (RT_LIKELY(ch < 0x80))
+            pwszDst[cchCopy] = ch;
+        else
+        {
+            AssertMsgFailed(("ch=%#x\n", ch));
+            pwszDst[cchCopy] = 0x7f;
+            if (rc == VINF_SUCCESS)
+                rc = VERR_OUT_OF_RANGE;
+        }
+    }
+    return rc;
+}
+RT_EXPORT_SYMBOL(RTUtf16CopyAscii);
+