1 files changed, 55 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTUtf16CopyEx.cpp b/src/VBox/Runtime/common/string/RTUtf16CopyEx.cpp
new file mode 100644
index 00000000..2ff53170
--- /dev/null
+++ b/src/VBox/Runtime/common/string/RTUtf16CopyEx.cpp
@@ -0,0 +1,55 @@
+/* $Id: RTUtf16CopyEx.cpp $ */
+/** @file
+ * IPRT - RTUtf16CopyEx.
+ */
+
+/*
+ * Copyright (C) 2010-2020 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/utf16.h>
+#include "internal/iprt.h"
+
+#include <iprt/errcore.h>
+
+
+RTDECL(int) RTUtf16CopyEx(PRTUTF16 pwszDst, size_t cwcDst, PCRTUTF16 pwszSrc, size_t cwcSrcMax)
+{
+    size_t cwcSrc = RTUtf16NLen(pwszSrc, cwcSrcMax);
+    if (RT_LIKELY(cwcSrc < cwcDst))
+    {
+        memcpy(pwszDst, pwszSrc, cwcSrc * sizeof(RTUTF16));
+        pwszDst[cwcSrc] = '\0';
+        return VINF_SUCCESS;
+    }
+
+    if (cwcDst != 0)
+    {
+        memcpy(pwszDst, pwszSrc, (cwcDst - 1) * sizeof(RTUTF16));
+        pwszDst[cwcDst - 1] = '\0';
+    }
+    return VERR_BUFFER_OVERFLOW;
+}
+RT_EXPORT_SYMBOL(RTUtf16CopyEx);
+