1 files changed, 94 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/path/RTPathCopyComponents.cpp b/src/VBox/Runtime/common/path/RTPathCopyComponents.cpp
new file mode 100644
index 00000000..ea202507
--- /dev/null
+++ b/src/VBox/Runtime/common/path/RTPathCopyComponents.cpp
@@ -0,0 +1,94 @@
+/* $Id: RTPathCopyComponents.cpp $ */
+/** @file
+ * IPRT - RTPathCountComponents
+ */
+
+/*
+ * Copyright (C) 2010-2023 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 "internal/iprt.h"
+#include <iprt/path.h>
+
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/string.h>
+#include "internal/path.h"
+
+
+RTDECL(int) RTPathCopyComponents(char *pszDst, size_t cbDst, const char *pszSrc, size_t cComponents)
+{
+    /*
+     * Quick input validation.
+     */
+    AssertPtr(pszDst);
+    AssertPtr(pszSrc);
+    if (cbDst == 0)
+        return VERR_BUFFER_OVERFLOW;
+
+    /*
+     * Fend of the simple case where nothing is wanted.
+     */
+    if (cComponents == 0)
+    {
+        *pszDst = '\0';
+        return VINF_SUCCESS;
+    }
+
+    /*
+     * Parse into the path until we've counted the desired number of objects
+     * or hit the end.
+     */
+    size_t off = rtPathRootSpecLen(pszSrc);
+    size_t c   = off != 0;
+    while (c < cComponents && pszSrc[off])
+    {
+        c++;
+        while (!RTPATH_IS_SLASH(pszSrc[off]) && pszSrc[off])
+            off++;
+        while (RTPATH_IS_SLASH(pszSrc[off]))
+            off++;
+    }
+
+    /*
+     * Copy up to but not including 'off'.
+     */
+    if (off >= cbDst)
+        return VERR_BUFFER_OVERFLOW;
+
+    memcpy(pszDst, pszSrc, off);
+    pszDst[off] = '\0';
+    return VINF_SUCCESS;
+}
+