1 files changed, 101 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/path/RTPathSplitA.cpp b/src/VBox/Runtime/common/path/RTPathSplitA.cpp
new file mode 100644
index 00000000..b5829f0d
--- /dev/null
+++ b/src/VBox/Runtime/common/path/RTPathSplitA.cpp
@@ -0,0 +1,101 @@
+/* $Id: RTPathSplitA.cpp $ */
+/** @file
+ * IPRT - RTPathSplitA and RTPathSplitFree.
+ */
+
+/*
+ * Copyright (C) 2013-2022 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/mem.h>
+#include <iprt/string.h>
+
+
+
+RTDECL(int) RTPathSplitATag(const char *pszPath, PRTPATHSPLIT *ppSplit, uint32_t fFlags, const char *pszTag)
+{
+    AssertPtrReturn(ppSplit, VERR_INVALID_POINTER);
+    *ppSplit = NULL;
+
+    /*
+     * Try estimate a reasonable buffer size based on the path length.
+     * Note! No point in trying very hard to get it right.
+     */
+    size_t cbSplit = strlen(pszPath);
+    cbSplit += RT_UOFFSETOF_DYN(RTPATHSPLIT, apszComps[cbSplit / 8]) + cbSplit / 8 + 8;
+    cbSplit = RT_ALIGN(cbSplit, 64);
+    PRTPATHSPLIT pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
+    if (pSplit == NULL)
+        return VERR_NO_MEMORY;
+
+    /*
+     * First try. If it fails due to buffer, reallocate the buffer and try again.
+     */
+    int rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
+    if (rc == VERR_BUFFER_OVERFLOW)
+    {
+        cbSplit = RT_ALIGN(pSplit->cbNeeded, 64);
+        RTMemFree(pSplit);
+
+        pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
+        if (pSplit == NULL)
+            return VERR_NO_MEMORY;
+        rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
+    }
+
+    /*
+     * Done (one way or the other).
+     */
+    if (RT_SUCCESS(rc))
+        *ppSplit = pSplit;
+    else
+        RTMemFree(pSplit);
+    return rc;
+}
+
+
+RTDECL(void) RTPathSplitFree(PRTPATHSPLIT pSplit)
+{
+    if (pSplit)
+    {
+        Assert(pSplit->u16Reserved = UINT16_C(0xbeef));
+        RTMemFree(pSplit);
+    }
+}
+