1 files changed, 99 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/path/RTPathStripFilename.cpp b/src/VBox/Runtime/common/path/RTPathStripFilename.cpp
new file mode 100644
index 00000000..6d6aa332
--- /dev/null
+++ b/src/VBox/Runtime/common/path/RTPathStripFilename.cpp
@@ -0,0 +1,99 @@
+/* $Id: RTPathStripFilename.cpp $ */
+/** @file
+ * IPRT - RTPathStripFilename
+ */
+
+/*
+ * Copyright (C) 2006-2023 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/ctype.h>
+
+
+/**
+ * Strips the filename from a path. Truncates the given string in-place by overwriting the
+ * last path separator character with a null byte in a platform-neutral way.
+ *
+ * @param   pszPath     Path from which filename should be extracted, will be truncated.
+ *                      If the string contains no path separator, it will be changed to a "." string.
+ */
+RTDECL(void) RTPathStripFilename(char *pszPath)
+{
+    char *psz = pszPath;
+    char *pszLastSep = NULL;
+
+
+    for (;; psz++)
+    {
+        switch (*psz)
+        {
+            /* handle separators. */
+#if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
+            case ':':
+                pszLastSep = psz + 1;
+                if (RTPATH_IS_SLASH(psz[1]))
+                    pszPath = psz + 1;
+                else
+                    pszPath = psz;
+                break;
+
+            case '\\':
+#endif
+            case '/':
+                pszLastSep = psz;
+                break;
+
+            /* the end */
+            case '\0':
+                if (!pszLastSep)
+                {
+                    /* no directory component */
+                    pszPath[0] = '.';
+                    pszPath[1] = '\0';
+                }
+                else if (pszLastSep == pszPath)
+                {
+                    /* only root. */
+                    pszLastSep[1] = '\0';
+                }
+                else
+                    pszLastSep[0] = '\0';
+                return;
+        }
+    }
+    /* will never get here */
+}
+