1 files changed, 89 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..f861864e
--- /dev/null
+++ b/src/VBox/Runtime/common/path/RTPathStripFilename.cpp
@@ -0,0 +1,89 @@
+/* $Id: RTPathStripFilename.cpp $ */
+/** @file
+ * IPRT - RTPathStripFilename
+ */
+
+/*
+ * Copyright (C) 2006-2020 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 "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 */
+}
+