1 files changed, 107 insertions, 0 deletions
diff --git a/src/VBox/Runtime/generic/RTPathIsSame-generic.cpp b/src/VBox/Runtime/generic/RTPathIsSame-generic.cpp
new file mode 100644
index 00000000..3f8a20bb
--- /dev/null
+++ b/src/VBox/Runtime/generic/RTPathIsSame-generic.cpp
@@ -0,0 +1,107 @@
+/* $Id: RTPathIsSame-generic.cpp $ */
+/** @file
+ * IPRT - Assertions, generic RTPathIsSame.
+ */
+
+/*
+ * Copyright (C) 2013-2023 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 <iprt/path.h>
+#include "internal/iprt.h"
+
+#include <iprt/err.h>
+#include <iprt/string.h>
+
+
+RTDECL(int) RTPathIsSame(const char *pszPath1, const char *pszPath2)
+{
+    /*
+     * Simple checks based on the path values.
+     */
+    if (pszPath1 == pszPath2)
+        return true;
+    if (!pszPath1)
+        return false;
+    if (!pszPath2)
+        return false;
+    if (!strcmp(pszPath1, pszPath2))
+        return true;
+
+    /*
+     * If the files exist, try use the attributes.
+     */
+    RTFSOBJINFO ObjInfo1;
+    int rc = RTPathQueryInfoEx(pszPath1, &ObjInfo1, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK);
+    if (RT_SUCCESS(rc))
+    {
+        RTFSOBJINFO ObjInfo2;
+        rc = RTPathQueryInfoEx(pszPath2, &ObjInfo2, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK);
+        if (RT_SUCCESS(rc))
+        {
+            if ((ObjInfo1.Attr.fMode & RTFS_TYPE_MASK) != (ObjInfo2.Attr.fMode & RTFS_TYPE_MASK))
+                return false;
+            if (ObjInfo1.Attr.u.Unix.INodeIdDevice       != ObjInfo2.Attr.u.Unix.INodeIdDevice)
+                return false;
+            if (ObjInfo1.Attr.u.Unix.INodeId             != ObjInfo2.Attr.u.Unix.INodeId)
+                return false;
+            if (ObjInfo1.Attr.u.Unix.GenerationId        != ObjInfo2.Attr.u.Unix.GenerationId)
+                return false;
+            if (   ObjInfo1.Attr.u.Unix.INodeIdDevice != 0
+                && ObjInfo1.Attr.u.Unix.INodeId       != 0)
+                return true;
+        }
+    }
+
+    /*
+     * Fallback, compare absolute/real paths. Return failure on paths that are
+     * too long.
+     */
+    char szPath1[RTPATH_MAX];
+    rc = RTPathAbs(pszPath1, szPath1, sizeof(szPath1));
+    AssertRCReturn(rc, VERR_FILENAME_TOO_LONG);
+
+    char szPath2[RTPATH_MAX];
+    rc = RTPathAbs(pszPath2, szPath2, sizeof(szPath2)); AssertRC(rc);
+    AssertRCReturn(rc, VERR_FILENAME_TOO_LONG);
+
+    if (RTPathCompare(szPath1, szPath2) == 0)
+        return true;
+
+    /** @todo Relsolve any symbolic links in the paths. Too lazy for that right
+     *        now. */
+    return false;
+}
+RT_EXPORT_SYMBOL(RTPathIsSame);
+