From b46a0720ae20931f2bdc5e0f01155d2aae2a45ce Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Mon, 20 Sep 2021 08:13:28 +0200
Subject: [PATCH] atomic_open_or_create_file: catch unsupported flag
 OFlag::O_DIRECTORY

---
 proxmox/src/tools/fs.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proxmox/src/tools/fs.rs b/proxmox/src/tools/fs.rs
index 6ae4c8af..3283d04e 100644
--- a/proxmox/src/tools/fs.rs
+++ b/proxmox/src/tools/fs.rs
@@ -205,6 +205,10 @@ pub fn atomic_open_or_create_file<P: AsRef<Path>>(
         bail!("open {:?} failed - unsupported OFlag O_TMPFILE", path);
     }
 
+    if oflag.contains(OFlag::O_DIRECTORY) {
+        bail!("open {:?} failed - unsupported OFlag O_DIRECTORY", path);
+    }
+
     oflag.remove(OFlag::O_CREAT); // we want to handle CREAT ourselfes
 
     // Note: 'mode' is ignored, because oflag does not contain O_CREAT or O_TMPFILE