From: Colin Walters <walters@verbum.org>
Date: Wed, 17 Feb 2016 16:01:21 +0000 (-0500)
Subject: rofiles-fuse: Fix truncate call to not use O_CREAT
X-Git-Tag: archive/raspbian/2022.1-3+rpi1~1^2~4^2~55^2~22
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d3eee15f8421326450b05c2dcac1aea121a92073;p=ostree.git

rofiles-fuse: Fix truncate call to not use O_CREAT

I was getting a compilation error with the GCC hardening flags which
look for a missing mode with `O_CREAT`.  The right fix here is to drop
`O_CREAT`, as truncate() should throw `ENOENT` if the file doesn't
exist.
---

diff --git a/src/rofiles-fuse/main.c b/src/rofiles-fuse/main.c
index 004ad3d2..4337f00f 100644
--- a/src/rofiles-fuse/main.c
+++ b/src/rofiles-fuse/main.c
@@ -299,7 +299,7 @@ callback_truncate (const char *path, off_t size)
   path = ENSURE_RELPATH (path);
   VERIFY_WRITE(path);
 
-  fd = openat (basefd, path, O_RDWR | O_CREAT);
+  fd = openat (basefd, path, O_WRONLY);
   if (fd == -1)
     return -errno;