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shared: Use O_EXCL with O_TMPFILE in open_tmpfile
author
Cristian RodrÃguez
<crrodriguez@opensuse.org>
Mon, 11 May 2015 18:01:37 +0000
(15:01 -0300)
committer
Sven Eden
<yamakuzure@gmx.net>
Tue, 14 Mar 2017 07:54:18 +0000
(08:54 +0100)
In this usecase, the file will never be materialized
with linkat().
src/shared/util.c
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diff --git
a/src/shared/util.c
b/src/shared/util.c
index e36389eaceac7c10fabf1ab44bab051c8178deed..275fdece1e70de1d9534179a925d191f8fa1ae5c 100644
(file)
--- a/
src/shared/util.c
+++ b/
src/shared/util.c
@@
-4839,7
+4839,7
@@
int open_tmpfile(const char *path, int flags) {
#ifdef O_TMPFILE
/* Try O_TMPFILE first, if it is supported */
- fd = open(path, flags|O_TMPFILE, S_IRUSR|S_IWUSR);
+ fd = open(path, flags|O_TMPFILE
|O_EXCL
, S_IRUSR|S_IWUSR);
if (fd >= 0)
return fd;
#endif