fileio: simplify mkostemp_safe() (#4090)

According to its manual page, flags given to mkostemp(3) shouldn't include
O_RDWR, O_CREAT or O_EXCL flags as these are always included. Beyond
those, the only flag that all callers (except a few tests where it
probably doesn't matter) use is O_CLOEXEC, so set that unconditionally.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/journal/test-catalog.c b/src/journal/test-catalog.c
index 898c876450..b7d9e7bffa 100644
--- a/src/journal/test-catalog.c
+++ b/src/journal/test-catalog.c
@@ -55,7 +55,7 @@ static Hashmap * test_import(const char* contents, ssize_t size, int code) {
 
         assert_se(h = hashmap_new(&catalog_hash_ops));
 
-        fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
+        fd = mkostemp_safe(name);
         assert_se(fd >= 0);
         assert_se(write(fd, contents, size) == size);
 
@@ -182,7 +182,7 @@ static void test_catalog_update(void) {
         static char name[] = "/tmp/test-catalog.XXXXXX";
         int r;
 
-        r = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
+        r = mkostemp_safe(name);
         assert_se(r >= 0);
 
         database = name;