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.

4 files changed, 8 insertions, 8 deletions

diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 381e219390..31074eb5f8 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -1632,7 +1632,7 @@ static int setup_keys(void) {
         n /= arg_interval;
 
         safe_close(fd);
-        fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC);
+        fd = mkostemp_safe(k);
         if (fd < 0) {
                 r = log_error_errno(fd, "Failed to open %s: %m", k);
                 goto finish;
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;
diff --git a/src/journal/test-compress.c b/src/journal/test-compress.c
index 68c9a4d76c..00e5222a1c 100644
--- a/src/journal/test-compress.c
+++ b/src/journal/test-compress.c
@@ -167,7 +167,7 @@ static void test_compress_stream(int compression,
 
         log_debug("/* test compression */");
 
-        assert_se((dst = mkostemp_safe(pattern, O_RDWR|O_CLOEXEC)) >= 0);
+        assert_se((dst = mkostemp_safe(pattern)) >= 0);
 
         assert_se(compress(src, dst, -1) == 0);
 
@@ -178,7 +178,7 @@ static void test_compress_stream(int compression,
 
         log_debug("/* test decompression */");
 
-        assert_se((dst2 = mkostemp_safe(pattern2, O_RDWR|O_CLOEXEC)) >= 0);
+        assert_se((dst2 = mkostemp_safe(pattern2)) >= 0);
 
         assert_se(stat(srcfile, &st) == 0);
 
diff --git a/src/journal/test-mmap-cache.c b/src/journal/test-mmap-cache.c
index 009aabf55e..0ad49aeb5f 100644
--- a/src/journal/test-mmap-cache.c
+++ b/src/journal/test-mmap-cache.c
@@ -36,15 +36,15 @@ int main(int argc, char *argv[]) {
 
         assert_se(m = mmap_cache_new());
 
-        x = mkostemp_safe(px, O_RDWR|O_CLOEXEC);
+        x = mkostemp_safe(px);
         assert_se(x >= 0);
         unlink(px);
 
-        y = mkostemp_safe(py, O_RDWR|O_CLOEXEC);
+        y = mkostemp_safe(py);
         assert_se(y >= 0);
         unlink(py);
 
-        z = mkostemp_safe(pz, O_RDWR|O_CLOEXEC);
+        z = mkostemp_safe(pz);
         assert_se(z >= 0);
         unlink(pz);