Call open(.., .., mode) when O_TMPFILE is specified

Test case by Martin Pitt.

Author: Cemil Azizoglu

NEWS

@@ -2,6 +2,7 @@
 ------------------
 - /umockdev-run/integration/input-evtest-evemu test: Be more liberal in parsing
   evtest's SYN event output, as it changed in 1.32.
+- preload: Properly wrap open() with O_TMPFILE. Thanks Cemil Azizoglu.
 
 0.8.6 (2014-09-01)
 ------------------

src/libumockdev-preload.c

@@ -1082,7 +1082,7 @@ int prefix ## open ## suffix (const char *path, int flags, ...)	    \
 	return -1;						    \
     }								    \
     DBG(DBG_PATH, "testbed wrapped " #prefix "open" #suffix "(%s) -> %s\n", path, p); \
-    if (flags & O_CREAT) {					    \
+    if (flags & (O_CREAT | O_TMPFILE)) {			    \
 	mode_t mode;						    \
 	va_list ap;						    \
 	va_start(ap, flags);				    	    \

tests/test-umockdev.c

@@ -18,6 +18,9 @@
  * along with this program; If not, see <http://www.gnu.org/licenses/>.
  */
 
+/* for O_TMPFILE */
+#define _GNU_SOURCE
+
 #include <glib.h>
 #include <glib/gstdio.h>
 #include <string.h>
@@ -1064,6 +1067,14 @@ t_testbed_dev_access(UMockdevTestbedFixture * fixture, gconstpointer data)
         close(fd);
     }
 
+    /* open() with O_TMPFILE */
+    errno = 0;
+    fd = g_open("/dev", O_TMPFILE|O_RDWR, 0644);
+    g_assert_cmpint(errno, ==, 0);
+    g_assert_cmpint(fd, >, 0);
+    g_assert_cmpint(write(fd, "hello", 5), ==, 5);
+    close(fd);
+
     g_free(devdir);
 }