tests: extend coverage of struct itimerspec

* tests/timer_xettime.c (main): Check decoding of NULL struct itimerspec
pointer.

diff --git a/tests/timer_xettime.c b/tests/timer_xettime.c
index 189b76cb454c8e89986f2a08f798b21ee90ca71f..7c691c641c67a43b981fd3565c9cf9dde347f7de 100644 (file)
--- a/tests/timer_xettime.c
+++ b/tests/timer_xettime.c
@@ -1,4 +1,6 @@
 /*
+ * This file is part of timer_xettime strace test.
+ *
  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
  * All rights reserved.
  *
@@ -41,6 +43,10 @@
 int
 main(void)
 {
+       syscall(__NR_timer_settime, 0xdefaced, TIMER_ABSTIME, NULL, NULL);
+       printf("timer_settime(%d, TIMER_ABSTIME, NULL, NULL)"
+              " = -1 EINVAL (%m)\n", 0xdefaced);
+
        int tid;
        struct sigevent sev = { .sigev_notify = SIGEV_NONE };