tests: extend coverage of struct sigevent

* tests/timer_create.c (main): Check decoding of NULL struct sigevent
pointer.  Check decoding of invalid sigev_notify value.

diff --git a/tests/timer_create.c b/tests/timer_create.c
index 380c978d5a9c787a2fa982dc677e88ed851c42fc..8f7d5cd88eae85743a3f03538d7e7a393948b242 100644 (file)
--- a/tests/timer_create.c
+++ b/tests/timer_create.c
@@ -1,4 +1,6 @@
 /*
+ * This file is part of timer_create strace test.
+ *
  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
  * All rights reserved.
  *
@@ -39,18 +41,29 @@
 int
 main(void)
 {
+       syscall(__NR_timer_create, CLOCK_REALTIME, NULL, NULL);
+       printf("timer_create(CLOCK_REALTIME, NULL, NULL) = -1 EFAULT (%m)\n");
+
        int tid[4] = {};
        struct_sigevent sev = {
-               .sigev_notify = SIGEV_NONE,
+               .sigev_notify = 0xdefaced,
                .sigev_signo = 0xfacefeed,
                .sigev_value.sival_ptr = (unsigned long) 0xdeadbeefbadc0ded
        };
 
+       syscall(__NR_timer_create, CLOCK_REALTIME, &sev, NULL);
+       printf("timer_create(CLOCK_REALTIME, {sigev_value={int=%d, ptr=%#lx}"
+              ", sigev_signo=%u, sigev_notify=%#x /* SIGEV_??? */}"
+              ", NULL) = -1 EINVAL (%m)\n",
+              sev.sigev_value.sival_int,
+              sev.sigev_value.sival_ptr,
+              sev.sigev_signo, sev.sigev_notify);
+
+       sev.sigev_notify = SIGEV_NONE;
        if (syscall(__NR_timer_create, CLOCK_REALTIME, &sev, &tid[0]))
                perror_msg_and_skip("timer_create CLOCK_REALTIME");
        printf("timer_create(CLOCK_REALTIME, {sigev_value={int=%d, ptr=%#lx}"
-              ", sigev_signo=%u, sigev_notify=SIGEV_NONE}"
-              ", [%d]) = 0\n",
+              ", sigev_signo=%u, sigev_notify=SIGEV_NONE}, [%d]) = 0\n",
               sev.sigev_value.sival_int,
               sev.sigev_value.sival_ptr,
               sev.sigev_signo, tid[0]);