From: Dmitry V. Levin <ldv@altlinux.org>
Date: Sat, 6 Feb 2016 01:12:22 +0000 (+0000)
Subject: tests: extend coverage of sched_getaffinity syscall
X-Git-Tag: v4.12~582
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=48d97b6a833027775f732fe4e135726fa6e01016;p=strace

tests: extend coverage of sched_getaffinity syscall

* tests/sched_xetaffinity.c (main): Check decoding of pointer
to inaccessible cpu_set_t.
---

diff --git a/tests/sched_xetaffinity.c b/tests/sched_xetaffinity.c
index ef44c59d..8851a4af 100644
--- a/tests/sched_xetaffinity.c
+++ b/tests/sched_xetaffinity.c
@@ -1,4 +1,6 @@
 /*
+ * This file is part of sched_xetaffinity strace test.
+ *
  * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
  * All rights reserved.
  *
@@ -53,7 +55,7 @@ int
 main(void)
 {
 	unsigned int cpuset_size = 1;
-	pid_t pid = getpid();
+	const pid_t pid = getpid();
 
 	while (cpuset_size) {
 		assert(getaffinity(pid, cpuset_size, NULL) == -1);
@@ -70,6 +72,10 @@ main(void)
 	       pid, cpuset_size);
 
 	cpu_set_t *cpuset = tail_alloc(cpuset_size);
+	assert(getaffinity(pid, cpuset_size, cpuset + 1) == -1);
+	printf("sched_getaffinity(%d, %u, %p) = -1 EFAULT (%m)\n",
+		pid, cpuset_size, cpuset + 1);
+
 	assert(getaffinity(pid, cpuset_size, cpuset) == (int) cpuset_size);
 	printf("sched_getaffinity(%d, %u, [", pid, cpuset_size);
 	const char *sep;