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authorJohannes Berg <johannes.berg@intel.com>2023-10-05 23:57:34 +0300
committerKalle Valo <kvalo@kernel.org>2023-10-06 17:08:47 +0300
commit7d6904bf26b96ef087514cb7a8c50b62a4911c99 (patch)
tree2feaff8495d88c2102dc2e017b7afc5c58db02d6 /tools/testing/selftests/prctl/set-process-name.c
parent9418edf8ff01e7a4904aac1aca4864ecdea37593 (diff)
parent22061bfc57fe08c77141dc876b4af75603c4d61d (diff)
downloadlinux-7d6904bf26b96ef087514cb7a8c50b62a4911c99.tar.xz
Merge wireless into wireless-next
Resolve several conflicts, mostly between changes/fixes in wireless and the locking rework in wireless-next. One of the conflicts actually shows a bug in wireless that we'll want to fix separately. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org>
Diffstat (limited to 'tools/testing/selftests/prctl/set-process-name.c')
-rw-r--r--tools/testing/selftests/prctl/set-process-name.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/tools/testing/selftests/prctl/set-process-name.c b/tools/testing/selftests/prctl/set-process-name.c
new file mode 100644
index 000000000000..3bc5e0e09eb9
--- /dev/null
+++ b/tools/testing/selftests/prctl/set-process-name.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This test covers the PR_SET_NAME functionality of prctl calls
+ */
+
+#include <errno.h>
+#include <sys/prctl.h>
+#include <string.h>
+
+#include "../kselftest_harness.h"
+
+#define CHANGE_NAME "changename"
+#define EMPTY_NAME ""
+#define TASK_COMM_LEN 16
+
+int set_name(char *name)
+{
+ int res;
+
+ res = prctl(PR_SET_NAME, name, NULL, NULL, NULL);
+
+ if (res < 0)
+ return -errno;
+ return res;
+}
+
+int check_is_name_correct(char *check_name)
+{
+ char name[TASK_COMM_LEN];
+ int res;
+
+ res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
+
+ if (res < 0)
+ return -errno;
+
+ return !strcmp(name, check_name);
+}
+
+int check_null_pointer(char *check_name)
+{
+ char *name = NULL;
+ int res;
+
+ res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
+
+ return res;
+}
+
+TEST(rename_process) {
+
+ EXPECT_GE(set_name(CHANGE_NAME), 0);
+ EXPECT_TRUE(check_is_name_correct(CHANGE_NAME));
+
+ EXPECT_GE(set_name(EMPTY_NAME), 0);
+ EXPECT_TRUE(check_is_name_correct(EMPTY_NAME));
+
+ EXPECT_GE(set_name(CHANGE_NAME), 0);
+ EXPECT_LT(check_null_pointer(CHANGE_NAME), 0);
+}
+
+TEST_HARNESS_MAIN