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author | Johannes Berg <johannes.berg@intel.com> | 2023-10-05 23:57:34 +0300 |
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committer | Kalle Valo <kvalo@kernel.org> | 2023-10-06 17:08:47 +0300 |
commit | 7d6904bf26b96ef087514cb7a8c50b62a4911c99 (patch) | |
tree | 2feaff8495d88c2102dc2e017b7afc5c58db02d6 /tools/testing/selftests/prctl/set-process-name.c | |
parent | 9418edf8ff01e7a4904aac1aca4864ecdea37593 (diff) | |
parent | 22061bfc57fe08c77141dc876b4af75603c4d61d (diff) | |
download | linux-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.c | 62 |
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 |