[PATCH 2/3] selftests/nolibc: validate ENOTDIR return values from opendir()/fdopendir()

[Thomas Weißschuh]

Make sure that ENOTDIR is detected already during directory opening.

Signed-off-by: Thomas Weißschuh <li...@weissschuh.net>
---
 tools/testing/selftests/nolibc/nolibc-test.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c 
b/tools/testing/selftests/nolibc/nolibc-test.c
index 0a8fe5100b7f..7091f63f3b25 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -1711,6 +1711,7 @@ int run_syscall(int min, int max)
                CASE_TEST(execve_root);       EXPECT_SYSER(1, execve("/", 
(char*[]){ [0] = (char []){"/"}, [1] = NULL }, NULL), -1, EACCES); break;
                CASE_TEST(fchdir_stdin);      EXPECT_SYSER(1, 
fchdir(STDIN_FILENO), -1, ENOTDIR); break;
                CASE_TEST(fchdir_badfd);      EXPECT_SYSER(1, fchdir(-1), -1, 
EBADF); break;
+               CASE_TEST(fdopendir_notdir);  EXPECT_SYSER(1, 
(uintptr_t)fdopendir(STDIN_FILENO), (uintptr_t)NULL, ENOTDIR); break;
                CASE_TEST(file_stream);       EXPECT_SYSZR(1, 
test_file_stream()); break;
                CASE_TEST(file_stream_wsr);   EXPECT_SYSZR(1, 
test_file_stream_wsr()); break;
                CASE_TEST(fork);              EXPECT_SYSZR(1, 
test_fork(FORK_STANDARD)); break;
@@ -1739,6 +1740,7 @@ int run_syscall(int min, int max)
                CASE_TEST(open_blah);         EXPECT_SYSER(1, tmp = 
open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); 
break;
                CASE_TEST(openat_dir);        EXPECT_SYSZR(1, test_openat()); 
break;
                CASE_TEST(open_mode);         EXPECT_SYSZR(1, 
test_open_mode()); break;
+               CASE_TEST(opendir_notdir);    EXPECT_SYSER(1, 
(uintptr_t)opendir("/dev/stdin"), (uintptr_t)NULL, ENOTDIR); break;
                CASE_TEST(pipe);              EXPECT_SYSZR(1, test_pipe()); 
break;
                CASE_TEST(poll_null);         EXPECT_SYSZR(1, poll(NULL, 0, 
0)); break;
                CASE_TEST(poll_stdout);       EXPECT_SYSNE(1, ({ struct pollfd 
fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break;

-- 
2.55.0