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| author |   Yuan Tan <tanyuan@tinylab.org> | 2023-08-01 23:40:23 +0800 |
|---|---|---|
| committer |   Willy Tarreau <w@1wt.eu> | 2023-08-23 05:17:07 +0200 |
| commit | 5c01259b1256ebc59bf6d64b396e7464f21c2583 (patch) | |
| tree | 37be3c2d7567b2272aeef950e63f9075078da743 /tools/testing/selftests/nolibc | |
| parent | tools/nolibc: add pipe() and pipe2() support (diff) | |
| download | wireguard-linux-5c01259b1256ebc59bf6d64b396e7464f21c2583.tar.xz wireguard-linux-5c01259b1256ebc59bf6d64b396e7464f21c2583.zip | |
selftests/nolibc: add testcase for pipe
Add a test case of pipe that sends and receives message in a single
process.
Suggested-by: Thomas Weißschuh <thomas@t-8ch.de>
Suggested-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/all/c5de2d13-3752-4e1b-90d9-f58cca99c702@t-8ch.de/
Signed-off-by: Yuan Tan <tanyuan@tinylab.org>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
[wt: fixed the "len" type to size_t to address a sign-compare warning
with upcoming patches]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'tools/testing/selftests/nolibc')
| -rw-r--r-- | tools/testing/selftests/nolibc/nolibc-test.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 4d39823a567e..7952107a2db8 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -768,6 +768,27 @@ end: return !!ret; } +static int test_pipe(void) +{ + const char *const msg = "hello, nolibc"; + int pipefd[2]; + char buf[32]; + size_t len; + + if (pipe(pipefd) == -1) + return 1; + + write(pipefd[1], msg, strlen(msg)); + close(pipefd[1]); + len = read(pipefd[0], buf, sizeof(buf)); + close(pipefd[0]); + + if (len != strlen(msg)) + return 1; + + return !!memcmp(buf, msg, len); +} + /* Run syscall tests between IDs <min> and <max>. * Return 0 on success, non-zero on failure. @@ -853,6 +874,7 @@ int run_syscall(int min, int max) CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break; CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); 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; CASE_TEST(poll_fault); EXPECT_SYSER(1, poll((void *)1, 1, 0), -1, EFAULT); break; |