[src/trunk]: src/tests/lib/libc/sys Add a test case to ensure that _lwp_creat...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/716982919555
branches:  trunk
changeset: 1010784:716982919555
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sat Jun 06 18:11:21 2020 +0000

description:
Add a test case to ensure that _lwp_create() fails with the
expected error code when a bad new-lwp-id pointer is passed.

diffstat:

 tests/lib/libc/sys/t_lwp_create.c |  27 ++++++++++++++++++++++++++-
 1 files changed, 26 insertions(+), 1 deletions(-)

diffs (48 lines):

diff -r 27787457f273 -r 716982919555 tests/lib/libc/sys/t_lwp_create.c
--- a/tests/lib/libc/sys/t_lwp_create.c Sat Jun 06 17:39:35 2020 +0000
+++ b/tests/lib/libc/sys/t_lwp_create.c Sat Jun 06 18:11:21 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_lwp_create.c,v 1.2 2012/05/22 09:23:39 martin Exp $ */
+/* $NetBSD: t_lwp_create.c,v 1.3 2020/06/06 18:11:21 thorpej Exp $ */
 
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -119,6 +119,30 @@
        ATF_REQUIRE(lid == the_lwp_id);
 }
 
+ATF_TC(lwp_create_bad_lid_ptr);
+ATF_TC_HEAD(lwp_create_bad_lid_ptr, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "Verify _lwp_create() fails as expected with bad lid pointer");
+}
+
+ATF_TC_BODY(lwp_create_bad_lid_ptr, tc)
+{
+       ucontext_t uc;
+       int error;
+       int serrno;
+       void *stack;
+       static const size_t ssize = 16*1024;
+
+       stack = malloc(ssize);
+       _lwp_makecontext(&uc, lwp_main_func, NULL, NULL, stack, ssize);
+
+       error = _lwp_create(&uc, 0, NULL);
+       serrno = errno;
+       ATF_REQUIRE(error == -1);
+       ATF_REQUIRE(serrno == EFAULT);
+}
+
 INVALID_UCONTEXT(generic, no_uc_cpu, "not setting cpu registers")
        uc->uc_flags &= ~_UC_CPU;
 }
@@ -206,6 +230,7 @@
 ATF_TP_ADD_TCS(tp)
 {
        ATF_TP_ADD_TC(tp, lwp_create_works);
+       ATF_TP_ADD_TC(tp, lwp_create_bad_lid_ptr);
        ATF_TP_ADD_TC(tp, lwp_create_generic_fail_no_uc_cpu);
 #ifdef __alpha__
        ATF_TP_ADD_TC(tp, lwp_create_alpha_fail_pslset);