The branch main has been updated by des: URL: https://cgit.FreeBSD.org/src/commit/?id=48368f702423742b2a7dff7ad3191625e8bf26f0
commit 48368f702423742b2a7dff7ad3191625e8bf26f0 Author: Dag-Erling Smørgrav <[email protected]> AuthorDate: 2026-03-09 20:41:04 +0000 Commit: Dag-Erling Smørgrav <[email protected]> CommitDate: 2026-03-09 20:41:04 +0000 system(3): Address test robustness issue Don't assume that SIGINT and SIGQUIT are set to SIG_DFL at the start of the test. Instead, retrieve their current dispositions and verify that they are restored at the end of the test. MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D55709 --- lib/libc/tests/stdlib/system_test.c | 38 ++++++++++++++++++++++++++----------- 1 file changed, 27 insertions(+), 11 deletions(-) diff --git a/lib/libc/tests/stdlib/system_test.c b/lib/libc/tests/stdlib/system_test.c index b6a31583d52d..cb6ecdb28065 100644 --- a/lib/libc/tests/stdlib/system_test.c +++ b/lib/libc/tests/stdlib/system_test.c @@ -92,6 +92,12 @@ system_thread(void *arg) return ((void *)(intptr_t)system(cmd)); } +static inline int +sigcmpset(const sigset_t *a, const sigset_t *b) +{ + return (memcmp(a, b, sizeof(sigset_t))); +} + ATF_TC(system_concurrent); ATF_TC_HEAD(system_concurrent, tc) { @@ -99,7 +105,8 @@ ATF_TC_HEAD(system_concurrent, tc) } ATF_TC_BODY(system_concurrent, tc) { -#define N 3 + enum { N = 3 }; + struct sigaction sigint, sigquit, sigact; sigset_t normset, sigset; pthread_t thr[N]; char fn[8]; @@ -119,8 +126,10 @@ ATF_TC_BODY(system_concurrent, tc) ATF_REQUIRE_EQ(0, symlink(fn, fn)); } - /* Get the current and expected signal mask */ - sigprocmask(0, NULL, &normset); + /* Save the current signal dispositions */ + ATF_REQUIRE_EQ(0, sigaction(SIGINT, NULL, &sigint)); + ATF_REQUIRE_EQ(0, sigaction(SIGINT, NULL, &sigquit)); + ATF_REQUIRE_EQ(0, sigprocmask(0, NULL, &normset)); /* Spawn threads which block on these files */ for (int i = 0; i < N; i++) { @@ -140,10 +149,12 @@ ATF_TC_BODY(system_concurrent, tc) /* Release the locks */ for (int i = 0; i < N; i++) { /* Check the signal dispositions */ - ATF_CHECK_EQ(SIG_IGN, signal(SIGINT, SIG_IGN)); - ATF_CHECK_EQ(SIG_IGN, signal(SIGQUIT, SIG_IGN)); + ATF_REQUIRE_EQ(0, sigaction(SIGQUIT, NULL, &sigact)); + ATF_CHECK_EQ(SIG_IGN, sigact.sa_handler); + ATF_REQUIRE_EQ(0, sigaction(SIGINT, NULL, &sigact)); + ATF_CHECK_EQ(SIG_IGN, sigact.sa_handler); #ifndef PROCMASK_IS_THREADMASK - sigprocmask(0, NULL, &sigset); + ATF_REQUIRE_EQ(0, sigprocmask(0, NULL, &sigset)); ATF_CHECK(sigismember(&sigset, SIGCHLD)); #endif @@ -156,11 +167,16 @@ ATF_TC_BODY(system_concurrent, tc) } /* Check the signal dispositions */ - ATF_CHECK_EQ(SIG_DFL, signal(SIGINT, SIG_DFL)); - ATF_CHECK_EQ(SIG_DFL, signal(SIGQUIT, SIG_DFL)); - sigprocmask(0, NULL, &sigset); - ATF_CHECK_EQ(0, memcmp(&sigset, &normset, sizeof(sigset_t))); -#undef N + ATF_REQUIRE_EQ(0, sigaction(SIGQUIT, NULL, &sigact)); + ATF_CHECK_EQ(sigquit.sa_handler, sigact.sa_handler); + ATF_CHECK_EQ(sigquit.sa_flags, sigact.sa_flags); + ATF_CHECK_EQ(0, sigcmpset(&sigquit.sa_mask, &sigact.sa_mask)); + ATF_REQUIRE_EQ(0, sigaction(SIGINT, NULL, &sigact)); + ATF_CHECK_EQ(sigint.sa_handler, sigact.sa_handler); + ATF_CHECK_EQ(sigint.sa_flags, sigact.sa_flags); + ATF_CHECK_EQ(0, sigcmpset(&sigint.sa_mask, &sigact.sa_mask)); + ATF_REQUIRE_EQ(0, sigprocmask(0, NULL, &sigset)); + ATF_CHECK_EQ(0, sigcmpset(&sigset, &normset)); } ATF_TP_ADD_TCS(tp)
