To avoid possible failure if any parent set any initial signal
disposition as SIG_IGN (for instance if the testcase is issued
with nohup).
Checked on x86_64-linux-gnu.
Tested-by: Florian Weimer <fweimer@redhat.com>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
static void
do_test_signals (void)
{
+ /* Ensure the initial signal disposition, ignore EINVAL for internal
+ signal such as SIGCANCEL. */
+ for (int sig = 1; sig < _NSIG; ++sig)
+ sigaction (sig, &(struct sigaction) { .sa_handler = SIG_DFL,
+ .sa_flags = 0 }, NULL);
+
{
/* Check if all signals handler are set to SIG_DFL on spawned process. */
spawn_signal_test ("SIG_DFL", NULL);