From 94a5043e03d3d83b661af64c3723d5f775c10706 Mon Sep 17 00:00:00 2001 From: zhangqiang Date: Fri, 1 Jul 2022 01:26:09 +0800 Subject: [PATCH 3/6] =?UTF-8?q?=20=E6=8C=89=E7=85=A7POSIX=E6=A0=87?= =?UTF-8?q?=E5=87=86,sigaction=E5=87=BD=E6=95=B0act=3D=3DNULL,=E8=B0=83?= =?UTF-8?q?=E7=94=A8=E8=80=85=E5=8F=AF=E4=BB=A5=E9=80=9A=E8=BF=87oldact?= =?UTF-8?q?=E8=8E=B7=E5=8F=96=E4=B9=8B=E5=89=8D=E7=9A=84=E4=BF=A1=E5=8F=B7?= =?UTF-8?q?action=20=E6=8C=89=E7=85=A7lstack=E7=9A=84=E7=90=86=E8=A7=A3,?= =?UTF-8?q?=E5=AE=83HOOK=20sigaction=E5=87=BD=E6=95=B0,=E6=98=AF=E5=BD=93?= =?UTF-8?q?=E8=B0=83=E7=94=A8=E8=80=85=E8=AE=BE=E7=BD=AE=E6=96=B0=E7=9A=84?= =?UTF-8?q?=E4=BF=A1=E5=8F=B7=E5=87=BD=E6=95=B0=E4=B8=BA=E7=BC=BA=E7=9C=81?= =?UTF-8?q?=E5=A4=84=E7=BD=AE=E8=A1=8C=E4=B8=BA=E6=97=B6,=E5=AF=B9?= =?UTF-8?q?=E6=8C=87=E5=AE=9A=E4=BF=A1=E5=8F=B7=E8=BF=9B=E8=A1=8C=E6=8B=A6?= =?UTF-8?q?=E6=88=AA,=E8=AF=A5=E6=94=B9=E5=8A=A8=E4=B8=8D=E5=BD=B1?= =?UTF-8?q?=E5=93=8D=E5=8E=9F=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/lstack/api/lstack_signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lstack/api/lstack_signal.c b/src/lstack/api/lstack_signal.c index 87cbdda..4dba472 100644 --- a/src/lstack/api/lstack_signal.c +++ b/src/lstack/api/lstack_signal.c @@ -78,7 +78,7 @@ int lstack_sigaction(int sig_num, const struct sigaction *action, struct sigacti { struct sigaction new_action; - if ((match_hijack_signal(sig_num) != 0) && (action->sa_handler == SIG_DFL)) { + if ((match_hijack_signal(sig_num) != 0) && (action && action->sa_handler == SIG_DFL)) { new_action = *action; new_action.sa_flags |= SA_RESETHAND; new_action.sa_handler = lstack_sig_default_handler; -- 2.23.0