From: Jan Klemkow <j.klemkow@wemelug.de>
Date: Wed, 29 Apr 2020 22:10:02 +0000 (+0200)
Subject: replace exit(3) by _exit(2) in signal handler sigchld()
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=d6ea0a1a61853dd892029a7126e7fdb70c371878;p=st.git

replace exit(3) by _exit(2) in signal handler sigchld()

exit(3) is not async-signal-safe but, _exit(2) is.
This change prevents st to crash and dump core.
---

diff --git a/st.c b/st.c
index 0ce6ac2..2bf133f 100644
--- a/st.c
+++ b/st.c
@@ -730,7 +730,7 @@ sigchld(int a)
 		die("child exited with status %d\n", WEXITSTATUS(stat));
 	else if (WIFSIGNALED(stat))
 		die("child terminated due to signal %d\n", WTERMSIG(stat));
-	exit(0);
+	_exit(0);
 }
 
 void