From 2c53551735e4e9dc4b6ea664d3bfcd2a9dc479c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Wed, 14 Jul 2021 23:21:01 +0200
Subject: Exit when child (ssh) exits

---
 rtty.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rtty.c b/rtty.c
index f54d3b2..0eb26f8 100644
--- a/rtty.c
+++ b/rtty.c
@@ -1,6 +1,7 @@
 #include <err.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/select.h>
@@ -10,6 +11,12 @@
 #define INIT "export TERM=tty43 EDITOR=ed PAGER='pr -ptl23'\n"
 #define MAXBUF 2048
 
+void
+sigchld()
+{
+	exit(0);
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -18,6 +25,8 @@ main(int argc, char *argv[])
 	int fdin, fdout, i, n;
 	struct timeval tv;
 
+	signal(SIGCHLD, sigchld);
+
 	/* Create named pipes. */
 	sprintf(in, "/var/tmp/rtty.in.%d", getpid());
 	sprintf(out, "/var/tmp/rtty.out.%d", getpid());
-- 
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