From 6d54a8a93311b6bb0eedae79cf4bde01d0955708 Mon Sep 17 00:00:00 2001
From: Sam Varshavchik
Date: Sat, 15 Jan 2022 09:35:42 -0500
Subject: Set an ALARM timer to kill libcouriertls.

---
 tcpd/starttls.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'tcpd/starttls.c')

diff --git a/tcpd/starttls.c b/tcpd/starttls.c
index 76fcf3b..6e6229b 100644
--- a/tcpd/starttls.c
+++ b/tcpd/starttls.c
@@ -20,6 +20,7 @@
 #include	<stdlib.h>
 #include	<ctype.h>
 #include	<netdb.h>
+#include	<signal.h>
 #if HAVE_DIRENT_H
 #include <dirent.h>
 #define NAMLEN(dirent) strlen((dirent)->d_name)
@@ -526,6 +527,21 @@ static int connect_completed(ssl_handle ssl, int fd)
 	return (1);
 }
 
+static void child_handler()
+{
+	alarm(10);
+}
+
+static void trapexit()
+{
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
+
+	sa.sa_handler=child_handler;
+	sigaction(SIGCHLD, &sa, NULL);
+}
+
 static int dossl(int fd, int argn, int argc, char **argv)
 {
 	ssl_context ctx;
@@ -563,6 +579,7 @@ static int dossl(int fd, int argn, int argc, char **argv)
 	}
 
 	startclient(argn, argc, argv, fd, &stdin_fd, &stdout_fd);
+	trapexit();
 
 	if (username)
 		libmail_changeusername(username, 0);
-- 
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