From 007c77d92d6d761f020f0620b78e769f220cc22a Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Mon, 1 Jul 2024 18:43:51 +0000
Subject: missing save_errno dance inside non-terminal signal handler

---
 usr.bin/bgplg/misc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'usr.bin')

diff --git a/usr.bin/bgplg/misc.c b/usr.bin/bgplg/misc.c
index fc5665f9737..bf7f714865c 100644
--- a/usr.bin/bgplg/misc.c
+++ b/usr.bin/bgplg/misc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: misc.c,v 1.8 2017/12/18 09:12:49 job Exp $	*/
+/*	$OpenBSD: misc.c,v 1.9 2024/07/01 18:43:50 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org>
@@ -79,10 +79,13 @@ lg_help(struct cmd *cmds, char **argv)
 void
 lg_sig_alarm(int sig)
 {
+	int save_errno = errno;
+
 	if (child != -1) {
 		/* Forcibly kill the child, no excuse... */
 		kill(child, SIGKILL);
 	}
+	errno = save_errno;
 }
 
 int
-- 
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