From c5553788bd572ef7b42c21524b602cda2cbb339a Mon Sep 17 00:00:00 2001
From: Leah Neukirchen <leah@vuxu.org>
Date: Tue, 12 Apr 2022 19:00:29 +0200
Subject: restore errno in error handler

---
 reap.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/reap.c b/reap.c
index 36e3884..94ed3bd 100644
--- a/reap.c
+++ b/reap.c
@@ -37,9 +37,15 @@ void
 start_slaying(int sig)
 {
 	(void)sig;
+
+	int old_errno = errno;
+
 	if (verbose)
-		write(2, "reap: slaying\n", 14);  // async safe
+		write(2, "reap: slaying\n", 14);
+
 	do_slay = 1;
+
+	errno = old_errno;
 }
 
 // needs CONFIG_PROC_CHILDREN=y (since Linux 4.2), most modern distros have this
-- 
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