From e4bf599cc2019f436f6251b6dbd8aac2876f20b8 Mon Sep 17 00:00:00 2001
From: Duncaen <mail@duncano.de>
Date: Thu, 2 Jun 2016 16:29:01 +0200
Subject: [PATCH] check return value of setresuid

---
 doas.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doas.c b/doas.c
index 6f644ec..3e15824 100644
--- a/doas.c
+++ b/doas.c
@@ -295,7 +295,9 @@ checkconfig(const char *confpath, int argc, char **argv,
 {
 	struct rule *rule;
 
-	setresuid(uid, uid, uid);
+	if (setresuid(uid, uid, uid) != 0)
+		err(1, "setresuid");
+
 	parseconfig(confpath, 0);
 	if (!argc)
 		exit(0);
-- 
2.39.2