From a603c87b0251c5b6077c28864b1aeb21c40f4086 Mon Sep 17 00:00:00 2001
From: eadler <eadler@FreeBSD.org>
Date: Mon, 22 Oct 2012 03:07:05 +0000
Subject: Check the return error of set[e][ug]id. While this can never fail in
 the current version of FreeBSD, this isn't guarenteed by the API. Custom
 security modules, or future implementations of the setuid and setgid may
 fail.

Submitted by:	Erik Cederstrand
Approved by:	cperciva
MFC after:	3 days
---
 usr.sbin/kgmon/kgmon.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'usr.sbin/kgmon')

diff --git a/usr.sbin/kgmon/kgmon.c b/usr.sbin/kgmon/kgmon.c
index d5cdf96..c691d6e 100644
--- a/usr.sbin/kgmon/kgmon.c
+++ b/usr.sbin/kgmon/kgmon.c
@@ -90,7 +90,9 @@ main(int argc, char **argv)
 	struct kvmvars kvmvars;
 	char *system, *kmemf;
 
-	seteuid(getuid());
+	if (seteuid(getuid()) != 0) {
+		err(1, "seteuid failed\n");
+	}
 	kmemf = NULL;
 	system = NULL;
 	while ((ch = getopt(argc, argv, "M:N:Bbhpr")) != -1) {
-- 
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