From a25bb666ddff27f2a541a29aff759081961b9de1 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 17 Dec 2013 17:50:42 +0000
Subject: [PATCH] Properly check strtol() results when paring values as
 integers

---
 options.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/options.c b/options.c
index c212218..7e62ca6 100644
--- a/options.c
+++ b/options.c
@@ -142,9 +142,10 @@ fw3_parse_bool(void *ptr, const char *val, bool is_list)
 bool
 fw3_parse_int(void *ptr, const char *val, bool is_list)
 {
-	int n = strtol(val, NULL, 0);
+	char *e;
+	int n = strtol(val, &e, 0);
 
-	if (errno == ERANGE || errno == EINVAL)
+	if (e == val || *e)
 		return false;
 
 	*((int *)ptr) = n;
-- 
2.25.1