From 92f8f7e3a3a5a42768c18c1f3d4d8f9f98150c61 Mon Sep 17 00:00:00 2001
From: Ondrej Filip <feela@network.cz>
Date: Tue, 24 Apr 2012 16:31:17 +0200
Subject: [PATCH] Small bug in detection of class-A networks.

---
 lib/ipv4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ipv4.c b/lib/ipv4.c
index 8488a286..751351ca 100644
--- a/lib/ipv4.c
+++ b/lib/ipv4.c
@@ -60,7 +60,7 @@ ipv4_class_mask(u32 a)
 
 	if (a < 0x80000000)
 		m = 0xff000000;
-	if (a < 0xc0000000)
+	else if (a < 0xc0000000)
 		m = 0xffff0000;
 	else
 		m = 0xffffff00;