From c049506a56480d712ec3c31d251c2dde94456fc6 Mon Sep 17 00:00:00 2001
From: Dimitri Lozeve <delta.lozeve@gmail.com>
Date: Sat, 11 Jun 2016 14:01:40 +0200
Subject: [PATCH] Bitwise operation for manipulating IP addresses

---
 arp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arp.c b/arp.c
index 68b600f..d6cd8d1 100644
--- a/arp.c
+++ b/arp.c
@@ -254,7 +254,7 @@ int arp_scan(int sockfd, int ifindex, struct sockaddr_in *ipaddr, unsigned char
      current subnet */
   unsigned long ip_counter = ntohl(ipaddr->sin_addr.s_addr) & ntohl(netmask->sin_addr.s_addr);
   /* The maximum address on the subnet */
-  unsigned long ip_max = ip_counter + (~ntohl(netmask->sin_addr.s_addr));
+  unsigned long ip_max = ip_counter | (~ntohl(netmask->sin_addr.s_addr));
 
   while (ip_counter < ip_max) {
     char ip_string[16];