From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 29 Oct 2015 14:25:03 +0000 (+0100)
Subject: main: fix ip address copy length in send_arp_request
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=83dba5d525a3b7c2ae4fcb24961143bfcfc93ba7;p=oweals%2Frelayd.git

main: fix ip address copy length in send_arp_request

Detected by Coverity CID 1331153, 1331152, 1331125

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/main.c b/main.c
index 7f33d90..bd330ee 100644
--- a/main.c
+++ b/main.c
@@ -165,7 +165,7 @@ static void send_arp_request(struct relayd_interface *rif, const uint8_t *ipaddr
 	fill_arp_packet(&pkt, rif, rif->src_ip, ipaddr);
 
 	pkt.arp.arp_op = htons(ARPOP_REQUEST);
-	memcpy(pkt.arp.arp_spa, rif->src_ip, ETH_ALEN);
+	memcpy(pkt.arp.arp_spa, rif->src_ip, sizeof(pkt.arp.arp_spa));
 	memset(pkt.arp.arp_tha, 0, ETH_ALEN);
 	memset(pkt.eth.ether_dhost, 0xff, ETH_ALEN);