From: russor <russor@whatsapp.com>
Date: Mon, 18 Apr 2016 20:50:25 +0000 (-0700)
Subject: endian neutral placement of alternate checksum
X-Git-Tag: v0.87~12^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=22488b71fb312967263a6e808ccab97186d5ec7f;p=thirdparty%2Fmtr.git

endian neutral placement of alternate checksum
---

diff --git a/net.c b/net.c
index 05d707e..66319e2 100644
--- a/net.c
+++ b/net.c
@@ -692,8 +692,8 @@ void net_send_query(int index)
         udpp->protocol = ip->protocol;
         udpp->len = udp->length;
         checksum_result = udp_checksum(udpp, udp, sizeof(struct UDPv4PHeader), abs(packetsize) - iphsize, 1);
-        packet[iphsize + sizeof(struct UDPHeader)] = checksum_result & 0xff;
-        packet[iphsize + sizeof(struct UDPHeader) + 1] = checksum_result >> 8;
+        packet[iphsize + sizeof(struct UDPHeader)] = ((char *)&checksum_result)[0];
+        packet[iphsize + sizeof(struct UDPHeader) + 1] = ((char *)&checksum_result)[1];
       } else if (ip->saddr) {
         udpp = (struct UDPv4PHeader *)(malloc(sizeof(struct UDPv4PHeader)));
         udpp->saddr = ip->saddr;