From 3303e9bc22fe7bd4d7636201153ef6bc7d95b134 Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@FreeBSD.org>
Date: Sat, 12 Sep 2020 11:24:36 +0000
Subject: [PATCH] Fix the length of probe packets when using UDP. Since
 https://svnweb.freebsd.org/changeset/base/365378 a raw socket is used for
 sending UDP probe packets instead of a UDP socket. So don't compensate for
 the UDP header anymore.

---
 usr.sbin/traceroute6/traceroute6.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/usr.sbin/traceroute6/traceroute6.c b/usr.sbin/traceroute6/traceroute6.c
index ae31491f0e17..f4e48b657f26 100644
--- a/usr.sbin/traceroute6/traceroute6.c
+++ b/usr.sbin/traceroute6/traceroute6.c
@@ -677,8 +677,6 @@ main(int argc, char *argv[])
 		    minlen, MAXPACKET);
 		exit(1);
 	}
-	if (useproto == IPPROTO_UDP)
-		datalen -= sizeof(struct udphdr);
 	if ((useproto == IPPROTO_SCTP) && (datalen & 3)) {
 		fprintf(stderr, 
 		    "traceroute6: packet size must be a multiple of 4.\n");