From 9ab82ecedf26742a60793df4e0a3af960803aa9f Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Thu, 6 Aug 2015 21:10:36 +0000
Subject: [PATCH] Fix raw packet sending on FreeBSD 10.0 and later.

See https://svnweb.freebsd.org/base?view=revision&revision=241913 for
the change. Closes #196. Fixes #50.
---
 CHANGELOG             | 4 ++++
 libnetutil/netutil.cc | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index ba244deab..dede1fa80 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,9 @@
 # Nmap Changelog ($Id$); -*-text-*-
 
+o [GH#196] Fix raw packet sending on FreeBSD 10.0 and later. FreeBSD changed
+  byte order of the IPv4 stack, so SYN scan and other raw packet functions were
+  broken. [Edward Napierała] Also reported in [GH#50] by Olli Hauer.
+
 o [NSE] Added script http-svn-enum. Enumerates users of a Subversion
   repostory by examinning commit logs. [Gyanendra Mishra]
 
diff --git a/libnetutil/netutil.cc b/libnetutil/netutil.cc
index f4c31184b..e7dca1913 100644
--- a/libnetutil/netutil.cc
+++ b/libnetutil/netutil.cc
@@ -3604,7 +3604,7 @@ int send_ip_packet_sd(int sd, const struct sockaddr_in *dst,
      must deal with it here rather than when building the packet,
      because they should be in NBO when I'm sending over raw
      ethernet */
-#if FREEBSD || BSDI || NETBSD || DEC || MACOSX
+#if (defined(FREEBSD) && (__FreeBSD_version < 1000022)) || BSDI || NETBSD || DEC || MACOSX
   ip->ip_len = ntohs(ip->ip_len);
   ip->ip_off = ntohs(ip->ip_off);
 #endif
@@ -3614,7 +3614,7 @@ int send_ip_packet_sd(int sd, const struct sockaddr_in *dst,
                (int) sizeof(struct sockaddr_in));
 
   /* Undo the byte order switching. */
-#if FREEBSD || BSDI || NETBSD || DEC || MACOSX
+#if (defined(FREEBSD) && (__FreeBSD_version < 1000022)) || BSDI || NETBSD || DEC || MACOSX
   ip->ip_len = htons(ip->ip_len);
   ip->ip_off = htons(ip->ip_off);
 #endif