--- sendip.c.orig 2006-11-20 13:23:28.000000000 -0700
+++ sendip.c 2006-11-20 13:23:05.000000000 -0700
ip->ihl = (IPHDR_SIZE + optlen + 3) >> 2;
-#if defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD || defined OSTYPE_BSDI
+#if defined OSTYPE_DARWIN || defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD || defined OSTYPE_BSDI
ip->tot_len = packetsize;
htons((unsigned short) src_id);
-#if defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD | defined OSTYPE_BSDI
+#if defined OSTYPE_DARWIN || defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD | defined OSTYPE_BSDI
ip->frag_off |= more_fragments;