--- sendip.c.orig 2003-08-01 21:28:07.000000000 +0800 +++ sendip.c 2015-12-22 23:16:39.296072000 +0800 @@ -48,12 +48,12 @@ ip->ihl = (IPHDR_SIZE + optlen + 3) >> 2; ip->tos = ip_tos; -#if defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD || defined OSTYPE_BSDI -/* FreeBSD */ +#if defined OSTYPE_NETBSD || defined OSTYPE_BSDI /* NetBSD */ ip->tot_len = packetsize; #else /* Linux */ +/* FreeBSD */ /* OpenBSD */ ip->tot_len = htons(packetsize); #endif @@ -73,13 +73,13 @@ htons((unsigned short) src_id); } -#if defined OSTYPE_FREEBSD || defined OSTYPE_NETBSD | defined OSTYPE_BSDI -/* FreeBSD */ +#if defined OSTYPE_NETBSD | defined OSTYPE_BSDI /* NetBSD */ ip->frag_off |= more_fragments; ip->frag_off |= fragoff >> 3; #else /* Linux */ +/* FreeBSD */ /* OpenBSD */ ip->frag_off |= htons(more_fragments); ip->frag_off |= htons(fragoff >> 3); /* shift three flags bit */