Allow hping to handle pppoe interfaces. While there, improve license marker

and add a note about PF running on the sending host to DESCR.

net/hping/Makefile

@@ -1,15 +1,15 @@
-# $OpenBSD: Makefile,v 1.27 2013/03/11 11:35:47 espie Exp $
+# $OpenBSD: Makefile,v 1.28 2013/04/02 15:15:53 sthen Exp $
 
 COMMENT=	TCP/UDP ping/traceroute tool
 
 DISTNAME=	hping2.0.0-rc3
 PKGNAME=	hping-2.0.0rc3
-REVISION=	1
+REVISION=	2
 CATEGORIES=	net
 
 HOMEPAGE=	http://www.hping.org/
 
-# GPL
+# GPLv2
 PERMIT_PACKAGE_CDROM=	Yes
 
 WANTLIB=		c pcap

net/hping/patches/patch-getlhs_c

@@ -0,0 +1,11 @@
+$OpenBSD: patch-getlhs_c,v 1.1 2013/04/02 15:15:53 sthen Exp $
+--- getlhs.c.orig	Tue Apr  2 16:09:52 2013
++++ getlhs.c	Tue Apr  2 16:10:57 2013
+@@ -62,6 +62,7 @@ int get_linkhdr_size(char *ifname)
+ #ifdef DLT_ATM_CLIP
+ 	case DLT_ATM_CLIP:
+ #endif
++	case DLT_PPP_ETHER:
+ 		linkhdr_size = 8;
+ 		break;
+ #ifdef DLT_C_HDLC

net/hping/patches/patch-send_c

@@ -1,7 +1,7 @@
-$OpenBSD: patch-send_c,v 1.1 2005/04/24 22:59:08 alek Exp $
---- send.c.orig	Sun Apr 24 20:29:06 2005
-+++ send.c	Sun Apr 24 20:30:24 2005
-@@ -41,7 +41,7 @@ static void select_next_random_dest(void
+$OpenBSD: patch-send_c,v 1.2 2013/04/02 15:15:53 sthen Exp $
+--- send.c.orig	Fri Aug  1 15:53:08 2003
++++ send.c	Tue Apr  2 15:44:57 2013
+@@ -41,7 +41,7 @@ static void select_next_random_dest(void)
  	unsigned char ra[4];
  	char a[4], b[4], c[4], d[4];
  

net/hping/pkg/DESCR

@@ -14,3 +14,6 @@ stuff you can do using hping:
 - Remote OS fingerprinting 
 - Remote uptime guessing 
 - TCP/IP stacks auditing
+
+N.B. the message "[send_ip] sendto: No route to host" often indicates
+that sending a packet has been blocked by PF on the local machine.