When using the dnet command-line tool, the fragment offset should

be limited to 0xfff8 but the actual limit was 0x1fff.  Add a missing
shift to support fragments for big IP packets.
ok naddy

net/libdnet/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.29 2011/09/16 11:13:38 espie Exp $
+# $OpenBSD: Makefile,v 1.30 2011/09/18 08:32:56 bluhm Exp $
 
 COMMENT-main=	portable low-level networking library
 COMMENT-python= python interface to libdnet
@@ -7,7 +7,7 @@ MODPY_EGG_VERSION=1.12
 DISTNAME=	libdnet-${MODPY_EGG_VERSION}
 PKGNAME-main=	${DISTNAME}
 PKGNAME-python= py-${DISTNAME}
-REVISION-main=	2
+REVISION-main=	3
 REVISION-python= 3
 
 SHARED_LIBS=	dnet	1.0

net/libdnet/patches/patch-test_dnet_aton_c

@@ -0,0 +1,14 @@
+$OpenBSD: patch-test_dnet_aton_c,v 1.1 2011/09/18 08:32:56 bluhm Exp $
+http://code.google.com/p/libdnet/issues/detail?id=17
+
+--- test/dnet/aton.c.orig	Mon Oct 14 17:42:10 2002
++++ test/dnet/aton.c	Thu Jan 20 03:26:57 2011
+@@ -86,7 +86,7 @@ off_aton(char *string, uint16_t *off)
+ 	} else {
+ 		i = strtol(string, &p, 10);
+ 		if (*string == '\0' || (*p != '\0' && *p != '+') ||
+-		    i > IP_OFFMASK)
++		    i > (IP_OFFMASK << 3))
+ 			return (-1);
+ 		*off = htons(((*p == '+') ? IP_MF : 0) | (i >> 3));
+ 	}