Update to hping2, release candidate 3

Changes:
- don't install hping suid root by default, add "hping-suid" option.
- add bunch on patches from Pavel Kankovsky <peak at argo.troja.mff.cuni.cz>
  namely: add --flood and --tcp-mss options (self-explanatory), some checksum
  and interface binding fixes and warning fixes

2.0.0rc3:
=======
FIX: Fix for interface guessing with aliases on BSD
     Thanks <michel.gravey(@)orange.fr> and <cognet(@)freebsd.org>
FIX: fixed cksum.c. Bad outgoing packet checksum with some packet.
     Thanks to Brett Eldridge <beldridg@pobox.com>.
ADD: scan mode (--scan)
ADD: A rc4-based PRNG to use with --rand-source and --rand-dest
FIX: Fix -I option for BSD/Apple
ADD: Add support for BSDI and MacOSX (thanks
     Dennis Opacki <dopacki@adotout.com> and Jan-Hinrich Fessel
     <Jan-Hinrich.Fessel@T-Mobile.de>)
ADD: A few useful ICMP options
ADD: Add support for :
     WLAN (Fabian Melzow <biop0b@web.de>)
     ATM (Debian bug #193436, thanks to Domenico Andreoli)
     Token Ring (jim.r.halfpenny@britishairways.com)
ADD: MacOSX patches (Hans-Joachim Knobloch <knobloch@secorvo.de>)
FIX: --rand-source patches from Quentin Garnier <hping@quatriemek.com>
     . ensure randomness
     . do not stop on errors when using a E or D class address (BSD only?)

1 files changed, 78 insertions, 0 deletions

diff --git a/net/hping/patches/patch-af b/net/hping/patches/patch-af
new file mode 100644
index 00000000000..f82c42fad50
--- /dev/null
+++ b/net/hping/patches/patch-af
@@ -0,0 +1,78 @@
+$NetBSD: patch-af,v 1.1 2006/03/30 13:51:29 salo Exp $
+
+--- ars.c.orig	2003-07-28 11:00:54.000000000 +0200
++++ ars.c	2005-11-05 21:35:00.000000000 +0100
+@@ -372,7 +372,7 @@
+ 	}
+ 	if (nbytes == 1) {
+ 		oddbyte = 0;
+-		*((u_int16_t *) &oddbyte) = *(u_int8_t *) buf;
++		*((u_int8_t *) &oddbyte) = *((u_int8_t *) buf);
+ 		sum += oddbyte;
+ 	}
+ 	sum = (sum >> 16) + (sum & 0xffff);
+@@ -381,6 +381,13 @@
+ }
+ 
+ /* Multiple buffers checksum facility */
++/*
++ * Important facts about the checksum (sum = ~cksum, Ai are bytes):
++ * 1. sum(A0...A2i-1,A2i...A2n-1) = sum(A0...A2i-1) + sum(A2i...B2n-1),
++ * 2. sum(A0...A2i,A2i+1...A2n-1) = sum(A0...A2i,0) + sum(0,A2i+1...A2n-1)
++ * 3. sum(A0...A2n-1,A2n) = sum(A0...A2n-1,A2n,0)  (ex definitiones)
++ * 4. sum(0,A0...Ak) = swap_bytes(sum(A0...Ak))
++ */
+ u_int16_t ars_multi_cksum(struct mc_context *c, int op, void *vbuf,
+ 							size_t nbytes)
+ {
+@@ -394,38 +401,27 @@
+ 		c->old = 0;
+ 		return -ARS_OK;
+ 	} else if (op == ARS_MC_UPDATE) {
+-		if (c->oddbyte_flag) {
+-			u_int8_t *x = (u_int8_t*)&oddbyte;
+-			oddbyte = 0;
+-			*((u_int16_t *) &oddbyte) = c->oddbyte << 8;
+-			*((u_int16_t *) &oddbyte) |= *(u_int8_t *) buf;
+-			oddbyte = (x[0] << 8) | x[1]; /* fix endianess */
+-			c->old += oddbyte;
+-			nbytes--;
+-			c->oddbyte_flag = 0;
+-			/* We need to stay aligned -- bad slowdown, fix? */
+-			tmp = alloca(nbytes);
+-			memcpy(tmp, vbuf+1, nbytes);
+-			buf = tmp;
+-		}
+-		sum = c->old;
++		sum = 0;
+ 		while (nbytes > 1) {
+ 			sum += *buf++;
+ 			nbytes -= 2;
+ 		}
+-		c->old = sum;
+ 		if (nbytes == 1) {
+-			c->oddbyte = *(u_int8_t*) buf;
+-			c->oddbyte_flag++;
++			oddbyte = 0;
++			*((u_int8_t *) &oddbyte) = *((u_int8_t *) buf);
++			sum += oddbyte;
+ 		}
++		if (c->oddbyte_flag) {
++			/* reverse checksum endianness */
++			sum = (sum >> 16) + (sum & 0xffff);
++			sum += (sum >> 16);
++			sum = ((sum & 0xff00) >> 8) | ((sum & 0xff) << 8);
++		}
++		c->old += sum;
++		c->oddbyte_flag ^= (nbytes == 1 ? 1 : 0);
+ 		return -ARS_OK;
+ 	} else if (op == ARS_MC_FINAL) {
+ 		sum = c->old;
+-		if (c->oddbyte_flag == 1) {
+-			oddbyte = 0;
+-			*((u_int16_t *) &oddbyte) = c->oddbyte;
+-			sum += oddbyte;
+-		}
+ 		sum = (sum >> 16) + (sum & 0xffff);
+ 		sum += (sum >> 16);
+ 		return (u_int16_t) ~sum;