From 1944cfb469b444fc4885353100da54ebd9bcccf2 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Mon, 28 Oct 1991 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1991-10-28

---
 port/devarp.c |  2 ++
 port/ipdat.h  | 24 ------------------------
 port/stil.c   |  2 ++
 3 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/port/devarp.c b/port/devarp.c
index aaa024d757b4f7c863a5cc573570c54fdc2377f8..a893dd736fb6fa52dc7d625d47600a8841c3955f 100644
--- a/port/devarp.c
+++ b/port/devarp.c
@@ -310,9 +310,11 @@ arpsendpkt(uchar *unroutedip, uchar *ether, Queue *put, Block *bp)
 
 	iproute(unroutedip, ip);
 	if(arplookup(ip, ether)) {
+print("hit %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
 		PUTNEXT(put, bp);
 		return;
 	}
+print("miss %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
 
 	/* Send the request out to the user level arp daemon */
 	nbp = allocb(sizeof(ip));
diff --git a/port/ipdat.h b/port/ipdat.h
index c04137025b1dea0b6a5e447870b658f4c9b180d2..85bd7fde380cebdd468cbc44455e5e686c67b91b 100644
--- a/port/ipdat.h
+++ b/port/ipdat.h
@@ -3,7 +3,6 @@ typedef struct Ipifc	Ipifc;
 typedef struct Fragq	Fragq;
 typedef struct Ipfrag	Ipfrag;
 typedef ulong		Ipaddr;
-typedef struct Arpcache	Arpcache;
 typedef ushort		Port;
 typedef struct Udphdr	Udphdr;
 typedef struct Etherhdr	Etherhdr;
@@ -380,29 +379,6 @@ struct Ipfrag
 	ushort	flen;
 };
 
-struct Arpcache
-{
-	uchar	status;		/* Entry status */
-	uchar	type;		/* Entry type */
-	Ipaddr	ip;		/* Host byte order */
-	uchar	eip[4];		/* Network byte order */
-	uchar	et[6];		/* Ethernet address for this ip */
-	int	age;		/* Entry timeout */
-	Arpcache *hash;
-	Arpcache **hashhd;
-	Arpcache *frwd;
-	Arpcache *prev;
-};
-
-#define ARP_FREE	0
-#define ARP_OK		1
-#define ARP_ASKED	2
-#define ARP_TEMP	0
-#define ARP_PERM	1
-#define Arphashsize	32
-#define ARPHASH(p)	arphash[((p[2]^p[3])%Arphashsize)]
-#define ARP_WAITMS	2500		/* Wait for arp replys */
-
 #define IP_VER	0x40			/* Using IP version 4 */
 #define IP_HLEN 0x05			/* Header length in characters */
 #define IP_DF	0x4000			/* Don't fragment */
diff --git a/port/stil.c b/port/stil.c
index ebc5f71b47f709d0cc10fd0375d9e2603956b95e..5f47e933ab86ef86f5437138dc2020c8188d7ef4 100644
--- a/port/stil.c
+++ b/port/stil.c
@@ -325,6 +325,8 @@ ilprocess(Ipconv *s, Ilhdr *h, Block *bp)
 			oh = (Ilhdr*)bp->rptr;
 			oid = nhgetl(oh->ilid);
 print("recvd = %d outoforder = %d\n", ic->recvd, oid);
+			if(oid > ic->recvd)
+				break;
 			if(oid < ic->recvd) {
 				ic->outoforder = bp->next;
 				freeb(bp);