[src/trunk]: src/sys/netinet Do the other TCP_PAWS_IDLE check unsigned as wel...

[mycroft <mycroft%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ea0ccc7e1373
branches:  trunk
changeset: 573452:ea0ccc7e1373
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Thu Jan 27 17:10:07 2005 +0000

description:
Do the other TCP_PAWS_IDLE check unsigned as well.  It doesn't do us any harm,
and it could detect even older time stamps.  (Really, to be 100% correct, there
should be a timer that clears these out -- but it probably doesn't matter in
the real world.)

diffstat:

 sys/netinet/tcp_input.c |  9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diffs (37 lines):

diff -r d866678fc27d -r ea0ccc7e1373 sys/netinet/tcp_input.c
--- a/sys/netinet/tcp_input.c   Thu Jan 27 16:56:06 2005 +0000
+++ b/sys/netinet/tcp_input.c   Thu Jan 27 17:10:07 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_input.c,v 1.215 2005/01/27 16:56:06 mycroft Exp $  */
+/*     $NetBSD: tcp_input.c,v 1.216 2005/01/27 17:10:07 mycroft Exp $  */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.215 2005/01/27 16:56:06 mycroft Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.216 2005/01/27 17:10:07 mycroft Exp $");
 
 #include "opt_inet.h"
 #include "opt_ipsec.h"
@@ -238,7 +238,7 @@
 static int tcp_ackdrop_ppslim_count = 0;
 static struct timeval tcp_ackdrop_ppslim_last;
 
-#define TCP_PAWS_IDLE  (24 * 24 * 60 * 60 * PR_SLOWHZ)
+#define TCP_PAWS_IDLE  (24U * 24 * 60 * 60 * PR_SLOWHZ)
 
 /* for modulo comparisons of timestamps */
 #define TSTMP_LT(a,b)  ((int)((a)-(b)) < 0)
@@ -1793,8 +1793,7 @@
            TSTMP_LT(opti.ts_val, tp->ts_recent)) {
 
                /* Check to see if ts_recent is over 24 days old.  */
-               if ((int)(TCP_TIMESTAMP(tp) - tp->ts_recent_age) >
-                   TCP_PAWS_IDLE) {
+               if (TCP_TIMESTAMP(tp) - tp->ts_recent_age > TCP_PAWS_IDLE) {
                        /*
                         * Invalidate ts_recent.  If this segment updates
                         * ts_recent, the age will be reset later and ts_recent