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hi.

with recent -current, "keep state" doesn't work
for clients that sends syn without window scale option.
attached patch fixes it.
can I commit this?
thanks.

---
YAMAMOTO Takashi<yamt@mwd.biglobe.ne.jp>

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Index: ip_state.c
===================================================================
RCS file: /cvs/cvsroot/syssrc/sys/netinet/ip_state.c,v
retrieving revision 1.38
diff -u -r1.38 ip_state.c
--- ip_state.c	2002/05/02 17:13:30	1.38
+++ ip_state.c	2002/05/29 11:00:39
@@ -698,8 +698,11 @@
 			is->is_maxsend = is->is_send;
 
 			if ((tcp->th_flags & TH_SYN) &&
-			    ((tcp->th_off << 2) >= (sizeof(*tcp) + 4)))
-				is->is_swscale = fr_tcpoptions(tcp);
+			    ((tcp->th_off << 2) >= (sizeof(*tcp) + 4))) {
+				int wscale = fr_tcpoptions(tcp);
+				if (wscale >= 0)
+					is->is_swscale = wscale;
+			}
 		}
 
 		is->is_maxdwin = 1;

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