From 6105160a2317991da14e4902a0314e594635e989 Mon Sep 17 00:00:00 2001
From: kris <kris@FreeBSD.org>
Date: Fri, 29 Sep 2000 01:37:19 +0000
Subject: Use stronger random number generation for TCP_ISSINCR and tcp_iss.

Reviewed by:	peter, jlemon
---
 sys/netinet/tcp_seq.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sys/netinet/tcp_seq.h')

diff --git a/sys/netinet/tcp_seq.h b/sys/netinet/tcp_seq.h
index aeefb20..49b714a 100644
--- a/sys/netinet/tcp_seq.h
+++ b/sys/netinet/tcp_seq.h
@@ -91,7 +91,7 @@ extern tcp_cc	tcp_ccgen;		/* global connection count */
  * number in the range [0-0x3ffff] that is hard to predict.
  */
 #ifndef tcp_random18
-#define	tcp_random18()	((random() >> 14) & 0x3ffff)
+#define	tcp_random18()	(arc4random() & 0x3ffff)
 #endif
 #define	TCP_ISSINCR	(122*1024 + tcp_random18())
 
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