===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/systat/netstat.c,v
retrieving revision 1.38
retrieving revision 1.39
diff -c -r1.38 -r1.39
*** src/usr.bin/systat/netstat.c	2013/12/24 22:26:20	1.38
--- src/usr.bin/systat/netstat.c	2013/12/25 01:46:00	1.39
***************
*** 1,4 ****
! /*	$OpenBSD: netstat.c,v 1.38 2013/12/24 22:26:20 tedu Exp $	*/
  /*	$NetBSD: netstat.c,v 1.3 1995/06/18 23:53:07 cgd Exp $	*/
  
  /*-
--- 1,4 ----
! /*	$OpenBSD: netstat.c,v 1.39 2013/12/25 01:46:00 tedu Exp $	*/
  /*	$NetBSD: netstat.c,v 1.3 1995/06/18 23:53:07 cgd Exp $	*/
  
  /*-
***************
*** 232,239 ****
  read_ns(void)
  {
  	struct inpcbtable pcbtable;
! 	struct inpcb *next;
! 	struct inpcb inpcb;
  	struct socket sockb;
  	struct tcpcb tcpcb;
  	void *off;
--- 232,239 ----
  read_ns(void)
  {
  	struct inpcbtable pcbtable;
! 	struct inpcb *next, *prev;
! 	struct inpcb inpcb, prevpcb;
  	struct socket sockb;
  	struct tcpcb tcpcb;
  	void *off;
***************
*** 262,271 ****
--- 262,280 ----
  again:
  	KREAD(off, &pcbtable, sizeof (struct inpcbtable));
  
+ 	prev = NULL;
  	next = TAILQ_FIRST(&pcbtable.inpt_queue);
  
  	while (next != NULL) {
  		KREAD(next, &inpcb, sizeof (inpcb));
+ 		if (prev != NULL) {
+ 			KREAD(prev, &prevpcb, sizeof (prevpcb));
+ 			if (TAILQ_NEXT(&prevpcb, inp_queue) != next) {
+ 				error("Kernel state in transition");
+ 				return 0;
+ 			}
+ 		}
+ 		prev = next;
  		next = TAILQ_NEXT(&inpcb, inp_queue);
  
  		if (!aflag) {