From fe8656a98fc996e1091e2cde2fa1b51aa822093f Mon Sep 17 00:00:00 2001
From: phk <phk@FreeBSD.org>
Date: Mon, 14 Apr 1997 18:22:02 +0000
Subject: [PATCH] Add LIST_FIRST, LIST_FOREACH and LIST_NEXT

---
 sys/sys/queue.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sys/sys/queue.h b/sys/sys/queue.h
index e8758cd1273d..0e042d3cce98 100644
--- a/sys/sys/queue.h
+++ b/sys/sys/queue.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)queue.h	8.5 (Berkeley) 8/20/94
- * $Id$
+ * $Id: queue.h,v 1.13 1997/02/22 09:45:44 peter Exp $
  */
 
 #ifndef _SYS_QUEUE_H_
@@ -217,6 +217,11 @@ struct {								\
 /*
  * List functions.
  */
+#define LIST_FIRST(head)	((head)->lh_first)
+
+#define LIST_FOREACH(var, head, field)					\
+	for((var) = (head)->lh_first; (var); (var) = (var)->field.le_next)
+
 #define	LIST_INIT(head) {						\
 	(head)->lh_first = NULL;					\
 }
@@ -243,6 +248,8 @@ struct {								\
 	(elm)->field.le_prev = &(head)->lh_first;			\
 }
 
+#define LIST_NEXT(elm, field)	((elm)->field.le_next)
+
 #define LIST_REMOVE(elm, field) {					\
 	if ((elm)->field.le_next != NULL)				\
 		(elm)->field.le_next->field.le_prev = 			\