From 044f075c66d6a71aa3e82439d41a6c76c59009d7 Mon Sep 17 00:00:00 2001
From: Guy Harris <guy@alum.mit.edu>
Date: Thu, 25 Mar 2004 23:55:21 +0000
Subject: [PATCH] From Tomas Kukosa: add APIs to get the parent of a protocol
 tree item and the item N levels up from a protocol tree item.

svn path=/trunk/; revision=10486
---
 epan/proto.c              | 22 +++++++++++++++++++++-
 epan/proto.h              |  8 +++++++-
 plugins/plugin_api_list.c |  5 ++++-
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/epan/proto.c b/epan/proto.c
index cf80391f07..676b082359 100644
--- a/epan/proto.c
+++ b/epan/proto.c
@@ -1,7 +1,7 @@
 /* proto.c
  * Routines for protocol tree
  *
- * $Id: proto.c,v 1.130 2004/03/25 09:17:11 guy Exp $
+ * $Id: proto.c,v 1.131 2004/03/25 23:55:21 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@ethereal.com>
@@ -2186,6 +2186,26 @@ proto_item_get_subtree(proto_item *pi) {
 	return (proto_tree*) pi;
 }
 
+proto_item*
+proto_item_get_parent(proto_item *ti) {
+	if (!ti)
+		return (NULL);
+	return ti->parent;
+}
+
+proto_item*
+proto_item_get_parent_nth(proto_item *ti, int gen) {
+	if (!ti)
+		return (NULL);
+	while (gen--) {
+		ti = ti->parent;
+		if (!ti)
+			return (NULL);
+	}
+	return ti;
+}
+
+
 proto_item* 
 proto_tree_get_parent(proto_tree *tree) {
 	if (!tree)
diff --git a/epan/proto.h b/epan/proto.h
index 30532a9ba0..e906c4ec9b 100644
--- a/epan/proto.h
+++ b/epan/proto.h
@@ -1,7 +1,7 @@
 /* proto.h
  * Definitions for protocol display
  *
- * $Id: proto.h,v 1.56 2004/03/25 09:17:11 guy Exp $
+ * $Id: proto.h,v 1.57 2004/03/25 23:55:21 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@ethereal.com>
@@ -208,6 +208,12 @@ extern proto_tree* proto_item_add_subtree(proto_item *ti, gint idx);
 /* Get a subtree under an item; returns tree pointer */
 extern proto_tree* proto_item_get_subtree(proto_item *ti);
 
+/* Get a parent item; returns item pointer */
+extern proto_item* proto_item_get_parent(proto_item *ti);
+
+/* Get Nth generation parent item; returns item pointer */
+extern proto_item* proto_item_get_parent_nth(proto_item *ti, int gen);
+
 /* Get a parent item of subtree; returns item pointer */
 extern proto_item* proto_tree_get_parent(proto_tree *tree);
 
diff --git a/plugins/plugin_api_list.c b/plugins/plugin_api_list.c
index 4a9b96e471..5ba305759d 100644
--- a/plugins/plugin_api_list.c
+++ b/plugins/plugin_api_list.c
@@ -1,7 +1,7 @@
 /* plugin_api_list.c
  * Used to generate various included files for plugin API
  *
- * $Id: plugin_api_list.c,v 1.32 2004/03/25 09:17:11 guy Exp $
+ * $Id: plugin_api_list.c,v 1.33 2004/03/25 23:55:21 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@ethereal.com>
@@ -431,3 +431,6 @@ int get_ber_identifier(tvbuff_t *tvb, int offset, guint8 *class, gboolean *pc, g
 int get_ber_length(tvbuff_t *tvb, int offset, guint32 *length, gboolean *ind);
 proto_tree* proto_item_get_subtree(proto_item *ti);
 proto_item* proto_tree_get_parent(proto_tree *tree);
+proto_item* proto_item_get_parent(proto_item *ti);
+proto_item* proto_item_get_parent_nth(proto_item *ti, int gen);
+proto_item *get_ber_last_created_item(void);