Add "proto_item_set_text()", which sets the "representation" field of an

existing protocol tree item.

Add "proto_tree_add_notext()"; it's just like "proto_tree_add_text()",
but without the text, and it sets the "representation" field to NULL;
that field would be set later with "proto_item_set_text()".

Those routines let you construct, for example, an interior node of the
protocol tree whose text can't be determined until all the nodes under
it have been dissected - it's similar to "proto_item_set_len()" in that
fashion.

Use that when dissecting address TLVs in the CDP dissector - create the
item for an address in an "Addresses" TLV with no text, and then fill in
the items under it one at a time; if we get cut off before we get to the
actual address, set the text to "Truncated address", otherwise set it to
a description of the address.

Also, set the length of the item for the entire address TLV correctly.

svn path=/trunk/; revision=1520

1 files changed, 7 insertions, 1 deletions

diff --git a/proto.h b/proto.h
index b5b0442dcb..78100c3fbc 100644
--- a/proto.h
+++ b/proto.h
@@ -1,7 +1,7 @@
 /* proto.h
  * Definitions for protocol display
  *
- * $Id: proto.h,v 1.20 1999/11/16 11:43:07 guy Exp $
+ * $Id: proto.h,v 1.21 2000/01/22 04:59:55 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -151,6 +151,9 @@ void proto_init(void);
 /* Frees memory used by proto routines. Called at program shutdown */
 void proto_cleanup(void);
 
+/* Set text of proto_item after having already been created. */
+void proto_item_set_text(proto_item *ti, ...);
+
 /* Set length of proto_item after having already been created. */
 void proto_item_set_len(proto_item *ti, gint length);
 
@@ -189,6 +192,9 @@ proto_tree_add_item_format(proto_tree *tree, int hfindex, gint start,
 	gint length, ...);
 
 proto_item *
+proto_tree_add_notext(proto_tree *tree, gint start, gint length, ...);
+
+proto_item *
 proto_tree_add_text(proto_tree *tree, gint start, gint length, ...);
 
 void