From a80ebce3f25f56d910b3d05ef2d62aafa9e5f578 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Thu, 28 Apr 2005 04:03:30 +0000
Subject: Some dissectors apparently call proto_tree_add_*() with a null tvb.
 This makes tvb_ensure_bytes_exist() throw a fit, so just throw an exception
 instead.

svn path=/trunk/; revision=14212
---
 epan/proto.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/epan/proto.c b/epan/proto.c
index c164cbbb08..a763946493 100644
--- a/epan/proto.c
+++ b/epan/proto.c
@@ -2235,7 +2235,9 @@ alloc_field_info(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
 				    item_length = length_remaining;
             }
 		}
-		tvb_ensure_bytes_exist(tvb, start, item_length);
+		if (item_length < 0) {
+			THROW(ReportedBoundsError);
+		}
 	}
 
 	FIELD_INFO_NEW(fi);
-- 
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