From 5e914781920d6d91d61026cccee352944bbd27f0 Mon Sep 17 00:00:00 2001
From: John Hurliman <jhurliman@jhurliman.org>
Date: Wed, 5 Nov 2008 02:00:07 +0000
Subject: [PATCH] Added sanity check in OSDParser.DeserializeLLSDBinary() to
 check if the stream is seekable

git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2324 52acb1d6-8a22-11de-b505-999d5b087335
---
 OpenMetaverse/StructuredData/BinaryLLSD.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/OpenMetaverse/StructuredData/BinaryLLSD.cs b/OpenMetaverse/StructuredData/BinaryLLSD.cs
index cb177ba9..999138e0 100644
--- a/OpenMetaverse/StructuredData/BinaryLLSD.cs
+++ b/OpenMetaverse/StructuredData/BinaryLLSD.cs
@@ -91,11 +91,14 @@ namespace OpenMetaverse.StructuredData
         /// <returns></returns>
         public static OSD DeserializeLLSDBinary(Stream stream)
         {
+            if (!stream.CanSeek)
+                throw new OSDException("Cannot deserialize binary LLSD from unseekable streams");
+
             SkipWhiteSpace(stream);
 
             bool result = FindByteArray(stream, llsdBinaryHead);
             if (!result)
-                throw new OSDException("No binary encoded SD.");
+                throw new OSDException("Failed to decode binary LLSD");
 
             return ParseLLSDBinaryElement(stream);
         }