From cd4a51cf67530457352b5cf3d5e56d5357c63226 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 30 Jun 2016 11:11:00 +0100
Subject: [PATCH] Added handling of return value

---
 src/osgPlugins/stl/ReaderWriterSTL.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/osgPlugins/stl/ReaderWriterSTL.cpp b/src/osgPlugins/stl/ReaderWriterSTL.cpp
index c21491c69..883c1219f 100644
--- a/src/osgPlugins/stl/ReaderWriterSTL.cpp
+++ b/src/osgPlugins/stl/ReaderWriterSTL.cpp
@@ -680,7 +680,10 @@ ReaderWriterSTL::ReaderObject::ReadResult ReaderWriterSTL::BinaryReaderObject::r
     bool comesFromMagics = fileComesFromMagics(fp, magicsHeaderColor);
 
     // seek to beginning of facets
-    ::fseek(fp, sizeof_StlHeader, SEEK_SET);
+    if (::fseek(fp, sizeof_StlHeader, SEEK_SET)!=0)
+    {
+        return ReadError;
+    }
 
     StlFacet facet;
     for (unsigned int i = 0; i < _expectNumFacets; ++i)