From 079423f5c5e22faaaa5db9b590f09ee111db5d47 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Thu, 20 Dec 2012 22:33:52 -0800
Subject: [PATCH] tiffdec: check error returns for width/height

Change-Id: I1399a7b75aea54044f30c6a53ac11843c1e75877
---
 examples/tiffdec.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/examples/tiffdec.c b/examples/tiffdec.c
index c93be49a..9f2d4214 100644
--- a/examples/tiffdec.c
+++ b/examples/tiffdec.c
@@ -41,8 +41,11 @@ int ReadTIFF(const char* const filename,
                     dircount - 1);
   }
 
-  TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width);
-  TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height);
+  if (!(TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width) &&
+        TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height))) {
+    fprintf(stderr, "Error! Cannot retrieve TIFF image dimensions.\n");
+    return 0;
+  }
   raster = (uint32*)_TIFFmalloc(width * height * sizeof(*raster));
   if (raster != NULL) {
     if (TIFFReadRGBAImageOriented(tif, width, height, raster,