From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 15 Jan 2018 13:30:56 +0000 (-0500)
Subject: https://github.com/ImageMagick/ImageMagick/issues/945
X-Git-Tag: 7.0.7-22~65
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f59a9b1a4d2f0fff69328271784aeced19289389;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/945
---

diff --git a/MagickCore/blob.c b/MagickCore/blob.c
index 3fafc5998..226f03e91 100644
--- a/MagickCore/blob.c
+++ b/MagickCore/blob.c
@@ -2719,7 +2719,7 @@ MagickExport MagickBooleanType IsBlobSeekable(const Image *image)
       int
         status;
 
-      if (fileno(blob_info->file_info.file) == -1)
+      if (blob_info->file_info.file == (FILE *) NULL)
         return(MagickFalse);
       status=fseek(blob_info->file_info.file,0,SEEK_CUR);
       return(status == -1 ? MagickFalse : MagickTrue);