From 8f42f5238e7effbf6e41977c5018d0e50770365c Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rsbultje@gmail.com>
Date: Sun, 28 Jan 2007 02:38:02 +0000
Subject: [PATCH] proper error handling in file size retrieval, patch by Ronald
 S. Bultje rbultje at ronald bitfreak net

Originally committed as revision 7736 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/aviobuf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 4a595e2e437..ab8fc1da399 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -172,7 +172,9 @@ offset_t url_fsize(ByteIOContext *s)
         return -EPIPE;
     size = s->seek(s->opaque, 0, AVSEEK_SIZE);
     if(size<0){
-        size = s->seek(s->opaque, -1, SEEK_END) + 1;
+        if ((size = s->seek(s->opaque, -1, SEEK_END)) < 0)
+            return size;
+        size++;
         s->seek(s->opaque, s->pos, SEEK_SET);
     }
     return size;
-- 
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