From be76642c9ee65b91412818260088b719dfe5cf3e Mon Sep 17 00:00:00 2001
From: "Niall T. Davidson" <nialltdavidson@gmail.com>
Date: Mon, 10 Jun 2013 22:09:16 +0100
Subject: [PATCH] Fixed erroneous byte count reported by libwebsocket_write()

---
 lib/output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/output.c b/lib/output.c
index 224a0f27a..644eb71da 100644
--- a/lib/output.c
+++ b/lib/output.c
@@ -498,7 +498,7 @@ send_raw:
 	if (n < 0)
 		return n;
 
-	return orig_len - ((len - pre + post) -n );
+	return orig_len - ((len + pre + post) -n );
 }
 
 LWS_VISIBLE int libwebsockets_serve_http_file_fragment(