From 72f34f2a60ce83b1329b0d39902c8b9fe360f6a9 Mon Sep 17 00:00:00 2001
From: j <0x006A@0x2620.org>
Date: Thu, 19 Mar 2015 18:57:50 +0530
Subject: [PATCH] fix net.oshash for small files

---
 ox/net.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ox/net.py b/ox/net.py
index 200a2b4..3d4c52e 100644
--- a/ox/net.py
+++ b/ox/net.py
@@ -145,8 +145,9 @@ def oshash(url):
         if filesize > 65536:
             tail = get_range(url, filesize-65536, filesize)
         if filesize < 65536:
-            for offset in range(0, filesize, bytesize):
-                buffer = head[offset:offset+bytesize]
+            f = BytesIO(head)
+            for x in range(int(filesize/bytesize)):
+                buffer = f.read(bytesize)
                 (l_value,)= struct.unpack(longlongformat, buffer)
                 hash += l_value
                 hash = hash & 0xFFFFFFFFFFFFFFFF #cut off 64bit overflow