From a2fc20db8f5b15f54dd656f11f2f5c6f2bc1514b Mon Sep 17 00:00:00 2001
From: OZAWA Sakuro <10973+sakuro@users.noreply.github.com>
Date: Mon, 16 Jan 2023 11:19:03 +0900
Subject: [PATCH] Zip::InputStream#read returns '' with 0

---
 lib/zip/ioextras/abstract_input_stream.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/zip/ioextras/abstract_input_stream.rb b/lib/zip/ioextras/abstract_input_stream.rb
index 721e33a..c132725 100644
--- a/lib/zip/ioextras/abstract_input_stream.rb
+++ b/lib/zip/ioextras/abstract_input_stream.rb
@@ -36,7 +36,7 @@ module Zip
                end
 
         if tbuf.nil? || tbuf.empty?
-          return nil if number_of_bytes
+          return nil if number_of_bytes&.positive?
 
           return ''
         end