From 1eda62913aa4c3f0806b23e180fd7b022dbde1e8 Mon Sep 17 00:00:00 2001
From: Michel Bardelmeijer <m.bardelmeijer@gmail.com>
Date: Wed, 24 Aug 2016 10:03:44 +0200
Subject: [PATCH] Handle empty fread return correctly which resolves zero-byte
 file issues

---
 phpseclib/Net/SFTP.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpseclib/Net/SFTP.php b/phpseclib/Net/SFTP.php
index 35e6d36b..2ca06b73 100644
--- a/phpseclib/Net/SFTP.php
+++ b/phpseclib/Net/SFTP.php
@@ -1956,7 +1956,7 @@ class Net_SFTP extends Net_SSH2
                 }
             } else {
                 $temp = isset($fp) ? fread($fp, $sftp_packet_size) : substr($data, $sent, $sftp_packet_size);
-                if ($temp === false) {
+                if ($temp === false || $temp === '') {
                     break;
                 }
             }