From b70cb8764179060dff71969b1a41f7df76f0b3b6 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Sat, 19 Nov 2016 20:39:05 -0600
Subject: [PATCH] SFTP: don't delete directory if $path is empty

---
 phpseclib/Net/SFTP.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/phpseclib/Net/SFTP.php b/phpseclib/Net/SFTP.php
index a279bdfb..d5404994 100644
--- a/phpseclib/Net/SFTP.php
+++ b/phpseclib/Net/SFTP.php
@@ -2237,6 +2237,10 @@ class Net_SFTP extends Net_SSH2
             return false;
         }
 
+        if (empty($path)) {
+            return false;
+        }
+
         $path = $this->_realpath($path);
         if ($path === false) {
             return false;