From 68c3eef88f14f1b4002270cdf90aedf764e21577 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Mon, 28 Nov 2022 08:42:55 -0600
Subject: [PATCH] SCP: do $var === false vs !$var

---
 phpseclib/Net/SCP.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/phpseclib/Net/SCP.php b/phpseclib/Net/SCP.php
index 9e48c479..0e0e946c 100644
--- a/phpseclib/Net/SCP.php
+++ b/phpseclib/Net/SCP.php
@@ -283,6 +283,13 @@ class Net_SCP
         $content = '';
         while ($size < $info['size']) {
             $data = $this->_receive();
+
+            // Terminate the loop in case the server repeatedly sends an empty response
+            if ($data === false) {
+                user_error('No data received from server', E_USER_NOTICE);
+                return false;
+            }
+
             // SCP usually seems to split stuff out into 16k chunks
             $size+= strlen($data);