From d4263e854d2ad74522dcdce7f920c33cc5e1c16e Mon Sep 17 00:00:00 2001
From: Andrew Brown <browner12@gmail.com>
Date: Tue, 18 Apr 2023 15:16:18 -0500
Subject: [PATCH] update exception message

`fputs()` can return `int|false`.  if it fails and `$sent` is `false`, then our exception message looks a little confusing:

> Only  of XXX bytes were sent

This change updates the message to be more descriptive if the `fputs()` fails.
---
 phpseclib/Net/SSH2.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 88a92f24..de020e95 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -4266,7 +4266,8 @@ class SSH2
 
         if (strlen($packet) != $sent) {
             $this->bitmap = 0;
-            throw new \RuntimeException("Only $sent of " . strlen($packet) . " bytes were sent");
+            $message = $sent === false ? ('Unable to write ' . strlen($packet) . ' bytes') : ("Only $sent of " . strlen($packet) . " bytes were sent");
+            throw new \RuntimeException($message);
         }
     }