From db64534b26189bacc95956222677fc34fb62e845 Mon Sep 17 00:00:00 2001
From: John Stevenson <john-stevenson@blueyonder.co.uk>
Date: Fri, 21 Jan 2022 09:09:58 +0000
Subject: [PATCH] Fixed bin proxies on PHP < 8 to support stream_seek (#10468)

---
 src/Composer/Installer/BinaryInstaller.php | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Composer/Installer/BinaryInstaller.php b/src/Composer/Installer/BinaryInstaller.php
index 03bd0839f40a..1f6f14d787cb 100644
--- a/src/Composer/Installer/BinaryInstaller.php
+++ b/src/Composer/Installer/BinaryInstaller.php
@@ -333,6 +333,16 @@ public function stream_lock(\$operation)
                 return \$operation ? flock(\$this->handle, \$operation) : true;
             }
 
+            public function stream_seek(\$offset, \$whence)
+            {
+                if (0 === fseek(\$this->handle, \$offset, \$whence)) {
+                    \$this->position = ftell(\$this->handle);
+                    return true;
+                }
+
+                return false;
+            }
+
             public function stream_tell()
             {
                 return \$this->position;