From cf1e02d9ae338c889862b160b61177f87a1d9c9c Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Mon, 15 Oct 2012 17:06:38 +0200
Subject: [PATCH] [Console] Fix error when mode is not in PATH

---
 src/Symfony/Component/Console/Application.php | 29 ++++++++++++++++---
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index e9ff3125451f4..756b63e08d698 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -854,8 +854,7 @@ protected function getTerminalWidth()
                 return preg_replace('{^(\d+)x.*$}', '$1', $ansicon);
             }
 
-            exec('mode CON', $execData);
-            if (preg_match('{columns:\s*(\d+)}i', $execData[4], $matches)) {
+            if (preg_match('{columns:\s*(\d+)}i', $this->getConsoleMode(), $matches)) {
                 return $matches[1];
             }
         }
@@ -877,8 +876,7 @@ protected function getTerminalHeight()
                 return preg_replace('{^\d+x\d+ \(\d+x(\d+)\)$}', '$1', trim($ansicon));
             }
 
-            exec('mode CON', $execData);
-            if (preg_match('{lines:\s*(\d+)}i', $execData[3], $matches)) {
+            if (preg_match('{lines:\s*(\d+)}i', $this->getConsoleMode(), $matches)) {
                 return $matches[1];
             }
         }
@@ -966,6 +964,29 @@ private function getSttyColumns()
         }
     }
 
+    /**
+     * Runs and parses mode CON if it's available, suppressing any error output
+     *
+     * @return string
+     */
+    private function getConsoleMode()
+    {
+        if (!function_exists('proc_open')) {
+            return;
+        }
+
+        $descriptorspec = array(1 => array('pipe', 'w'), 2 => array('pipe', 'w'));
+        $process = proc_open('mode CON', $descriptorspec, $pipes, null, null, array('suppress_errors' => true));
+        if (is_resource($process)) {
+            $info = stream_get_contents($pipes[1]);
+            fclose($pipes[1]);
+            fclose($pipes[2]);
+            proc_close($process);
+
+            return $info;
+        }
+    }
+
     /**
      * Sorts commands in alphabetical order.
      *