symfony
diff --git a/‎src/Symfony/Component/Process/Process.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Process/Process.php
+3Lines changed: 3 additions & 0 deletions b/‎src/Symfony/Component/Process/Process.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Process/Process.php
+3Lines changed: 3 additions & 0 deletions
@@ -792,6 +792,9 @@ public function setTty($tty)
         if ('\\' === DIRECTORY_SEPARATOR && $tty) {
             throw new RuntimeException('TTY mode is not supported on Windows platform.');
         }
+        if ($tty && (!file_exists('/dev/tty') || !is_readable('/dev/tty'))) {
+            throw new RuntimeException('TTY mode requires /dev/tty to be readable.');
+        }
 
         $this->tty = (bool) $tty;
Original file line number	Diff line number	Diff line change
`@@ -792,6 +792,9 @@ public function setTty($tty)`
`792`	`792`	`if ('\\' === DIRECTORY_SEPARATOR && $tty) {`
`793`	`793`	`throw new RuntimeException('TTY mode is not supported on Windows platform.');`
`794`	`794`	`}`
	`795`	`+ if ($tty && (!file_exists('/dev/tty') \|\| !is_readable('/dev/tty'))) {`
	`796`	`+ throw new RuntimeException('TTY mode requires /dev/tty to be readable.');`
	`797`	`+ }`
`795`	`798`
`796`	`799`	`$this->tty = (bool) $tty;`
`797`	`800`