LibVT: Fix emitting \0 when pressing a modifier key

This causes the kernel to return EOF, which in turn confuses everything. This is
a regression from the LibVT port of VirtualConsole.

1 files changed, 5 insertions, 0 deletions

diff --git a/Libraries/LibVT/Terminal.cpp b/Libraries/LibVT/Terminal.cpp
index d35f64066e..22af6fa62b 100644
--- a/Libraries/LibVT/Terminal.cpp
+++ b/Libraries/LibVT/Terminal.cpp
@@ -1046,6 +1046,11 @@ void Terminal::handle_key_press(KeyCode key, u8 character, u8 flags)
         break;
     }
 
+    if (!character) {
+        // Probably a modifier being pressed.
+        return;
+    }
+
     if (shift && key == KeyCode::Key_Tab) {
         emit_string("\033[Z");
         return;