From 4be5000c22a0cb1d7201f01a1c851783170ad2e2 Mon Sep 17 00:00:00 2001
From: Caoimhe <caoimhebyrne06@gmail.com>
Date: Sat, 3 Jun 2023 00:16:59 +0100
Subject: [PATCH] SpiceAgent: Exit early if `SPICE_DEVICE` doesn't exist

---
 Userland/Services/SpiceAgent/main.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Userland/Services/SpiceAgent/main.cpp b/Userland/Services/SpiceAgent/main.cpp
index 111c6b78d36..a8520ef2b29 100644
--- a/Userland/Services/SpiceAgent/main.cpp
+++ b/Userland/Services/SpiceAgent/main.cpp
@@ -10,6 +10,7 @@
 #include <LibCore/StandardPaths.h>
 #include <LibCore/System.h>
 #include <LibDesktop/Launcher.h>
+#include <LibFileSystem/FileSystem.h>
 #include <LibGUI/Application.h>
 #include <LibGUI/Clipboard.h>
 #include <LibIPC/ConnectionToServer.h>
@@ -20,6 +21,10 @@ static constexpr auto SPICE_DEVICE = "/dev/hvc0p1"sv;
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
+    if (!FileSystem::exists(SPICE_DEVICE)) {
+        return Error::from_string_literal("Failed to find spice device file!");
+    }
+
     // We use the application to be able to easily write to the user's clipboard.
     auto app = TRY(GUI::Application::create(arguments));