From 42114c57847015ed4a41216584c580e3d4a010f0 Mon Sep 17 00:00:00 2001
From: AnotherTest <ali.mpfard@gmail.com>
Date: Mon, 25 May 2020 23:43:43 +0430
Subject: [PATCH] Shell: Refuse to be suspended with ^Z

Suspending the shell while interacting with it is pretty weird, so let's
just disallow this behaviour.
---
 Shell/main.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Shell/main.cpp b/Shell/main.cpp
index 06ebebfe78..f9278fa020 100644
--- a/Shell/main.cpp
+++ b/Shell/main.cpp
@@ -104,6 +104,9 @@ int main(int argc, char** argv)
         }
     });
 
+    // Ignore SIGTSTP as the shell should not be suspended with ^Z.
+    signal(SIGTSTP, [](auto) {});
+
     if (argc > 2 && !strcmp(argv[1], "-c")) {
         dbgprintf("sh -c '%s'\n", argv[2]);
         shell->run_command(argv[2]);