From b76930b0bdd91337974bc5f1c23c38f362911ccc Mon Sep 17 00:00:00 2001
From: Lion Kortlepel <development@kortlepel.com>
Date: Fri, 28 Jun 2024 15:37:46 +0200
Subject: [PATCH] fix game's stdout/stderr printing to launcher console on
 linux

---
 src/GameStart.cpp | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/GameStart.cpp b/src/GameStart.cpp
index ac99d63..a3749fa 100644
--- a/src/GameStart.cpp
+++ b/src/GameStart.cpp
@@ -10,6 +10,8 @@
 #include <windows.h>
 #elif defined(__linux__)
 #include "vdf_parser.hpp"
+#include <cerrno>
+#include <cstring>
 #include <pwd.h>
 #include <spawn.h>
 #include <sys/types.h>
@@ -90,11 +92,27 @@ void StartGame(std::string Dir) {
 }
 #elif defined(__linux__)
 void StartGame(std::string Dir) {
-    int status;
     std::string filename = (Dir + "/BinLinux/BeamNG.drive.x64");
     char* argv[] = { filename.data(), NULL };
     pid_t pid;
-    int result = posix_spawn(&pid, filename.c_str(), NULL, NULL, argv, environ);
+
+    posix_spawn_file_actions_t file_actions;
+    auto status = posix_spawn_file_actions_init(&file_actions);
+    // disable stdout
+    if (status != 0) {
+        error(std::string("posix_spawn_file_actions_init failed: ") + std::strerror(errno));
+    }
+    status = posix_spawn_file_actions_addclose(&file_actions, STDOUT_FILENO);
+    if (status != 0) {
+        error(std::string("posix_spawn_file_actions_addclose for STDOUT failed: ") + std::strerror(errno));
+    }
+    status = posix_spawn_file_actions_addclose(&file_actions, STDERR_FILENO);
+    if (status != 0) {
+        error(std::string("posix_spawn_file_actions_addclose for STDERR failed: ") + std::strerror(errno));
+    }
+
+    // launch the game
+    int result = posix_spawn(&pid, filename.c_str(), &file_actions, NULL, argv, environ);
 
     if (result != 0) {
         error("Failed to Launch the game! launcher closing soon");