From 993e7be707e04992f3366cdf8b09953e29b10f81 Mon Sep 17 00:00:00 2001
From: Patric Stout <truebrain@openttd.org>
Date: Thu, 31 Aug 2023 18:52:52 +0200
Subject: [PATCH] Fix: [Script] GSAdmin.Send() could generate invalid JSON
 (#11250)

---
 src/script/api/script_admin.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/script/api/script_admin.cpp b/src/script/api/script_admin.cpp
index 42615d2aed..9f55e1b958 100644
--- a/src/script/api/script_admin.cpp
+++ b/src/script/api/script_admin.cpp
@@ -129,7 +129,10 @@
 	}
 
 	std::string json;
-	ScriptAdmin::MakeJSON(vm, -1, SQUIRREL_MAX_DEPTH, json);
+	if (!ScriptAdmin::MakeJSON(vm, -1, SQUIRREL_MAX_DEPTH, json)) {
+		sq_pushinteger(vm, 0);
+		return 1;
+	}
 
 	if (json.length() > NETWORK_GAMESCRIPT_JSON_LENGTH) {
 		ScriptLog::Error("You are trying to send a table that is too large to the AdminPort. No data sent.");