From 7e16c773751e1e1cf84e03aaf7d9f848590de805 Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gunnar.beutner@netways.de>
Date: Tue, 7 May 2013 09:14:23 +0200
Subject: [PATCH] Don't allow config items to inherit from themselves.

Fixes #4045
---
 lib/config/configitembuilder.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/config/configitembuilder.cpp b/lib/config/configitembuilder.cpp
index 111f42b6a..cbe1b6014 100644
--- a/lib/config/configitembuilder.cpp
+++ b/lib/config/configitembuilder.cpp
@@ -110,6 +110,11 @@ ConfigItem::Ptr ConfigItemBuilder::Compile(void)
 		BOOST_THROW_EXCEPTION(std::invalid_argument(msgbuf.str()));
 	}
 
+	BOOST_FOREACH(const String& parent, m_Parents) {
+		if (parent == m_Name)
+			BOOST_THROW_EXCEPTION(std::invalid_argument("Configuration item '" + m_Name + "' of type '" + m_Type + "' must not inherit from itself."));
+	}
+
 	ExpressionList::Ptr exprl = boost::make_shared<ExpressionList>();
 
 	Expression execExpr("", OperatorExecute, m_ExpressionList, m_DebugInfo);
-- 
2.40.0