From dcbb2df776387da8ada95ce4d26ca68b68237972 Mon Sep 17 00:00:00 2001
From: aleos <aleos89@users.noreply.github.com>
Date: Tue, 8 Aug 2017 20:50:09 -0400
Subject: [PATCH] Corrected YAML file parsing * Fixes #2323. * YAML file
 parsing will now properly catch and display warnings when unable to read a
 file. Thanks to @CairoLee!

---
 3rdparty/yaml-cpp/src/parse.cpp | 2 +-
 src/common/yamlwrapper.cpp      | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/3rdparty/yaml-cpp/src/parse.cpp b/3rdparty/yaml-cpp/src/parse.cpp
index 0b2ae4a4f6..a215e23f99 100644
--- a/3rdparty/yaml-cpp/src/parse.cpp
+++ b/3rdparty/yaml-cpp/src/parse.cpp
@@ -31,7 +31,7 @@ Node Load(std::istream& input) {
 
 Node LoadFile(const std::string& filename) {
   std::ifstream fin(filename.c_str());
-  if (!fin) {
+  if (fin.bad()) {
     throw BadFile();
   }
   return Load(fin);
diff --git a/src/common/yamlwrapper.cpp b/src/common/yamlwrapper.cpp
index a63532f4cb..f14bf513e2 100644
--- a/src/common/yamlwrapper.cpp
+++ b/src/common/yamlwrapper.cpp
@@ -47,6 +47,8 @@ yamlwrapper* yaml_load_file(const char* file_name) {
 		node = YAML::LoadFile(file_name);
 		if (!node.IsDefined())
 			return NULL;
+		if (node.IsNull())
+			return NULL;
 	} catch (YAML::ParserException &e) {
 		ShowError("YAML Exception Caught: %s\n", e.what());
 		return NULL;