From 071cba94f91514f4a142198ffc8985a6061bfcb1 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Thu, 21 Nov 2013 13:34:01 +0100
Subject: [PATCH] Added DTSC::File error checking

---
 lib/dtsc.cpp | 8 ++++++++
 lib/dtsc.h   | 1 +
 2 files changed, 9 insertions(+)

diff --git a/lib/dtsc.cpp b/lib/dtsc.cpp
index b50e7aa4..01063ff6 100644
--- a/lib/dtsc.cpp
+++ b/lib/dtsc.cpp
@@ -575,11 +575,19 @@ DTSC::File & DTSC::File::operator =(const File & rhs){
   memcpy(buffer, rhs.buffer, 4);
 }
 
+DTSC::File::operator bool() const{
+  return F;
+}
+
 /// Open a filename for DTSC reading/writing.
 /// If create is true and file does not exist, attempt to create.
 DTSC::File::File(std::string filename, bool create){
   if (create){
     F = fopen(filename.c_str(), "w+b");
+    if(!F){
+      std::cerr << "Could not create file" << filename << ": " << strerror(errno) << std::endl;
+      return;
+    }
     //write an empty header
     fseek(F, 0, SEEK_SET);
     fwrite(DTSC::Magic_Header, 4, 1, F);
diff --git a/lib/dtsc.h b/lib/dtsc.h
index 2b00cc94..28fe8993 100644
--- a/lib/dtsc.h
+++ b/lib/dtsc.h
@@ -60,6 +60,7 @@ namespace DTSC {
       File(const File & rhs);
       File(std::string filename, bool create = false);
       File & operator = (const File & rhs);
+      operator bool() const;
       ~File();
       JSON::Value & getMeta();
       long long int getLastReadPos();