From ced82a0501423bdce13210006bf39fe0263f0c24 Mon Sep 17 00:00:00 2001
From: Ben Clayton <headlessclayton@gmail.com>
Date: Fri, 17 Jan 2020 19:01:13 +0000
Subject: [PATCH] examples: Change stdin and stdout to binary mode

On windows text mode for these plays with newline escape sequences, breaking the ContextStream encoding.

Fixes: #12
---
 examples/hello_debugger.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/examples/hello_debugger.cpp b/examples/hello_debugger.cpp
index dd234f2..342e862 100644
--- a/examples/hello_debugger.cpp
+++ b/examples/hello_debugger.cpp
@@ -24,11 +24,20 @@
 #include <mutex>
 #include <unordered_set>
 
+#ifdef _MSC_VER
+#define OS_WINDOWS 1
+#endif
+
 // Uncomment the line below and change <path-to-log-file> to a file path to
 // write all DAP communications to the given path.
 //
 // #define LOG_TO_FILE "<path-to-log-file>"
 
+#ifdef OS_WINDOWS
+#include <fcntl.h>  // _O_BINARY
+#include <io.h>     // _setmode
+#endif              // OS_WINDOWS
+
 namespace {
 
 // sourceContent holds the synthetic file source.
@@ -147,7 +156,14 @@ void Event::fire() {
 }  // anonymous namespace
 
 // main() entry point to the DAP server.
-int main(int, char*[]) {
+int main(int, char* []) {
+#ifdef OS_WINDOWS
+  // Change stdin & stdout from text mode to binary mode.
+  // This ensures sequences of \r\n are not changed to \n.
+  _setmode(_fileno(stdin), _O_BINARY);
+  _setmode(_fileno(stdout), _O_BINARY);
+#endif  // OS_WINDOWS
+
   std::shared_ptr<dap::Writer> log;
 #ifdef LOG_TO_FILE
   log = dap::file(LOG_TO_FILE);