C++11 port

Makefile

@@ -0,0 +1,21 @@
+all : gmain cmain
+
+clean :
+	rm -f gmain
+	rm -f cmain
+
+grun : gmain
+	./gmain
+
+crun : cmain
+	./cmain
+
+
+gmain : main.cpp
+	g++ -Wall -O2 -std=c++11 -pthread -lrt -o gmain main.cpp
+
+cmain : main.cpp
+	clang++ -Wall -O2 -std=c++11 -stdlib=libc++ -pthread -lrt -o cmain main.cpp
+
+
+.PHONY : all clean run

README.md

@@ -10,13 +10,31 @@ Publicly available documents already discuss exfiltration from secured systems u
 
 How to Use It
 ------------------
-Compile the problem using:
+You need a decent C++11 implementation(GCC or Clang)
+Compile the program by make:
 
-    gcc main.c -Wall -O2 -o main
+If you have GCC:
 
-And run it on an Apple MacBook Air (13-inch, Early 2015):
+    make gmain
+
+If you have Clang:
+
+    make cmain
+
+If you have both:
+
+    make
+
+And run it on your computer:
+
+For GCC:
+
+    make grun
+
+For Clang:
+
+    make crun
 
-    ./main
 
 Then use a Sony STR-K670P radio receiver with the included antenna and tune it to 1580 kHz on AM.
 

main.cpp

@@ -0,0 +1,73 @@
+// SYSTEM BUS RADIO
+// https://github.com/fulldecent/system-bus-radio
+// Copyright 2016 William Entriken
+// C++11 port by Ryou Ezoe
+
+#include <iostream>
+#include <iomanip>
+#include <chrono>
+#include <thread>
+#include <atomic>
+
+void square_am_signal(float time, float frequency)
+{
+    using namespace std::chrono ;
+
+    std::cout << "Playing / " << time << " seconds / " << frequency << " Hz\n" ;
+
+    seconds const sec{1} ;
+    nanoseconds const nsec{ sec } ;
+    using rep = nanoseconds::rep ;
+    auto nsec_per_sec = nsec.count() ;
+
+    nanoseconds const period( static_cast<rep>( nsec_per_sec / frequency) ) ;
+
+    auto start = high_resolution_clock::now() ;
+    auto const end = start + nanoseconds( static_cast<rep>(time * nsec_per_sec) ) ;
+
+    while (high_resolution_clock::now() < end)
+    {
+        auto mid = start + period / 2 ;
+        auto reset = start + period ;
+        while (high_resolution_clock::now() < mid)
+        {
+            std::atomic<unsigned> x{0} ;
+            ++x ; 
+        }
+        std::this_thread::sleep_until( reset ) ;
+        start = reset;
+    }
+}
+
+int main()
+{
+    while (1)
+    {
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2093);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.790, 2673);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.790, 2349);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 3136);
+        square_am_signal(0.790, 3136);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2093);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.400, 2673);
+        square_am_signal(0.400, 2349);
+        square_am_signal(0.790, 2093);
+    }
+}