Linux driver: added system_utils.hpp with a helper class that reads Linux machine ID

libuavcan_drivers/linux/apps/test_system_utils.cpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2015 Pavel Kirienko <pavel.kirienko@gmail.com>
+ */
+
+#include <uavcan_linux/uavcan_linux.hpp>
+#include <iostream>
+#include <iomanip>
+#include "debug.hpp"
+
+int main(int argc, const char** argv)
+{
+    try
+    {
+        const std::vector<std::string> iface_names(argv + 1, argv + argc);
+
+        const auto res = uavcan_linux::MachineIDReader(iface_names).readAndGetLocation();
+
+        const auto original_flags = std::cout.flags();
+
+        for (auto x : res.first)
+        {
+            std::cout << std::hex << std::setw(2) << std::setfill('0') << int(x);
+        }
+
+        std::cout.width(0);
+        std::cout.flags(original_flags);
+
+        std::cout << std::endl;
+
+        std::cout << res.second << std::endl;
+
+        return 0;
+    }
+    catch (const std::exception& ex)
+    {
+        std::cerr << "Exception: " << ex.what() << std::endl;
+        return 1;
+    }
+}