Added utils

.gitignore

@@ -2,4 +2,5 @@ libmbus
 build
 src/old.cc
 node_modules
-*.build
+*.build
+npm-debug.log

src/util.cc

@@ -0,0 +1,15 @@
+#include "util.h"
+#include <cstdlib>
+#include <cstring>
+
+char *get(v8::Handle<v8::Value> value, const char *fallback) {
+    if (value->IsString()) {
+        v8::String::AsciiValue string(value);
+        char *str = (char *) malloc(string.length() + 1);
+        strcpy(str, *string);
+        return str;
+    }
+    char *str = (char *) malloc(strlen(fallback) + 1);
+    strcpy(str, fallback);
+    return str;
+}

src/util.h

@@ -0,0 +1,9 @@
+#ifndef UTIL_H
+#define UTIL_H
+
+#include <node.h>
+#include <v8.h>
+
+char *get(v8::Handle<v8::Value> value, const char *fallback = "");
+
+#endif