Basic initialization of Mac sandbox without extended profile

include/sandbox.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+namespace rack {
+bool sandboxInit();
+}

src/main.cpp

@@ -1,6 +1,7 @@
 #include "engine.hpp"
 #include "gui.hpp"
 #include "app.hpp"
+#include "sandbox.hpp"
 #include "plugin.hpp"
 #include "settings.hpp"
 #include "asset.hpp"
@@ -31,6 +32,7 @@ int main(int argc, char* argv[]) {
 		info("Local directory: %s", localDir.c_str());
 	}
 
+	sandboxInit();
 	pluginInit();
 	engineInit();
 	guiInit();

src/sandbox.cpp

@@ -0,0 +1,28 @@
+#include "sandbox.hpp"
+#include "util.hpp"
+namespace rack {
+#if defined(ARCH_MAC)
+#include <sandbox.h>
+
+bool sandboxInit() {
+  char* error_buff = NULL;
+  //int error = sandbox_init(final_sandbox_profile_str.c_str(), 0, &error_buff);
+  int error = sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, &error_buff);
+  bool success = (error == 0 && error_buff == NULL);
+  if(!success) {
+    info("Sandbox initialization error (%d): %s", error, error_buff);
+  } else {
+    info("Sandbox initialized!");
+  }
+  sandbox_free_error(error_buff);
+
+  return success;
+}
+
+
+#else
+	bool sandboxInit() {
+    return false;
+  }
+#endif
+}