Add tools -> Generate CA

Added file field to GuiForm

1 files changed, 12 insertions, 0 deletions

diff --git a/src/logger.cc b/src/logger.cc
index 343bb4d..df1af0c 100644
--- a/src/logger.cc
+++ b/src/logger.cc
@@ -127,6 +127,12 @@ private:
   FILE* fh_;
 };
 
+class NullLogger : public Logger {
+public:
+  void out(Level UNUSED(lvl), char const* UNUSED(format), ...) override {
+  }
+};
+
 }  // namespace
 
 // static
@@ -147,3 +153,9 @@ Logger* Logger::create_file(std::string const& path) {
   }
   return nullptr;
 }
+
+// static
+Logger* Logger::null() {
+  static NullLogger logger;
+  return &logger;
+}