1 files changed, 38 insertions, 0 deletions
diff --git a/src/app/config/quiet_level.c b/src/app/config/quiet_level.c
new file mode 100644
index 0000000000..e04faaef3a
--- /dev/null
+++ b/src/app/config/quiet_level.c
@@ -0,0 +1,38 @@
+/* Copyright (c) 2001 Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2020, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * @file quiet_level.c
+ * @brief Code to handle default logging level (quiet/hush/normal).
+ **/
+
+#include "orconfig.h"
+#include "lib/log/log.h"
+#include "app/config/quiet_level.h"
+
+/** Decides our behavior when no logs are configured/before any logs have been
+ * configured.  For QUIET_NONE, we log notice to stdout as normal.  For
+ * QUIET_HUSH, we log warnings only.  For QUIET_SILENT, we log nothing.
+ */
+quiet_level_t quiet_level = 0;
+
+/** Add a default log (or not), depending on the value of <b>quiet</b>. */
+void
+add_default_log_for_quiet_level(quiet_level_t quiet)
+{
+  switch (quiet) {
+    case QUIET_SILENT:
+      /* --quiet: no initial logging */
+      return;
+    case QUIET_HUSH:
+    /* --hush: log at warning or higher. */
+      add_default_log(LOG_WARN);
+      break;
+    case QUIET_NONE: FALLTHROUGH;
+    default:
+      add_default_log(LOG_NOTICE);
+  }
+}