Make --quiet and --hush apply to default logs, not only initial logs

Fixes bug 3550; bugfix on 0.2.0.10-alpha (where --quiet was introduced).

changes/bug3550

@@ -0,0 +1,5 @@
+  o Minor bugfixes:
+    - The "--quiet" and "--hush" options now apply not only to Tor's
+      behavior before user-configured logs are added, but also to
+      Tor's behavior in the absense of configured logs. Fixes bug
+      3550; bugfix on 0.2.0.10-alpha.

src/or/config.c

@@ -40,6 +40,9 @@
 
 #include "procmon.h"
 
+/* From main.c */
+extern int quiet_level;
+
 /** Enumeration of types which option values can take */
 typedef enum config_type_t {
   CONFIG_TYPE_STRING = 0,   /**< An arbitrary string. */
@@ -3095,8 +3098,12 @@ options_validate(or_options_t *old_options, or_options_t *options,
         "misconfigured or something else goes wrong.");
 
   /* Special case on first boot if no Log options are given. */
-  if (!options->Logs && !options->RunAsDaemon && !from_setconf)
-    config_line_append(&options->Logs, "Log", "notice stdout");
+  if (!options->Logs && !options->RunAsDaemon && !from_setconf) {
+    if (quiet_level == 0)
+        config_line_append(&options->Logs, "Log", "notice stdout");
+    else if (quiet_level == 1)
+        config_line_append(&options->Logs, "Log", "warn stdout");
+  }
 
   if (options_init_logs(options, 1)<0) /* Validate the log(s) */
     REJECT("Failed to validate Log options. See logs for details.");

src/or/main.c

@@ -154,6 +154,12 @@ int can_complete_circuit=0;
  * they are obsolete? */
 #define TLS_HANDSHAKE_TIMEOUT (60)
 
+/** Decides our behavior when no logs are configured/before any
+ * logs have been configured.  For 0, we log notice to stdout as normal.
+ * For 1, we log warnings only.  For 2, we log nothing.
+ */
+int quiet_level = 0;
+
 /********* END VARIABLES ************/
 
 /****************************************************************************
@@ -2148,6 +2154,7 @@ tor_init(int argc, char *argv[])
     default:
       add_temp_log(LOG_NOTICE);
   }
+  quiet_level = quiet;
 
   log(LOG_NOTICE, LD_GENERAL, "Tor v%s. This is experimental software. "
       "Do not rely on it for strong anonymity. (Running on %s)",get_version(),