some fixes so far

svn:r2880

src/or/config.c

@@ -187,7 +187,7 @@ static int write_configuration_file(const char *fname, or_options_t *options);
 
 /** Command-line and config-file options. */
 static or_options_t *global_options=NULL;
-/** Name of ost recently read torrc file. */
+/** Name of most recently read torrc file. */
 static char *config_fname = NULL;
 
 /** Return the currently configured options. */
@@ -325,7 +325,7 @@ options_act(void) {
     smin = config_dump_options(options, 1);
     smax = config_dump_options(options, 0);
     log_fn(LOG_DEBUG, "These are our options:\n%s",smax);
-    log_fn(LOG_DEBUGS, "We changed these options:\n%s",smin);
+    log_fn(LOG_DEBUG, "We changed these options:\n%s",smin);
     tor_free(smin);
     tor_free(smax);
   }
@@ -2081,16 +2081,25 @@ static int
 write_configuration_file(const char *fname, or_options_t *options)
 {
   char fn_tmp[1024];
-  char *new_val=NULL, *new_conf=NULL;
+  char *old_val=NULL, *new_val=NULL, *new_conf=NULL;
   int rename_old = 0, r;
   size_t len;
 
-  if (fname && file_status(fname) == FN_FILE) {
-    char *old_val = read_file_to_str(fname, 0);
-    if (strcmpstart(old_val, GENERATED_FILE_PREFIX)) {
-      rename_old = 1;
+  if (fname) {
+    switch (file_status(fname)) {
+      case FN_FILE:
+        old_val = read_file_to_str(fname, 0);
+        if (strcmpstart(old_val, GENERATED_FILE_PREFIX)) {
+          rename_old = 1;
+        }
+        tor_free(old_val);
+        break;
+      case FN_NOENT:
+        break;
+      default:
+        log_fn(LOG_WARN,"Config file %s is not a file? Failing.", fname);
+        return -1;
     }
-    tor_free(old_val);
   }
 
   if (!(new_conf = config_dump_options(options, 1))) {
@@ -2109,7 +2118,7 @@ write_configuration_file(const char *fname, or_options_t *options)
         log_fn(LOG_WARN, "Filename too long");
         goto err;
       }
-      if (file_status(fn_tmp) != FN_FILE)
+      if (file_status(fn_tmp) == FN_NOENT)
         break;
       ++i;
     }

src/or/control.c

@@ -373,11 +373,10 @@ handle_control_saveconf(connection_t *conn, uint16_t len,
                         const char *body)
 {
   if (save_current_config()<0) {
-    send_control_done(conn);
-  } else {
     send_control_error(conn, ERR_INTERNAL,
                        "Unable to write configuration to disk.");
   }
+  send_control_done(conn);
   return 0;
 }
 

src/or/directory.c

@@ -140,32 +140,33 @@ directory_post_to_dirservers(uint8_t purpose, const char *payload,
     });
 }
 
-/** Start a connection to a random running directory server, using connection
- * purpose 'purpose' requesting 'payload' (length 'payload_len').  The purpose
- * should be one of 'DIR_PURPOSE_FETCH_DIR' or 'DIR_PURPOSE_FETCH_RENDDESC' or
- * 'DIR_PURPOSE_FETCH_RUNNING_LIST.'
+/** Start a connection to a random running directory server, using
+ * connection purpose 'purpose' requesting 'resource'.  The purpose
+ * should be one of 'DIR_PURPOSE_FETCH_DIR',
+ * 'DIR_PURPOSE_FETCH_RENDDESC', 'DIR_PURPOSE_FETCH_RUNNING_LIST.'
  */
 void
 directory_get_from_dirserver(uint8_t purpose, const char *resource)
 {
   routerinfo_t *r = NULL;
   trusted_dir_server_t *ds = NULL;
+  int fascistfirewall = get_options()->FascistFirewall;
 
   if (purpose == DIR_PURPOSE_FETCH_DIR) {
     if (advertised_server_mode()) {
       /* only ask authdirservers, and don't ask myself */
-      ds = router_pick_trusteddirserver(1, get_options()->FascistFirewall);
+      ds = router_pick_trusteddirserver(1, fascistfirewall);
     } else {
       /* anybody with a non-zero dirport will do */
-      r = router_pick_directory_server(1, get_options()->FascistFirewall);
+      r = router_pick_directory_server(1, fascistfirewall);
       if (!r) {
         log_fn(LOG_INFO, "No router found for directory; falling back to dirserver list");
-        ds = router_pick_trusteddirserver(1, get_options()->FascistFirewall);
+        ds = router_pick_trusteddirserver(1, fascistfirewall);
       }
     }
   } else if (purpose == DIR_PURPOSE_FETCH_RUNNING_LIST) {
     /* right now, running-routers isn't cached, so ask a trusted directory */
-    ds = router_pick_trusteddirserver(0, get_options()->FascistFirewall);
+    ds = router_pick_trusteddirserver(0, fascistfirewall);
   } else { // (purpose == DIR_PURPOSE_FETCH_RENDDESC)
     /* only ask authdirservers, any of them will do */
     /* Never use fascistfirewall; we're going via Tor. */