Merge commit 'sebastian/bug1831'

changes/bug1831

@@ -0,0 +1,8 @@
+  o Minor bugfixes
+    - Fix a memory leak in the error case of circuit_build_times_parse_state().
+      Bugfix on 0.2.2.14-alpha; fixes bug 1831 partially.
+    - Fix a memory leak in dirvote_add_signatures_to_pending_consensus(). 
+      Bugfix on 0.2.2.6-alpha; fixes bug 1831 partially.
+    - Fix a memory leak in dirvote_compute_consensuses().
+      Bugfix on 0.2.0.3-alpha; fixes bug 1831 partially.
+

contrib/checkSpace.pl

@@ -20,6 +20,10 @@ for $fn (@ARGV) {
         if (/\t/) {
             print "      TAB:$fn:$.\n";
         }
+        ## Warn about markers that don't have a space in front of them
+        if (/^[a-zA-Z_][a-zA-Z_0-9]*:/) {
+            print "nosplabel:$fn:$.\n";
+        }
         ## Warn about trailing whitespace.
         if (/ +$/) {
             print "Space\@EOL:$fn:$.\n";

src/or/circuitbuild.c

@@ -605,11 +605,11 @@ circuit_build_times_filter_timeouts(circuit_build_times_t *cbt)
  * after we do so. Use this result to estimate parameters and
  * calculate the timeout.
  *
- * Returns -1 and sets msg on error. Msg must be freed by the caller.
+ * Return -1 on error.
  */
 int
 circuit_build_times_parse_state(circuit_build_times_t *cbt,
-                                or_state_t *state, char **msg)
+                                or_state_t *state)
 {
   int tot_values = 0;
   uint32_t loaded_cnt = 0, N = 0;
@@ -617,7 +617,7 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
   unsigned int i;
   build_time_t *loaded_times;
   circuit_build_times_init(cbt);
-  *msg = NULL;
+  int err = 0;
 
   if (circuit_build_times_disabled()) {
     return 0;
@@ -631,8 +631,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
     smartlist_split_string(args, line->value, " ",
                            SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
     if (smartlist_len(args) < 2) {
-      *msg = tor_strdup("Unable to parse circuit build times: "
+      log_warn(LD_GENERAL, "Unable to parse circuit build times: "
                            "Too few arguments to CircuitBuildTime");
+      err = 1;
       SMARTLIST_FOREACH(args, char*, cp, tor_free(cp));
       smartlist_free(args);
       break;
@@ -645,8 +646,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
       ms = (build_time_t)tor_parse_ulong(ms_str, 0, 0,
                                          CBT_BUILD_TIME_MAX, &ok, NULL);
       if (!ok) {
-        *msg = tor_strdup("Unable to parse circuit build times: "
+        log_warn(LD_GENERAL, "Unable to parse circuit build times: "
                              "Unparsable bin number");
+        err = 1;
         SMARTLIST_FOREACH(args, char*, cp, tor_free(cp));
         smartlist_free(args);
         break;
@@ -654,8 +656,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
       count = (uint32_t)tor_parse_ulong(count_str, 0, 0,
                                         UINT32_MAX, &ok, NULL);
       if (!ok) {
-        *msg = tor_strdup("Unable to parse circuit build times: "
+        log_warn(LD_GENERAL, "Unable to parse circuit build times: "
                              "Unparsable bin count");
+        err = 1;
         SMARTLIST_FOREACH(args, char*, cp, tor_free(cp));
         smartlist_free(args);
         break;
@@ -692,10 +695,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
             "Corrupt state file? Build times count mismatch. "
             "Read %d times, but file says %d", loaded_cnt,
             state->TotalBuildTimes);
-    *msg = tor_strdup("Build times count mismatch.");
+    err = 1;
     circuit_build_times_reset(cbt);
-    tor_free(loaded_times);
+    goto done;
-    return -1;
   }
 
   circuit_build_times_shuffle_and_store_array(cbt, loaded_times, loaded_cnt);
@@ -716,10 +718,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
             "Corrupt state file? Shuffled build times mismatch. "
             "Read %d times, but file says %d", tot_values,
             state->TotalBuildTimes);
-    *msg = tor_strdup("Build times count mismatch.");
+    err = 1;
     circuit_build_times_reset(cbt);
-    tor_free(loaded_times);
+    goto done;
-    return -1;
   }
 
   circuit_build_times_set_timeout(cbt);
@@ -728,8 +729,9 @@ circuit_build_times_parse_state(circuit_build_times_t *cbt,
     circuit_build_times_filter_timeouts(cbt);
   }
 
+ done:
   tor_free(loaded_times);
-  return *msg ? -1 : 0;
+  return err ? -1 : 0;
 }
 
 /**

src/or/circuitbuild.h

@@ -81,7 +81,7 @@ extern circuit_build_times_t circ_times;
 void circuit_build_times_update_state(circuit_build_times_t *cbt,
                                       or_state_t *state);
 int circuit_build_times_parse_state(circuit_build_times_t *cbt,
-                                    or_state_t *state, char **msg);
+                                    or_state_t *state);
 void circuit_build_times_count_timeout(circuit_build_times_t *cbt,
                                        int did_onehop);
 int circuit_build_times_count_close(circuit_build_times_t *cbt,

src/or/config.c

@@ -4971,9 +4971,7 @@ or_state_set(or_state_t *new_state)
     tor_free(err);
     ret = -1;
   }
-  if (circuit_build_times_parse_state(&circ_times, global_state, &err) < 0) {
+  if (circuit_build_times_parse_state(&circ_times, global_state) < 0) {
-    log_warn(LD_GENERAL,"%s",err);
-    tor_free(err);
     ret = -1;
   }
   return ret;

src/or/dirvote.c

@@ -2942,6 +2942,7 @@ dirvote_compute_consensuses(void)
                                strlen(pending_consensus_signatures), 0);
   log_notice(LD_DIR, "Signature(s) posted.");
 
+  smartlist_free(votes);
   return 0;
  err:
   smartlist_free(votes);
@@ -3008,6 +3009,7 @@ dirvote_add_signatures_to_pending_consensus(
       networkstatus_vote_free(v);
     }
     *msg_out = "Signatures added";
+    tor_free(new_signatures);
   } else if (r == 0) {
     *msg_out = "Signatures ignored";
   } else {
@@ -3137,7 +3139,7 @@ void
 dirvote_free_all(void)
 {
   dirvote_clear_votes(1);
-  /* now empty as a result of clear_pending_votes. */
+  /* now empty as a result of dirvote_clear_votes(). */
   smartlist_free(pending_vote_list);
   pending_vote_list = NULL;
   smartlist_free(previous_vote_list);
@@ -3146,7 +3148,7 @@ dirvote_free_all(void)
   dirvote_clear_pending_consensuses();
   tor_free(pending_consensus_signatures);
   if (pending_consensus_signature_list) {
-    /* now empty as a result of clear_pending_votes. */
+    /* now empty as a result of dirvote_clear_votes(). */
     smartlist_free(pending_consensus_signature_list);
     pending_consensus_signature_list = NULL;
   }

src/test/test.c

@@ -485,7 +485,6 @@ test_circuit_timeout(void)
   circuit_build_times_t final;
   double timeout1, timeout2;
   or_state_t state;
-  char *msg;
   int i, runs;
   double close_ms;
   circuit_build_times_init(&initial);
@@ -525,7 +524,7 @@ test_circuit_timeout(void)
   test_assert(estimate.total_build_times <= CBT_NCIRCUITS_TO_OBSERVE);
 
   circuit_build_times_update_state(&estimate, &state);
-  test_assert(circuit_build_times_parse_state(&final, &state, &msg) == 0);
+  test_assert(circuit_build_times_parse_state(&final, &state) == 0);
 
   circuit_build_times_update_alpha(&final);
   timeout2 = circuit_build_times_calculate_timeout(&final,