[tor-commits] [tor/maint-0.3.1] Check arguments and initialise variables in compute_weighted_bandwidths()

[nickm@xxxxxxxxxxxxxx]

commit 4f944cc4cc1971baf2924bc3f713feef7b010691
Author: teor <teor2345@xxxxxxxxx>
Date:   Wed Nov 8 14:17:37 2017 +1100

    Check arguments and initialise variables in compute_weighted_bandwidths()
    
    Cleanup after 23318.
---
 src/or/routerlist.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index 80486cccb..c9d2cbaea 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -2547,9 +2547,12 @@ compute_weighted_bandwidths(const smartlist_t *sl,
   double Wg = -1, Wm = -1, We = -1, Wd = -1;
   double Wgb = -1, Wmb = -1, Web = -1, Wdb = -1;
   guardfraction_bandwidth_t guardfraction_bw;
-  double *bandwidths;
+  double *bandwidths = NULL;
   double total_bandwidth = 0.0;
 
+  tor_assert(sl);
+  tor_assert(bandwidths_out);
+
   /* Can't choose exit and guard at same time */
   tor_assert(rule == NO_WEIGHTING ||
              rule == WEIGHT_FOR_EXIT ||
@@ -2557,6 +2560,8 @@ compute_weighted_bandwidths(const smartlist_t *sl,
              rule == WEIGHT_FOR_MID ||
              rule == WEIGHT_FOR_DIR);
 
+  *bandwidths_out = NULL;
+
   if (total_bandwidth_out) {
     *total_bandwidth_out = 0.0;
   }



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