diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/or/protover.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/or/protover.c b/src/or/protover.c index 45f0377d61..e8524a25b5 100644 --- a/src/or/protover.c +++ b/src/or/protover.c @@ -453,6 +453,10 @@ cmp_single_ent_by_version(const void **a_, const void **b_) static char * contract_protocol_list(const smartlist_t *proto_strings) { + if (smartlist_len(proto_strings) == 0) { + return tor_strdup(""); + } + // map from name to list of single-version entries strmap_t *entry_lists_by_name = strmap_new(); // list of protocol names @@ -561,6 +565,10 @@ char * protover_compute_vote(const smartlist_t *list_of_proto_strings, int threshold) { + if (smartlist_len(list_of_proto_strings) == 0) { + return tor_strdup(""); + } + smartlist_t *all_entries = smartlist_new(); // First, parse the inputs and break them into singleton entries. @@ -587,6 +595,11 @@ protover_compute_vote(const smartlist_t *list_of_proto_strings, smartlist_free(unexpanded); } SMARTLIST_FOREACH_END(vote); + if (smartlist_len(all_entries) == 0) { + smartlist_free(all_entries); + return tor_strdup(""); + } + // Now sort the singleton entries smartlist_sort_strings(all_entries); |