Merge pull request #5502

25a7cfd add a few checks where it seems appropriate (moneromooo-monero)
1a66a86 remove unused code (moneromooo-monero)

src/blockchain_db/lmdb/db_lmdb.cpp

@@ -707,7 +707,7 @@ uint64_t BlockchainLMDB::get_estimated_batch_size(uint64_t batch_num_blocks, uin
       ++num_blocks_used;
     }
     if (my_rtxn) block_rtxn_stop();
-    avg_block_size = total_block_size / num_blocks_used;
+    avg_block_size = total_block_size / (num_blocks_used ? num_blocks_used : 1);
     MDEBUG("average block size across recent " << num_blocks_used << " blocks: " << avg_block_size);
   }
 estim:

src/blockchain_utilities/blockchain_blackball.cpp

@@ -637,6 +637,7 @@ static void inc_per_amount_outputs(MDB_txn *txn, uint64_t amount, uint64_t total
   v.mv_size = 2 * sizeof(uint64_t);
   v.mv_data = (void*)data;
   dbr = mdb_cursor_put(cur, &k, &v, 0);
+  CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to write record for per amount outputs: " + std::string(mdb_strerror(dbr)));
   mdb_cursor_close(cur);
 }
 

src/crypto/slow-hash.c

@@ -897,7 +897,6 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
 
     // locals to avoid constant TLS dereferencing
     uint8_t *local_hp_state = hp_state;
-    v4_random_math_JIT_func local_hp_jitfunc = hp_jitfunc;
 
     /* CryptoNight Step 1:  Use Keccak1600 to initialize the 'state' (and 'text') buffers from the data. */
     if (prehashed) {

src/cryptonote_core/blockchain.cpp

@@ -2039,7 +2039,6 @@ bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height,
   if (to_height > 0 && to_height < from_height)
     return false;
 
-  const uint64_t real_start_height = start_height;
   if (from_height > start_height)
     start_height = from_height;
 
@@ -2053,7 +2052,7 @@ bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height,
   {
     std::vector<uint64_t> heights;
     heights.reserve(to_height + 1 - start_height);
-    uint64_t real_start_height = start_height > 0 ? start_height-1 : start_height;
+    const uint64_t real_start_height = start_height > 0 ? start_height-1 : start_height;
     for (uint64_t h = real_start_height; h <= to_height; ++h)
       heights.push_back(h);
     distribution = m_db->get_block_cumulative_rct_outputs(heights);
@@ -3254,7 +3253,6 @@ uint64_t Blockchain::get_dynamic_base_fee(uint64_t block_reward, size_t median_b
 bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
 {
   const uint8_t version = get_current_hard_fork_version();
-  const uint64_t blockchain_height = m_db->height();
 
   uint64_t median = 0;
   uint64_t already_generated_coins = 0;
@@ -3962,14 +3960,12 @@ bool Blockchain::update_next_cumulative_weight_limit(uint64_t *long_term_effecti
   const uint64_t db_height = m_db->height();
   const uint8_t hf_version = get_current_hard_fork_version();
   uint64_t full_reward_zone = get_min_block_weight(hf_version);
-  uint64_t long_term_block_weight;
 
   if (hf_version < HF_VERSION_LONG_TERM_BLOCK_WEIGHT)
   {
     std::vector<uint64_t> weights;
     get_last_n_blocks_weights(weights, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
     m_current_block_cumul_weight_median = epee::misc_utils::median(weights);
-    long_term_block_weight = weights.back();
   }
   else
   {
@@ -3991,7 +3987,7 @@ bool Blockchain::update_next_cumulative_weight_limit(uint64_t *long_term_effecti
     m_long_term_effective_median_block_weight = std::max<uint64_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5, long_term_median);
 
     uint64_t short_term_constraint = m_long_term_effective_median_block_weight + m_long_term_effective_median_block_weight * 2 / 5;
-    long_term_block_weight = std::min<uint64_t>(block_weight, short_term_constraint);
+    uint64_t long_term_block_weight = std::min<uint64_t>(block_weight, short_term_constraint);
 
     if (db_height == 1)
     {

src/cryptonote_core/cryptonote_core.cpp

@@ -447,6 +447,7 @@ namespace cryptonote
       m_nettype = FAKECHAIN;
     }
     bool r = handle_command_line(vm);
+    CHECK_AND_ASSERT_MES(r, false, "Failed to handle command line");
 
     std::string db_type = command_line::get_arg(vm, cryptonote::arg_db_type);
     std::string db_sync_mode = command_line::get_arg(vm, cryptonote::arg_db_sync_mode);
@@ -634,6 +635,7 @@ namespace cryptonote
     };
     const difficulty_type fixed_difficulty = command_line::get_arg(vm, arg_fixed_difficulty);
     r = m_blockchain_storage.init(db.release(), m_nettype, m_offline, regtest ? &regtest_test_options : test_options, fixed_difficulty, get_checkpoints);
+    CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage");
 
     r = m_mempool.init(max_txpool_weight);
     CHECK_AND_ASSERT_MES(r, false, "Failed to initialize memory pool");

src/ringct/multiexp.cc

@@ -447,7 +447,6 @@ rct::key straus(const std::vector<MultiexpData> &data, const std::shared_ptr<str
 {
   CHECK_AND_ASSERT_THROW_MES(cache == NULL || cache->size >= data.size(), "Cache is too small");
   MULTIEXP_PERF(PERF_TIMER_UNIT(straus, 1000000));
-  bool HiGi = cache != NULL;
   STEP = STEP ? STEP : 192;
 
   MULTIEXP_PERF(PERF_TIMER_START_UNIT(setup, 1000000));

src/ringct/rctTypes.cpp

@@ -190,7 +190,6 @@ namespace rct {
         int byte, i, j;
         for (j = 0; j < 8; j++) {
             byte = 0;
-            i = 8 * j;
             for (i = 7; i > -1; i--) {
                 byte = byte * 2 + amountb2[8 * j + i];
             }

src/rpc/core_rpc_server.cpp

@@ -1476,7 +1476,7 @@ namespace cryptonote
       ok = ok && getheight_res.status == CORE_RPC_STATUS_OK;
 
       m_should_use_bootstrap_daemon = ok && top_height + 10 < getheight_res.height;
-      MINFO((m_should_use_bootstrap_daemon ? "Using" : "Not using") << " the bootstrap daemon (our height: " << top_height << ", bootstrap daemon's height: " << getheight_res.height << ")");
+      MINFO((m_should_use_bootstrap_daemon ? "Using" : "Not using") << " the bootstrap daemon (our height: " << top_height << ", bootstrap daemon's height: " << (ok ? getheight_res.height : 0) << ")");
     }
     if (!m_should_use_bootstrap_daemon)
       return false;

src/wallet/wallet2.cpp

@@ -7726,7 +7726,6 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
       uint64_t num_found = 0;
 
       // if we have a known ring, use it
-      bool existing_ring_found = false;
       if (td.m_key_image_known && !td.m_key_image_partial)
       {
         std::vector<uint64_t> ring;
@@ -7738,7 +7737,6 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
               std::to_string(ring.size()) + ", it cannot be spent now with ring size " +
               std::to_string(fake_outputs_count + 1) + " as it is smaller: use a higher ring size");
           bool own_found = false;
-          existing_ring_found = true;
           for (const auto &out: ring)
           {
             MINFO("Ring has output " << out);
@@ -7984,7 +7982,6 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
       outs.back().push_back(std::make_tuple(td.m_global_output_index, boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key, mask));
 
       // then pick outs from an existing ring, if any
-      bool existing_ring_found = false;
       if (td.m_key_image_known && !td.m_key_image_partial)
       {
         std::vector<uint64_t> ring;

tests/core_tests/chaingen.cpp

@@ -546,6 +546,7 @@ void block_tracker::global_indices(const cryptonote::transaction *tx, std::vecto
 void block_tracker::get_fake_outs(size_t num_outs, uint64_t amount, uint64_t global_index, uint64_t cur_height, std::vector<get_outs_entry> &outs){
   auto & vct = m_outs[amount];
   const size_t n_outs = vct.size();
+  CHECK_AND_ASSERT_THROW_MES(n_outs > 0, "n_outs is 0");
 
   std::set<size_t> used;
   std::vector<size_t> choices;

tests/core_tests/wallet_tools.cpp

@@ -163,6 +163,7 @@ bool wallet_tools::fill_tx_sources(tools::wallet2 * wallet, std::vector<cryptono
 
 void wallet_tools::gen_tx_src(size_t mixin, uint64_t cur_height, const tools::wallet2::transfer_details & td, cryptonote::tx_source_entry & src, block_tracker &bt)
 {
+  CHECK_AND_ASSERT_THROW_MES(mixin != 0, "mixin is zero");
   src.amount = td.amount();
   src.rct = td.is_rct();
 

tests/unit_tests/test_protocol_pack.cpp

@@ -48,6 +48,7 @@ TEST(protocol_pack, protocol_pack_command)
 
     cryptonote::NOTIFY_RESPONSE_CHAIN_ENTRY::request r2;
     res = epee::serialization::load_t_from_binary(r2, buff);
+    ASSERT_TRUE(res);
     ASSERT_TRUE(r.m_block_ids.size() == i);
     ASSERT_TRUE(r.start_height == 1);
     ASSERT_TRUE(r.total_height == 3);

tests/unit_tests/varint.cpp

@@ -56,7 +56,6 @@ TEST(varint, equal)
     ASSERT_TRUE (bytes > 0 && bytes <= sizeof(buf));
 
     uint64_t idx2;
-    bufptr = buf;
     std::string s(buf, bytes);
     int read = tools::read_varint(s.begin(), s.end(), idx2);
     ASSERT_EQ (read, bytes);