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add empty container sanity checks when using front() and back()

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moneromooo-monero 2017-12-11 22:36:58 +00:00
parent 56fa6ce15f
commit 45a1c4c088
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9 changed files with 32 additions and 6 deletions
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6
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -1003,6 +1003,11 @@ skip:
MDEBUG(context << " next span in the queue has blocks " << start_height << "-" << (start_height + blocks.size() - 1)
<< ", we need " << previous_height);
if (blocks.empty())
{
MERROR("Next span has no blocks");
break;
}
block new_block;
if (!parse_and_validate_block_from_blob(blocks.front().block, new_block))
@ -1498,6 +1503,7 @@ skip:
NOTIFY_REQUEST_CHAIN::request r = boost::value_initialized<NOTIFY_REQUEST_CHAIN::request>();
m_core.get_short_chain_history(r.block_ids);
CHECK_AND_ASSERT_MES(!r.block_ids.empty(), false, "Short chain history is empty");
if (!start_from_current_chain)
{