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wallet2: don't store 0 amount outputs, they'll fail to be spent

It's better to just ignore them, the user does not really need
to know they're here. If the mask is wrong, they'll fail to be
used, and sweeping will fail as it tries to use it.

Reported by Josh Davis.
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moneromooo-monero committed Mar 8, 2019
1 parent 1d1a02e commit bc61b5ca951c2cf7331e56746c46fd5a17cc57b4
Showing with 7 additions and 1 deletion.
  1. +7 −1 src/wallet/wallet2.cpp
@@ -1495,11 +1495,17 @@ void wallet2::scan_output(const cryptonote::transaction &tx, bool miner_tx, cons

THROW_WALLET_EXCEPTION_IF(std::find(outs.begin(), outs.end(), i) != outs.end(), error::wallet_internal_error, "Same output cannot be added twice");
if (tx_scan_info.money_transfered == 0 && !miner_tx)
tx_scan_info.money_transfered = tools::decodeRct(tx.rct_signatures, tx_scan_info.received->derivation, i, tx_scan_info.mask, m_account.get_device());
if (tx_scan_info.money_transfered == 0)
MERROR("Invalid output amount, skipping");
tx_scan_info.error = true;
THROW_WALLET_EXCEPTION_IF(tx_money_got_in_outs[tx_scan_info.received->index] >= std::numeric_limits<uint64_t>::max() - tx_scan_info.money_transfered,
error::wallet_internal_error, "Overflow in received amounts");
tx_money_got_in_outs[tx_scan_info.received->index] += tx_scan_info.money_transfered;

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