Make sure transactions have non-empty outputs
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@ -1039,12 +1039,14 @@ bool CheckTransactionWithoutProofVerification(const CTransaction& tx, CValidatio
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}
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}
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// Transactions can contain empty `vin` and `vout` so long as
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// either `vjoinsplit` or `vShieldedSpend` are non-empty.
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// Transactions containing empty `vin` must have either non-empty
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// `vjoinsplit` or non-empty `vShieldedSpend`.
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if (tx.vin.empty() && tx.vjoinsplit.empty() && tx.vShieldedSpend.empty())
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return state.DoS(10, error("CheckTransaction(): vin empty"),
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REJECT_INVALID, "bad-txns-vin-empty");
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if (tx.vout.empty() && tx.vjoinsplit.empty() && tx.vShieldedSpend.empty())
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// Transactions containing empty `vout` must have either non-empty
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// `vjoinsplit` or non-empty `vShieldedOutput`.
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if (tx.vout.empty() && tx.vjoinsplit.empty() && tx.vShieldedOutput.empty())
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return state.DoS(10, error("CheckTransaction(): vout empty"),
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REJECT_INVALID, "bad-txns-vout-empty");
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@ -408,6 +408,16 @@ void test_simple_sapling_invalidity(uint32_t consensusBranchId, CMutableTransact
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BOOST_CHECK(!CheckTransactionWithoutProofVerification(newTx, state));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vin-empty");
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}
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{
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CMutableTransaction newTx(tx);
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CValidationState state;
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newTx.vShieldedSpend.push_back(SpendDescription());
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newTx.vShieldedSpend[0].nullifier = GetRandHash();
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BOOST_CHECK(!CheckTransactionWithoutProofVerification(newTx, state));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vout-empty");
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}
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{
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// Ensure that nullifiers are never duplicated within a transaction.
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CMutableTransaction newTx(tx);
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@ -415,6 +425,9 @@ void test_simple_sapling_invalidity(uint32_t consensusBranchId, CMutableTransact
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newTx.vShieldedSpend.push_back(SpendDescription());
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newTx.vShieldedSpend[0].nullifier = GetRandHash();
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newTx.vShieldedOutput.push_back(OutputDescription());
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newTx.vShieldedSpend.push_back(SpendDescription());
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newTx.vShieldedSpend[1].nullifier = newTx.vShieldedSpend[0].nullifier;
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