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Disallow extended encoding for non-witness transactions

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Github-Pull: #14039
Rebased-From: bb530efa18
This commit is contained in:
Pieter Wuille 2018-08-23 17:01:14 -07:00 • committed by MarcoFalke
parent 3dbc7def0f
commit 206f5ee875
1 changed files with 4 additions and 0 deletions
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4
src/primitives/transaction.h
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@ -222,6 +222,10 @@ inline void UnserializeTransaction(TxType& tx, Stream& s) {
for (size_t i = 0; i < tx.vin.size(); i++) {
s >> tx.vin[i].scriptWitness.stack;
}
if (!tx.HasWitness()) {
/* It's illegal to encode witnesses when all witness stacks are empty. */
throw std::ios_base::failure("Superfluous witness record");
}
}
if (flags) {
/* Unknown flag in the serialization */