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Merge c033c4b5ce into merged_master (Bitcoin PR #13541)

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Andrew Poelstra 2020-10-28 00:08:25 +00:00
commit 7d93f137a0
15 changed files with 158 additions and 88 deletions
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20
src/validation.cpp
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@ -3356,6 +3356,26 @@ static int GetWitnessCommitmentIndex(const CBlock& block)
return commitpos;
}
// Compute at which vout of the block's coinbase transaction the signet
// signature occurs, or -1 if not found.
static int GetSignetSignatureIndex(const CBlock& block)
{
if (!block.vtx.empty()) {
for (size_t o = 0; o < block.vtx[0]->vout.size(); o++) {
if (block.vtx[0]->vout[o].scriptPubKey.size() >= 68 // at minimum 64 byte signature plus script/header data
&& block.vtx[0]->vout[o].scriptPubKey[0] == OP_RETURN // unspendable
&& block.vtx[0]->vout[o].scriptPubKey[1] == block.vtx[0]->vout[o].scriptPubKey.size() - 1 // push the rest
&& block.vtx[0]->vout[o].scriptPubKey[2] == 0xec // 's' ^ 0x9f
&& block.vtx[0]->vout[o].scriptPubKey[3] == 0xc7 // 'i' ^ 0xae
&& block.vtx[0]->vout[o].scriptPubKey[4] == 0xda // 'g' ^ 0xbd
&& block.vtx[0]->vout[o].scriptPubKey[5] == 0xa2) { // 'n' ^ 0xcc
return (int)o;
}
}
}
return -1;
}
void UpdateUncommittedBlockStructures(CBlock& block, const CBlockIndex* pindexPrev, const Consensus::Params& consensusParams)
{
int commitpos = GetWitnessCommitmentIndex(block);