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Calculate and store the number of bytes required to spend an input

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This commit is contained in:
Andrew Chow
2018-03-05 16:37:24 -05:00
parent a34ac6ae07
commit 12ec29d3bb
8 changed files with 127 additions and 68 deletions
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9
src/script/sign.cpp
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@@ -194,11 +194,16 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
return data;
}
void UpdateInput(CTxIn& input, const SignatureData& data)
{
input.scriptSig = data.scriptSig;
input.scriptWitness = data.scriptWitness;
}
void UpdateTransaction(CMutableTransaction& tx, unsigned int nIn, const SignatureData& data)
{
assert(tx.vin.size() > nIn);
tx.vin[nIn].scriptSig = data.scriptSig;
tx.vin[nIn].scriptWitness = data.scriptWitness;
UpdateInput(tx.vin[nIn], data);
}
bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType)

1
src/script/sign.h
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@@ -80,6 +80,7 @@ SignatureData CombineSignatures(const CScript& scriptPubKey, const BaseSignature
/** Extract signature data from a transaction, and insert it. */
SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn);
void UpdateTransaction(CMutableTransaction& tx, unsigned int nIn, const SignatureData& data);
void UpdateInput(CTxIn& input, const SignatureData& data);
/* Check whether we know how to sign for an output like this, assuming we
* have all private keys. While this function does not need private keys, the passed