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fix checkinputs.

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This commit is contained in:
Christopher Jeffrey 2016-02-28 23:11:18 -08:00
parent 2677b0eecd
commit 58d2f66a70
1 changed files with 17 additions and 20 deletions
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37
lib/bcoin/chain.js
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@ -668,6 +668,23 @@ Chain.prototype._checkInputs = function _checkInputs(block, prev, flags, callbac
tx = block.txs[i];
hash = tx.hash('hex');
// Check for block sigops limits
// Start counting P2SH sigops once block
// timestamps reach March 31st, 2012.
if (block.ts >= constants.block.bip16time)
sigops += tx.getSigops(true);
else
sigops += tx.getSigops();
if (sigops > constants.script.maxBlockSigops) {
utils.debug('Block has too many sigops: %s', block.rhash);
return callback(null, false);
}
// Coinbases do not have prevouts
if (tx.isCoinbase())
continue;
if (tx.getOutputValue().cmp(tx.getInputValue()) > 0) {
utils.debug('TX is spending funds it does not have: %s', tx.rhash);
return false;
@ -676,10 +693,6 @@ Chain.prototype._checkInputs = function _checkInputs(block, prev, flags, callbac
for (j = 0; j < tx.inputs.length; j++) {
input = tx.inputs[j];
// Coinbases do not have prevouts
if (tx.isCoinbase())
continue;
// Ensure tx is not double spending an output
if (!input.output) {
utils.debug('Block is using spent inputs: %s (tx: %s, output: %s)',
@ -711,22 +724,6 @@ Chain.prototype._checkInputs = function _checkInputs(block, prev, flags, callbac
return callback(null, false);
}
}
if (!scriptCheck)
continue;
// Check for block sigops limits
// Start counting P2SH sigops once block
// timestamps reach March 31st, 2012.
if (block.ts >= constants.block.bip16time)
sigops += tx.getSigops(true);
else
sigops += tx.getSigops();
if (sigops > constants.script.maxBlockSigops) {
utils.debug('Block has too many sigops: %s', block.rhash);
return callback(null, false);
}
}
return callback(null, true);