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Merge pull request #1689 from gavinandresen/rawtx_singlefix

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When using SIGHASH_SINGLE, only sign inputs that have corresponding outputs
This commit is contained in:
Gregory Maxwell 2012-08-20 12:59:50 -07:00
commit b86da2abe8
1 changed files with 5 additions and 1 deletions
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4
src/rpcrawtransaction.cpp
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@ -428,6 +428,8 @@ Value signrawtransaction(const Array& params, bool fHelp)
throw JSONRPCError(-8, "Invalid sighash param"); throw JSONRPCError(-8, "Invalid sighash param");
} }
bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);
// Sign what we can: // Sign what we can:
for (unsigned int i = 0; i < mergedTx.vin.size(); i++) for (unsigned int i = 0; i < mergedTx.vin.size(); i++)
{ {
@ -440,6 +442,8 @@ Value signrawtransaction(const Array& params, bool fHelp)
const CScript& prevPubKey = mapPrevOut[txin.prevout]; const CScript& prevPubKey = mapPrevOut[txin.prevout];
txin.scriptSig.clear(); txin.scriptSig.clear();
// Only sign SIGHASH_SINGLE if there's a corresponding output:
if (!fHashSingle || (i < mergedTx.vout.size()))
SignSignature(keystore, prevPubKey, mergedTx, i, nHashType); SignSignature(keystore, prevPubKey, mergedTx, i, nHashType);
// ... and merge in other signatures: // ... and merge in other signatures: