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Don't create empty transactions when reading corrupted wallet

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The current transaction loading code is not exception safe.
An exception during deserialization causes an empty transaction
to be left behind in the wallet.

Fix this by building the transaction separately and adding
it only to the wallet at the end.

Fixes #3333.
This commit is contained in:
Wladimir J. van der Laan 2013-12-16 17:17:39 +01:00
parent 93a7861d71
commit 16ec9044d1
1 changed files with 2 additions and 4 deletions
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6
src/walletdb.cpp
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@ -357,16 +357,13 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
{
uint256 hash;
ssKey >> hash;
CWalletTx& wtx = pwallet->mapWallet[hash];
CWalletTx wtx;
ssValue >> wtx;
CValidationState state;
if (CheckTransaction(wtx, state) && (wtx.GetHash() == hash) && state.IsValid())
wtx.BindWallet(pwallet);
else
{
pwallet->mapWallet.erase(hash);
return false;
}
// Undo serialize changes in 31600
if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
@ -391,6 +388,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
if (wtx.nOrderPos == -1)
wss.fAnyUnordered = true;
pwallet->mapWallet[hash] = wtx;
//// debug print
//LogPrintf("LoadWallet %s\n", wtx.GetHash().ToString().c_str());
//LogPrintf(" %12"PRId64" %s %s %s\n",