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testing and fixes for snative CALL and CallTx

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This commit is contained in:
Ethan Buchman
2015-05-21 19:50:48 -04:00
committed by Jae Kwon
parent b233f89dbf
commit 32e02acb0c
3 changed files with 393 additions and 32 deletions
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35
state/execution.go
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@@ -434,30 +434,29 @@ func ExecTx(blockCache *BlockCache, tx_ types.Tx, runCall bool, evc events.Firea
// get or create callee
if !createAccount {
if outAcc == nil {
if outAcc == nil || len(outAcc.Code) == 0 {
// check if its an snative
if _, ok := vm.RegisteredSNativeContracts[LeftPadWord256(tx.Address)]; ok {
// set the outAcc (simply a placeholder until we reach the call)
outAcc = &account.Account{Address: tx.Address}
}
}
if outAcc == nil || len(outAcc.Code) == 0 {
// if you call an account that doesn't exist
// or an account with no code then we take fees (sorry pal)
// NOTE: it's fine to create a contract and call it within one
// block (nonce will prevent re-ordering of those txs)
// but to create with one account and call with another
// you have to wait a block to avoid a re-ordering attack
// that will take your fees
inAcc.Balance -= tx.Fee
blockCache.UpdateAccount(inAcc)
if outAcc == nil {
log.Debug(Fmt("Cannot find destination address %X. Deducting fee from caller", tx.Address))
} else {
log.Debug(Fmt("Attempting to call an account (%X) with no code. Deducting fee from caller", tx.Address))
// if you call an account that doesn't exist
// or an account with no code then we take fees (sorry pal)
// NOTE: it's fine to create a contract and call it within one
// block (nonce will prevent re-ordering of those txs)
// but to create with one account and call with another
// you have to wait a block to avoid a re-ordering attack
// that will take your fees
inAcc.Balance -= tx.Fee
blockCache.UpdateAccount(inAcc)
if outAcc == nil {
log.Debug(Fmt("Cannot find destination address %X. Deducting fee from caller", tx.Address))
} else {
log.Debug(Fmt("Attempting to call an account (%X) with no code. Deducting fee from caller", tx.Address))
}
return types.ErrTxInvalidAddress
}
return types.ErrTxInvalidAddress
}
callee = toVMAccount(outAcc)
code = callee.Code