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Missing validity check.

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This commit is contained in:
JoelKatz
2013-03-12 09:48:35 -07:00
parent 80233579f1
commit 1d4cb0c943
1 changed files with 16 additions and 2 deletions
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18
src/cpp/ripple/Ledger.cpp
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@@ -1307,20 +1307,34 @@ bool Ledger::isValidBook(const uint160& uTakerPaysCurrency, const uint160& uTake
{
if (uTakerPaysCurrency.isZero())
{ // XRP in
if (uTakerPaysIssuerID.isNonZero()) // XRP cannot have an issuer
return false;
if (uTakerGetsCurrency.isZero()) // XRP to XRP not allowed
return false;
if (uTakerGetsIssuerID.isZero()) // non-XRP must have issuer
return false;
return true;
}
// non-XRP in
if (uTakerPaysIssuerID.isZero()) // non-XRP must have issuer
return false;
if (uTakerGetsCurrency.isZero() != uTakerGetsIssuerID.isZero())
return false; // XRP must have issuer, non-XRP must not
if (uTakerGetsCurrency.isZero()) // non-XRP to XRP
{
if (uTakerGetsIssuerID.isNonZero()) // XRP cannot have issuer
return false;
}
else // non-XRP to non-XRP
{
if ((uTakerPaysCurrency == uTakerGetsCurrency) && (uTakerGetsIssuerID == uTakerGetsIssuerID))
return false; // Input and output cannot be identical
}
return true;
}