Correctly handle one-element paths. Don't call setCanonical, it's broken.

src/cpp/ripple/Pathfinder.cpp

@@ -72,7 +72,7 @@ static bool bQualityCmp(const path_LQ_t& a, const path_LQ_t&b)
 // A path is a default path if it is implied via src, dst, send, and sendmax.
 bool Pathfinder::bDefaultPath(const STPath& spPath)
 {
-	if (2 == spPath.mPath.size()) {
+	if (2 >= spPath.mPath.size()) {
 		// Empty path is a default. Don't need to add it to return set.
 		cLog(lsTRACE) << "findPaths: empty path: direct";
 

src/cpp/ripple/RPCHandler.cpp

@@ -1330,7 +1330,7 @@ Json::Value RPCHandler::doRipplePathFind(Json::Value jvRequest, int& cost)
 
 					// Reuse the expanded as it would need to be calcuated anyway to produce the canonical.
 					// (At least unless we make a direct canonical.)
-					RippleCalc::setCanonical(spsCanonical, vpsExpanded, false);
+					// RippleCalc::setCanonical(spsCanonical, vpsExpanded, false);
 
 					jvEntry["source_amount"]	= saMaxAmountAct.getJson(0);
 //					jvEntry["paths_expanded"]	= vpsExpanded.getJson(0);

src/cpp/ripple/RippleCalc.cpp

@@ -559,6 +559,7 @@ void PathState::setCanonical(
 	const PathState&	psExpanded
 	)
 {
+	assert(false);
 	saInAct		= psExpanded.saInAct;
 	saOutAct	= psExpanded.saOutAct;
 
@@ -572,7 +573,7 @@ void PathState::setCanonical(
 
 	unsigned int	uEnd		= psExpanded.vpnNodes.size();	// The node, indexed by 0, not to include.
 
-	uint160			uDstAccountID	= psExpanded.vpnNodes[uEnd].uAccountID;
+	uint160			uDstAccountID	= psExpanded.vpnNodes[uEnd].uAccountID; // FIXME: This can't be right
 
 	uint160			uAccountID		= psExpanded.vpnNodes[0].uAccountID;
 	uint160			uCurrencyID		= uMaxCurrencyID;