static bool isLeaked(SymbolRef Sym, const StreamState &SS,
bool IsSymDead, ProgramStateRef State) {
if (IsSymDead && SS.isOpened()) {
// If a symbol is NULL, assume that fopen failed on this path.
// A symbol should only be considered leaked if it is non-null.
ConstraintManager &CMgr = State->getConstraintManager();
ConditionTruthVal OpenFailed = CMgr.isNull(State, Sym);
return !OpenFailed.isConstrainedTrue();
}
return false;
}
void StreamChecker::checkEndPath(CheckerContext &Ctx) const {
const ProgramState *state = Ctx.getState();
typedef llvm::ImmutableMap<SymbolRef, StreamState> SymMap;
SymMap M = state->get<StreamState>();
for (SymMap::iterator I = M.begin(), E = M.end(); I != E; ++I) {
StreamState SS = I->second;
if (SS.isOpened()) {
ExplodedNode *N = Ctx.addTransition(state);
if (N) {
if (!BT_ResourceLeak)
BT_ResourceLeak.reset(new BuiltinBug("Resource Leak",
"Opened File never closed. Potential Resource leak."));
BugReport *R = new BugReport(*BT_ResourceLeak,
BT_ResourceLeak->getDescription(), N);
Ctx.EmitReport(R);
}
}
}
}
void StreamChecker::checkEndPath(EndOfFunctionNodeBuilder &B,
ExprEngine &Eng) const {
const GRState *state = B.getState();
typedef llvm::ImmutableMap<SymbolRef, StreamState> SymMap;
SymMap M = state->get<StreamState>();
for (SymMap::iterator I = M.begin(), E = M.end(); I != E; ++I) {
StreamState SS = I->second;
if (SS.isOpened()) {
ExplodedNode *N = B.generateNode(state);
if (N) {
if (!BT_ResourceLeak)
BT_ResourceLeak.reset(new BuiltinBug("Resource Leak",
"Opened File never closed. Potential Resource leak."));
BugReport *R = new BugReport(*BT_ResourceLeak,
BT_ResourceLeak->getDescription(), N);
Eng.getBugReporter().EmitReport(R);
}
}
}
}
