63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
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//== TaintTesterChecker.cpp ----------------------------------- -*- C++ -*--=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This checker can be used for testing how taint data is propagated.
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//
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//===----------------------------------------------------------------------===//
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#include "ClangSACheckers.h"
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#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
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#include "clang/StaticAnalyzer/Core/Checker.h"
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#include "clang/StaticAnalyzer/Core/CheckerManager.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
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using namespace clang;
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using namespace ento;
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namespace {
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class TaintTesterChecker : public Checker< check::PostStmt<Expr> > {
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mutable OwningPtr<BugType> BT;
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void initBugType() const;
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/// Given a pointer argument, get the symbol of the value it contains
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/// (points to).
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SymbolRef getPointedToSymbol(CheckerContext &C,
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const Expr* Arg,
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bool IssueWarning = true) const;
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public:
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void checkPostStmt(const Expr *E, CheckerContext &C) const;
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};
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}
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inline void TaintTesterChecker::initBugType() const {
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if (!BT)
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BT.reset(new BugType("Tainted data", "General"));
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}
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void TaintTesterChecker::checkPostStmt(const Expr *E,
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CheckerContext &C) const {
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ProgramStateRef State = C.getState();
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if (!State)
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return;
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if (State->isTainted(E, C.getLocationContext())) {
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if (ExplodedNode *N = C.addTransition()) {
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initBugType();
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BugReport *report = new BugReport(*BT, "tainted",N);
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report->addRange(E->getSourceRange());
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C.emitReport(report);
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}
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}
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}
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void ento::registerTaintTesterChecker(CheckerManager &mgr) {
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mgr.registerChecker<TaintTesterChecker>();
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}
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