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//===--- UnsafeFunctionsCheck.h - clang-tidy --------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNSAFEFUNCTIONSCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNSAFEFUNCTIONSCHECK_H
#include "../ClangTidyCheck.h"
#include "../utils/Matchers.h"
#include <optional>
namespace clang::tidy::bugprone {
/// Checks for functions that have safer, more secure replacements available, or
/// are considered deprecated due to design flaws. This check relies heavily on,
/// but is not exclusive to, the functions from the
/// Annex K. "Bounds-checking interfaces" of C11.
///
/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/unsafe-functions.html
class UnsafeFunctionsCheck : public ClangTidyCheck {
public:
UnsafeFunctionsCheck(StringRef Name, ClangTidyContext *Context);
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
Preprocessor *ModuleExpanderPP) override;
void onEndOfTranslationUnit() override;
struct CheckedFunction {
std::string Name;
matchers::MatchesAnyListedNameMatcher::NameMatcher Pattern;
std::string Replacement;
std::string Reason;
};
private:
const std::vector<CheckedFunction> CustomFunctions;
/// If true, the default set of functions are reported.
const bool ReportDefaultFunctions;
/// If true, additional functions from widely used API-s (such as POSIX) are
/// added to the list of reported functions.
const bool ReportMoreUnsafeFunctions;
Preprocessor *PP = nullptr;
/// Whether "Annex K" functions are available and should be
/// suggested in diagnostics. This is filled and cached internally.
std::optional<bool> IsAnnexKAvailable;
};
} // namespace clang::tidy::bugprone
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_UNSAFEFUNCTIONSCHECK_H
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