forked from OSchip/llvm-project
68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
//===--- NotNullTerminatedResultCheck.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_NOT_NULL_TERMINATED_RESULT_H
|
|
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_NOT_NULL_TERMINATED_RESULT_H
|
|
|
|
#include "../ClangTidy.h"
|
|
|
|
namespace clang {
|
|
namespace tidy {
|
|
namespace bugprone {
|
|
|
|
/// Finds function calls where it is possible to cause a not null-terminated
|
|
/// result. Usually the proper length of a string is 'strlen(src) + 1' or
|
|
/// equal length of this expression, because the null terminator needs an extra
|
|
/// space. Without the null terminator it can result in undefined behaviour
|
|
/// when the string is read.
|
|
///
|
|
/// For the user-facing documentation see:
|
|
/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone-not-null-terminated-result.html
|
|
class NotNullTerminatedResultCheck : public ClangTidyCheck {
|
|
public:
|
|
NotNullTerminatedResultCheck(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;
|
|
|
|
private:
|
|
// If non-zero it is specifying if the target environment is considered to
|
|
// implement '_s' suffixed memory and string handler functions which are safer
|
|
// than older version (e.g. 'memcpy_s()'). The default value is '1'.
|
|
const bool WantToUseSafeFunctions;
|
|
|
|
bool UseSafeFunctions = false;
|
|
|
|
void memoryHandlerFunctionFix(
|
|
StringRef Name, const ast_matchers::MatchFinder::MatchResult &Result);
|
|
void memcpyFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result,
|
|
DiagnosticBuilder &Diag);
|
|
void memcpy_sFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result,
|
|
DiagnosticBuilder &Diag);
|
|
void memchrFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result);
|
|
void memmoveFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result,
|
|
DiagnosticBuilder &Diag);
|
|
void strerror_sFix(const ast_matchers::MatchFinder::MatchResult &Result);
|
|
void ncmpFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result);
|
|
void xfrmFix(StringRef Name,
|
|
const ast_matchers::MatchFinder::MatchResult &Result);
|
|
};
|
|
|
|
} // namespace bugprone
|
|
} // namespace tidy
|
|
} // namespace clang
|
|
|
|
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_NOT_NULL_TERMINATED_RESULT_H
|