clang-tidy/android/CloexecOpenCheck.h

0001 //===--- CloexecOpenCheck.h - clang-tidy-----------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H
0010 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H
0011
0012 #include "CloexecCheck.h"
0013
0014 namespace clang::tidy::android {
0015
0016 /// Finds code that opens file without using the O_CLOEXEC flag.
0017 ///
0018 /// open(), openat(), and open64() had better to include O_CLOEXEC in their
0019 /// flags argument. Only consider simple cases that the corresponding argument
0020 /// is constant or binary operation OR among constants like 'O_CLOEXEC' or
0021 /// 'O_CLOEXEC | O_RDONLY'. No constant propagation is performed.
0022 ///
0023 /// Only the symbolic 'O_CLOEXEC' macro definition is checked, not the concrete
0024 /// value.
0025 class CloexecOpenCheck : public CloexecCheck {
0026 public:
0027   CloexecOpenCheck(StringRef Name, ClangTidyContext *Context)
0028       : CloexecCheck(Name, Context) {}
0029   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
0030   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
0031 };
0032
0033 } // namespace clang::tidy::android
0034
0035 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H