clang-tools-extra/clang-tidy/android/CloexecOpenCheck.h

   1 //===--- CloexecOpenCheck.h - clang-tidy-----------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H
  11
  12 #include "CloexecCheck.h"
  13
  14 namespace clang::tidy::android {
  15
  16 /// Finds code that opens file without using the O_CLOEXEC flag.
  17 ///
  18 /// open(), openat(), and open64() had better to include O_CLOEXEC in their
  19 /// flags argument. Only consider simple cases that the corresponding argument
  20 /// is constant or binary operation OR among constants like 'O_CLOEXEC' or
  21 /// 'O_CLOEXEC | O_RDONLY'. No constant propagation is performed.
  22 ///
  23 /// Only the symbolic 'O_CLOEXEC' macro definition is checked, not the concrete
  24 /// value.
  25 class CloexecOpenCheck : public CloexecCheck {
  26 public:
  27   CloexecOpenCheck(StringRef Name, ClangTidyContext *Context)
  28       : CloexecCheck(Name, Context) {}
  29   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  30   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  31 };
  32
  33 } // namespace clang::tidy::android
  34
  35 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ANDROID_CLOEXEC_OPEN_H