| //===--- CloexecOpenCheck.cpp - clang-tidy---------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CloexecOpenCheck.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace tidy { |
| namespace android { |
| |
| void CloexecOpenCheck::registerMatchers(MatchFinder *Finder) { |
| auto CharPointerType = hasType(pointerType(pointee(isAnyCharacter()))); |
| registerMatchersImpl(Finder, |
| functionDecl(isExternC(), returns(isInteger()), |
| hasAnyName("open", "open64"), |
| hasParameter(0, CharPointerType), |
| hasParameter(1, hasType(isInteger())))); |
| registerMatchersImpl(Finder, |
| functionDecl(isExternC(), returns(isInteger()), |
| hasName("openat"), |
| hasParameter(0, hasType(isInteger())), |
| hasParameter(1, CharPointerType), |
| hasParameter(2, hasType(isInteger())))); |
| } |
| |
| void CloexecOpenCheck::check(const MatchFinder::MatchResult &Result) { |
| const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>(FuncDeclBindingStr); |
| assert(FD->param_size() > 1); |
| int ArgPos = (FD->param_size() > 2) ? 2 : 1; |
| insertMacroFlag(Result, /*MacroFlag=*/"O_CLOEXEC", ArgPos); |
| } |
| |
| } // namespace android |
| } // namespace tidy |
| } // namespace clang |