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//===--- CloexecPipeCheck.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 "CloexecPipeCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace android {
void CloexecPipeCheck::registerMatchers(MatchFinder *Finder) {
registerMatchersImpl(Finder,
functionDecl(returns(isInteger()), hasName("pipe"),
hasParameter(0, hasType(pointsTo(isInteger())))));
}
void CloexecPipeCheck::check(const MatchFinder::MatchResult &Result) {
std::string ReplacementText =
(Twine("pipe2(") + getSpellingArg(Result, 0) + ", O_CLOEXEC)").str();
replaceFunc(
Result,
"prefer pipe2() with O_CLOEXEC to avoid leaking file descriptors to child processes",
ReplacementText);
}
} // namespace android
} // namespace tidy
} // namespace clang
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