clang-tools 17.0.0git
CloexecPipeCheck.cpp
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1//===--- CloexecPipeCheck.cpp - 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#include "CloexecPipeCheck.h"
10#include "clang/AST/ASTContext.h"
11#include "clang/ASTMatchers/ASTMatchFinder.h"
12
13using namespace clang::ast_matchers;
14
15namespace clang::tidy::android {
16
17void CloexecPipeCheck::registerMatchers(MatchFinder *Finder) {
19 functionDecl(returns(isInteger()), hasName("pipe"),
20 hasParameter(0, hasType(pointsTo(isInteger())))));
21}
22
23void CloexecPipeCheck::check(const MatchFinder::MatchResult &Result) {
24 std::string ReplacementText =
25 (Twine("pipe2(") + getSpellingArg(Result, 0) + ", O_CLOEXEC)").str();
26
28 Result,
29 "prefer pipe2() with O_CLOEXEC to avoid leaking file descriptors to child processes",
30 ReplacementText);
31}
32
33} // namespace clang::tidy::android
void replaceFunc(const ast_matchers::MatchFinder::MatchResult &Result, StringRef WarningMsg, StringRef FixMsg)
Type2 is to replace the API to another function that has required the ability.
void registerMatchersImpl(ast_matchers::MatchFinder *Finder, ast_matchers::internal::Matcher< FunctionDecl > Function)
StringRef getSpellingArg(const ast_matchers::MatchFinder::MatchResult &Result, int N) const
Helper function to get the spelling of a particular argument.
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.