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//===--- CloexecAcceptCheck.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 "CloexecAcceptCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace android {
void CloexecAcceptCheck::registerMatchers(MatchFinder *Finder) {
auto SockAddrPointerType =
hasType(pointsTo(recordDecl(isStruct(), hasName("sockaddr"))));
auto SockLenPointerType = hasType(pointsTo(namedDecl(hasName("socklen_t"))));
registerMatchersImpl(Finder,
functionDecl(returns(isInteger()), hasName("accept"),
hasParameter(0, hasType(isInteger())),
hasParameter(1, SockAddrPointerType),
hasParameter(2, SockLenPointerType)));
}
void CloexecAcceptCheck::check(const MatchFinder::MatchResult &Result) {
const std::string &ReplacementText =
(Twine("accept4(") + getSpellingArg(Result, 0) + ", " +
getSpellingArg(Result, 1) + ", " + getSpellingArg(Result, 2) +
", SOCK_CLOEXEC)")
.str();
replaceFunc(
Result,
"prefer accept4() to accept() because accept4() allows SOCK_CLOEXEC",
ReplacementText);
}
} // namespace android
} // namespace tidy
} // namespace clang
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