1 //===--- CloexecAccept4Check.cpp - clang-tidy------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "CloexecAccept4Check.h"
11 #include "../utils/ASTUtils.h"
12 #include "clang/AST/ASTContext.h"
13 #include "clang/ASTMatchers/ASTMatchFinder.h"
14 
15 using namespace clang::ast_matchers;
16 
17 namespace clang {
18 namespace tidy {
19 namespace android {
20 
21 void CloexecAccept4Check::registerMatchers(MatchFinder *Finder) {
22   auto SockAddrPointerType =
23       hasType(pointsTo(recordDecl(isStruct(), hasName("sockaddr"))));
24   auto SockLenPointerType = hasType(pointsTo(namedDecl(hasName("socklen_t"))));
25 
26   registerMatchersImpl(Finder,
27                        functionDecl(returns(isInteger()), hasName("accept4"),
28                                     hasParameter(0, hasType(isInteger())),
29                                     hasParameter(1, SockAddrPointerType),
30                                     hasParameter(2, SockLenPointerType),
31                                     hasParameter(3, hasType(isInteger()))));
32 }
33 
34 void CloexecAccept4Check::check(const MatchFinder::MatchResult &Result) {
35   insertMacroFlag(Result, /*MacroFlag=*/"SOCK_CLOEXEC", /*ArgPos=*/3);
36 }
37 
38 } // namespace android
39 } // namespace tidy
40 } // namespace clang
41