clang-tools 6.0.0

CloexecAcceptCheck.cpp
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1 //===--- CloexecAcceptCheck.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 "CloexecAcceptCheck.h"
11 #include "clang/AST/ASTContext.h"
12 #include "clang/ASTMatchers/ASTMatchFinder.h"
13
14 using namespace clang::ast_matchers;
15
16 namespace clang {
17 namespace tidy {
18 namespace android {
19
20 void CloexecAcceptCheck::registerMatchers(MatchFinder *Finder) {
21 auto SockAddrPointerType =
22 hasType(pointsTo(recordDecl(isStruct(), hasName("sockaddr"))));
23 auto SockLenPointerType = hasType(pointsTo(namedDecl(hasName("socklen_t"))));
24
25 registerMatchersImpl(Finder,
26 functionDecl(returns(isInteger()), hasName("accept"),
27 hasParameter(0, hasType(isInteger())),
28 hasParameter(1, SockAddrPointerType),
29 hasParameter(2, SockLenPointerType)));
30 }
31
32 void CloexecAcceptCheck::check(const MatchFinder::MatchResult &Result) {
33 const std::string &ReplacementText =
34 (Twine("accept4(") + getSpellingArg(Result, 0) + ", " +
35 getSpellingArg(Result, 1) + ", " + getSpellingArg(Result, 2) +
36 ", SOCK_CLOEXEC)")
37 .str();
38
39 replaceFunc(
40 Result,
41 "prefer accept4() to accept() because accept4() allows SOCK_CLOEXEC",
42 ReplacementText);
43 }
44
45 } // namespace android
46 } // namespace tidy
47 } // namespace clang
clang::ast_matchers
Definition: ClangTidyDiagnosticConsumer.h:27
CloexecAcceptCheck.h
clang
Definition: AndroidTidyModule.cpp:28