| 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 | |
| 13 | using namespace clang::ast_matchers; |
| 14 | |
| 15 | namespace clang::tidy::android { |
| 16 | |
| 17 | void CloexecPipeCheck::registerMatchers(MatchFinder *Finder) { |
| 18 | registerMatchersImpl(Finder, |
| 19 | Function: functionDecl(returns(InnerMatcher: isInteger()), hasName(Name: "pipe"), |
| 20 | hasParameter(N: 0, InnerMatcher: hasType(InnerMatcher: pointsTo(InnerMatcher: isInteger()))))); |
| 21 | } |
| 22 | |
| 23 | void CloexecPipeCheck::check(const MatchFinder::MatchResult &Result) { |
| 24 | std::string ReplacementText = |
| 25 | (Twine("pipe2(") + getSpellingArg(Result, N: 0) + ", O_CLOEXEC)").str(); |
| 26 | |
| 27 | replaceFunc( |
| 28 | Result, |
| 29 | WarningMsg: "prefer pipe2() with O_CLOEXEC to avoid leaking file descriptors to child processes", |
| 30 | FixMsg: ReplacementText); |
| 31 | } |
| 32 | |
| 33 | } // namespace clang::tidy::android |
| 34 |