| 1 | //===--- CloexecOpenCheck.cpp - clang-tidy---------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "CloexecOpenCheck.h" |
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| 10 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
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| 11 | |
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| 12 | using namespace clang::ast_matchers; |
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| 13 | |
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| 14 | namespace clang::tidy::android { |
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| 15 | |
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| 16 | void CloexecOpenCheck::registerMatchers(MatchFinder *Finder) { |
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| 17 | auto CharPointerType = hasType(InnerMatcher: pointerType(pointee(isAnyCharacter()))); |
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| 18 | registerMatchersImpl(Finder, |
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| 19 | Function: functionDecl(isExternC(), returns(InnerMatcher: isInteger()), |
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| 20 | hasAnyName("open" , "open64" ), |
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| 21 | hasParameter(N: 0, InnerMatcher: CharPointerType), |
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| 22 | hasParameter(N: 1, InnerMatcher: hasType(InnerMatcher: isInteger())))); |
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| 23 | registerMatchersImpl( |
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| 24 | Finder, Function: functionDecl(isExternC(), returns(InnerMatcher: isInteger()), hasName(Name: "openat" ), |
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| 25 | hasParameter(N: 0, InnerMatcher: hasType(InnerMatcher: isInteger())), |
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| 26 | hasParameter(N: 1, InnerMatcher: CharPointerType), |
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| 27 | hasParameter(N: 2, InnerMatcher: hasType(InnerMatcher: isInteger())))); |
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| 28 | } |
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| 29 | |
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| 30 | void CloexecOpenCheck::check(const MatchFinder::MatchResult &Result) { |
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| 31 | const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>(ID: FuncDeclBindingStr); |
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| 32 | assert(FD->param_size() > 1); |
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| 33 | int ArgPos = (FD->param_size() > 2) ? 2 : 1; |
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| 34 | insertMacroFlag(Result, /*MacroFlag=*/"O_CLOEXEC" , ArgPos); |
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| 35 | } |
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| 36 | |
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| 37 | } // namespace clang::tidy::android |
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| 38 | |
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