[clang-tidy] Add a close-on-exec check on dup() in Android module.

Summary:
dup() is better to be replaced by fcntl() to avoid file descriptor leakage.

Differential Revision: https://reviews.llvm.org/D35364

llvm-svn: 310858

1 files changed, 9 insertions, 0 deletions

diff --git a/clang-tools-extra/clang-tidy/android/CloexecCheck.cpp b/clang-tools-extra/clang-tidy/android/CloexecCheck.cpp
index 9cf823a48ad..38afa137059 100644
--- a/clang-tools-extra/clang-tidy/android/CloexecCheck.cpp
+++ b/clang-tools-extra/clang-tidy/android/CloexecCheck.cpp
@@ -100,6 +100,15 @@ void CloexecCheck::insertStringFlag(
                                       ReplacementText);
 }
 
+StringRef CloexecCheck::getSpellingArg(const MatchFinder::MatchResult &Result,
+                                       int N) const {
+  const auto *MatchedCall = Result.Nodes.getNodeAs<CallExpr>(FuncBindingStr);
+  const SourceManager &SM = *Result.SourceManager;
+  return Lexer::getSourceText(
+      CharSourceRange::getTokenRange(MatchedCall->getArg(N)->getSourceRange()),
+      SM, Result.Context->getLangOpts());
+}
+
 } // namespace android
 } // namespace tidy
 } // namespace clang