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| author | Anna Zaks <ganna@apple.com> | 2013-04-10 22:06:29 +0000 |
|---|---|---|
| committer | Anna Zaks <ganna@apple.com> | 2013-04-10 22:06:29 +0000 |
| commit | 60d98befe8dc292148d7afaf4a996794096f11a3 (patch) | |
| tree | 51984cdd69733c5bebbaef0e923d9688abcb4148 /clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp | |
| parent | 95081bff72741a490e1e8e421eda9867f2c7af17 (diff) | |
| download | bcm5719-llvm-60d98befe8dc292148d7afaf4a996794096f11a3.tar.gz bcm5719-llvm-60d98befe8dc292148d7afaf4a996794096f11a3.zip | |
[analyzer] Fix a crash in SyntaxCString checker when given a custom strncat.
Fixes PR13476
llvm-svn: 179228
Diffstat (limited to 'clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp')
| -rw-r--r-- | clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp index 3a57a56aea6..92c0eef3e88 100644 --- a/clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp +++ b/clang/lib/StaticAnalyzer/Checkers/CStringSyntaxChecker.cpp @@ -101,6 +101,8 @@ public: // - strncat(dst, src, sizeof(dst) - 1); // - strncat(dst, src, sizeof(dst)); bool WalkAST::containsBadStrncatPattern(const CallExpr *CE) { + if (CE->getNumArgs() != 3) + return false; const Expr *DstArg = CE->getArg(0); const Expr *SrcArg = CE->getArg(1); const Expr *LenArg = CE->getArg(2); |
