[PATCH] D54780: [llvm-demangle-fuzzer] Also fuzz microsoftDemangle().
Matt Morehouse via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Nov 20 18:57:29 PST 2018
morehouse updated this revision to Diff 174863.
morehouse added a comment.
- Formatting.
https://reviews.llvm.org/D54780
Files:
llvm/tools/llvm-demangle-fuzzer/llvm-demangle-fuzzer.cpp
Index: llvm/tools/llvm-demangle-fuzzer/llvm-demangle-fuzzer.cpp
===================================================================
--- llvm/tools/llvm-demangle-fuzzer/llvm-demangle-fuzzer.cpp
+++ llvm/tools/llvm-demangle-fuzzer/llvm-demangle-fuzzer.cpp
@@ -14,11 +14,19 @@
#include <string>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
- std::string NullTerminatedString((const char *)Data, Size);
- int status = 0;
- if (char *demangle = llvm::itaniumDemangle(NullTerminatedString.c_str(), nullptr,
- nullptr, &status))
- free(demangle);
+ if (Size == 0)
+ return 0;
+
+ std::string NullTerminatedString((const char *)&Data[1], Size - 1);
+ int Status = 0;
+ char *Demangle = nullptr;
+ if (Data[0] < 128)
+ Demangle = llvm::itaniumDemangle(NullTerminatedString.c_str(), nullptr,
+ nullptr, &Status);
+ else
+ Demangle = llvm::microsoftDemangle(NullTerminatedString.c_str(), nullptr,
+ nullptr, &Status);
+ free(Demangle);
return 0;
}
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