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//===--- DummyFuzzerMain.cpp - Entry point to sanity check the fuzzer -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Implementation of main so we can build and test without linking libFuzzer.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv);
int main(int argc, char *argv[]) {
errs() << "*** This tool was not linked to libFuzzer.\n"
<< "*** No fuzzing will be performed.\n";
if (int RC = LLVMFuzzerInitialize(&argc, &argv)) {
errs() << "Initialization failed\n";
return RC;
}
for (int I = 1; I < argc; ++I) {
StringRef Arg(argv[I]);
if (Arg.startswith("-")) {
if (Arg.equals("-ignore_remaining_args=1"))
break;
continue;
}
auto BufOrErr = MemoryBuffer::getFile(Arg, /*FileSize-*/ -1,
/*RequiresNullTerminator=*/false);
if (std::error_code EC = BufOrErr.getError()) {
errs() << "Error reading file: " << Arg << ": " << EC.message() << "\n";
return 1;
}
std::unique_ptr<MemoryBuffer> Buf = std::move(BufOrErr.get());
errs() << "Running: " << Arg << " (" << Buf->getBufferSize() << " bytes)\n";
LLVMFuzzerTestOneInput(
reinterpret_cast<const uint8_t *>(Buf->getBufferStart()),
Buf->getBufferSize());
}
}
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