3db6ad2bcf
Summary: When using libfuzzer on Windows, in the contents of a crash sample, bytes that can be mistaken for a \n are replaced by a \r\n sequence. As a consequence, crashes are not reproducible. This patch will open files in binary mode to fix this issue. The patch does not affect POSIX systems. Patch by tuktuk Reviewers: kcc, vitalybuka Reviewed By: vitalybuka Subscribers: dexonsmith, jdoerfert, llvm-commits, #sanitizers Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D60008 llvm-svn: 357807
25 lines
858 B
C++
25 lines
858 B
C++
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// Test that fuzzer we can reload artifacts with any bytes inside.
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#include <algorithm>
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#include <cstdint>
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#include <numeric>
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#include <set>
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#include <stdio.h>
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extern "C" size_t LLVMFuzzerCustomMutator(uint8_t *Data, size_t Size,
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size_t MaxSize, unsigned int Seed) {
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std::srand(Seed);
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std::generate(Data, Data + MaxSize, std::rand);
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return MaxSize;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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if (Size > 5000 && std::set<uint8_t>(Data, Data + Size).size() > 255 &&
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(uint8_t)std::accumulate(Data, Data + Size, uint8_t(Size)) == 0)
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__builtin_trap();
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return 0;
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}
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