43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include "zlib.h"
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static Bytef buffer[256 * 1024] = { 0 };
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#ifdef INTENTIONAL_STARTUP_CRASH
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void bad_term_handler(int signum) {
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_exit(0);
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}
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#endif
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// Entry point for LibFuzzer.
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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#ifdef INTENTIONAL_STARTUP_CRASH
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// Simulates the worst case, fuzz target silently dies without any error.
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struct sigaction action = { 0 };
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action.sa_handler = bad_term_handler;
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sigaction(SIGTERM, &action, NULL);
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// Cannot call _exit(0) directly, as it's even worse -- sancov does not print
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// any coverage information in that case.
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kill(getpid(), SIGTERM);
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#endif
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uLongf buffer_length = static_cast<uLongf>(sizeof(buffer));
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if (Z_OK != uncompress(buffer, &buffer_length, data,
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static_cast<uLong>(size))) {
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return 0;
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}
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return 0;
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}
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