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2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
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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// Simple test for a fuzzer. The fuzzer must find the interesting switch value.
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#include <cstddef>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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static volatile int Sink;
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template<class T>
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bool Switch(const uint8_t *Data, size_t Size) {
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T X;
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if (Size < sizeof(X)) return false;
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memcpy(&X, Data, sizeof(X));
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switch (X) {
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case 1: Sink = __LINE__; break;
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case 101: Sink = __LINE__; break;
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case 1001: Sink = __LINE__; break;
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case 10001: Sink = __LINE__; break;
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case 100001: Sink = __LINE__; break;
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case 1000001: Sink = __LINE__; break;
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case 10000001: Sink = __LINE__; break;
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case 100000001: return true;
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}
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return false;
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}
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bool ShortSwitch(const uint8_t *Data, size_t Size) {
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short X;
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if (Size < sizeof(short)) return false;
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memcpy(&X, Data, sizeof(short));
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switch(X) {
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case 42: Sink = __LINE__; break;
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case 402: Sink = __LINE__; break;
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case 4002: Sink = __LINE__; break;
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case 5002: Sink = __LINE__; break;
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case 7002: Sink = __LINE__; break;
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case 9002: Sink = __LINE__; break;
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case 14002: Sink = __LINE__; break;
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case 21402: return true;
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}
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return false;
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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 >= 4 && Switch<int>(Data, Size) &&
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Size >= 12 && Switch<uint64_t>(Data + 4, Size - 4) &&
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Size >= 14 && ShortSwitch(Data + 12, 2)
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) {
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fprintf(stderr, "BINGO; Found the target, exiting\n");
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exit(1);
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}
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return 0;
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}
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