forked from OSchip/llvm-project
37 lines
985 B
C++
37 lines
985 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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// The fuzzer must find several constants with swapped bytes.
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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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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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if (Size < 14) return 0;
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uint64_t x = 0;
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uint32_t y = 0;
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uint32_t z = 0;
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memcpy(&x, Data, sizeof(x));
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memcpy(&y, Data + Size / 2, sizeof(y));
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memcpy(&z, Data + Size - sizeof(z), sizeof(z));
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x = __builtin_bswap64(x);
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y = __builtin_bswap32(y);
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z = __builtin_bswap32(z);
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const bool k32bit = sizeof(void*) == 4;
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if ((k32bit || x == 0x46555A5A5A5A5546ULL) &&
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z == 0x4F4B &&
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y == 0x66757A7A &&
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true
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) {
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if (Data[Size - 5] == 'z') {
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fprintf(stderr, "BINGO; Found the target\n");
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exit(1);
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}
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}
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return 0;
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}
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