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Diffstat (limited to 'test/fuzzer/Switch2Test.cpp')
-rw-r--r-- | test/fuzzer/Switch2Test.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/fuzzer/Switch2Test.cpp b/test/fuzzer/Switch2Test.cpp new file mode 100644 index 000000000000..5f66ac8b499e --- /dev/null +++ b/test/fuzzer/Switch2Test.cpp @@ -0,0 +1,35 @@ +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. + +// Simple test for a fuzzer. The fuzzer must find the interesting switch value. +#include <cstddef> +#include <cstdint> +#include <cstdio> +#include <cstdlib> +#include <cstring> + +int Switch(int a) { + switch(a) { + case 100001: return 1; + case 100002: return 2; + case 100003: return 4; + } + return 0; +} + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + const int N = 3; + if (Size < N * sizeof(int)) return 0; + int Res = 0; + for (int i = 0; i < N; i++) { + int X; + memcpy(&X, Data + i * sizeof(int), sizeof(int)); + Res += Switch(X); + } + if (Res == 5 || Res == 3 || Res == 6 || Res == 7) { + fprintf(stderr, "BINGO; Found the target, exiting; Res=%d\n", Res); + exit(1); + } + return 0; +} + |