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author | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 10:05:08 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 10:05:08 +0000 |
commit | 0646903fc1f75f6e605754621119473ee083f4a4 (patch) | |
tree | 57bce79a7423a054cccec23bdf6cd96e2d271b4a /test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp | |
parent | 005b7ed8f76756d94ef6266ded755ab7863cb936 (diff) | |
download | src-test2-f0e521381486bc5a6c3d35e6136690492889ae2f.tar.gz src-test2-f0e521381486bc5a6c3d35e6136690492889ae2f.zip |
Diffstat (limited to 'test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp')
-rw-r--r-- | test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp b/test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp new file mode 100644 index 000000000000..c0bf40ab08f9 --- /dev/null +++ b/test/fuzzer/ImplicitUnsignedIntegerTruncationTest.cpp @@ -0,0 +1,27 @@ +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. + +// Test for unsigned-integer-overflow. +#include <assert.h> +#include <climits> +#include <cstddef> +#include <cstdint> +#include <cstdlib> +#include <iostream> + +static volatile int32_t Sink; +static uint8_t Large = UINT8_MAX; + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + assert(Data); + if (Size > 0 && Data[0] == 'H') { + Sink = 1; + if (Size > 1 && Data[1] == 'i') { + Sink = 2; + if (Size > 2 && Data[2] == '!') { + Large = (unsigned int)Large + 1U; // 'char overflow'. + } + } + } + return 0; +} |