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Diffstat (limited to 'src/fmt/test/fuzzing/chrono-timepoint.cc')
-rw-r--r-- | src/fmt/test/fuzzing/chrono-timepoint.cc | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/fmt/test/fuzzing/chrono-timepoint.cc b/src/fmt/test/fuzzing/chrono-timepoint.cc new file mode 100644 index 000000000..8a1b24d29 --- /dev/null +++ b/src/fmt/test/fuzzing/chrono-timepoint.cc @@ -0,0 +1,32 @@ +// Copyright (c) 2021, Paul Dreik +// For license information refer to format.h. +#include <fmt/chrono.h> + +#include "fuzzer-common.h" + +/* + * a fuzzer for the chrono timepoints formatters + * C is a clock (std::chrono::system_clock etc) + */ +template <typename C> void doit(const uint8_t* data, size_t size) { + using Rep = typename C::time_point::rep; + constexpr auto N = sizeof(Rep); + if (size < N) return; + + const auto x = assign_from_buf<Rep>(data); + typename C::duration dur{x}; + typename C::time_point timepoint{dur}; + data += N; + size -= N; + data_to_string format_str(data, size); + + std::string message = fmt::format(format_str.get(), timepoint); +} + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { + try { + doit<std::chrono::system_clock>(data, size); + } catch (...) { + } + return 0; +} |