43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
#include "src/mcp/codec.hpp"
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#include "src/mcp/jsonrpc.hpp"
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#include <cstddef>
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#include <cstdint>
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#include <string_view>
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namespace {
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constexpr std::size_t maximum_frame_bytes = 1024U * 1024U;
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void exercise_response(std::string_view frame) {
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auto response = glove::mcp::codec::decode_response(frame);
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if (!response) {
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return;
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}
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static_cast<void>(glove::mcp::codec::parse_initialize_result(*response));
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static_cast<void>(glove::mcp::codec::parse_tools_list_result(*response));
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static_cast<void>(glove::mcp::codec::parse_tools_call_result(*response));
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static_cast<void>(glove::mcp::codec::parse_resources_list_result(*response));
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static_cast<void>(glove::mcp::codec::parse_prompts_list_result(*response));
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}
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void exercise_request(std::string_view frame) {
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static_cast<void>(glove::mcp::codec::decode_request(frame));
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}
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} // namespace
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extern "C" auto LLVMFuzzerTestOneInput(const std::uint8_t* data, std::size_t size) -> int {
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if (size > maximum_frame_bytes) {
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return 0;
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}
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// libFuzzer owns this byte span for the duration of the callback. The view
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// is non-owning and cannot escape either parser exercise.
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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const std::string_view frame{reinterpret_cast<const char*>(data), size};
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exercise_response(frame);
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exercise_request(frame);
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return 0;
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}
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