system/utest/hid-parser/hid-parser-fuzztest.cpp

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>

#include <fbl/auto_call.h>
#include <hid-parser/parser.h>

// fuzz_target.cc
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
    hid::DeviceDescriptor* dd = nullptr;
    auto result = hid::ParseReportDescriptor(data, size, &dd);
    if (result != hid::ParseResult::kParseOk) {
        return 0;
    }
    auto cleanup = fbl::MakeAutoCall([dd]() { hid::FreeDeviceDescriptor(dd); });

    size_t ff_count = 0u;
    auto collection __attribute__((unused)) =
        hid::GetAppCollection(hid::GetFirstInputField(dd, &ff_count));
    return 0;
}