/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 *    Copyright 2019 (c) fortiss (Author: Stefan Profanter)

 */

#include "custom_memory_manager.h"

#include <open62541/util.h>

static int tortureParseEndpointUrl(const uint8_t *data, size_t size) {

    const UA_String endpointUrl = {

        size, (UA_Byte* )(void*)data

    };

    UA_String hostname;

    UA_UInt16 port;

    UA_String path;

    UA_parseEndpointUrl(&endpointUrl, &hostname, &port, &path);

    return 0;

}

static int tortureParseEndpointUrlEthernet(const uint8_t *data, size_t size) {

    const UA_String endpointUrl = {

        size, (UA_Byte* )(void*)data

    };

    UA_String target;

    UA_UInt16 vid;

    UA_Byte prid;

    UA_parseEndpointUrlEthernet(&endpointUrl, &target, &vid, &prid);

    return 0;

}

/*

** Main entry point.  The fuzzer invokes this function with each

** fuzzed input.

*/

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

    if (!UA_memoryManager_setLimitFromLast4Bytes(data, size))

        return 0;

    size -= 4;

    if (size == 0)

        return 0;

    // use first byte to decide which function should be fuzzed

    const uint8_t select = data[0];

    const uint8_t *newData = &data[1];

    size_t  newSize = size-1;

    switch(select) {

        case 0:

            return tortureParseEndpointUrl(newData, newSize);

        case 1:

            return tortureParseEndpointUrlEthernet(newData, newSize);

        default:

            return 0;

    }

}