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/* 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/plugin/log_stdout.h>
#include <open62541/server_config_default.h>
#include <open62541/types.h>
/*
** Main entry point. The fuzzer invokes this function with each
** fuzzed input.
*/
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if(size <= 6)
return 0;
// set the available memory
if(!UA_memoryManager_setLimitFromLast4Bytes(data, size))
return 0;
data += 4;
size -= 4;
// get some random type
uint16_t typeIndex = (uint16_t)(data[0] | data[1] << 8);
data += 2;
size -= 2;
if(typeIndex >= UA_TYPES_COUNT)
return UA_FALSE;
void *dst = UA_new(&UA_TYPES[typeIndex]);
if(!dst)
return 0;
const UA_ByteString binary = {
size, //length
(UA_Byte *) (void *) data
};
UA_StatusCode ret = UA_decodeBinary(&binary, dst, &UA_TYPES[typeIndex], NULL);
if(ret != UA_STATUSCODE_GOOD) {
UA_delete(dst, &UA_TYPES[typeIndex]);
return 0;
}
// copy the datatype to test
void *dstCopy = UA_new(&UA_TYPES[typeIndex]);
if(!dstCopy) {
UA_delete(dst, &UA_TYPES[typeIndex]);
return 0;
}
ret = UA_copy(dst, dstCopy, &UA_TYPES[typeIndex]);
if(ret != UA_STATUSCODE_GOOD) {
UA_delete(dst, &UA_TYPES[typeIndex]);
UA_delete(dstCopy, &UA_TYPES[typeIndex]);
return 0;
}
// compare with copy
UA_assert(UA_order(dst, dstCopy, &UA_TYPES[typeIndex]) == UA_ORDER_EQ);
UA_delete(dstCopy, &UA_TYPES[typeIndex]);
// now also test encoding
size_t encSize = UA_calcSizeBinary(dst, &UA_TYPES[typeIndex]);
UA_ByteString encoded;
ret = UA_ByteString_allocBuffer(&encoded, encSize);
if(ret != UA_STATUSCODE_GOOD) {
UA_delete(dst, &UA_TYPES[typeIndex]);
return 0;
}
ret = UA_encodeBinary(dst, &UA_TYPES[typeIndex], &encoded);
UA_assert(ret == UA_STATUSCODE_GOOD);
UA_ByteString_clear(&encoded);
UA_delete(dst, &UA_TYPES[typeIndex]);
return 0;
}
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