mirror of
https://github.com/open62541/open62541.git
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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2018 (c) Fraunhofer IOSB (Author: Julius Pfrommer)
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*/
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#include <open62541/types.h>
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/* Decode a message, then encode, decode, encode.
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* The two encodings must be bit-equal. */
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extern "C" int
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LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
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UA_ByteString buf;
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buf.data = (UA_Byte*)data;
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buf.length = size;
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UA_Variant value;
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UA_Variant_init(&value);
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UA_StatusCode retval = UA_decodeJson(&buf, &value, &UA_TYPES[UA_TYPES_VARIANT], NULL);
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if(retval != UA_STATUSCODE_GOOD)
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return 0;
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/* This can fail for now. For example length limits are not always computed
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* 100% identical between encoding and decoding. */
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size_t jsonSize = UA_calcSizeJson(&value, &UA_TYPES[UA_TYPES_VARIANT], NULL);
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if(jsonSize == 0) {
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UA_Variant_clear(&value);
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return 0;
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}
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UA_ByteString buf2 = UA_BYTESTRING_NULL;
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retval = UA_ByteString_allocBuffer(&buf2, jsonSize);
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if(retval != UA_STATUSCODE_GOOD) {
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UA_Variant_clear(&value);
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return 0;
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}
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retval = UA_encodeJson(&value, &UA_TYPES[UA_TYPES_VARIANT], &buf2, NULL);
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UA_assert(retval == UA_STATUSCODE_GOOD);
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UA_Variant value2;
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UA_Variant_init(&value2);
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retval = UA_decodeJson(&buf2, &value2, &UA_TYPES[UA_TYPES_VARIANT], NULL);
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if(retval == UA_STATUSCODE_BADOUTOFMEMORY) {
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UA_Variant_clear(&value);
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UA_ByteString_clear(&buf2);
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return 0;
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}
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UA_assert(retval == UA_STATUSCODE_GOOD);
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UA_assert(UA_order(&value, &value2, &UA_TYPES[UA_TYPES_VARIANT]) == UA_ORDER_EQ);
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UA_ByteString buf3 = UA_BYTESTRING_NULL;
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retval = UA_ByteString_allocBuffer(&buf3, jsonSize);
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if(retval != UA_STATUSCODE_GOOD) {
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UA_Variant_clear(&value);
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UA_Variant_clear(&value2);
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UA_ByteString_clear(&buf2);
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return 0;
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}
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retval = UA_encodeJson(&value2, &UA_TYPES[UA_TYPES_VARIANT], &buf3, NULL);
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UA_assert(retval == UA_STATUSCODE_GOOD);
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UA_assert(buf2.length == buf3.length);
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UA_assert(memcmp(buf2.data, buf3.data, buf2.length) == 0);
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UA_Variant_clear(&value);
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UA_Variant_clear(&value2);
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UA_ByteString_clear(&buf2);
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UA_ByteString_clear(&buf3);
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return 0;
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}
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