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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/cbor.h>
#include <math.h>
/* NOLINTNEXTLINE(readability-identifier-naming) */
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
struct aws_allocator *allocator = aws_mem_tracer_new(aws_default_allocator(), NULL, AWS_MEMTRACE_BYTES, 0);
struct aws_byte_cursor input = aws_byte_cursor_from_array(data, size);
double val = 0;
if (!aws_byte_cursor_read_float_be64(&input, &val)) {
allocator = aws_mem_tracer_destroy(allocator);
/* Ignore the invalid double */
return 0;
}
aws_common_library_init(allocator);
struct aws_cbor_encoder *encoder = aws_cbor_encoder_new(allocator);
aws_cbor_encoder_write_float(encoder, val);
struct aws_byte_cursor final_cursor = aws_cbor_encoder_get_encoded_data(encoder);
struct aws_cbor_decoder *decoder = aws_cbor_decoder_new(allocator, final_cursor);
enum aws_cbor_type out_type = AWS_CBOR_TYPE_UNKNOWN;
AWS_FATAL_ASSERT(aws_cbor_decoder_peek_type(decoder, &out_type) == 0);
switch (out_type) {
case AWS_CBOR_TYPE_UINT: {
uint64_t result = 0;
AWS_FATAL_ASSERT(aws_cbor_decoder_pop_next_unsigned_int_val(decoder, &result) == 0);
AWS_FATAL_ASSERT((double)result == val);
break;
}
case AWS_CBOR_TYPE_NEGINT: {
uint64_t result = 0;
AWS_FATAL_ASSERT(aws_cbor_decoder_pop_next_negative_int_val(decoder, &result) == 0);
int64_t expected_val = -1 - result;
AWS_FATAL_ASSERT(expected_val == (int64_t)val);
break;
}
case AWS_CBOR_TYPE_FLOAT: {
double result = 0;
AWS_FATAL_ASSERT(aws_cbor_decoder_pop_next_float_val(decoder, &result) == 0);
if (isnan(val)) {
AWS_FATAL_ASSERT(isnan(result));
} else {
AWS_FATAL_ASSERT(result == val);
}
break;
}
default:
AWS_FATAL_ASSERT(false);
break;
}
AWS_FATAL_ASSERT(aws_cbor_decoder_get_remaining_length(decoder) == 0);
aws_cbor_encoder_destroy(encoder);
aws_cbor_decoder_destroy(decoder);
atexit(aws_common_library_clean_up);
/* Check for leaks */
AWS_FATAL_ASSERT(aws_mem_tracer_count(allocator) == 0);
allocator = aws_mem_tracer_destroy(allocator);
return 0;
}
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