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// Copyright (c) 2019-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <node/psbt.h>
#include <psbt.h>
#include <pubkey.h>
#include <script/script.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/util/random.h>
#include <util/check.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
using node::AnalyzePSBT;
using node::PSBTAnalysis;
using node::PSBTInputAnalysis;
FUZZ_TARGET(psbt)
{
SeedRandomStateForTest(SeedRand::ZEROS);
FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
PartiallySignedTransaction psbt_mut;
std::string error;
auto str = fuzzed_data_provider.ConsumeRandomLengthString();
if (!DecodeRawPSBT(psbt_mut, MakeByteSpan(str), error)) {
return;
}
const PartiallySignedTransaction psbt = psbt_mut;
const PSBTAnalysis analysis = AnalyzePSBT(psbt);
(void)PSBTRoleName(analysis.next);
for (const PSBTInputAnalysis& input_analysis : analysis.inputs) {
(void)PSBTRoleName(input_analysis.next);
}
(void)psbt.IsNull();
std::optional<CMutableTransaction> tx = psbt.tx;
if (tx) {
const CMutableTransaction& mtx = *tx;
const PartiallySignedTransaction psbt_from_tx{mtx};
}
for (const PSBTInput& input : psbt.inputs) {
(void)PSBTInputSigned(input);
(void)input.IsNull();
}
(void)CountPSBTUnsignedInputs(psbt);
for (const PSBTOutput& output : psbt.outputs) {
(void)output.IsNull();
}
for (size_t i = 0; i < psbt.tx->vin.size(); ++i) {
CTxOut tx_out;
if (psbt.GetInputUTXO(tx_out, i)) {
(void)tx_out.IsNull();
(void)tx_out.ToString();
}
}
psbt_mut = psbt;
(void)FinalizePSBT(psbt_mut);
psbt_mut = psbt;
CMutableTransaction result;
if (FinalizeAndExtractPSBT(psbt_mut, result)) {
const PartiallySignedTransaction psbt_from_tx{result};
}
PartiallySignedTransaction psbt_merge;
str = fuzzed_data_provider.ConsumeRandomLengthString();
if (!DecodeRawPSBT(psbt_merge, MakeByteSpan(str), error)) {
psbt_merge = psbt;
}
psbt_mut = psbt;
(void)psbt_mut.Merge(psbt_merge);
psbt_mut = psbt;
(void)CombinePSBTs(psbt_mut, {psbt_mut, psbt_merge});
psbt_mut = psbt;
for (unsigned int i = 0; i < psbt_merge.tx->vin.size(); ++i) {
(void)psbt_mut.AddInput(psbt_merge.tx->vin[i], psbt_merge.inputs[i]);
}
for (unsigned int i = 0; i < psbt_merge.tx->vout.size(); ++i) {
Assert(psbt_mut.AddOutput(psbt_merge.tx->vout[i], psbt_merge.outputs[i]));
}
psbt_mut.unknown.insert(psbt_merge.unknown.begin(), psbt_merge.unknown.end());
}
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