Class PSBTInput

src/script/sign.h:204–426

A structure for PSBTs which contain per-input information */

/** A structure for PSBTs which contain per-input information */
struct PSBTInput
{
    CTransactionRef non_witness_utxo;
    CTxOut witness_utxo;
    CScript redeem_script;
    CScript witness_script;
    CScript final_script_sig;
    CScriptWitness final_script_witness;
    std::map<CPubKey, std::vector<uint32_t>> hd_keypaths;
    std::map<CKeyID, SigPair> partial_sigs;
    std::map<std::vector<unsigned char>, std::vector<unsigned char>> unknown;
    int sighash_type = 0;

    bool IsNull() const;
    void FillSignatureData(SignatureData& sigdata) const;
    void FromSignatureData(const SignatureData& sigdata);
    void Merge(const PSBTInput& input);
    bool IsSane() const;
    PSBTInput() {}

    template <typename Stream>
    inline void Serialize(Stream& s) const {
        // Write the utxo
        // If there is a non-witness utxo, then don't add the witness one.
        if (non_witness_utxo) {
            SerializeToVector(s, PSBT_IN_NON_WITNESS_UTXO);
            OverrideStream<Stream> os(&s, s.GetType(), s.GetVersion() | SERIALIZE_TRANSACTION_NO_WITNESS);
            SerializeToVector(os, non_witness_utxo);
        } else if (!witness_utxo.IsNull()) {
            SerializeToVector(s, PSBT_IN_WITNESS_UTXO);
            SerializeToVector(s, witness_utxo);
        }

        if (final_script_sig.empty() && final_script_witness.IsNull()) {
            // Write any partial signatures
            for (auto sig_pair : partial_sigs) {
                SerializeToVector(s, PSBT_IN_PARTIAL_SIG, MakeSpan(sig_pair.second.first));
                s << sig_pair.second.second;
            }

            // Write the sighash type
            if (sighash_type > 0) {
                SerializeToVector(s, PSBT_IN_SIGHASH);
                SerializeToVector(s, sighash_type);
            }

            // Write the redeem script
            if (!redeem_script.empty()) {
                SerializeToVector(s, PSBT_IN_REDEEMSCRIPT);
                s << redeem_script;
            }

            // Write the witness script
            if (!witness_script.empty()) {
                SerializeToVector(s, PSBT_IN_WITNESSSCRIPT);
                s << witness_script;
            }