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@ -943,14 +943,15 @@ void tx_hash_final(TxStruct *t, uint8_t *hash, bool reverse) {
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}
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}
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static uint32_t tx_input_script_size(const TxInputType *txinput) {
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static uint32_t tx_input_script_size(const TxInputType *txinput,
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InputScriptType script_type) {
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uint32_t input_script_size = 0;
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if (txinput->has_multisig) {
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uint32_t multisig_script_size =
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TXSIZE_MULTISIGSCRIPT +
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cryptoMultisigPubkeyCount(&(txinput->multisig)) * (1 + TXSIZE_PUBKEY);
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if (txinput->script_type == InputScriptType_SPENDWITNESS ||
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txinput->script_type == InputScriptType_SPENDP2SHWITNESS) {
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if (script_type == InputScriptType_SPENDWITNESS ||
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script_type == InputScriptType_SPENDP2SHWITNESS) {
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multisig_script_size += ser_length_size(multisig_script_size);
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} else {
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multisig_script_size += op_push_size(multisig_script_size);
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@ -958,7 +959,7 @@ static uint32_t tx_input_script_size(const TxInputType *txinput) {
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input_script_size = 1 // the OP_FALSE bug in multisig
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+ txinput->multisig.m * (1 + TXSIZE_DER_SIGNATURE) +
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multisig_script_size;
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} else if (txinput->script_type == InputScriptType_SPENDTAPROOT) {
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} else if (script_type == InputScriptType_SPENDTAPROOT) {
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input_script_size = 1 + TXSIZE_SCHNORR_SIGNATURE;
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} else {
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input_script_size = (1 + TXSIZE_DER_SIGNATURE + 1 + TXSIZE_PUBKEY);
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@ -976,16 +977,37 @@ uint32_t tx_input_weight(const CoinInfo *coin, const TxInputType *txinput) {
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(void)coin;
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#endif
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uint32_t input_script_size = tx_input_script_size(txinput);
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InputScriptType script_type = txinput->script_type;
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if (script_type == InputScriptType_EXTERNAL) {
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// Guess the script type from the scriptPubKey.
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switch (txinput->script_pubkey.bytes[0]) {
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case 0x76: // OP_DUP (P2PKH)
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script_type = InputScriptType_SPENDADDRESS;
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break;
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case 0xA9: // OP_HASH_160 (P2SH, probably nested P2WPKH)
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script_type = InputScriptType_SPENDP2SHWITNESS;
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break;
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case 0x00: // SegWit v0 (probably P2WPKH)
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script_type = InputScriptType_SPENDWITNESS;
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break;
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case 0x51: // SegWit v1 (P2TR)
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script_type = InputScriptType_SPENDTAPROOT;
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break;
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default: // Unknown script type.
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break;
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}
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}
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uint32_t input_script_size = tx_input_script_size(txinput, script_type);
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uint32_t weight = 4 * TXSIZE_INPUT;
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if (txinput->script_type == InputScriptType_SPENDADDRESS ||
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txinput->script_type == InputScriptType_SPENDMULTISIG) {
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if (script_type == InputScriptType_SPENDADDRESS ||
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script_type == InputScriptType_SPENDMULTISIG) {
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input_script_size += ser_length_size(input_script_size);
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weight += 4 * input_script_size;
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} else if (txinput->script_type == InputScriptType_SPENDWITNESS ||
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txinput->script_type == InputScriptType_SPENDTAPROOT ||
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txinput->script_type == InputScriptType_SPENDP2SHWITNESS) {
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if (txinput->script_type == InputScriptType_SPENDP2SHWITNESS) {
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} else if (script_type == InputScriptType_SPENDWITNESS ||
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script_type == InputScriptType_SPENDTAPROOT ||
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script_type == InputScriptType_SPENDP2SHWITNESS) {
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if (script_type == InputScriptType_SPENDP2SHWITNESS) {
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weight += 4 * (2 + (txinput->has_multisig ? TXSIZE_WITNESSSCRIPT
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: TXSIZE_WITNESSPKHASH));
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} else {
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@ -993,6 +1015,7 @@ uint32_t tx_input_weight(const CoinInfo *coin, const TxInputType *txinput) {
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}
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weight += input_script_size; // discounted witness
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}
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return weight;
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}
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@ -1060,7 +1083,8 @@ uint32_t tx_output_weight(const CoinInfo *coin, const TxOutputType *txoutput) {
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#if !BITCOIN_ONLY
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uint32_t tx_decred_witness_weight(const TxInputType *txinput) {
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uint32_t input_script_size = tx_input_script_size(txinput);
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uint32_t input_script_size =
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tx_input_script_size(txinput, txinput->script_type);
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uint32_t size = TXSIZE_DECRED_WITNESS + ser_length_size(input_script_size) +
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input_script_size;
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