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744 lines
26 KiB
744 lines
26 KiB
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (C) 2017 Saleem Rashid <trezor@saleemrashid.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "nem2.h"
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#include "aes/aes.h"
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#include "fsm.h"
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#include "gettext.h"
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#include "layout2.h"
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#include "memzero.h"
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#include "protect.h"
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#include "rng.h"
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#include "secp256k1.h"
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const char *nem_validate_common(NEMTransactionCommon *common, bool inner) {
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if (!common->has_network) {
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common->has_network = true;
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common->network = NEM_NETWORK_MAINNET;
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}
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if (common->network > 0xFF || nem_network_name(common->network) == NULL) {
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return inner ? _("Invalid NEM network in inner transaction")
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: _("Invalid NEM network");
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}
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if (inner != common->has_signer) {
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return inner ? _("No signer provided in inner transaction")
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: _("Signer not allowed in outer transaction");
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}
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if (common->has_signer && common->signer.size != sizeof(ed25519_public_key)) {
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return _("Invalid signer public key in inner transaction");
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}
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return NULL;
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}
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const char *nem_validate_transfer(const NEMTransfer *transfer,
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uint8_t network) {
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if (transfer->has_public_key &&
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transfer->public_key.size != sizeof(ed25519_public_key)) {
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return _("Invalid recipient public key");
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}
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if (!nem_validate_address(transfer->recipient, network))
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return _("Invalid recipient address");
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return NULL;
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}
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const char *nem_validate_provision_namespace(
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const NEMProvisionNamespace *provision_namespace, uint8_t network) {
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if (!nem_validate_address(provision_namespace->sink, network))
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return _("Invalid rental sink address");
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return NULL;
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}
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const char *nem_validate_mosaic_creation(
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const NEMMosaicCreation *mosaic_creation, uint8_t network) {
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if (!nem_validate_address(mosaic_creation->sink, network))
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return _("Invalid creation sink address");
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if (mosaic_creation->definition.has_name)
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return _("Name not allowed in mosaic creation transactions");
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if (mosaic_creation->definition.has_ticker)
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return _("Ticker not allowed in mosaic creation transactions");
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if (mosaic_creation->definition.networks_count)
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return _("Networks not allowed in mosaic creation transactions");
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if (mosaic_creation->definition.has_levy) {
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if (!mosaic_creation->definition.has_fee)
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return _("No levy address provided");
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if (!mosaic_creation->definition.has_levy_address)
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return _("No levy address provided");
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if (!mosaic_creation->definition.has_levy_namespace)
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return _("No levy namespace provided");
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if (!mosaic_creation->definition.has_levy_mosaic)
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return _("No levy mosaic name provided");
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if (!mosaic_creation->definition.has_divisibility)
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return _("No divisibility provided");
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if (!mosaic_creation->definition.has_supply) return _("No supply provided");
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if (!mosaic_creation->definition.has_mutable_supply)
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return _("No supply mutability provided");
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if (!mosaic_creation->definition.has_transferable)
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return _("No mosaic transferability provided");
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if (mosaic_creation->definition.divisibility > NEM_MAX_DIVISIBILITY)
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return _("Invalid divisibility provided");
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if (mosaic_creation->definition.supply > NEM_MAX_SUPPLY)
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return _("Invalid supply provided");
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if (!nem_validate_address(mosaic_creation->definition.levy_address,
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network))
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return _("Invalid levy address");
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}
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return NULL;
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}
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const char *nem_validate_supply_change(
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const NEMMosaicSupplyChange *supply_change) {
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(void)supply_change;
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return NULL;
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}
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const char *nem_validate_aggregate_modification(
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const NEMAggregateModification *aggregate_modification, bool creation) {
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if (creation && aggregate_modification->modifications_count == 0) {
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return _("No modifications provided");
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}
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for (size_t i = 0; i < aggregate_modification->modifications_count; i++) {
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const NEMCosignatoryModification *modification =
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&aggregate_modification->modifications[i];
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if (modification->public_key.size != 32)
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return _("Invalid cosignatory public key provided");
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if (creation && modification->type ==
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NEMModificationType_CosignatoryModification_Delete) {
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return _("Cannot remove cosignatory when converting account");
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}
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}
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return NULL;
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}
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const char *nem_validate_importance_transfer(
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const NEMImportanceTransfer *importance_transfer) {
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if (importance_transfer->public_key.size != 32)
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return _("Invalid remote account provided");
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return NULL;
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}
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bool nem_askTransfer(const NEMTransactionCommon *common,
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const NEMTransfer *transfer, const char *desc) {
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if (transfer->mosaics_count) {
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const NEMMosaic *xem = NULL;
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bool unknownMosaic = false;
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const NEMMosaicDefinition *definitions[transfer->mosaics_count];
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memset(definitions, 0, sizeof(definitions));
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for (size_t i = 0; i < transfer->mosaics_count; i++) {
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const NEMMosaic *mosaic = &transfer->mosaics[i];
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definitions[i] =
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nem_mosaicByName(mosaic->namespace, mosaic->mosaic, common->network);
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if (definitions[i] == NEM_MOSAIC_DEFINITION_XEM) {
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xem = mosaic;
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} else if (definitions[i] == NULL) {
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unknownMosaic = true;
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}
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}
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bignum256 multiplier = {0};
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bn_read_uint64(transfer->amount, &multiplier);
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if (unknownMosaic) {
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layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("I take the risk"),
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_("Unknown Mosaics"), _("Divisibility and levy"),
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_("cannot be shown for"), _("unknown mosaics!"), NULL,
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NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput,
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false)) {
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return false;
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}
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}
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layoutNEMTransferXEM(desc, xem ? xem->quantity : 0, &multiplier,
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common->fee);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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for (size_t i = 0; i < transfer->mosaics_count; i++) {
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const NEMMosaic *mosaic = &transfer->mosaics[i];
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if (mosaic == xem) {
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continue;
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}
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if (definitions[i]) {
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layoutNEMTransferMosaic(definitions[i], mosaic->quantity, &multiplier,
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common->network);
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} else {
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layoutNEMTransferUnknownMosaic(mosaic->namespace, mosaic->mosaic,
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mosaic->quantity, &multiplier);
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}
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput,
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false)) {
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return false;
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}
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}
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} else {
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layoutNEMTransferXEM(desc, transfer->amount, NULL, common->fee);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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}
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if (transfer->has_payload) {
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layoutNEMTransferPayload(transfer->payload.bytes, transfer->payload.size,
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transfer->has_public_key);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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}
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layoutNEMDialog(&bmp_icon_question, _("Cancel"), _("Confirm"), desc,
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_("Confirm transfer to"), transfer->recipient);
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if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
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return false;
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}
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return true;
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}
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bool nem_fsmTransfer(nem_transaction_ctx *context, const HDNode *node,
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const NEMTransactionCommon *common,
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const NEMTransfer *transfer) {
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static uint8_t
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encrypted[NEM_ENCRYPTED_PAYLOAD_SIZE(sizeof(transfer->payload.bytes))];
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const uint8_t *payload = transfer->payload.bytes;
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size_t size = transfer->payload.size;
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if (transfer->has_public_key) {
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if (node == NULL) {
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fsm_sendFailure(FailureType_Failure_ProcessError,
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_("Private key unavailable for encrypted message"));
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return false;
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}
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random_buffer(encrypted, NEM_SALT_SIZE + AES_BLOCK_SIZE);
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const uint8_t *salt = encrypted;
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const uint8_t *iv = &encrypted[NEM_SALT_SIZE];
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uint8_t *buffer = &encrypted[NEM_SALT_SIZE + AES_BLOCK_SIZE];
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bool ret = hdnode_nem_encrypt(node, transfer->public_key.bytes, iv, salt,
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payload, size, buffer);
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if (!ret) {
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fsm_sendFailure(FailureType_Failure_ProcessError,
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_("Failed to encrypt payload"));
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return false;
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}
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payload = encrypted;
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size = NEM_ENCRYPTED_PAYLOAD_SIZE(size);
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}
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bool ret = nem_transaction_create_transfer(
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context, common->network, common->timestamp, NULL, common->fee,
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common->deadline, transfer->recipient, transfer->amount, payload, size,
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transfer->has_public_key, transfer->mosaics_count);
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if (!ret) {
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fsm_sendFailure(FailureType_Failure_ProcessError,
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_("Failed to create transfer transaction"));
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return false;
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}
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for (size_t i = 0; i < transfer->mosaics_count; i++) {
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const NEMMosaic *mosaic = &transfer->mosaics[i];
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ret = nem_transaction_write_mosaic(context, mosaic->namespace,
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mosaic->mosaic, mosaic->quantity);
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if (!ret) {
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fsm_sendFailure(FailureType_Failure_ProcessError,
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_("Failed to attach mosaics"));
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return false;
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}
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}
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return true;
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}
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bool nem_askProvisionNamespace(const NEMTransactionCommon *common,
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const NEMProvisionNamespace *provision_namespace,
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const char *desc) {
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layoutDialogSwipe(
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&bmp_icon_question, _("Cancel"), _("Next"), desc, _("Create namespace"),
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provision_namespace->namespace,
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provision_namespace->has_parent ? _("under namespace") : NULL,
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provision_namespace->has_parent ? provision_namespace->parent : NULL,
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NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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layoutNEMNetworkFee(desc, true, _("Confirm rental fee of"),
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provision_namespace->fee, _("and network fee of"),
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common->fee);
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if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
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return false;
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}
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return true;
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}
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bool nem_fsmProvisionNamespace(
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nem_transaction_ctx *context, const NEMTransactionCommon *common,
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const NEMProvisionNamespace *provision_namespace) {
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return nem_transaction_create_provision_namespace(
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context, common->network, common->timestamp, NULL, common->fee,
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common->deadline, provision_namespace->namespace,
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provision_namespace->has_parent ? provision_namespace->parent : NULL,
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provision_namespace->sink, provision_namespace->fee);
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}
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bool nem_askMosaicCreation(const NEMTransactionCommon *common,
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const NEMMosaicCreation *mosaic_creation,
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const char *desc, const char *address) {
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layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Next"), desc,
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_("Create mosaic"), mosaic_creation->definition.mosaic,
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_("under namespace"), mosaic_creation->definition.namespace,
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NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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layoutNEMMosaicDescription(mosaic_creation->definition.description);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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char str_out[32] = {0};
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bn_format_uint64(mosaic_creation->definition.supply, NULL, NULL,
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mosaic_creation->definition.divisibility,
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mosaic_creation->definition.divisibility, true, str_out,
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sizeof(str_out));
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layoutDialogSwipe(
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&bmp_icon_question, _("Cancel"), _("Next"), _("Properties"),
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mosaic_creation->definition.mutable_supply ? _("Mutable supply:")
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: _("Immutable supply:"),
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str_out, _("Mosaic will be"),
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mosaic_creation->definition.transferable ? _("transferable")
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: _("non-transferable"),
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NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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if (mosaic_creation->definition.has_levy) {
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layoutNEMLevy(&mosaic_creation->definition, common->network);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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if (strcmp(address, mosaic_creation->definition.levy_address) == 0) {
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layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Next"),
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_("Levy Recipient"), _("Levy will be paid to"),
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_("yourself"), NULL, NULL, NULL, NULL);
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} else {
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layoutNEMDialog(&bmp_icon_question, _("Cancel"), _("Next"),
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_("Levy Recipient"), _("Levy will be paid to"),
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mosaic_creation->definition.levy_address);
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}
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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}
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layoutNEMNetworkFee(desc, true, _("Confirm creation fee"),
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mosaic_creation->fee, _("and network fee of"),
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common->fee);
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if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
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return false;
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}
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return true;
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}
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bool nem_fsmMosaicCreation(nem_transaction_ctx *context,
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const NEMTransactionCommon *common,
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const NEMMosaicCreation *mosaic_creation) {
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return nem_transaction_create_mosaic_creation(
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context, common->network, common->timestamp, NULL, common->fee,
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common->deadline, mosaic_creation->definition.namespace,
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mosaic_creation->definition.mosaic,
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mosaic_creation->definition.description,
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mosaic_creation->definition.divisibility,
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mosaic_creation->definition.supply,
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mosaic_creation->definition.mutable_supply,
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mosaic_creation->definition.transferable,
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mosaic_creation->definition.has_levy ? mosaic_creation->definition.levy
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: 0,
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mosaic_creation->definition.fee, mosaic_creation->definition.levy_address,
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mosaic_creation->definition.levy_namespace,
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mosaic_creation->definition.levy_mosaic, mosaic_creation->sink,
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mosaic_creation->fee);
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}
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bool nem_askSupplyChange(const NEMTransactionCommon *common,
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const NEMMosaicSupplyChange *supply_change,
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const char *desc) {
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layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Next"), desc,
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_("Modify supply for"), supply_change->mosaic,
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_("under namespace"), supply_change->namespace, NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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char str_out[32] = {0};
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bn_format_uint64(supply_change->delta, NULL, NULL, 0, 0, false, str_out,
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sizeof(str_out));
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layoutDialogSwipe(
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&bmp_icon_question, _("Cancel"), _("Next"), desc,
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supply_change->type == NEMSupplyChangeType_SupplyChange_Increase
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? _("Increase supply by")
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: _("Decrease supply by"),
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str_out, _("whole units"), NULL, NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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layoutNEMNetworkFee(desc, true, _("Confirm network fee"), common->fee, NULL,
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0);
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if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
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return false;
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}
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return true;
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}
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bool nem_fsmSupplyChange(nem_transaction_ctx *context,
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const NEMTransactionCommon *common,
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const NEMMosaicSupplyChange *supply_change) {
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return nem_transaction_create_mosaic_supply_change(
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context, common->network, common->timestamp, NULL, common->fee,
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common->deadline, supply_change->namespace, supply_change->mosaic,
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supply_change->type, supply_change->delta);
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}
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bool nem_askAggregateModification(
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const NEMTransactionCommon *common,
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const NEMAggregateModification *aggregate_modification, const char *desc,
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bool creation) {
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if (creation) {
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layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Next"), desc,
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_("Convert account to"), _("multisig account?"), NULL,
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NULL, NULL, NULL);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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}
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char address[NEM_ADDRESS_SIZE + 1] = {0};
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for (size_t i = 0; i < aggregate_modification->modifications_count; i++) {
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const NEMCosignatoryModification *modification =
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&aggregate_modification->modifications[i];
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nem_get_address(modification->public_key.bytes, common->network, address);
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layoutNEMDialog(
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&bmp_icon_question, _("Cancel"), _("Next"), desc,
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modification->type == NEMModificationType_CosignatoryModification_Add
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? _("Add cosignatory")
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: _("Remove cosignatory"),
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address);
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if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
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return false;
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}
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}
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int32_t relative_change = aggregate_modification->relative_change;
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if (relative_change) {
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char str_out[32] = {0};
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bn_format_uint64(relative_change < 0 ? -relative_change : relative_change,
|
|
NULL, NULL, 0, 0, false, str_out, sizeof(str_out));
|
|
|
|
layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Next"), desc,
|
|
creation ? _("Set minimum")
|
|
: (relative_change < 0 ? _("Decrease minimum")
|
|
: _("Increase minimum")),
|
|
creation ? _("cosignatories to") : _("cosignatories by"),
|
|
str_out, NULL, NULL, NULL);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
layoutNEMNetworkFee(desc, true, _("Confirm network fee"), common->fee, NULL,
|
|
0);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_fsmAggregateModification(
|
|
nem_transaction_ctx *context, const NEMTransactionCommon *common,
|
|
const NEMAggregateModification *aggregate_modification) {
|
|
bool ret = nem_transaction_create_aggregate_modification(
|
|
context, common->network, common->timestamp, NULL, common->fee,
|
|
common->deadline, aggregate_modification->modifications_count,
|
|
aggregate_modification->relative_change != 0);
|
|
if (!ret) return false;
|
|
|
|
for (size_t i = 0; i < aggregate_modification->modifications_count; i++) {
|
|
const NEMCosignatoryModification *modification =
|
|
&aggregate_modification->modifications[i];
|
|
|
|
ret = nem_transaction_write_cosignatory_modification(
|
|
context, modification->type, modification->public_key.bytes);
|
|
if (!ret) return false;
|
|
}
|
|
|
|
if (aggregate_modification->relative_change) {
|
|
ret = nem_transaction_write_minimum_cosignatories(
|
|
context, aggregate_modification->relative_change);
|
|
if (!ret) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_askImportanceTransfer(const NEMTransactionCommon *common,
|
|
const NEMImportanceTransfer *importance_transfer,
|
|
const char *desc) {
|
|
layoutDialogSwipe(
|
|
&bmp_icon_question, _("Cancel"), _("Next"), desc,
|
|
importance_transfer->mode ==
|
|
NEMImportanceTransferMode_ImportanceTransfer_Activate
|
|
? _("Activate remote")
|
|
: _("Deactivate remote"),
|
|
_("harvesting?"), NULL, NULL, NULL, NULL);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
|
|
return false;
|
|
}
|
|
|
|
layoutNEMNetworkFee(desc, true, _("Confirm network fee"), common->fee, NULL,
|
|
0);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_SignTx, false)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_fsmImportanceTransfer(
|
|
nem_transaction_ctx *context, const NEMTransactionCommon *common,
|
|
const NEMImportanceTransfer *importance_transfer) {
|
|
return nem_transaction_create_importance_transfer(
|
|
context, common->network, common->timestamp, NULL, common->fee,
|
|
common->deadline, importance_transfer->mode,
|
|
importance_transfer->public_key.bytes);
|
|
}
|
|
|
|
bool nem_askMultisig(const char *address, const char *desc, bool cosigning,
|
|
uint64_t fee) {
|
|
layoutNEMDialog(
|
|
&bmp_icon_question, _("Cancel"), _("Next"), desc,
|
|
cosigning ? _("Cosign transaction for") : _("Initiate transaction for"),
|
|
address);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
|
|
return false;
|
|
}
|
|
|
|
layoutNEMNetworkFee(desc, false, _("Confirm multisig fee"), fee, NULL, 0);
|
|
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmOutput, false)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nem_fsmMultisig(nem_transaction_ctx *context,
|
|
const NEMTransactionCommon *common,
|
|
const nem_transaction_ctx *inner, bool cosigning) {
|
|
bool ret;
|
|
if (cosigning) {
|
|
ret = nem_transaction_create_multisig_signature(
|
|
context, common->network, common->timestamp, NULL, common->fee,
|
|
common->deadline, inner);
|
|
} else {
|
|
ret = nem_transaction_create_multisig(context, common->network,
|
|
common->timestamp, NULL, common->fee,
|
|
common->deadline, inner);
|
|
}
|
|
|
|
if (!ret) {
|
|
fsm_sendFailure(FailureType_Failure_ProcessError,
|
|
_("Failed to create multisig transaction"));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const NEMMosaicDefinition *nem_mosaicByName(const char *namespace,
|
|
const char *mosaic,
|
|
uint8_t network) {
|
|
for (size_t i = 0; i < NEM_MOSAIC_DEFINITIONS_COUNT; i++) {
|
|
const NEMMosaicDefinition *definition = &NEM_MOSAIC_DEFINITIONS[i];
|
|
|
|
if (nem_mosaicMatches(definition, namespace, mosaic, network)) {
|
|
return definition;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline size_t format_amount(const NEMMosaicDefinition *definition,
|
|
const bignum256 *amnt,
|
|
const bignum256 *multiplier, int divisor,
|
|
char *str_out, size_t size) {
|
|
bignum256 val = {0};
|
|
memcpy(&val, amnt, sizeof(bignum256));
|
|
|
|
if (multiplier) {
|
|
bn_multiply(multiplier, &val, &secp256k1.prime);
|
|
divisor += NEM_MOSAIC_DEFINITION_XEM->divisibility;
|
|
}
|
|
|
|
return bn_format(
|
|
&val, NULL,
|
|
definition && definition->has_ticker ? definition->ticker : NULL,
|
|
definition && definition->has_divisibility ? definition->divisibility : 0,
|
|
-divisor, false, str_out, size);
|
|
}
|
|
|
|
void nem_canonicalizeMosaics(NEMTransfer *transfer) {
|
|
size_t old_count = transfer->mosaics_count;
|
|
|
|
if (old_count <= 1) {
|
|
return;
|
|
}
|
|
|
|
NEMMosaic *const mosaics = transfer->mosaics;
|
|
|
|
bool skip[old_count];
|
|
memzero(skip, sizeof(skip));
|
|
|
|
size_t new_count = 0;
|
|
|
|
// Merge duplicates
|
|
for (size_t i = 0; i < old_count; i++) {
|
|
if (skip[i]) continue;
|
|
|
|
NEMMosaic *mosaic = &mosaics[new_count];
|
|
|
|
if (new_count++ != i) {
|
|
memcpy(mosaic, &mosaics[i], sizeof(NEMMosaic));
|
|
}
|
|
|
|
for (size_t j = i + 1; j < old_count; j++) {
|
|
if (skip[j]) continue;
|
|
|
|
const NEMMosaic *new_mosaic = &mosaics[j];
|
|
|
|
if (nem_mosaicCompare(mosaic, new_mosaic) == 0) {
|
|
skip[j] = true;
|
|
mosaic->quantity += new_mosaic->quantity;
|
|
}
|
|
}
|
|
}
|
|
|
|
transfer->mosaics_count = new_count;
|
|
|
|
// Sort mosaics
|
|
for (size_t i = 0; i < new_count - 1; i++) {
|
|
NEMMosaic *a = &mosaics[i];
|
|
|
|
for (size_t j = i + 1; j < new_count; j++) {
|
|
NEMMosaic *b = &mosaics[j];
|
|
|
|
if (nem_mosaicCompare(a, b) > 0) {
|
|
NEMMosaic temp = {0};
|
|
memcpy(&temp, a, sizeof(NEMMosaic));
|
|
memcpy(a, b, sizeof(NEMMosaic));
|
|
memcpy(b, &temp, sizeof(NEMMosaic));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nem_mosaicFormatAmount(const NEMMosaicDefinition *definition,
|
|
uint64_t quantity, const bignum256 *multiplier,
|
|
char *str_out, size_t size) {
|
|
bignum256 amnt = {0};
|
|
bn_read_uint64(quantity, &amnt);
|
|
|
|
format_amount(definition, &amnt, multiplier, 0, str_out, size);
|
|
}
|
|
|
|
bool nem_mosaicFormatLevy(const NEMMosaicDefinition *definition,
|
|
uint64_t quantity, const bignum256 *multiplier,
|
|
uint8_t network, char *str_out, size_t size) {
|
|
if (!definition->has_levy || !definition->has_fee) {
|
|
return false;
|
|
}
|
|
|
|
bignum256 amnt = {0}, fee = {0};
|
|
bn_read_uint64(quantity, &amnt);
|
|
bn_read_uint64(definition->fee, &fee);
|
|
|
|
const NEMMosaicDefinition *mosaic = nem_mosaicByName(
|
|
definition->levy_namespace, definition->levy_mosaic, network);
|
|
|
|
switch (definition->levy) {
|
|
case NEMMosaicLevy_MosaicLevy_Absolute:
|
|
return format_amount(mosaic, &fee, NULL, 0, str_out, size);
|
|
|
|
case NEMMosaicLevy_MosaicLevy_Percentile:
|
|
bn_multiply(&fee, &amnt, &secp256k1.prime);
|
|
return format_amount(mosaic, &amnt, multiplier,
|
|
NEM_LEVY_PERCENTILE_DIVISOR, str_out, size);
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|