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Code Issues Releases Wiki Activity

move change logic before confirmation

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This commit is contained in:
Pavol Rusnak 2014-12-20 20:55:32 +01:00
parent 7000451f71
commit 0898c707d9
1 changed files with 20 additions and 13 deletions
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33
firmware/signing.c
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@ -322,7 +322,26 @@ void signing_txack(TransactionType *tx)
return;
case STAGE_REQUEST_3_OUTPUT:
layoutProgress("Signing", 1000 * progress / progress_total, progress); progress++;
co = compile_output(coin, root, tx->outputs, &bin_output, idx1i == 0);
bool is_change = false;
if (idx1i == 0) {
if (tx->outputs[0].has_multisig) {
is_change = false; // TODO: detect when not needed
} else
if (tx->outputs[0].address_n_count > 0) { // address_n set -> change address
is_change = true;
}
if (is_change) {
if (change_spend == 0) { // not set
change_spend = tx->outputs[0].amount;
} else {
fsm_sendFailure(FailureType_Failure_Other, "Only one change output allowed");
signing_abort();
return;
}
}
spending += tx->outputs[0].amount;
}
co = compile_output(coin, root, tx->outputs, &bin_output, idx1i == 0 && !is_change);
layoutProgress("Signing", 1000 * progress / progress_total, progress); progress++;
if (co < 0) {
fsm_sendFailure(FailureType_Failure_Other, "Signing cancelled by user");
@ -343,18 +362,6 @@ void signing_txack(TransactionType *tx)
signing_abort();
return;
}
if (idx1i == 0) {
if (tx->outputs[0].address_n_count > 0) { // address_n set -> change address
if (change_spend == 0) { // not set
change_spend = tx->outputs[0].amount;
} else {
fsm_sendFailure(FailureType_Failure_Other, "Only one change output allowed");
signing_abort();
return;
}
}
spending += tx->outputs[0].amount;
}
if (idx3o < outputs_count - 1) {
idx3o++;
send_req_3_output();