uint32_t CBTransactionOutputSerialise(CBTransactionOutput * self){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBLogError("Attempting to serialise a CBTransactionInput with no bytes.");
return 0;
}
if (NOT self->scriptObject){
CBLogError("Attempting to serialise a CBTransactionOutput without scriptObject.");
return 0;
}
CBVarInt scriptLen = CBVarIntFromUInt64(CBGetByteArray(self->scriptObject)->length);
uint32_t reqLen = 8 + scriptLen.size + CBGetByteArray(self->scriptObject)->length;
if (bytes->length < reqLen) {
CBLogError("Attempting to serialise a CBTransactionOutput with less bytes than required. %i < %i", bytes->length, reqLen);
return 0;
}
// Serialise data into the CBByteArray and rereference objects to this CBByteArray to save memory.
CBByteArraySetInt64(bytes, 0, self->value);
CBVarIntEncode(bytes, 8, scriptLen);
CBByteArrayCopyByteArray(bytes, 8 + scriptLen.size, CBGetByteArray(self->scriptObject));
CBByteArrayChangeReference(CBGetByteArray(self->scriptObject), bytes, 8 + scriptLen.size);
// Ensure length is correct
bytes->length = reqLen;
// Is serialised.
CBGetMessage(self)->serialised = true;
return reqLen;
}
uint32_t CBTransactionInputSerialise(CBTransactionInput * self){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_NULL_BYTES,"Attempting to serialise a CBTransactionInput with no bytes.");
return 0;
}
if (NOT self->prevOut.hash){
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_DATA,"Attempting to serialise a CBTransactionInput without prevOut.hash.");
return 0;
}
if (NOT self->scriptObject){
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_DATA,"Attempting to serialise a CBTransactionInput without scriptObject.");
return 0;
}
CBVarInt scriptLen = CBVarIntFromUInt64(CBGetByteArray(self->scriptObject)->length);
uint32_t reqLen = 40 + scriptLen.size + CBGetByteArray(self->scriptObject)->length;
if (bytes->length < reqLen) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_BYTES,"Attempting to serialise a CBTransactionInput with less bytes than required. %i < %i\n",bytes->length, reqLen);
return 0;
}
// Serialise data into the CBByteArray and rereference objects to this CBByteArray to save memory.
CBByteArrayCopyByteArray(bytes, 0, self->prevOut.hash);
CBByteArrayChangeReference(self->prevOut.hash, bytes, 0);
CBByteArraySetInt32(bytes, 32, self->prevOut.index);
CBVarIntEncode(bytes, 36, scriptLen);
CBByteArrayCopyByteArray(bytes, 36 + scriptLen.size,CBGetByteArray(self->scriptObject));
CBByteArrayChangeReference(CBGetByteArray(self->scriptObject),bytes,36 + scriptLen.size);
CBByteArraySetInt32(bytes,36 + scriptLen.size + CBGetByteArray(self->scriptObject)->length,self->sequence);
CBGetMessage(self)->serialised = true;
return reqLen;
}
uint32_t CBInventoryBroadcastSerialise(CBInventoryBroadcast * self){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->events->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_NULL_BYTES,"Attempting to serialise a CBInventoryBroadcast with no bytes.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->itemNum);
if (bytes->length < num.size + 36 * self->itemNum) {
CBGetMessage(self)->events->onErrorReceived(CB_ERROR_MESSAGE_DESERIALISATION_BAD_BYTES,"Attempting to deserialise a CBInventoryBroadcast with less bytes than required.");
return 0;
}
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint16_t x = 0; x < num.val; x++) {
CBGetMessage(self->items[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
uint32_t len = CBInventoryItemSerialise(self->items[x]);
if (NOT len) {
CBGetMessage(self)->events->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_BYTES,"CBInventoryBroadcast cannot be serialised because of an error with the CBInventoryItem number %u.",x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++) {
CBReleaseObject(CBGetMessage(self->items[y])->bytes);
}
return 0;
}
CBGetMessage(self->items[x])->bytes->length = len;
cursor += len;
}
return cursor;
}
uint32_t CBBlockHeadersSerialise(CBBlockHeaders * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (! bytes) {
CBLogError("Attempting to serialise a CBBlockHeaders with no bytes.");
return 0;
}
if (bytes->length < 81 * self->headerNum) {
CBLogError("Attempting to deserialise a CBBlockHeaders with less bytes than minimally required.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->headerNum);
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint16_t x = 0; x < num.val; x++) {
if (! CBGetMessage(self->blockHeaders[x])->serialised // Serailise if not serialised yet.
// Serialise if force is true.
|| force
// If the data shares the same data as the block headers message, re-serialise the block header, in case it got overwritten.
|| CBGetMessage(self->blockHeaders[x])->bytes->sharedData == bytes->sharedData) {
if (CBGetMessage(self->blockHeaders[x])->serialised)
// Release old byte array
CBReleaseObject(CBGetMessage(self->blockHeaders[x])->bytes);
CBGetMessage(self->blockHeaders[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (! CBGetMessage(self->blockHeaders[x])->bytes) {
CBLogError("Cannot create a new CBByteArray sub reference in CBBlockHeadersSerialise for the header number %u", x);
return 0;
}
if (! CBBlockSerialise(self->blockHeaders[x], false, force)) { // false for no transactions.
CBLogError("CBBlockHeaders cannot be serialised because of an error with the CBBlock number %u.", x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->blockHeaders[y])->bytes);
return 0;
}
}else{
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->blockHeaders[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->blockHeaders[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->blockHeaders[x])->bytes->length;
}
// Ensure length is correct
bytes->length = cursor;
// Is now serialised
CBGetMessage(self)->serialised = true;
return cursor;
}
uint32_t CBNetworkAddressListSerialise(CBNetworkAddressList * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (! bytes) {
CBLogError("Attempting to serialise a CBNetworkAddress with no bytes.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->addrNum);
if (bytes->length < (26 + self->timeStamps * 4) * self->addrNum + num.size) {
CBLogError("Attempting to serialise a CBNetworkAddress without enough bytes.");
return 0;
}
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint8_t x = 0; x < num.val; x++) {
if (! CBGetMessage(self->addresses[x])->serialised // Serailise if not serialised yet.
// Serialise if force is true.
|| force
// If the data shares the same data as this address broadcast, re-serialise the address, in case it got overwritten.
|| CBGetMessage(self->addresses[x])->bytes->sharedData == bytes->sharedData
|| (CBGetMessage(self->addresses[x])->bytes->length != 26) ^ self->timeStamps) {
if (CBGetMessage(self->addresses[x])->serialised)
// Release old byte array
CBReleaseObject(CBGetMessage(self->addresses[x])->bytes);
CBGetMessage(self->addresses[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (! CBNetworkAddressSerialise(self->addresses[x], self->timeStamps)) {
CBLogError("CBNetworkAddress cannot be serialised because of an error with the CBNetworkAddress number %u.", x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->addresses[y])->bytes);
return 0;
}
}else{
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->addresses[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->addresses[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->addresses[x])->bytes->length;
}
// Change bytes length
bytes->length = cursor;
// Is now serialised
CBGetMessage(self)->serialised = true;
return cursor;
}
uint32_t CBBlockHeadersSerialise(CBBlockHeaders * self, bool force) {
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->logError("Attempting to serialise a CBBlockHeaders with no bytes.");
return 0;
}
if (bytes->length < 81 * self->headerNum) {
CBGetMessage(self)->logError("Attempting to deserialise a CBBlockHeaders with less bytes than minimally required.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->headerNum);
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint16_t x = 0; x < num.val; x++) {
if (force && CBGetMessage(self->blockHeaders[x])->serialised)
CBReleaseObject(CBGetMessage(self->blockHeaders[x])->bytes);
if (NOT CBGetMessage(self->blockHeaders[x])->serialised || force) {
CBGetMessage(self->blockHeaders[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (NOT CBGetMessage(self->blockHeaders[x])->bytes) {
CBGetMessage(self)->logError("Cannot create a new CBByteArray sub reference in CBBlockHeadersSerialise for the header number %u",x);
return 0;
}
uint32_t len = CBBlockSerialise(self->blockHeaders[x], false, force); // false for no transactions.
if (NOT len) {
CBGetMessage(self)->logError("CBBlockHeaders cannot be serialised because of an error with the CBBlock number %u.",x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->blockHeaders[y])->bytes);
return 0;
}
CBGetMessage(self->blockHeaders[x])->bytes->length = len;
} else if (CBGetMessage(self->blockHeaders[x])->bytes->sharedData != bytes->sharedData) {
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->blockHeaders[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->blockHeaders[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->blockHeaders[x])->bytes->length;
}
CBGetMessage(self)->serialised = true;
return cursor;
}
uint32_t CBInventoryBroadcastSerialise(CBInventoryBroadcast * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_NULL_BYTES,"Attempting to serialise a CBInventoryBroadcast with no bytes.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->itemNum);
if (bytes->length < num.size + 36 * self->itemNum) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_DESERIALISATION_BAD_BYTES,"Attempting to deserialise a CBInventoryBroadcast with less bytes than required.");
return 0;
}
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint16_t x = 0; x < num.val; x++) {
if (force && CBGetMessage(self->items[x])->serialised)
CBReleaseObject(CBGetMessage(self->items[x])->bytes);
if (NOT CBGetMessage(self->items[x])->serialised || force) {
CBGetMessage(self->items[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (NOT CBGetMessage(self->items[x])->bytes) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_INIT_FAIL,"Cannot create a new CBByteArray sub reference in CBInventoryBroadcastSerialise");
return 0;
}
uint32_t len = CBInventoryItemSerialise(self->items[x]);
if (NOT len) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_BYTES,"CBInventoryBroadcast cannot be serialised because of an error with the CBInventoryItem number %u.",x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->items[y])->bytes);
return 0;
}
CBGetMessage(self->items[x])->bytes->length = len;
}else if (CBGetMessage(self->items[x])->bytes->sharedData != bytes->sharedData){
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->items[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->items[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->items[x])->bytes->length;
}
CBGetMessage(self)->serialised = true;
return cursor;
}
uint16_t CBChainDescriptorSerialise(CBChainDescriptor * self){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (! bytes) {
CBLogError("Attempting to serialise a CBChainDescriptor with no bytes.");
return 0;
}
CBVarInt hashNum = CBVarIntFromUInt64(self->hashNum);
if (bytes->length < hashNum.size + self->hashNum * 32) {
CBLogError("Attempting to serialise a CBChainDescriptor with less bytes than required for the hashes.");
return 0;
}
CBVarIntEncode(bytes, 0, hashNum);
uint16_t cursor = hashNum.size;
for (uint16_t x = 0; x < self->hashNum; x++) {
CBByteArrayCopyByteArray(bytes, cursor, self->hashes[x]);
CBByteArrayChangeReference(self->hashes[x], bytes, cursor);
cursor += 32;
}
CBGetMessage(self)->serialised = true;
return cursor;
}
uint32_t CBAddressBroadcastSerialise(CBAddressBroadcast * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_NULL_BYTES,"Attempting to serialise a CBAddressBroadcast with no bytes.");
return 0;
}
if (bytes->length < (26 + self->timeStamps * 4) * self->addrNum) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_BYTES,"Attempting to serialise a CBAddressBroadcast without enough bytes.");
return 0;
}
CBVarInt num = CBVarIntFromUInt64(self->addrNum);
CBVarIntEncode(bytes, 0, num);
uint16_t cursor = num.size;
for (uint8_t x = 0; x < num.val; x++) {
if (force && CBGetMessage(self->addresses[x])->serialised)
CBReleaseObject(CBGetMessage(self->addresses[x])->bytes);
if (NOT CBGetMessage(self->addresses[x])->serialised || force) {
CBGetMessage(self->addresses[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
uint32_t len = CBNetworkAddressSerialise(self->addresses[x],self->timeStamps);
if (NOT len) {
CBGetMessage(self)->onErrorReceived(CB_ERROR_MESSAGE_SERIALISATION_BAD_BYTES,"CBAddressBroadcast cannot be serialised because of an error with the CBNetworkAddress number %u.",x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint8_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->addresses[y])->bytes);
return 0;
}
CBGetMessage(self->addresses[x])->bytes->length = len;
}else if (CBGetMessage(self->addresses[x])->bytes->sharedData != bytes->sharedData){
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->addresses[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->addresses[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->addresses[x])->bytes->length;
}
CBGetMessage(self)->serialised = true;
return cursor;
}
uint32_t CBTransactionSerialise(CBTransaction * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBLogError("Attempting to serialise a CBTransaction with no bytes. Now that you think about it, that was a bit stupid wasn't it?");
return 0;
}
if (NOT self->inputNum || NOT self->outputNum) {
CBLogError("Attempting to serialise a CBTransaction with an empty output or input list.");
return 0;
}
CBVarInt inputNum = CBVarIntFromUInt64(self->inputNum);
CBVarInt outputNum = CBVarIntFromUInt64(self->outputNum);
uint32_t cursor = 4 + inputNum.size;
if (bytes->length < cursor + 5) {
CBLogError("Attempting to serialise a CBTransaction with less bytes than required. %i < %i\n", bytes->length, cursor + 5);
return 0;
}
// Serialise data into the CBByteArray and rereference objects to this CBByteArray to save memory.
CBByteArraySetInt32(bytes, 0, self->version);
CBVarIntEncode(bytes, 4, inputNum);
for (uint32_t x = 0; x < self->inputNum; x++) {
if (NOT CBGetMessage(self->inputs[x])->serialised // Serailise if not serialised yet.
// Serialise if force is true.
|| force
// If the data shares the same data as this transaction, re-serialise the input, in case it got overwritten.
|| CBGetMessage(self->inputs[x])->bytes->sharedData == bytes->sharedData) {
if (CBGetMessage(self->inputs[x])->serialised)
// Release old byte array
CBReleaseObject(CBGetMessage(self->inputs[x])->bytes);
CBGetMessage(self->inputs[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (NOT CBGetMessage(self->inputs[x])->bytes) {
CBLogError("Cannot create a new CBByteArray sub reference in CBTransactionSerialise for input number %u", x);
return 0;
}
if (NOT CBTransactionInputSerialise(self->inputs[x])) {
CBLogError("CBTransaction cannot be serialised because of an error with the input number %u.", x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint32_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->inputs[y])->bytes);
return 0;
}
}else{
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->inputs[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->inputs[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->inputs[x])->bytes->length;
}
if (bytes->length < cursor + 5) { // Check room for output number and lockTime.
CBLogError("Attempting to serialise a CBTransaction with less bytes than required for output number and the lockTime. %i < %i", bytes->length, cursor + 5);
return 0;
}
CBVarIntEncode(bytes, cursor, outputNum);
cursor += outputNum.size;
for (uint32_t x = 0; x < self->outputNum; x++) {
if (NOT CBGetMessage(self->outputs[x])->serialised // Serailise if not serialised yet.
// Serialise if force is true.
|| force
// If the data shares the same data as this transaction, re-serialise the output, in case it got overwritten.
|| CBGetMessage(self->outputs[x])->bytes->sharedData == bytes->sharedData) {
if (CBGetMessage(self->outputs[x])->serialised)
// Release old byte array
CBReleaseObject(CBGetMessage(self->outputs[x])->bytes);
CBGetMessage(self->outputs[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (NOT CBGetMessage(self->outputs[x])->bytes) {
CBLogError("Cannot create a new CBByteArray sub reference in CBTransactionSerialise for output number %u", x);
return 0;
}
if (NOT CBTransactionOutputSerialise(self->outputs[x])) {
CBLogError("CBTransaction cannot be serialised because of an error with the output number %u.", x);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint32_t y = 0; y < self->inputNum; y++)
CBReleaseObject(CBGetMessage(self->inputs[y])->bytes);
for (uint32_t y = 0; y < x + 1; y++)
CBReleaseObject(CBGetMessage(self->outputs[y])->bytes);
return 0;
}
}else{
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->outputs[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->outputs[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->outputs[x])->bytes->length;
}
if (bytes->length < cursor + 4) { // Check room for lockTime.
CBLogError("Attempting to serialise a CBTransaction with less bytes than required for the lockTime. %i < %i\n", bytes->length, cursor + 4);
// Release CBByteArray objects to avoid problems overwritting pointer without release, if serialisation is tried again.
for (uint32_t y = 0; y < self->inputNum; y++)
CBReleaseObject(CBGetMessage(self->inputs[y])->bytes);
for (uint32_t y = 0; y < self->outputNum; y++)
CBReleaseObject(CBGetMessage(self->outputs[y])->bytes);
return 0;
}
CBByteArraySetInt32(bytes, cursor, self->lockTime);
// Ensure length is correct
bytes->length = cursor + 4;
// Is serialised
CBGetMessage(self)->serialised = true;
// Make the hash not set for this serialisation.
self->hashSet = false;
return cursor + 4;
}
CBGetHashReturn CBTransactionGetInputHashForSignature(void * vself, CBByteArray * prevOutSubScript, uint32_t input, CBSignType signType, uint8_t * hash){
CBTransaction * self= vself;
if (self->inputNum < input + 1) {
CBLogError("Receiving transaction hash to sign cannot be done for because the input index goes past the number of inputs.");
return CB_TX_HASH_BAD;
}
uint8_t last5Bits = (signType & 0x1f); // For some reason this is what the C++ client does.
CBVarInt prevOutputSubScriptVarInt = CBVarIntFromUInt64(prevOutSubScript->length);
uint32_t sizeOfData = 12 + prevOutSubScript->length + prevOutputSubScriptVarInt.size; // Version, lock time and the sign type make up 12 bytes.
if (signType & CB_SIGHASH_ANYONECANPAY) {
sizeOfData += 41; // Just this one input. 32 bytes for outPointerHash, 4 for outPointerIndex, 4 for sequence and one for the *inputNum* var int
}else{
sizeOfData += CBVarIntSizeOf(self->inputNum) + self->inputNum * 41 - 1; // All inputs with 1 byte var int except one.
}
if (last5Bits == CB_SIGHASH_NONE){
sizeOfData++; // Just for the CBVarInt and no outputs.
}else if ((signType & 0x1f) == CB_SIGHASH_SINGLE){
if (self->outputNum < input + 1) {
CBLogError("Receiving transaction hash to sign cannot be done for CB_SIGHASH_SINGLE because there are not enough outputs.");
return CB_TX_HASH_BAD;
}
sizeOfData += CBVarIntSizeOf(input + 1) + input * 9; // For outputs up to the input index
// The size for the output at the input index.
uint32_t len = CBGetByteArray(self->outputs[input]->scriptObject)->length;
sizeOfData += 8 + CBVarIntSizeOf(len) + len;
}else{ // All outputs. Default to SIGHASH_ALL
sizeOfData += CBVarIntSizeOf(self->outputNum);
for (uint32_t x = 0; x < self->outputNum; x++) {
uint32_t len = CBGetByteArray(self->outputs[x]->scriptObject)->length;
sizeOfData += 8 + CBVarIntSizeOf(len) + len;
}
}
CBByteArray * data = CBNewByteArrayOfSize(sizeOfData);
if (NOT data)
return CB_TX_HASH_ERR;
CBByteArraySetInt32(data, 0, self->version);
// Copy input data. Scripts are not copied for the inputs.
uint32_t cursor;
if (signType & CB_SIGHASH_ANYONECANPAY) {
CBVarIntEncode(data, 4, CBVarIntFromUInt64(1)); // Only the input the signature is for.
CBByteArrayCopyByteArray(data, 5, self->inputs[input]->prevOut.hash);
CBByteArraySetInt32(data, 37, self->inputs[input]->prevOut.index);
// Add prevOutSubScript
CBVarIntEncode(data, 41, prevOutputSubScriptVarInt);
cursor = 41 + prevOutputSubScriptVarInt.size;
CBByteArrayCopyByteArray(data, cursor, prevOutSubScript);
cursor += prevOutSubScript->length;
CBByteArraySetInt32(data, cursor, self->inputs[input]->sequence);
cursor += 4;
}else{
CBVarInt inputNum = CBVarIntFromUInt64(self->inputNum);
CBVarIntEncode(data, 4, inputNum);
cursor = 4 + inputNum.size;
for (uint32_t x = 0; x < self->inputNum; x++) {
CBByteArrayCopyByteArray(data, cursor, self->inputs[x]->prevOut.hash);
cursor += 32;
CBByteArraySetInt32(data, cursor, self->inputs[x]->prevOut.index);
cursor += 4;
// Add prevOutSubScript if the input is for the signature.
if (x == input) {
CBVarIntEncode(data, cursor, prevOutputSubScriptVarInt);
cursor += prevOutputSubScriptVarInt.size;
CBByteArrayCopyByteArray(data, cursor, prevOutSubScript);
cursor += prevOutSubScript->length;
}else{
CBVarIntEncode(data, cursor, CBVarIntFromUInt64(0));
cursor++;
}
if ((signType == CB_SIGHASH_NONE || signType == CB_SIGHASH_SINGLE) && x != input) {
CBByteArraySetInt32(data, cursor, 0);
}
else // SIGHASH_ALL or input index for signing sequence
CBByteArraySetInt32(data, cursor, self->inputs[x]->sequence);
cursor += 4;
}
}
// Copy output data
if (last5Bits == CB_SIGHASH_NONE){
CBVarInt varInt = CBVarIntFromUInt64(0);
CBVarIntEncode(data, cursor, varInt);
cursor++;
}else if (last5Bits == CB_SIGHASH_SINGLE){
CBVarInt varInt = CBVarIntFromUInt64(input + 1);
CBVarIntEncode(data, cursor, varInt);
cursor += varInt.size;
for (uint32_t x = 0; x < input; x++) {
CBByteArraySetInt64(data, cursor, CB_OUTPUT_VALUE_MINUS_ONE);
cursor += 8;
CBVarIntEncode(data, cursor, CBVarIntFromUInt64(0));
cursor++;
}
CBByteArraySetInt64(data, cursor, self->outputs[input]->value);
cursor += 8;
varInt = CBVarIntFromUInt64(CBGetByteArray(self->outputs[input]->scriptObject)->length);
CBVarIntEncode(data, cursor, varInt);
cursor += varInt.size;
CBByteArrayCopyByteArray(data, cursor, CBGetByteArray(self->outputs[input]->scriptObject));
cursor += varInt.val;
}else{ // SIGHASH_ALL
CBVarInt varInt = CBVarIntFromUInt64(self->outputNum);
CBVarIntEncode(data, cursor, varInt);
cursor += varInt.size;
for (uint32_t x = 0; x < self->outputNum; x++) {
CBByteArraySetInt64(data, cursor, self->outputs[x]->value);
cursor += 8;
varInt = CBVarIntFromUInt64(CBGetByteArray(self->outputs[x]->scriptObject)->length);
CBVarIntEncode(data, cursor, varInt);
cursor += varInt.size;
CBByteArrayCopyByteArray(data, cursor, CBGetByteArray(self->outputs[x]->scriptObject));
cursor += varInt.val;
}
}
// Set lockTime
CBByteArraySetInt32(data, cursor, self->lockTime);
CBByteArraySetInt32(data, cursor + 4, signType);
assert(sizeOfData == cursor + 8); // Must always be like this
uint8_t firstHash[32];
CBSha256(CBByteArrayGetData(data), sizeOfData, firstHash);
CBSha256(firstHash, 32, hash);
return CB_TX_HASH_OK;
}
uint32_t CBVersionSerialise(CBVersion * self, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBGetMessage(self)->logError("Attempting to serialise a CBVersion with no bytes.");
return 0;
}
if (bytes->length < 46) {
CBGetMessage(self)->logError("Attempting to serialise a CBVersion with less than 46 bytes.");
return 0;
}
CBByteArraySetInt32(bytes, 0, self->version);
CBByteArraySetInt64(bytes, 4, self->services);
CBByteArraySetInt64(bytes, 12, self->time);
if (force && CBGetMessage(self->addRecv)->serialised)
CBReleaseObject(CBGetMessage(self->addRecv)->bytes);
if (NOT CBGetMessage(self->addRecv)->serialised || force) {
CBGetMessage(self->addRecv)->bytes = CBByteArraySubReference(bytes, 20, bytes->length-20);
if (NOT CBGetMessage(self->addRecv)->bytes) {
CBGetMessage(self)->logError("Cannot create a new CBByteArray sub reference in CBVersionSerialise for receiving address.");
return 0;
}
uint32_t len = CBNetworkAddressSerialise(self->addRecv,false);
if (NOT len) {
CBGetMessage(self)->logError("CBVersion cannot be serialised because of an error with the receiving CBNetworkAddress");
// Release bytes to avoid problems overwritting pointer without release, if serialisation is tried again.
CBReleaseObject(CBGetMessage(self->addRecv)->bytes);
return 0;
}
CBGetMessage(self->addRecv)->bytes->length = len;
}else if (CBGetMessage(self->addRecv)->bytes->sharedData != bytes->sharedData){
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, 20, CBGetMessage(self->addRecv)->bytes);
CBByteArrayChangeReference(CBGetMessage(self->addRecv)->bytes, bytes, 20);
}
if (self->version >= 106) {
if (bytes->length < 85) {
CBGetMessage(self)->logError("Attempting to serialise a CBVersion with less than 85 bytes required.");
return 0;
}
if (self->userAgent->length > 400) {
CBGetMessage(self)->logError("Attempting to serialise a CBVersion with a userAgent over 400 bytes.");
return 0;
}
if (force && CBGetMessage(self->addSource)->serialised)
CBReleaseObject(CBGetMessage(self->addSource)->bytes);
if (NOT CBGetMessage(self->addSource)->serialised || force) {
CBGetMessage(self->addSource)->bytes = CBByteArraySubReference(bytes, 46, bytes->length-46);
if (NOT CBGetMessage(self->addSource)->bytes) {
CBGetMessage(self)->logError("Cannot create a new CBByteArray sub reference in CBVersionSerialise for source address.");
return 0;
}
uint32_t len = CBNetworkAddressSerialise(self->addSource,false);
if (NOT len) {
CBGetMessage(self)->logError("CBVersion cannot be serialised because of an error with the source CBNetworkAddress");
// Release bytes to avoid problems overwritting pointer without release, if serialisation is tried again.
CBReleaseObject(CBGetMessage(self->addSource)->bytes);
return 0;
}
CBGetMessage(self->addSource)->bytes->length = len;
}else if (CBGetMessage(self->addSource)->bytes->sharedData != bytes->sharedData){
// Move serialsed data to one location
CBByteArrayCopyByteArray(bytes, 46, CBGetMessage(self->addSource)->bytes);
CBByteArrayChangeReference(CBGetMessage(self->addSource)->bytes, bytes, 46);
}
CBByteArraySetInt64(bytes, 72, self->nonce);
CBVarInt varInt = CBVarIntFromUInt64(self->userAgent->length);
CBVarIntEncode(bytes, 80, varInt);
if (bytes->length < 84 + varInt.size + varInt.val) {
CBGetMessage(self)->logError("Attempting to deserialise a CBVersion without enough space to cover the userAgent and block height.");
return 0;
}
CBByteArrayCopyByteArray(bytes, 80 + varInt.size,self->userAgent);
CBByteArrayChangeReference(self->userAgent,bytes,80 + varInt.size);
CBByteArraySetInt32(bytes, 80 + varInt.size + (uint32_t)varInt.val, self->blockHeight);
CBGetMessage(self)->serialised = true;
return 84 + varInt.size + (uint32_t)varInt.val;
}else{
// Not the further message.
CBGetMessage(self)->serialised = true;
return 46;
}
}
uint32_t CBBlockSerialise(CBBlock * self, bool transactions, bool force){
CBByteArray * bytes = CBGetMessage(self)->bytes;
if (NOT bytes) {
CBLogError("Attempting to serialise a CBBlock with no bytes.");
return 0;
}
CBVarInt transactionNum = CBVarIntFromUInt64(self->transactionNum);
uint32_t cursor = 80 + transactionNum.size;
if (bytes->length < cursor + 1) {
CBLogError("Attempting to serialise a CBBlock with less bytes than required for the header, transaction number var int and at least a null byte. %i < %i", bytes->length, cursor + 1);
return 0;
}
// Do header
CBByteArraySetInt32(bytes, 0, self->version);
CBByteArrayCopyByteArray(bytes, 4, self->prevBlockHash);
CBByteArrayChangeReference(self->prevBlockHash, bytes, 4);
CBByteArrayCopyByteArray(bytes, 36, self->merkleRoot);
CBByteArrayChangeReference(self->merkleRoot, bytes, 36);
CBByteArraySetInt32(bytes, 68, self->time);
CBByteArraySetInt32(bytes, 72, self->target);
CBByteArraySetInt32(bytes, 76, self->nonce);
// Do Transactions
CBVarIntEncode(bytes, 80, transactionNum);
if (transactions) {
for (uint32_t x = 0; x < self->transactionNum; x++) {
if (NOT CBGetMessage(self->transactions[x])->serialised // Serailise if not serialised yet.
// Serialise if force is true.
|| force
// If the data shares the same data as this block, re-serialise the transaction, in case it got overwritten.
|| CBGetMessage(self->transactions[x])->bytes->sharedData == bytes->sharedData) {
if (CBGetMessage(self->transactions[x])->serialised)
// Release old byte array
CBReleaseObject(CBGetMessage(self->transactions[x])->bytes);
CBGetMessage(self->transactions[x])->bytes = CBByteArraySubReference(bytes, cursor, bytes->length-cursor);
if (NOT CBGetMessage(self->transactions[x])->bytes) {
CBLogError("Cannot create a new CBByteArray sub reference in CBBlockSerialise for the transaction number %u", x);
return 0;
}
if (NOT CBTransactionSerialise(self->transactions[x], force)) {
CBLogError("CBBlock cannot be serialised because of an error with the transaction number %u.", x);
return 0;
}
}else{
// Move serialsed data to one location
if (bytes->length < cursor + CBGetMessage(self->transactions[x])->bytes->length) {
CBLogError("CBBlock cannot be serialised because there was not enough bytes for the transaction number %u (%u < %u).", x, bytes->length, cursor + CBGetMessage(self->transactions[x])->bytes->length);
return 0;
}
CBByteArrayCopyByteArray(bytes, cursor, CBGetMessage(self->transactions[x])->bytes);
CBByteArrayChangeReference(CBGetMessage(self->transactions[x])->bytes, bytes, cursor);
}
cursor += CBGetMessage(self->transactions[x])->bytes->length;
}
}else{
// Add null byte since there are to be no transactions (header only).
CBByteArraySetByte(bytes, cursor, 0);
cursor++;
}
// Reset hash
self->hashSet = false;
// Ensure data length is correct.
bytes->length = cursor;
// Is now serialised.
CBGetMessage(self)->serialised = true;
return cursor;
}