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 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;
}
int main(){
unsigned int s = (unsigned int)time(NULL);
s = 1337544566;
printf("Session = %ui\n",s);
srand(s);
// Test genesis block
CBByteArray * genesisMerkleRoot = CBNewByteArrayWithDataCopy((uint8_t []){0x3B,0xA3,0xED,0xFD,0x7A,0x7B,0x12,0xB2,0x7A,0xC7,0x2C,0x3E,0x67,0x76,0x8F,0x61,0x7F,0xC8,0x1B,0xC3,0x88,0x8A,0x51,0x32,0x3A,0x9F,0xB8,0xAA,0x4B,0x1E,0x5E,0x4A}, 32, onErrorReceived);
CBByteArray * genesisInScript = CBNewByteArrayWithDataCopy((uint8_t [77]){0x04,0xFF,0xFF,0x00,0x1D,0x01,0x04,0x45,0x54,0x68,0x65,0x20,0x54,0x69,0x6D,0x65,0x73,0x20,0x30,0x33,0x2F,0x4A,0x61,0x6E,0x2F,0x32,0x30,0x30,0x39,0x20,0x43,0x68,0x61,0x6E,0x63,0x65,0x6C,0x6C,0x6F,0x72,0x20,0x6F,0x6E,0x20,0x62,0x72,0x69,0x6E,0x6B,0x20,0x6F,0x66,0x20,0x73,0x65,0x63,0x6F,0x6E,0x64,0x20,0x62,0x61,0x69,0x6C,0x6F,0x75,0x74,0x20,0x66,0x6F,0x72,0x20,0x62,0x61,0x6E,0x6B,0x73}, 77, onErrorReceived);
CBByteArray * genesisOutScript = CBNewByteArrayWithDataCopy((uint8_t [67]){0x41,0x04,0x67,0x8A,0xFD,0xB0,0xFE,0x55,0x48,0x27,0x19,0x67,0xF1,0xA6,0x71,0x30,0xB7,0x10,0x5C,0xD6,0xA8,0x28,0xE0,0x39,0x09,0xA6,0x79,0x62,0xE0,0xEA,0x1F,0x61,0xDE,0xB6,0x49,0xF6,0xBC,0x3F,0x4C,0xEF,0x38,0xC4,0xF3,0x55,0x04,0xE5,0x1E,0xC1,0x12,0xDE,0x5C,0x38,0x4D,0xF7,0xBA,0x0B,0x8D,0x57,0x8A,0x4C,0x70,0x2B,0x6B,0xF1,0x1D,0x5F,0xAC}, 67, onErrorReceived);
// Test hash
CBBlock * genesisBlock = CBNewBlockGenesis(onErrorReceived);
uint8_t calcHash[32];
CBBlockCalculateHash(genesisBlock,calcHash);
if(memcmp(genesisBlock->hash, calcHash,32)){
printf("GENESIS BLOCK HASH FAIL\n0x");
uint8_t * d = genesisBlock->hash;
for (int x = 0; x < 32; x++) {
printf("%.2X",d[x]);
}
printf("\n!=\n0x");
d = calcHash;
for (int x = 0; x < 32; x++) {
printf("%.2X",d[x]);
}
return 1;
}
// Test deserialised data
if (genesisBlock->version != 1) {
printf("GENESIS BLOCK VERSION FAIL\n");
return 1;
}
for (int x = 0; x < 32; x++) {
if(CBByteArrayGetByte(genesisBlock->prevBlockHash, x) != 0){
printf("GENESIS BLOCK PREV FAIL\n");
return 1;
}
}
if (CBByteArrayCompare(genesisBlock->merkleRoot, genesisMerkleRoot)) {
printf("GENESIS BLOCK MERKLE ROOT FAIL\n0x");
uint8_t * d = CBByteArrayGetData(genesisBlock->merkleRoot);
for (int x = 0; x < 32; x++) {
printf("%.2X",d[x]);
}
printf("\n!=\n0x");
d = CBByteArrayGetData(genesisMerkleRoot);
for (int x = 0; x < 32; x++) {
printf("%.2X",d[x]);
}
return 1;
}
if (genesisBlock->time != 1231006505) {
printf("GENESIS BLOCK TIME FAIL\n0x");
return 1;
}
if (genesisBlock->target != 0x1D00FFFF) {
printf("GENESIS BLOCK DIFFICULTY FAIL\n0x");
return 1;
}
if (genesisBlock->nonce != 2083236893) {
printf("GENESIS BLOCK DIFFICULTY FAIL\n0x");
return 1;
}
if (genesisBlock->transactionNum != 1) {
printf("GENESIS BLOCK TRANSACTION NUM FAIL\n0x");
return 1;
}
CBTransaction * genesisCoinBase = genesisBlock->transactions[0];
if (genesisCoinBase->inputNum != 1) {
printf("GENESIS BLOCK TRANSACTION INPUT NUM FAIL\n0x");
return 1;
}
if (genesisCoinBase->outputNum != 1) {
printf("GENESIS BLOCK TRANSACTION OUTPUT NUM FAIL\n0x");
return 1;
}
if (genesisCoinBase->version != 1) {
printf("GENESIS BLOCK TRANSACTION VERSION FAIL\n0x");
return 1;
}
if (genesisCoinBase->lockTime != 0) {
printf("GENESIS BLOCK TRANSACTION LOCK TIME FAIL\n0x");
return 1;
}
if (genesisCoinBase->inputs[0]->scriptObject->length != 0x4D) {
printf("GENESIS BLOCK TRANSACTION INPUT SCRIPT LENGTH FAIL\n0x");
return 1;
}
if (genesisCoinBase->outputs[0]->scriptObject->length != 0x43) {
printf("GENESIS BLOCK TRANSACTION OUTPUT SCRIPT LENGTH FAIL\n0x");
return 1;
}
for (int x = 0; x < 32; x++) {
if(CBByteArrayGetByte(genesisCoinBase->inputs[0]->prevOut.hash, x) != 0){
printf("GENESIS BLOCK TRANSACTION INPUT OUT POINTER HASH FAIL\n");
return 1;
}
}
if (genesisCoinBase->inputs[0]->prevOut.index != 0xFFFFFFFF) {
printf("GENESIS BLOCK TRANSACTION INPUT OUT POINTER INDEX FAIL\n0x");
return 1;
}
if (genesisCoinBase->inputs[0]->sequence != CB_TRANSACTION_INPUT_FINAL) {
printf("GENESIS BLOCK TRANSACTION INPUT SEQUENCE FAIL\n0x");
return 1;
}
if (CBByteArrayCompare(genesisCoinBase->inputs[0]->scriptObject, genesisInScript)) {
printf("GENESIS BLOCK IN SCRIPT FAIL\n0x");
uint8_t * d = CBByteArrayGetData(genesisCoinBase->inputs[0]->scriptObject);
for (int x = 0; x < genesisCoinBase->inputs[0]->scriptObject->length; x++) {
printf("%.2X",d[x]);
}
printf("\n!=\n0x");
d = CBByteArrayGetData(genesisInScript);
for (int x = 0; x < genesisInScript->length; x++) {
printf("%.2X",d[x]);
}
return 1;
}
if (genesisCoinBase->outputs[0]->value != 5000000000) {
printf("GENESIS BLOCK TRANSACTION OUTPUT VALUE FAIL\n0x");
return 1;
}
if (CBByteArrayCompare(genesisCoinBase->outputs[0]->scriptObject, genesisOutScript)) {
printf("GENESIS BLOCK OUT SCRIPT FAIL\n0x");
uint8_t * d = CBByteArrayGetData(genesisCoinBase->outputs[0]->scriptObject);
for (int x = 0; x < genesisCoinBase->outputs[0]->scriptObject->length; x++) {
printf("%.2X",d[x]);
}
printf("\n!=\n0x");
d = CBByteArrayGetData(genesisOutScript);
for (int x = 0; x < genesisOutScript->length; x++) {
printf("%.2X",d[x]);
}
return 1;
}
// Test serialisation into genesis block
CBBlock * block = CBNewBlock(onErrorReceived);
block->version = 1;
uint8_t * zeroHash = malloc(32);
memset(zeroHash, 0, 32);
block->prevBlockHash = CBNewByteArrayWithData(zeroHash, 32, onErrorReceived);
block->merkleRoot = genesisMerkleRoot;
block->target = 0x1D00FFFF;
block->time = 1231006505;
block->nonce = 2083236893;
block->transactionNum = 1;
block->transactions = malloc(sizeof(*block->transactions));
block->transactions[0] = CBNewTransaction(0, 1, onErrorReceived);
CBRetainObject(block->prevBlockHash); // Retain for the zero hash in the input
CBTransactionTakeInput(block->transactions[0], CBNewTransactionInput(genesisInScript, CB_TRANSACTION_INPUT_FINAL, block->prevBlockHash, 0xFFFFFFFF, onErrorReceived));
CBTransactionTakeOutput(block->transactions[0], CBNewTransactionOutput(5000000000, genesisOutScript, onErrorReceived));
CBGetMessage(block)->bytes = CBNewByteArrayOfSize(CBGetMessage(genesisBlock)->bytes->length, onErrorReceived);
CBBlockSerialise(block, true, true);
if (CBByteArrayCompare(CBGetMessage(block)->bytes, CBGetMessage(genesisBlock)->bytes)) {
printf("SERIALISATION TO GENESIS BLOCK FAIL\n0x");
uint8_t * d = CBByteArrayGetData(CBGetMessage(block)->bytes);
for (int x = 0; x < CBGetMessage(block)->bytes->length; x++) {
printf("%.2X",d[x]);
}
printf("\n!=\n0x");
d = CBByteArrayGetData(CBGetMessage(genesisBlock)->bytes);
for (int x = 0; x < CBGetMessage(genesisBlock)->bytes->length; x++) {
printf("%.2X",d[x]);
}
return 1;
}
CBReleaseObject(genesisBlock);
// ??? Add tests for non-genesis blocks
return 0;
}
