btc_bool btc_tx_in_deserialize(btc_tx_in* tx_in, struct const_buffer* buf)
{
deser_u256(tx_in->prevout.hash, buf);
if (!deser_u32(&tx_in->prevout.n, buf))
return false;
if (!deser_varstr(&tx_in->script_sig, buf))
return false;
if (!deser_u32(&tx_in->sequence, buf))
return false;
return true;
}
bool deser_peer(unsigned int protover,
struct peer *peer, struct const_buffer *buf)
{
peer_free(peer);
if (!deser_bp_addr(protover, &peer->addr, buf)) return false;
if (!deser_s64(&peer->last_ok, buf)) return false;
if (!deser_u32(&peer->n_ok, buf)) return false;
if (!deser_s64(&peer->last_fail, buf)) return false;
if (!deser_u32(&peer->n_fail, buf)) return false;
return true;
}
static bool deser_wallet_account(struct wallet *wlt, struct const_buffer *buf)
{
struct wallet_account *acct;
acct = calloc(1, sizeof(*acct));
if (!acct)
return false;
if (!deser_varstr(&acct->name, buf) ||
!deser_u32(&acct->acct_idx, buf) ||
!deser_u32(&acct->next_key_idx, buf))
goto err_out;
parr_add(wlt->accounts, acct);
return true;
err_out:
account_free(acct);
return false;
}
bool deser_msg_version(struct msg_version *mv, struct const_buffer *buf)
{
memset(mv, 0, sizeof(*mv));
if (!deser_u32(&mv->nVersion, buf)) return false;
if (mv->nVersion == 10300)
mv->nVersion = 300;
if (!deser_u64(&mv->nServices, buf)) return false;
if (!deser_s64(&mv->nTime, buf)) return false;
if (!deser_bp_addr(MIN_PROTO_VERSION, &mv->addrTo, buf)) return false;
if (mv->nVersion >= 106) {
if (!deser_bp_addr(MIN_PROTO_VERSION, &mv->addrFrom, buf)) return false;
if (!deser_u64(&mv->nonce, buf)) return false;
if (!deser_str(mv->strSubVer, buf, sizeof(mv->strSubVer)))
return false;
if (mv->nVersion >= 209)
if (!deser_u32(&mv->nStartingHeight, buf)) return false;
}
return true;
}
bool bsp_getop(struct bscript_op *op, struct bscript_parser *bp)
{
if (bp->buf->len == 0)
return false; /* EOF */
unsigned char opcode;
if (!deser_bytes(&opcode, bp->buf, 1))
goto err_out;
op->op = opcode;
uint32_t data_len;
if (opcode < OP_PUSHDATA1)
data_len = opcode;
else if (opcode == OP_PUSHDATA1) {
uint8_t v8;
if (!deser_bytes(&v8, bp->buf, 1))
goto err_out;
data_len = v8;
}
else if (opcode == OP_PUSHDATA2) {
uint16_t v16;
if (!deser_u16(&v16, bp->buf))
goto err_out;
data_len = v16;
}
else if (opcode == OP_PUSHDATA4) {
uint32_t v32;
if (!deser_u32(&v32, bp->buf))
goto err_out;
data_len = v32;
} else {
assert(!is_bsp_pushdata(opcode));
op->data.p = NULL;
op->data.len = 0;
return true;
}
op->data.p = bp->buf->p;
op->data.len = data_len;
if (!deser_skip(bp->buf, data_len))
goto err_out;
return true;
err_out:
bp->error = true;
return false;
}
int btc_tx_deserialize(const unsigned char* tx_serialized, size_t inlen, btc_tx* tx)
{
struct const_buffer buf = {tx_serialized, inlen};
//tx needs to be initialized
deser_s32(&tx->version, &buf);
uint32_t vlen;
if (!deser_varlen(&vlen, &buf))
return false;
unsigned int i;
for (i = 0; i < vlen; i++) {
btc_tx_in* tx_in = btc_tx_in_new();
if (!btc_tx_in_deserialize(tx_in, &buf)) {
free(tx_in);
}
vector_add(tx->vin, tx_in);
}
if (!deser_varlen(&vlen, &buf))
return false;
for (i = 0; i < vlen; i++) {
btc_tx_out* tx_out = btc_tx_out_new();
if (!btc_tx_out_deserialize(tx_out, &buf)) {
free(tx_out);
}
vector_add(tx->vout, tx_out);
}
if (!deser_u32(&tx->locktime, &buf))
return false;
return true;
}
void test_serialize()
{
char hex0[] = "28969cdfa74a12c82f3bad960b0b000aca2ac329deea5c2328ebc6f2ba9802c1";
char hex1[] = "28969cdfa74a12c82f3bad960b0b000aca2ac329deea5c2328ebc6f2ba9802c2";
char hex2[] = "28969cdfa74a12c82f3bad960b0b000aca2ac329deea5c2328ebc6f2ba9802c3";
uint8_t* hash0 = malloc(32);
uint8_t* hash1 = malloc(32);
uint8_t* hash2 = malloc(32);
memcpy(hash0, utils_hex_to_uint8(hex0), 32);
memcpy(hash1, utils_hex_to_uint8(hex1), 32);
memcpy(hash2, utils_hex_to_uint8(hex2), 32);
vector* vec = vector_new(5, free);
vector_add(vec, hash0);
vector_add(vec, hash1);
vector_add(vec, hash2);
cstring* s = cstr_new_sz(200);
ser_u256_vector(s, vec);
vector_free(vec, true);
vector* vec2 = vector_new(0, NULL);
struct const_buffer buf = {s->str, s->len};
deser_u256_vector(&vec2, &buf);
vector_free(vec2, true);
cstr_free(s, true);
cstring* s2 = cstr_new_sz(200);
ser_u16(s2, 0xAAFF);
ser_u32(s2, 0xDDBBAAFF);
ser_u64(s2, 0x99FF99FFDDBBAAFF);
ser_varlen(s2, 10);
ser_varlen(s2, 1000);
ser_varlen(s2, 100000000);
ser_str(s2, "test", 4);
cstring* s3 = cstr_new("foo");
ser_varstr(s2, s3);
cstr_free(s3, true);
// ser_varlen(s2, (uint64_t)0x9999999999999999); // uint64 varlen is not supported right now
struct const_buffer buf2 = {s2->str, s2->len};
uint16_t num0;
deser_u16(&num0, &buf2);
assert(num0 == 43775); //0xAAFF
uint32_t num1;
deser_u32(&num1, &buf2);
assert(num1 == 3720063743); //0xDDBBAAFF
uint64_t num2;
deser_u64(&num2, &buf2);
assert(num2 == 0x99FF99FFDDBBAAFF); //0x99FF99FFDDBBAAFF
uint32_t num3;
deser_varlen(&num3, &buf2);
assert(num3 == 10);
deser_varlen(&num3, &buf2);
assert(num3 == 1000);
deser_varlen(&num3, &buf2);
assert(num3 == 100000000);
char strbuf[255];
deser_str(strbuf, &buf2, 255);
assert(strncmp(strbuf, "test", 4) == 0);
cstring* deser_test = cstr_new_sz(0);
deser_varstr(&deser_test, &buf2);
assert(strncmp(deser_test->str, "foo", 3) == 0);
cstr_free(deser_test, true);
cstr_free(s2, true);
}
