59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
//
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// Keszitette: Toldi Balázs Ádám
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// Datum: 2020. 03. 14.
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//
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#include "Block.h"
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size_t Block::max_height = 0;
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void Block::calculateHash() {
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memset(hash, 0, SHA256_DIGEST_LENGTH);
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SHA256_CTX sha;
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SHA256_Init(&sha);
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SHA256_Update(&sha, this, sizeof(Block));
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unsigned char md[SHA256_DIGEST_LENGTH];
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SHA256_Final(md, &sha);
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std::stringstream ss;
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for (unsigned char i : md)
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ss << std::hex << (int) i;
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strcpy(hash,ss.str().c_str());
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}
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Block::Block(Transaction tr[], size_t count, const char *prev_hash) {
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if(count > MAX_BLOCK_TRANSACTION) throw "Too much!";
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memset(transactions,0, sizeof(Transaction)*MAX_BLOCK_TRANSACTION);
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for (int i = 0; i < count; ++i) {
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transactions[i] = tr[i];
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}
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if (strcmp(prev_hash, "") == 0)
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memset(this->prev_hash, 0, SHA256_CBLOCK+1);
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else
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strcpy(this->prev_hash, prev_hash);
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height = ++max_height;
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calculateHash();
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}
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Transaction &Transaction::operator=(Transaction &tr) {
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if(this != &tr){
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strcpy(sender,tr.getSender());
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strcpy(reciver,tr.getReciever());
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strcpy(hash,tr.getHash());
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amount = tr.getAmount();
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}
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return *this;
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}
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void Transaction::calculateHash() {
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memset(hash, 0, SHA256_DIGEST_LENGTH);
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SHA256_CTX sha;
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SHA256_Init(&sha);
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SHA256_Update(&sha, this, sizeof(Transaction));
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unsigned char md[SHA256_DIGEST_LENGTH];
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SHA256_Final(md, &sha);
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std::stringstream ss;
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for (unsigned char i : md)
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ss << std::hex << (int) i;
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strcpy(hash,ss.str().c_str());
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}
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