| 62 | |
| 63 | template <typename Stream, typename Data> |
| 64 | bool DeserializeDB(Stream& stream, Data& data, bool fCheckSum = true) |
| 65 | { |
| 66 | try { |
| 67 | CHashVerifier<Stream> verifier(&stream); |
| 68 | // de-serialize file header (network specific magic number) and .. |
| 69 | unsigned char pchMsgTmp[4]; |
| 70 | verifier >> pchMsgTmp; |
| 71 | // ... verify the network matches ours |
| 72 | if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp))) |
| 73 | return error("%s: Invalid network magic number", __func__); |
| 74 | |
| 75 | // de-serialize data |
| 76 | verifier >> data; |
| 77 | |
| 78 | // verify checksum |
| 79 | if (fCheckSum) { |
| 80 | uint256 hashTmp; |
| 81 | stream >> hashTmp; |
| 82 | if (hashTmp != verifier.GetHash()) { |
| 83 | return error("%s: Checksum mismatch, data corrupted", __func__); |
| 84 | } |
| 85 | } |
| 86 | } |
| 87 | catch (const std::exception& e) { |
| 88 | return error("%s: Deserialize or I/O error - %s", __func__, e.what()); |
| 89 | } |
| 90 | |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | template <typename Data> |
| 95 | bool DeserializeFileDB(const fs::path& path, Data& data) |