| 429 | } |
| 430 | |
| 431 | func (s *Script) ExtractDestinations() (sType int, addresses []*Address, sigCountRequired int, err error) { |
| 432 | sType, pubKeys, isStandard := s.IsStandardScriptPubKey() |
| 433 | if !isStandard { |
| 434 | return |
| 435 | } |
| 436 | if sType == ScriptPubkey { |
| 437 | sigCountRequired = 1 |
| 438 | addresses = make([]*Address, 0, 1) |
| 439 | address, err := AddressFromPublicKey(pubKeys[0]) |
| 440 | if err != nil { |
| 441 | return sType, nil, 0, err |
| 442 | } |
| 443 | addresses = append(addresses, address) |
| 444 | return sType, addresses, sigCountRequired, nil |
| 445 | } |
| 446 | if sType == ScriptPubkeyHash { |
| 447 | sigCountRequired = 1 |
| 448 | addresses = make([]*Address, 0, 1) |
| 449 | address, err := AddressFromHash160(pubKeys[0], AddressVerPubKey()) |
| 450 | if err != nil { |
| 451 | return sType, nil, 0, err |
| 452 | } |
| 453 | addresses = append(addresses, address) |
| 454 | return sType, addresses, sigCountRequired, nil |
| 455 | } |
| 456 | if sType == ScriptHash { |
| 457 | sigCountRequired = 1 |
| 458 | addresses = make([]*Address, 0, 1) |
| 459 | address, err := AddressFromHash160(pubKeys[0], AddressVerScript()) |
| 460 | if err != nil { |
| 461 | return sType, nil, 0, err |
| 462 | } |
| 463 | addresses = append(addresses, address) |
| 464 | return sType, addresses, sigCountRequired, nil |
| 465 | } |
| 466 | if sType == ScriptMultiSig { |
| 467 | sigCountRequired = int(pubKeys[0][0]) |
| 468 | addresses = make([]*Address, 0, len(pubKeys)-2) |
| 469 | for _, e := range pubKeys[1 : len(pubKeys)-1] { |
| 470 | address, err := AddressFromPublicKey(e) |
| 471 | if err != nil { |
| 472 | return sType, nil, 0, err |
| 473 | } |
| 474 | addresses = append(addresses, address) |
| 475 | } |
| 476 | return |
| 477 | } |
| 478 | return |
| 479 | } |
| 480 | |
| 481 | func (s *Script) IsCommitment(data []byte) bool { |
| 482 | if len(data) > 64 || s.Size() != len(data)+2 { |