mirror of
https://github.com/dashpay/dash.git
synced 2024-12-25 12:02:48 +01:00
1904ed51d1
cb0b7125c14bf97394bd8b43bf2abfb943bb1cf9 doc: libbitcoinconsensus: add missing error code description, fix NBitcoin link (Sebastian Falbesoner) Pull request description: This PR improves the libbitcoinconsensus description in `shared-libraries.md` in two ways: * adds the missing error code description for `bitcoinconsensus_ERR_INVALID_FLAGS` (introduced by commit5ca8ef299a, PR #8976) * updates and fixes the link to the NBitcoin implementation (introduced by commit3361edd010, PR #6430) * the owner of the `NBitcoin` github repository changed from `NicolasDorier` to `MetacoSA` (redirection still worked though) * instead of dynamically referring to a file in master with a fixed line number (which is obviously always quickly outdated), use a permalink with a file numbers area ACKs for top commit: MarcoFalke: cr ACK cb0b7125c14bf97394bd8b43bf2abfb943bb1cf9 harding: Code (documentation) review ACK cb0b7125c14bf97394bd8b43bf2abfb943bb1cf9. Text is clear and seems accurate, and the link checks out. Tree-SHA512: 9840458db6fb40e71c9852104aefcec5abbaf5054c6123701181dd477cea8c81d3647f376b67692159adf577c9b6305b05b784728bf9f14a753fab5898075a4e
43 lines
2.5 KiB
Markdown
43 lines
2.5 KiB
Markdown
Shared Libraries
|
|
================
|
|
|
|
## dashconsensus
|
|
|
|
The purpose of this library is to make the verification functionality that is critical to Dash's consensus available to other applications, e.g. to language bindings.
|
|
|
|
### API
|
|
|
|
The interface is defined in the C header `bitcoinconsensus.h` located in `src/script/bitcoinconsensus.h`.
|
|
|
|
#### Version
|
|
|
|
`dashconsensus_version` returns an `unsigned int` with the API version *(currently at an experimental `0`)*.
|
|
|
|
#### Script Validation
|
|
|
|
`dashconsensus_verify_script` returns an `int` with the status of the verification. It will be `1` if the input script correctly spends the previous output `scriptPubKey`.
|
|
|
|
##### Parameters
|
|
- `const unsigned char *scriptPubKey` - The previous output script that encumbers spending.
|
|
- `unsigned int scriptPubKeyLen` - The number of bytes for the `scriptPubKey`.
|
|
- `const unsigned char *txTo` - The transaction with the input that is spending the previous output.
|
|
- `unsigned int txToLen` - The number of bytes for the `txTo`.
|
|
- `unsigned int nIn` - The index of the input in `txTo` that spends the `scriptPubKey`.
|
|
- `unsigned int flags` - The script validation flags *(see below)*.
|
|
- `dashconsensus_error* err` - Will have the error/success code for the operation *(see below)*.
|
|
|
|
##### Script Flags
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_NONE`
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_P2SH` - Evaluate P2SH ([BIP16](https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki)) subscripts
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_DERSIG` - Enforce strict DER ([BIP66](https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki)) compliance
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY` - Enforce NULLDUMMY ([BIP147](https://github.com/bitcoin/bips/blob/master/bip-0147.mediawiki))
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY` - Enable CHECKLOCKTIMEVERIFY ([BIP65](https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki))
|
|
- `dashconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY` - Enable CHECKSEQUENCEVERIFY ([BIP112](https://github.com/bitcoin/bips/blob/master/bip-0112.mediawiki))
|
|
|
|
##### Errors
|
|
- `dashconsensus_ERR_OK` - No errors with input parameters *(see the return value of `dashconsensus_verify_script` for the verification status)*
|
|
- `dashconsensus_ERR_TX_INDEX` - An invalid index for `txTo`
|
|
- `dashconsensus_ERR_TX_SIZE_MISMATCH` - `txToLen` did not match with the size of `txTo`
|
|
- `dashconsensus_ERR_DESERIALIZE` - An error deserializing `txTo`
|
|
- `dashconsensus_ERR_INVALID_FLAGS` - Script verification `flags` are invalid (i.e. not part of the libconsensus interface)
|