62 lines
2.5 KiB
Go
62 lines
2.5 KiB
Go
// Package chaincfg defines chain configuration parameters.
|
|
//
|
|
// In addition to the main Bitcoin network, which is intended for the transfer
|
|
// of monetary value, there also exists two currently active standard networks:
|
|
// regression test and testnet (version 3). These networks are incompatible
|
|
// with each other (each sharing a different genesis block) and software should
|
|
// handle errors where input intended for one network is used on an application
|
|
// instance running on a different network.
|
|
//
|
|
// For library packages, chaincfg provides the ability to lookup chain
|
|
// parameters and encoding magics when passed a *Params. Older APIs not updated
|
|
// to the new convention of passing a *Params may lookup the parameters for a
|
|
// wire.BitcoinNet using ParamsForNet, but be aware that this usage is
|
|
// deprecated and will be removed from chaincfg in the future.
|
|
//
|
|
// For main packages, a (typically global) var may be assigned the address of
|
|
// one of the standard Param vars for use as the application's "active" network.
|
|
// When a network parameter is needed, it may then be looked up through this
|
|
// variable (either directly, or hidden in a library call).
|
|
//
|
|
// package main
|
|
//
|
|
// import (
|
|
// "flag"
|
|
// "fmt"
|
|
// "log"
|
|
//
|
|
// "github.com/btcsuite/btcutil"
|
|
// "github.com/btcsuite/btcd/chaincfg"
|
|
// )
|
|
//
|
|
// var testnet = flag.Bool("testnet", false, "operate on the testnet Bitcoin network")
|
|
//
|
|
// // By default (without -testnet), use mainnet.
|
|
// var chainParams = &chaincfg.MainNetParams
|
|
//
|
|
// func main() {
|
|
// flag.Parse()
|
|
//
|
|
// // Modify active network parameters if operating on testnet.
|
|
// if *testnet {
|
|
// chainParams = &chaincfg.TestNet3Params
|
|
// }
|
|
//
|
|
// // later...
|
|
//
|
|
// // Create and print new payment address, specific to the active network.
|
|
// pubKeyHash := make([]byte, 20)
|
|
// addr, err := btcutil.NewAddressPubKeyHash(pubKeyHash, chainParams)
|
|
// if err != nil {
|
|
// log.Fatal(err)
|
|
// }
|
|
// fmt.Println(addr)
|
|
// }
|
|
//
|
|
// If an application does not use one of the three standard Bitcoin networks,
|
|
// a new Params struct may be created which defines the parameters for the
|
|
// non-standard network. As a general rule of thumb, all network parameters
|
|
// should be unique to the network, but parameter collisions can still occur
|
|
// (unfortunately, this is the case with regtest and testnet3 sharing magics).
|
|
package chaincfg
|