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Golang Manager.ChainParams方法代码示例

本文整理汇总了Golang中github.com/btcsuite/btcwallet/waddrmgr.Manager.ChainParams方法的典型用法代码示例。如果您正苦于以下问题:Golang Manager.ChainParams方法的具体用法?Golang Manager.ChainParams怎么用?Golang Manager.ChainParams使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/btcsuite/btcwallet/waddrmgr.Manager的用法示例。


在下文中一共展示了Manager.ChainParams方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: signMultiSigUTXO

// signMultiSigUTXO signs the P2SH UTXO with the given index by constructing a
// script containing all given signatures plus the redeem (multi-sig) script. The
// redeem script is obtained by looking up the address of the given P2SH pkScript
// on the address manager.
// The order of the signatures must match that of the public keys in the multi-sig
// script as OP_CHECKMULTISIG expects that.
// This function must be called with the manager unlocked.
func signMultiSigUTXO(mgr *waddrmgr.Manager, tx *wire.MsgTx, idx int, pkScript []byte, sigs []RawSig) error {
	class, addresses, _, err := txscript.ExtractPkScriptAddrs(pkScript, mgr.ChainParams())
	if err != nil {
		return newError(ErrTxSigning, "unparseable pkScript", err)
	}
	if class != txscript.ScriptHashTy {
		return newError(ErrTxSigning, fmt.Sprintf("pkScript is not P2SH: %s", class), nil)
	}
	redeemScript, err := getRedeemScript(mgr, addresses[0].(*btcutil.AddressScriptHash))
	if err != nil {
		return newError(ErrTxSigning, "unable to retrieve redeem script", err)
	}

	class, _, nRequired, err := txscript.ExtractPkScriptAddrs(redeemScript, mgr.ChainParams())
	if err != nil {
		return newError(ErrTxSigning, "unparseable redeem script", err)
	}
	if class != txscript.MultiSigTy {
		return newError(ErrTxSigning, fmt.Sprintf("redeem script is not multi-sig: %v", class), nil)
	}
	if len(sigs) < nRequired {
		errStr := fmt.Sprintf("not enough signatures; need %d but got only %d", nRequired,
			len(sigs))
		return newError(ErrTxSigning, errStr, nil)
	}

	// Construct the unlocking script.
	// Start with an OP_0 because of the bug in bitcoind, then add nRequired signatures.
	unlockingScript := txscript.NewScriptBuilder().AddOp(txscript.OP_FALSE)
	for _, sig := range sigs[:nRequired] {
		unlockingScript.AddData(sig)
	}

	// Combine the redeem script and the unlocking script to get the actual signature script.
	sigScript := unlockingScript.AddData(redeemScript)
	script, err := sigScript.Script()
	if err != nil {
		return newError(ErrTxSigning, "error building sigscript", err)
	}
	tx.TxIn[idx].SignatureScript = script

	if err := validateSigScript(tx, idx, pkScript); err != nil {
		return err
	}
	return nil
}
开发者ID:justusranvier,项目名称:btcwallet,代码行数:53,代码来源:withdrawal.go


注:本文中的github.com/btcsuite/btcwallet/waddrmgr.Manager.ChainParams方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。