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txscript: Remove unused isMultiSig function.

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Dave Collins 2019-03-13 01:11:37 -05:00 committed by Olaoluwa Osuntokun
parent 71bf51e82c
commit 6e86f0d09b
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GPG key ID: 3BBD59E99B280306
1 changed files with 0 additions and 36 deletions
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36
txscript/standard.go
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@ -214,42 +214,6 @@ func isPubkeyHash(pops []parsedOpcode) bool {
}
// isMultiSig returns true if the passed script is a multisig transaction, false
// otherwise.
//
// DEPECATED. Use isMultisigScript or extractMultisigScriptDetails instead.
func isMultiSig(pops []parsedOpcode) bool {
// The absolute minimum is 1 pubkey:
// OP_0/OP_1-16 <pubkey> OP_1 OP_CHECKMULTISIG
l := len(pops)
if l < 4 {
return false
}
if !isSmallInt(pops[0].opcode.value) {
return false
}
if !isSmallInt(pops[l-2].opcode.value) {
return false
}
if pops[l-1].opcode.value != OP_CHECKMULTISIG {
return false
}
// Verify the number of pubkeys specified matches the actual number
// of pubkeys provided.
if l-2-1 != asSmallInt(pops[l-2].opcode.value) {
return false
}
for _, pop := range pops[1 : l-2] {
// Valid pubkeys are either 33 or 65 bytes.
if len(pop.data) != 33 && len(pop.data) != 65 {
return false
}
}
return true
}
// multiSigDetails houses details extracted from a standard multisig script.
type multiSigDetails struct {
requiredSigs int