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Fix ScriptNum

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kinoshitajona 2019-11-14 15:07:15 +09:00
parent a6f5dcf7f0
commit 5bd3786f94
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GPG key ID: B256185D3A971908
1 changed files with 28 additions and 6 deletions
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34
js/coin.js
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@ -156,7 +156,7 @@
}
var s = coinjs.script();
s.writeBytes(coinjs.numToByteArray(checklocktimeverify));
s.writeBytes(coinjs.numToScriptNumBytes(checklocktimeverify));
s.writeOp(177);//OP_CHECKLOCKTIMEVERIFY
s.writeOp(117);//OP_DROP
s.writeBytes(Crypto.util.hexToBytes(pubkey));
@ -1924,12 +1924,34 @@
}
}
coinjs.numToByteArray = function(num) {
if (num <= 256) {
return [num];
} else {
return [num % 256].concat(coinjs.numToByteArray(Math.floor(num / 256)));
function scriptNumSize(i) {
return i > 0x7fffffff ? 5
: i > 0x7fffff ? 4
: i > 0x7fff ? 3
: i > 0x7f ? 2
: i > 0x00 ? 1
: 0;
}
coinjs.numToScriptNumBytes = function(_number) {
if (_number <= 16 && _number >= 1 && _number === Math.floor(_number)) {
return [0x50 + _number] // OP_1 to OP_16 for minimal encoding
}
var value = Math.abs(_number);
var size = scriptNumSize(value);
var result = [];
for (var i = 0; i < size; ++i) {
result.push(0);
}
var negative = _number < 0;
for (i = 0; i < size; ++i) {
result[i] = value & 0xff;
value = Math.floor(value / 256);
}
if (negative) {
result[size - 1] |= 0x80;
}
return result;
}
coinjs.numToVarInt = function(num) {