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disabled opcodes fixes.

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This commit is contained in:
Christopher Jeffrey 2016-04-17 08:45:37 -07:00
parent 0a621238ba
commit 4960e48b48
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GPG Key ID: 8962AB9DE6666BBD
1 changed files with 17 additions and 17 deletions
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34
lib/bcoin/script.js
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@ -1529,33 +1529,33 @@ Script.prototype.interpret = function interpret(stack, flags, tx, index, version
case opcodes.OP_SUBSTR: {
if (stack.length < 3)
throw new ScriptError('Stack too small.', op, ip);
v1 = Script.num(stack.pop(), flags).toNumber(); // end
v3 = Script.num(stack.pop(), flags).toNumber(); // end
v2 = Script.num(stack.pop(), flags).toNumber(); // begin
v3 = stack.pop(); // string
if (v2 < 0 || v1 < v2)
v1 = stack.pop(); // string
if (v2 < 0 || v3 < v2)
throw new ScriptError('String begin and end out of range.', op, ip);
if (v2 > v3.length)
v2 = v3.length;
if (v1 > v3.length)
v1 = v3.length;
stack.push(v3.slice(v2, v1));
if (v2 > v1.length)
v2 = v1.length;
if (v3 > v1.length)
v3 = v1.length;
stack.push(v1.slice(v2, v3));
break;
}
case opcodes.OP_LEFT:
case opcodes.OP_RIGHT: {
if (stack.length < 2)
throw new ScriptError('Stack too small.', op, ip);
v1 = Script.num(stack.pop(), flags).toNumber(); // size
v2 = stack.pop(); // string
if (v1 < 0)
v2 = Script.num(stack.pop(), flags).toNumber(); // size
v1 = stack.pop(); // string
if (v2 < 0)
throw new ScriptError('String size is negative.', op, ip);
if (v1 > v2.length)
v1 = v2.length;
if (v2 > v1.length)
v2 = v1.length;
if (op === opcodes.OP_LEFT)
v2 = v2.slice(0, v1);
v1 = v1.slice(0, v2);
else
v2 = v2.slice(v2.length - v1);
stack.push(v2);
v1 = v1.slice(v1.length - v2);
stack.push(v1);
break;
}
case opcodes.OP_INVERT: {
@ -1563,7 +1563,7 @@ Script.prototype.interpret = function interpret(stack, flags, tx, index, version
throw new ScriptError('Stack too small.', op, ip);
val = utils.slice(stack.pop());
for (i = 0; i < val.length; i++)
val[i] = ~val[i];
val[i] = ~val[i] & 0xff;
stack.push(val);
break;
}