Differential D1606 Diff 4539 src/script/interpreter.cpp

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src/script/interpreter.cpp

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	static bool IsOpcodeDisabled(opcodetype opcode, uint32_t flags) {			static bool IsOpcodeDisabled(opcodetype opcode, uint32_t flags) {
	bool fEnabledOpCodesMagnetic =			bool fEnabledOpCodesMagnetic =
	(flags & SCRIPT_ENABLE_MAGNETIC_OPCODES) != 0;			(flags & SCRIPT_ENABLE_MAGNETIC_OPCODES) != 0;

	if (fEnabledOpCodesMagnetic) {			if (fEnabledOpCodesMagnetic) {
	switch (opcode) {			switch (opcode) {
	case OP_INVERT:			case OP_INVERT:
	return true;			return false;

	case OP_MUL:			case OP_MUL:
	return true;			return true;

	case OP_LSHIFT:			case OP_LSHIFT:
	return true;			return true;

	case OP_RSHIFT:			case OP_RSHIFT:
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	// The resulting number must be a valid number.			// The resulting number must be a valid number.
	if (!CScriptNum::IsMinimallyEncoded(n)) {			if (!CScriptNum::IsMinimallyEncoded(n)) {
	return set_error(serror,			return set_error(serror,
	SCRIPT_ERR_INVALID_NUMBER_RANGE);			SCRIPT_ERR_INVALID_NUMBER_RANGE);
	}			}
	} break;			} break;

				case OP_INVERT: {
				// (x -- out)
				if (stack.size() < 1) {
				return set_error(
				serror, SCRIPT_ERR_INVALID_STACK_OPERATION);
				}

				valtype &x = stacktop(-1);
				for (size_t i = 0; i < x.size(); i++) {
				x[i] = ~x[i];
				}
				} break;

	default:			default:
	return set_error(serror, SCRIPT_ERR_BAD_OPCODE);			return set_error(serror, SCRIPT_ERR_BAD_OPCODE);
	}			}
	}			}

	// Size limits			// Size limits
	if (stack.size() + altstack.size() > 1000) {			if (stack.size() + altstack.size() > 1000) {
	return set_error(serror, SCRIPT_ERR_STACK_SIZE);			return set_error(serror, SCRIPT_ERR_STACK_SIZE);
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