std::vector System::GetNetworkInfo()

in nodemanager/utils/System.cpp [20:91]

• 59 lines of code
• 13 McCabe index (conditional complexity)

std::vector<System::NetInfo> System::GetNetworkInfo()
{
    std::vector<System::NetInfo> info;

    std::string rawData;

    int ret = System::ExecuteCommandOut(rawData, "ip", "addr");
    if (ret == 0)
    {
        std::string name, mac, ipV4, ipV6;
        bool isIB = false;

        std::istringstream iss(rawData);
        std::string line;
        while (getline(iss, line))
        {
            std::istringstream lineStream(line);
            if (line.empty()) continue;

            if (line[0] >= '0' && line[0] <= '9')
            {
                if (!name.empty())
                {
                    info.push_back(System::NetInfo(name, mac, ipV4, ipV6, isIB));
                    name.clear();
                    mac.clear();
                    ipV4.clear();
                    ipV6.clear();
                    isIB = false;
                }

                lineStream >> name >> name;

                if (name.length() > 0)
                {
                    name = name.substr(0, name.length() - 1);
                }

                // temporarily identify IB
                if (name == "ib0")
                {
                    isIB = true;
                }

                continue;
            }

            std::string head, value;
            lineStream >> head >> value;

            if (head.compare(0, 4, "link") == 0)
            {
                mac = value;
            }
            else if (head == "inet")
            {
                ipV4 = value;
            }
            else if (head == "inet6")
            {
                ipV6 = value;
            }
        }

        if (!name.empty())
        {
            info.push_back(System::NetInfo(name, mac, ipV4, ipV6, isIB));
        }
    }

    return std::move(info);
}