Function TryToBindAddresses

library/cpp/http/server/http.cpp:853–897

}

bool TryToBindAddresses(const THttpServerOptions& options, const std::function<void(TSocket)>* callbackOnBoundAddress) {
    THttpServerOptions::TBindAddresses addrs;
    try {
        options.BindAddresses(addrs);
    } catch (const std::exception&) {
        return false;
    }

    for (const auto& na : addrs) {
        for (TNetworkAddress::TIterator ai = na.Begin(); ai != na.End(); ++ai) {
            NAddr::TAddrInfo addr(&*ai);

            TSocket socket(::socket(addr.Addr()->sa_family, SOCK_STREAM, 0));

            if (socket == INVALID_SOCKET) {
                return false;
            }

            FixIPv6ListenSocket(socket);

            if (options.ReuseAddress) {
                int yes = 1;
                ::setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, (const char*)&yes, sizeof(yes));
            }

            if (options.ReusePort) {
                SetReusePort(socket, true);
            }

            if (::bind(socket, addr.Addr(), addr.Len()) == SOCKET_ERROR) {
                return false;
            }

            if (::listen(socket, options.ListenBacklog) == SOCKET_ERROR) {
                return false;
            }

            if (callbackOnBoundAddress != nullptr) {
                (*callbackOnBoundAddress)(socket);
            }
        }
    }

    return true;
}