Function GetIPv6SuffixCrc

library/cpp/netliba/v12/local_ip_params.cpp:5–10

namespace NNetliba_v12 {
    static ui32 GetIPv6SuffixCrc(const sockaddr_in6& addr) {
        TIPv6AddrUnion a;
        a.Addr = addr.sin6_addr;
        const ui64 suffix = a.Addr64[1];
        return (suffix & 0xffffffffll) + (suffix >> 32);
    }

    ui32 CalcAddressChecksum(const sockaddr_in6& addr) {
        Y_ASSERT(addr.sin6_family == AF_INET6);