Function Lookup

src/netbase.cpp:191–207

}

std::vector<CService> Lookup(const std::string& name, uint16_t portDefault, bool fAllowLookup, unsigned int nMaxSolutions, DNSLookupFn dns_lookup_function)
{
    if (name.empty() || !ContainsNoNUL(name)) {
        return {};
    }
    uint16_t port{portDefault};
    std::string hostname;
    SplitHostPort(name, port, hostname);

    const std::vector<CNetAddr> addresses{LookupIntern(hostname, nMaxSolutions, fAllowLookup, dns_lookup_function)};
    if (addresses.empty()) return {};
    std::vector<CService> services;
    services.reserve(addresses.size());
    for (const auto& addr : addresses)
        services.emplace_back(addr, port);
    return services;
}

std::optional<CService> Lookup(const std::string& name, uint16_t portDefault, bool fAllowLookup, DNSLookupFn dns_lookup_function)
{