Function LookupIntern

src/netbase.cpp:67–112

}

bool static LookupIntern(const char* pszName, vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup) {
    vIP.clear();

    {
        CNetAddr addr;
        if (addr.SetSpecial(string(pszName))) {
            vIP.push_back(addr);
            return true;
        }
    }

    struct addrinfo aiHint;
    memset(&aiHint, 0, sizeof(struct addrinfo));

    aiHint.ai_socktype = SOCK_STREAM;
    aiHint.ai_protocol = IPPROTO_TCP;
    aiHint.ai_family   = AF_UNSPEC;
#ifdef WIN32
    aiHint.ai_flags = fAllowLookup ? 0 : AI_NUMERICHOST;
#else
    aiHint.ai_flags = fAllowLookup ? AI_ADDRCONFIG : AI_NUMERICHOST;
#endif
    struct addrinfo* aiRes = nullptr;
    int nErr               = getaddrinfo(pszName, nullptr, &aiHint, &aiRes);
    if (nErr)
        return false;

    struct addrinfo* aiTrav = aiRes;
    while (aiTrav != nullptr && (nMaxSolutions == 0 || vIP.size() < nMaxSolutions)) {
        if (aiTrav->ai_family == AF_INET) {
            assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in));
            vIP.push_back(CNetAddr(((struct sockaddr_in*)(aiTrav->ai_addr))->sin_addr));
        }

        if (aiTrav->ai_family == AF_INET6) {
            assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in6));
            vIP.push_back(CNetAddr(((struct sockaddr_in6*)(aiTrav->ai_addr))->sin6_addr));
        }

        aiTrav = aiTrav->ai_next;
    }

    freeaddrinfo(aiRes);

    return (vIP.size() > 0);
}

bool LookupHost(const char* pszName, vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup) {
    string strHost(pszName);