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#include "SockAddr.hh"

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#include <cstdlib>

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NetworkAddress::NetworkAddress (void) :

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    NetworkEndpoint(), address_length(0)

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{

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}

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NetworkAddress::NetworkAddress (const sockaddr *addr, socklen_t len) :

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    NetworkEndpoint(), address_length(0)

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{

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    // proxy to set_sockaddr

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    set_sockaddr(addr, len);

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}

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void NetworkAddress::set_sockaddr (const sockaddr *addr, socklen_t len) {

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    // invalid length?

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    if (len <= 0 || len > sizeof(address))

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        throw NetworkAddressError(*this, "set_sockaddr", "invalid sockaddr length");

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    // copy over to address

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    memcpy(&address, addr, len);

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    // set address_length

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    address_length = len;

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   // update

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   update();

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}

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void NetworkAddress::update (void) {

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    char host_buf[NI_MAXHOST], serv_buf[NI_MAXSERV];

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    int err;

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    // do getnameinfo()

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    if ((err = getnameinfo((sockaddr *) &address, address_length, host_buf, NI_MAXHOST, serv_buf, NI_MAXSERV, NI_NUMERICHOST | NI_NUMERICSERV)))

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        throw NetworkAddressError(*this, "getnameinfo", gai_strerror(err));

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    // update hostname + service

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    hostname = host_buf;

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    service = serv_buf;

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}

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addrinfo* NetworkAddress::get_addrinfo (int family, int socktype, int protocol, int flags) const {

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    (void) flags;

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    // get my family from address

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    int my_family = address.ss_family;

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    // right family?

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    if (family && family != my_family)

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        throw NetworkAddressError(*this, "fake_getaddrinfo", "ai_family mismatch");

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    // alllocate new addrinfo

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    addrinfo *r = new addrinfo;

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    // set it up

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    r->ai_flags = 0;

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    r->ai_family = my_family;

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    r->ai_socktype = socktype;

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    r->ai_protocol = protocol;

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    r->ai_addrlen = get_socklen();

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    r->ai_addr = const_cast<sockaddr *>(get_sockaddr());

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    r->ai_canonname = const_cast<char *>(get_hostname().c_str());

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    r->ai_next = NULL;

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    // return it

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    return r;

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}

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void NetworkAddress::free_addrinfo (addrinfo *info) const {

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    delete info;

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}