: fd(-1)

{

#ifdef HTTPS_USE_WINSOCK

static bool wsaInit = false;

if (!wsaInit)

{

WSADATA data;

WSAStartup(MAKEWORD(2, 2), &data);

}

#endif // HTTPS_USE_WINSOCK

{

addrinfo hints;

std::memset(&hints, 0, sizeof(hints));

hints.ai_flags = hints.ai_protocol = 0;

hints.ai_family = AF_UNSPEC;

hints.ai_socktype = SOCK_STREAM;

addrinfo *addrs = nullptr;

std::string portString = std::to_string(port);

getaddrinfo(hostname.c_str(), portString.c_str(), &hints, &addrs);

// Try all addresses returned

bool connected = false;

for (addrinfo *addr = addrs; !connected && addr; addr = addr->ai_next)

{

fd = socket(addr->ai_family, SOCK_STREAM, 0);

connected = ::connect(fd, addr->ai_addr, addr->ai_addrlen) == 0;

if (!connected)

::close(fd);

}

freeaddrinfo(addrs);

if (!connected)

{

fd = -1;

return false;

}

return true;

{

auto read = ::recv(fd, buffer, size, 0);

if (read < 0)

read = 0;

return static_cast<size_t>(read);

{

auto written = ::send(fd, buffer, size, 0);

if (written < 0)

written = 0;

return static_cast<size_t>(written);

{

::close(fd);

fd = -1;