public unsafe IPAddress[] getaddrinfo(string hostName)
{
void *pinput = null;
addrinfo hint = new addrinfo();
hint.ai_family = 0;
hint.ai_flags = 2;
int result = getaddrinfo(hostName, null, (void *)(&hint), ref pinput);
int count = 0;
addrinfo *entry = (addrinfo *)pinput;
while (entry != null)
{
if (entry->ai_family == 2 || entry->ai_family == 10)
{
count++;
}
entry = (addrinfo *)entry->ai_next;
}
var addresses = new IPAddress[count];
entry = (addrinfo *)pinput;
count = 0;
while (entry != null)
{
if (entry->ai_family == 2)
{
addresses[count] = new IPAddress(new ReadOnlySpan <byte>(entry->ai_addr->data, 4));
count++;
}
else if (entry->ai_family == 10)
{
addresses[count] = new IPAddress(new ReadOnlySpan <byte>(entry->ai_addr->data + 4, 16));
//addresses[count].ScopeId = entry->ifa_addr->scope_id;
count++;
}
entry = (addrinfo *)entry->ai_next;
}
freeifaddrs(pinput);
return(addresses);
}
public Ipv4Address resolve(string host)
{
Debug.Assert(dispatcher != null);
if (dispatcher.interrupted())
{
throw InterruptedException();
}
addrinfo hints = new addrinfo(0, AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, null, null, null);
addrinfo addressInfos;
int result = getaddrinfo(host, null, hints, addressInfos);
if (result != 0)
{
throw new System.Exception("Ipv4Resolver::resolve, getaddrinfo failed, " + errorMessage(result));
}
uint count = 0;
for (addrinfo *addressInfo = addressInfos; addressInfo != null; addressInfo = addressInfo.ai_next)
{
++count;
}
std::mt19937 generator = new std::mt19937(std::random_device()());
uint index = std::uniform_int_distribution <uint>(0, count - 1)(generator);
addrinfo addressInfo = addressInfos;
for (uint i = 0; i < index; ++i)
{
addressInfo = addressInfo.ai_next;
}
//C++ TO C# CONVERTER TODO TASK: There is no equivalent to 'reinterpret_cast' in C#:
Ipv4Address address = new Ipv4Address(ntohl(reinterpret_cast <sockaddr_in>(addressInfo.ai_addr).sin_addr.s_addr));
freeaddrinfo(addressInfo);
return(address);
}
static extern unsafe int uv_getaddrinfo(IntPtr loopHandle, IntPtr handle, uv_getaddrinfo_cb cb, string node, string service, addrinfo *hints);
public static extern unsafe int getaddrinfo(string node, string service, addrinfo *hints, addrinfo **res);
public static extern unsafe void freeaddrinfo(addrinfo *res);
