private void DeserializeAddrInfos(IVirtualMemoryManager memory, ulong address, ulong size)
{
ulong endAddress = address + size;
while (address < endAddress)
{
AddrInfoSerializedHeader header = memory.Read <AddrInfoSerializedHeader>(address);
if (header.Magic != SfdnsresContants.AddrInfoMagic)
{
break;
}
address += (ulong)Unsafe.SizeOf <AddrInfoSerializedHeader>() + header.AddressLength;
// ai_canonname
string canonname = string.Empty;
while (true)
{
byte chr = memory.Read <byte>(address++);
if (chr == 0)
{
break;
}
canonname += (char)chr;
}
}
}
private static int SerializeAddrInfos(ServiceCtx context, ulong responseBufferPosition, ulong responseBufferSize, IPHostEntry hostEntry, int port)
{
ulong originalBufferPosition = responseBufferPosition;
ulong bufferPosition = originalBufferPosition;
byte[] hostName = Encoding.ASCII.GetBytes(hostEntry.HostName + '\0');
using (WritableRegion region = context.Memory.GetWritableRegion(responseBufferPosition, (int)responseBufferSize))
{
Span <byte> data = region.Memory.Span;
for (int i = 0; i < hostEntry.AddressList.Length; i++)
{
IPAddress ip = hostEntry.AddressList[i];
if (ip.AddressFamily != AddressFamily.InterNetwork)
{
continue;
}
// NOTE: 0 = Any
AddrInfoSerializedHeader header = new AddrInfoSerializedHeader(ip, 0);
AddrInfo4 addr = new AddrInfo4(ip, (short)port);
AddrInfoSerialized info = new AddrInfoSerialized(header, addr, null, hostEntry.HostName);
data = info.Write(data);
}
uint sentinel = 0;
MemoryMarshal.Write(data, ref sentinel);
data = data[sizeof(uint)..];
private static void DeserializeAddrInfos(IVirtualMemoryManager memory, ulong address, ulong size)
{
ulong endAddress = address + size;
while (address < endAddress)
{
AddrInfoSerializedHeader header = memory.Read <AddrInfoSerializedHeader>(address);
if (header.Magic != SfdnsresContants.AddrInfoMagic)
{
break;
}
address += (ulong)Unsafe.SizeOf <AddrInfoSerializedHeader>() + header.AddressLength;
// ai_canonname
string canonname = MemoryHelper.ReadAsciiString(memory, address);
}
}
private ulong SerializeAddrInfos(ServiceCtx context, long responseBufferPosition, long responseBufferSize, IPHostEntry hostEntry, int port)
{
ulong originalBufferPosition = (ulong)responseBufferPosition;
ulong bufferPosition = originalBufferPosition;
string hostName = hostEntry.HostName + '\0';
for (int i = 0; i < hostEntry.AddressList.Length; i++)
{
IPAddress ip = hostEntry.AddressList[i];
if (ip.AddressFamily != AddressFamily.InterNetwork)
{
continue;
}
AddrInfoSerializedHeader header = new AddrInfoSerializedHeader(ip, 0);
// NOTE: 0 = Any
context.Memory.Write(bufferPosition, header);
bufferPosition += (ulong)Unsafe.SizeOf <AddrInfoSerializedHeader>();
// addrinfo_in
context.Memory.Write(bufferPosition, new AddrInfo4(ip, (short)port));
bufferPosition += header.AddressLength;
// ai_canonname
context.Memory.Write(bufferPosition, Encoding.ASCII.GetBytes(hostName));
bufferPosition += (ulong)hostName.Length;
}
// Termination zero value.
context.Memory.Write(bufferPosition, 0);
bufferPosition += 4;
return(bufferPosition - originalBufferPosition);
}
