public static int onConnected(IntPtr handle, ref FSP_SocketParameter context)
{
Console.WriteLine("Connected, handle = {0:X}", handle);
if (handle == (IntPtr)0)
{
Console.WriteLine("Connection failed.");
return(-1);
}
if (context.len <= 0)
{
goto l_nokey;
}
// well, how to marshal a complicate, mixed string and byte array?
byte[] original = new byte[1024];
Marshal.Copy(context.welcome, original, 0, context.len);
// we knew there must be a welcome message.
int mLen = Array.IndexOf <byte>(original, 0);
if (mLen++ <= 0)
{
goto l_nokey;
}
// Now mLen is the number of bytes occupied by the message, including the termination '\0'
Console.WriteLine("--- Welcome message from remote peer --- ");
Console.WriteLine(">>>");
Console.WriteLine(Encoding.UTF8.GetString(original, 0, mLen));
//TODO! .GetEncoding("GBK")? ASCII!?
Console.WriteLine("<<<");
if (mLen >= context.len)
{
goto l_nokey;
}
Array.Copy(original, mLen, bufPeersKey, 0, FSPAPI.CRYPTO_NACL_KEYBYTES);
FSPAPI.InstallAuthenticKey(handle, bufSharedKey, FSPAPI.CRYPTO_NACL_KEYBYTES, Int32.MaxValue, FlagEndOfMessage.NOT_END_ANYWAY);
FSPAPI.FSPControl(handle
, FSP_ControlCode.FSP_SET_CALLBACK_ON_ERROR
, Marshal.GetFunctionPointerForDelegate(new NotifyOrReturn(onError2)));
FSPAPI.WriteTo(handle, bufPublicKey, FSPAPI.CRYPTO_NACL_KEYBYTES
, FlagEndOfMessage.END_OF_MESSAGE
, new NotifyOrReturn(onPublicKeySent));
return(0);
l_nokey:
Console.Write("To read the filename directly...\t");
if (FSPAPI.ReadFrom(handle, fileName, fileName.Length, new NotifyOrReturn(onReceiveFileNameReturn)) < 0)
{
finished = true;
return(-1); // to dispose/reject the connection
}
return(0);
}
public static int onPublicKeySent(IntPtr handle, FSP_ServiceCode code, int result)
{
Console.WriteLine("onPublicKeySent: Handle = {0:X}, code = {1}, result = {2}", handle, code, result);
if (result < 0)
{
FSPAPI.Dispose(handle);
finished = true;
return(-1);
}
Console.Write("To read the filename directly...\t");
if (FSPAPI.ReadFrom(handle, fileName, fileName.Length, new NotifyOrReturn(onReceiveFileNameReturn)) < 0)
{
FSPAPI.Dispose(handle);
finished = true;
return(-1);
}
return(0);
}