Task ProcessClientAsync(TdsContext tdsContext, CancellationTokenSource cancelTokenSource)
{
try
{
var client = tdsContext.Client;
while (!client.IsDead)
{
var command = client.GetGenericQuery();
tdsContext.Request = TdsRequest.Parse(command);
using (tdsContext.Response = new TdsResponse(client))
_handler(tdsContext);
client.FlushPacket();
}
}
catch (Exception e)
{
Console.WriteLine($"Exception: {e.Message}");
if (e.InnerException != null)
{
Console.WriteLine($"Inner exception: {e.InnerException.Message}");
}
Console.WriteLine("Connection closed.");
}
return(Task.CompletedTask);
}
Task <TdsContext> ProcessLoginAsync(TdsSocket client, CancellationTokenSource cancelTokenSource)
{
TdsContext tdsContext = null;
try
{
var login = client.AllocReadLogin(0x702) ?? throw new Exception("Error reading login");
if (login.UserName != "guest" && login.Password != "sybase")
{
return(Task.FromResult(tdsContext));
}
client.OutFlag = TDS_PACKET_TYPE.TDS_REPLY;
//client.EnvChange(P.TDS_ENV_DATABASE, "master", "pubs2");
//client.SendMsg(5701, 2, 10, "Changed database context to 'pubs2'.", "JDBC", "ZZZZZ", 1);
if (!login.Value.suppress_language)
{
//client.EnvChange(P.TDS_ENV_LANG, null, "us_english");
//client.SendMsg(5703, 1, 10, "Changed language setting to 'us_english'.", "JDBC", "ZZZZZ", 1);
}
//client.EnvChange(P.TDS_ENV_PACKSIZE, null, "512");
client.SendLoginAck("Microsoft SQL Server", G.TDS_MS_VER(10, 0, 6000));
if (G.IS_TDS50(client.Conn.Value))
{
client.SendCapabilitiesToken();
}
client.SendDoneToken(0, 1);
client.FlushPacket();
return(Task.FromResult(new TdsContext(client, cancelTokenSource.Token)));
}
catch (Exception e)
{
Console.WriteLine($"Exception: {e.Message}");
if (e.InnerException != null)
{
Console.WriteLine($"Inner exception: {e.InnerException.Message}");
}
return(Task.FromResult(tdsContext));
}
}