Send Steam Query

[MrLucky]

I'm busy with an app that can get some information about a CS:S server.

 

http://www.int64.org/docs/gamestat-protocols/source.html

 

Here's a page about the protocol. But, my question is: how can I send the query?

 

do I have to create a byte array with the query? or is there another way?

[Gill Bates]

Yeah, you will need to send the raw bytes for the query. Since they give the query structure in hex you will simply need to convert it to standard bytes.

 

Here's a method I came up with to do that:

private byte[] GetBytes(string hex)
{
   System.Collections.Generic.List<byte> bytes = new List<byte>();

   foreach (string hexChunk in System.Text.RegularExpressions.Regex.Split(hex.Trim(), @"\s+"))
   {
       bytes.Add((byte)Int32.Parse(hexChunk, System.Globalization.NumberStyles.HexNumber));
   }

   return bytes.ToArray();
}

Example call:

foreach (byte b in GetBytes("FF FF FF FF 55"))
{
   System.Diagnostics.Debug.WriteLine(b);
}

Once you figure out the byte structure you can just hard code the queries like the following:

byte[] detailsQuery = new byte[] { 255, 255, 255, 255, 54 };
byte[] rulesQuery = new byte[] { 255, 255, 255, 255, 86 };
byte[] playersQuery = new byte[] { 255, 255, 255, 255, 85 };

 

You can then just send the query like the following:

mySocket.Send(detailsQuery);

You will get back a stream of bytes that is structured as they described on that page. Reading it should be easy. The only tricky part will be the strings.