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+CONCEPT
+        mccp - The Mud Client Compression Protocol
+
+DESCRIPTION
+        Informations and code taken from the MCCP Homepage
+        http://www.randomly.org/projects/MCCP/
+
+        MCCP is implemented as a Telnet option [RFC854, RFC855]. The server
+        and client negotiate the use of MCCP as they would any other telnet
+        option. Once agreement has been reached on the use of the option,
+        option subnegotiation is used to determine acceptable compression
+        methods to use, and to indicate the start of a compressed data stream. 
+
+        If the driver is compiled with MCCP Support there is a
+        define __MCCP__.
+
+        The driver currently supports both versions of mccp. If your mud
+        has a H_NOECHO hook you have to find out if the client supports
+        mccp. Without this hook you still have to start neogotiation.
+
+        All sub-negotiation is done by the efuns start_mccp_compress() and
+        end_mccp_compress() whether you have this hook or not.
+
+        Notice: when the client uses compressions all binary_message calls
+                are executed with flag=3. This is because writing to the
+                socket would disturb zlib stream.
+        
+        mccp-efuns:
+
+          start_mccp_compress(int telopt) (only needed with H_NOECHO)
+          end_mccp_compress(int telopt)   (only needed with H_NOECHO)
+          query_mccp(object player)
+          query_mccp_stats(object player)
+
+       Initiating MCCP without H_NOECHO hook:
+
+          if(!query_mccp()){
+            binary_message(({ IAC, WILL, TELOPT_COMPRESS2 }),1)
+            binary_message(({ IAC, WILL, TELOPT_COMPRESS }),1)
+          }
+
+          the driver will parse the clients answers and start compression.
+          (The connection might already be compressed, because although the
+           documentation says clients should not negotiate from themselfes,
+           zmud e.g. does.)
+
+          You can start and stop compression manually by efuns
+          when you are sure client supports compression :)
+
+
+       Initiating MCCP compression with H_NOECHO hook:
+
+          If your mudlib uses the H_NOECHO driver-hook you decided to do
+          all the negotiation by yourself:
+
+          Server Commands
+          IAC WILL COMPRESS indicates the sender supports version 1 of the
+                            protocol, and is willing to compress data it sends. 
+
+          IAC WILL COMPRESS2 indicates the sender supports version 2, and is
+                             willing to compress data it sends. 
+
+          IAC WONT COMPRESS indicates the sender refuses to compress data using
+                            version 1. 
+
+          IAC WONT COMPRESS2 indicates the sender refuses to compress data
+                             using version 2. 
+
+          Client Commands
+          IAC DO COMPRESS indicates the sender supports version 1 of the
+                          protocol, and is willing to decompress data received. 
+
+          IAC DO COMPRESS2 indicates the sender supports version 2 or above,
+                           and is willing to decompress data received. 
+
+          IAC DONT COMPRESS indicates the sender refuses to support version 1.
+                            If compression was previously negotiated and is
+                            currently being used, the server should terminate
+                            compression. 
+
+          IAC DONT COMPRESS2 indicates the sender refuses to support version 2.
+                             If compression was previously negotiated and is
+                             currently being used, the server should terminate
+                             compression
+
+          After you found out whether the client supports mccp or not you can
+          start compression with start_mccp_compress(TELOPT_COMPRESS2) or
+          start_mccp_compress(TELOPT_COMPRESS). ( you could start it without
+          checking but some players would protest :) )
+
+AUTHOR
+        Bastian Hoyer (dafire@ff.mud.de) (some text taken from project page)
+
+HISTORY
+        Added in LDMud 3.3.447, backported to LDMud 3.2.10.
+
+SEE ALSO
+        start_mccp_compress(E), end_mccp_compress(E), query_mccp(E),
+        query_mccp_stats(object player)
+