Make client report a newer version number to the server than 2011-07-31 does and make the server enforce it

CMakeLists.txt

@@ -9,7 +9,7 @@ project(minetest)
 
 set(VERSION_MAJOR 0)
 set(VERSION_MINOR 2)
-set(VERSION_PATCH 20110922)
+set(VERSION_PATCH 20110922_1)
 set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 
 # Configuration options

doc/changelog.txt

@@ -3,6 +3,9 @@ Minetest-c55 changelog
 This should contain all the major changes.
 For minor stuff, refer to the commit log of the repository.
 
+0.2.20110922_1:
+- Make client report a newer version number to the server than 2011-07-31 does and make server disallow old clients
+
 0.2.20110922:
 - Map is saved in an SQLite database file (by Queatz)
 - Ladders (MarkTraceur)

src/client.cpp

@@ -431,7 +431,7 @@ void Client::step(float dtime)
 			snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());
 			
 			// This should be incremented in each version
-			writeU16(&data[51], 1);
+			writeU16(&data[51], 2);
 
 			// Send as unreliable
 			Send(0, data, false);

src/server.cpp

@@ -2011,6 +2011,14 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			return;
 		}
 		
+		/* Uhh... this should actually be a warning but let's do it like this */
+		if(net_proto_version < 2)
+		{
+			SendAccessDenied(m_con, peer_id,
+					L"Your client is too old. Please upgrade.");
+			return;
+		}
+
 		/*
 			Set up player
 		*/