sv_a2s_fix

It's a plugin for GMod 9 Lua502 Extensions - https://github.com/mykola2312/lua502

Yesterday, Valve has broke old master servers, so GMod 9 players can't see other servers with sv_master_legacy_mode 1, but sv_master_legacy_mode 0 is broken too. The bug happends when server with sv_master_legacy_mode 0 sends A2S_INFO to client, the Protocol Version is 17, but GMod 9 and Source Engine 2006 runs Protocol Version 7, so this plugin replaces Protocol Version and (!) calls lua callback to let you change the server info (like server name, map name, gamemode or even version).

Lua callbacks

function onServerQuery(info,addr)
  return info
end

The info is a table that holds original server information (you can see full list of fields via tprint),

To sends changed info, just return table. If don't want send anything, return nil. The addr is just ip of a client

function onClientResponse(addr,req)
	return true
end

This callback called when server tried to respond for connectionless packet. The req holds ID of a packet, (for example 0x49 for A2S_INFO)

Return true to allow response send, false to block.