Cvar can ahve different flags:
Code:
#define FCVAR_ARCHIVE (1<<0) // set to cause it to be saved to vars.rc
#define FCVAR_USERINFO (1<<1) // changes the client's info string
#define FCVAR_SERVER (1<<2) // notifies players when changed
#define FCVAR_EXTDLL (1<<3) // defined by external DLL
#define FCVAR_CLIENTDLL (1<<4) // defined by the client dll
#define FCVAR_PROTECTED (1<<5) // It's a server cvar, but we don't send the data since it's a password, etc. Sends 1 if it's not bland/zero, 0 otherwise as value
#define FCVAR_SPONLY (1<<6) // This cvar cannot be changed by clients connected to a multiplayer server.
#define FCVAR_PRINTABLEONLY (1<<7) // This cvar's string cannot contain unprintable characters ( e.g., used for player name etc ).
#define FCVAR_UNLOGGED (1<<8) // If this is a FCVAR_SERVER, don't log changes to the log file / console if we are creating a log
FCVAR_PROTECTED and FCVAR_UNLOGGED could be of use.