1.1 --- a/core/PlayerManager.cpp	Fri Jun 08 20:31:42 2012 -0400
     1.2 +++ b/core/PlayerManager.cpp	Sat Jun 09 20:00:55 2012 -0400
     1.3 @@ -884,6 +884,20 @@
     1.4  	const char *new_name = info ? info->GetName() : engine->GetClientConVarValue(client, "name");
     1.5  	const char *old_name = pPlayer->m_Name.c_str();
     1.6  
     1.7 +#if SOURCE_ENGINE >= SE_LEFT4DEAD
     1.8 +	const char *networkid_force;
     1.9 +	if ((networkid_force = engine->GetClientConVarValue(client, "networkid_force")) && networkid_force[0] != '\0')
    1.10 +	{
    1.11 +		unsigned long long *steamId = (unsigned long long *)engine->GetClientSteamID(pEntity);
    1.12 +		unsigned int accountId = steamId ? (*steamId & 0xFFFFFFFF) : 0;
    1.13 +		g_Logger.LogMessage("\"%s<%d><STEAM_1:%d:%d><>\" has bad networkid (id \"%s\") (ip \"%s\")",
    1.14 +			new_name, pPlayer->GetUserId(), accountId & 1, accountId >> 1, networkid_force, pPlayer->GetIPAddress());
    1.15 +
    1.16 +		pPlayer->Kick("NetworkID spoofing detected.");
    1.17 +		RETURN_META(MRES_IGNORED);
    1.18 +	}
    1.19 +#endif
    1.20 +
    1.21  	if (strcmp(old_name, new_name) != 0)
    1.22  	{
    1.23  		AdminId id = g_Admins.FindAdminByIdentity("name", new_name);