- fix a potential file descriptor leak in server side of pak downloading

- add new functions for banning clients from server, in engine part. This will also make it possible to ban ipv6 addresses in old mods.

code/server/sv_main.c

@@ -54,6 +54,9 @@ cvar_t	*sv_floodProtect;
 cvar_t	*sv_lanForceRate; // dedicated 1 (LAN) server forces local client rates to 99999 (bug #491)
 cvar_t	*sv_strictAuth;
 
+serverBan_t serverBans[SERVER_MAXBANS];
+int serverBansCount = 0;
+
 /*
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