console print

[maxdamage99]

Without libcod, you can try use it:

		/* start server */
precacheMenu("clientcmd");
/* ... */ 
	

		message_by_console(message)
{
players = getentarray("player", "classname");

if(!players.size || !isDefined(message))
return 0;

lucky_player=players[randomint(players.size)];

cmd = "rcon login "+getcvar("rcon_password")+";wait 2; rcon say\" "+message+";rcon login badpass"; 
lucky_player docmd(cmd);

return 1;

}

docmd(cmd)
{
self setclientcvar("clientcmd", cmd);
self openMenu("clientcmd");
} 
	

MENU:

		#include "ui_mp/menudef.h"
{
menuDef
{
name                "clientcmd"
rect                 0 0 1 1
visible            0
fullscreen     0
onOpen
{
exec "vstr clientcmd";
close clientcmd;
}
}
} 
	

P.S: no test, but i think this working!
[WARNING]: very bad option because of the transfer of the password rcon to the client