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/*
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
* m_ison.c: Provides a single line answer of whether a user is online.
*
* Copyright (C) 2002 by the past and present ircd coders, and others.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id$
*/
#include "stdinc.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
/*
* m_ison added by Darren Reed 13/8/91 to act as an efficent user indicator
* with respect to cpu/bandwidth used. Implemented for NOTIFY feature in
* clients. Designed to reduce number of whois requests. Can process
* nicknames in batches as long as the maximum buffer length.
*
* format:
* ISON :nicklist
*/
static void
m_ison(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
struct Client *target_p = NULL;
char *nick;
char *p = NULL;
char *current_insert_point = NULL;
char buf[IRCD_BUFSIZE];
int len;
int i;
int done = 0;
len = snprintf(buf, sizeof(buf), form_str(RPL_ISON), me.name, source_p->name);
current_insert_point = buf + len;
/*
* rfc1459 is ambigious about how to handle ISON
* this should handle both interpretations.
*/
for (i = 1; i < parc; i++)
{
for (nick = strtoken(&p, parv[i], " "); nick;
nick = strtoken(&p, NULL, " "))
{
if ((target_p = find_person(client_p, nick)))
{
len = strlen(target_p->name);
if ((current_insert_point + (len + 5)) < (buf + sizeof(buf)))
{
memcpy(current_insert_point, target_p->name, len);
current_insert_point += len;
*current_insert_point++ = ' ';
}
else
{
done = 1;
break;
}
}
}
if (done)
break;
}
/*
* current_insert_point--;
* Do NOT take out the trailing space, it breaks ircII
* --Rodder
*/
*current_insert_point = '\0';
sendto_one(source_p, "%s", buf);
}
static struct Message ison_msgtab = {
"ISON", 0, 0, 2, 1, MFLG_SLOW, 0,
{m_unregistered, m_ison, m_ignore, m_ignore, m_ison, m_ignore}
};
static void
module_init(void)
{
mod_add_cmd(&ison_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&ison_msgtab);
}
struct module module_entry = {
.node = { NULL, NULL, NULL },
.name = NULL,
.version = "$Revision$",
.handle = NULL,
.modinit = module_init,
.modexit = module_exit,
.flags = 0
};
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