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construct/modules/m_ison.c
Elizabeth Myers 3c7d6fcce7 Message handlers should return void.
Also fix up some return values and stuff to use bool (or void if
nothing). I just did it whilst I was here.

According to jilles, the return value used to signify whether or not the
client had exited. This was error-prone and was fixed a long, long time
ago, but the return value was left int for historical reasons.

Since the return type is not used (and has no clear use case anyway),
it's safe to just get rid of it.
2016-03-09 01:37:03 -06:00

123 lines
3.4 KiB
C

/*
* ircd-ratbox: A slightly useful ircd.
* m_ison.c: Provides a single line answer of whether a user is online.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* 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
*/
#include "stdinc.h"
#include "client.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_conf.h" /* ConfigFileEntry */
#include "s_serv.h" /* uplink/IsCapable */
#include "hash.h"
#include <string.h>
static const char ison_desc[] = "Provides the ISON command to check if a set of users is online";
static void m_ison(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message ison_msgtab = {
"ISON", 0, 0, 0, 0,
{mg_unreg, {m_ison, 2}, mg_ignore, mg_ignore, mg_ignore, {m_ison, 2}}
};
mapi_clist_av1 ison_clist[] = { &ison_msgtab, NULL };
DECLARE_MODULE_AV2(ison, NULL, NULL, ison_clist, NULL, NULL, NULL, NULL, ison_desc);
static char buf[BUFSIZE];
static char buf2[BUFSIZE];
/*
* 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 MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Client *target_p;
char *nick;
char *p;
char *current_insert_point, *current_insert_point2;
int len;
int i;
int done = 0;
current_insert_point2 = buf2;
*buf2 = '\0';
sprintf(buf, form_str(RPL_ISON), me.name, source_p->name);
len = strlen(buf);
current_insert_point = buf + len;
/* rfc1459 is ambigious about how to handle ISON
* this should handle both interpretations.
*/
for (i = 1; i < parc; i++)
{
char *cs = LOCAL_COPY(parv[i]);
for (nick = rb_strtok_r(cs, " ", &p); nick; nick = rb_strtok_r(NULL, " ", &p))
{
target_p = find_named_client(nick);
if(target_p != NULL)
{
len = strlen(target_p->name);
if((current_insert_point + (len + 5)) < (buf + sizeof(buf)))
{
memcpy((void *) current_insert_point,
(void *) 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';
*current_insert_point2 = '\0';
sendto_one(source_p, "%s", buf);
}