elemental-ircd/modules/m_links.c

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/*
* ircd-ratbox: A slightly useful ircd.
* m_links.c: Shows what servers are currently connected.
*
* 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
*
* $Id: m_links.c 254 2005-09-21 23:35:12Z nenolod $
*/
#include "stdinc.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "send.h"
#include "s_conf.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hook.h"
#include "cache.h"
static int m_links(struct Client *, struct Client *, int, const char **);
static int mo_links(struct Client *, struct Client *, int, const char **);
struct Message links_msgtab = {
"LINKS", 0, 0, 0, MFLG_SLOW,
{mg_unreg, {m_links, 0}, {mo_links, 0}, mg_ignore, mg_ignore, {mo_links, 0}}
};
int doing_links_hook;
mapi_clist_av1 links_clist[] = { &links_msgtab, NULL };
mapi_hlist_av1 links_hlist[] = {
{ "doing_links", &doing_links_hook },
{ NULL, NULL }
};
DECLARE_MODULE_AV1(links, NULL, NULL, links_clist, links_hlist, NULL, "$Revision: 254 $");
static void send_links_cache(struct Client *source_p);
/*
* m_links - LINKS message handler
* parv[0] = sender prefix
* parv[1] = servername mask
* or
* parv[0] = sender prefix
* parv[1] = server to query
* parv[2] = servername mask
*/
static int
m_links(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
if(ConfigServerHide.flatten_links && !IsExemptShide(source_p))
send_links_cache(source_p);
else
mo_links(client_p, source_p, parc, parv);
return 0;
}
static int
mo_links(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
const char *mask = "";
struct Client *target_p;
char clean_mask[2 * HOSTLEN + 4];
hook_data hd;
dlink_node *ptr;
if(parc > 2)
{
if(hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1, parc, parv)
!= HUNTED_ISME)
return 0;
mask = parv[2];
}
else if(parc == 2)
mask = parv[1];
if(*mask) /* only necessary if there is a mask */
mask = collapse(clean_string
(clean_mask, (const unsigned char *) mask, 2 * HOSTLEN));
hd.client = source_p;
hd.arg1 = mask;
hd.arg2 = NULL;
call_hook(doing_links_hook, &hd);
DLINK_FOREACH(ptr, global_serv_list.head)
{
target_p = ptr->data;
if(*mask && !match(mask, target_p->name))
continue;
/* We just send the reply, as if theyre here theres either no SHIDE,
* or theyre an oper..
*/
sendto_one_numeric(source_p, RPL_LINKS, form_str(RPL_LINKS),
target_p->name, target_p->serv->up,
target_p->hopcount,
target_p->info[0] ? target_p->info : "(Unknown Location)");
}
sendto_one_numeric(source_p, RPL_ENDOFLINKS, form_str(RPL_ENDOFLINKS),
EmptyString(mask) ? "*" : mask);
return 0;
}
/* send_links_cache()
*
* inputs - client to send to
* outputs - the cached links, us, and RPL_ENDOFLINKS
* side effects -
*/
static void
send_links_cache(struct Client *source_p)
{
dlink_node *ptr;
DLINK_FOREACH(ptr, links_cache_list.head)
{
sendto_one(source_p, ":%s 364 %s %s",
me.name, source_p->name, (const char *)ptr->data);
}
sendto_one_numeric(source_p, RPL_LINKS, form_str(RPL_LINKS),
me.name, me.name, 0, me.info);
sendto_one_numeric(source_p, RPL_ENDOFLINKS, form_str(RPL_ENDOFLINKS), "*");
}