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NeoStats-NeoIRCd/modules/m_userhost.c

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/*
* NeoIRCd: NeoStats Group. Based on Hybird7
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* m_userhost.c: Shows a user's host.
*
* 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: m_userhost.c,v 1.5 2003/01/27 04:20:36 fishwaldo Exp $
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*/
#include "stdinc.h"
#include "handlers.h"
#include "client.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "send.h"
#include "irc_string.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_conf.h"
static char buf[BUFSIZE];
static void m_userhost(struct Client*, struct Client*, int, char**);
struct Message userhost_msgtab = {
"USERHOST", 0, 0, 1, 0, MFLG_SLOW, 0,
{m_unregistered, m_userhost, m_userhost, m_userhost}
};
#ifndef STATIC_MODULES
void
_modinit(void)
{
mod_add_cmd(&userhost_msgtab);
}
void
_moddeinit(void)
{
mod_del_cmd(&userhost_msgtab);
}
const char *_version = "$Revision: 1.5 $";
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#endif
/*
* m_userhost added by Darren Reed 13/8/91 to aid clients and reduce
* the need for complicated requests like WHOIS. It returns user/host
* information only (no spurious AWAY labels or channels).
*/
static void m_userhost(struct Client *client_p,
struct Client *source_p,
int parc,
char *parv[])
{
struct Client *target_p;
char response[NICKLEN*2+USERLEN+HOSTLEN+30];
char *t;
int i, n; /* loop counter */
int cur_len;
int rl;
cur_len = ircsprintf(buf,form_str(RPL_USERHOST),me.name, parv[0], "");
t = buf + cur_len;
for ( i = 0; i < 5; i++)
{
if (parv[i+1] == NULL)
break;
if ((target_p = find_person(parv[i+1])) != NULL)
{
/*
* Show real IP for USERHOST on yourself.
* This is needed for things like mIRC, which do a server-based
* lookup (USERHOST) to figure out what the clients' local IP
* is. Useful for things like NAT, and dynamic dial-up users.
*/
/*
* If a lazyleaf relayed us this request, we don't know
* the clients real IP.
* So, if you're on a lazyleaf, and you send a userhost
* including your nick and the nick of someone not known to
* the leaf, you'll get your spoofed IP. tough.
*/
if (MyClient(target_p) && (target_p == source_p))
{
rl = ircsprintf(response, "%s%s=%c%s@%s ",
target_p->name,
IsOper(target_p) ? "*" : "",
(target_p->user->away) ? '-' : '+',
target_p->username,
target_p->host);
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}
else
{
rl = ircsprintf(response, "%s%s=%c%s@%s ",
target_p->name,
IsOper(target_p) ? "*" : "",
(target_p->user->away) ? '-' : '+',
target_p->username,
target_p->vhost);
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};
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if((rl + cur_len) < (BUFSIZE-10))
{
ircsprintf(t,"%s",response);
t += rl;
cur_len += rl;
}
else
break;
}
else if ( !ServerInfo.hub && uplink && IsCapable(uplink, CAP_LL) )
{
t = buf;
for( n = 0; n < 5; n++ )
{
if( parv[n+1] )
{
rl = ircsprintf(t, "%s ", parv[n+1]);
t += rl;
}
else
break;
}
/* Relay upstream, and let hub reply */
sendto_one(uplink, ":%s USERHOST %s", parv[0], buf );
return;
}
}
sendto_one(source_p, "%s", buf);
}