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elemental-ircd/modules/m_whois.c

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/*
* ircd-ratbox: A slightly useful ircd.
* m_whois.c: Shows who a user is.
*
* 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_whois.c 3536 2007-07-14 21:50:21Z jilles $
*/
#include "stdinc.h"
#include "tools.h"
#include "common.h"
#include "client.h"
#include "hash.h"
#include "channel.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "s_conf.h"
#include "s_log.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hook.h"
#include "s_newconf.h"
static void do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static void single_whois(struct Client *source_p, struct Client *target_p, int operspy);
static int m_whois(struct Client *, struct Client *, int, const char **);
static int ms_whois(struct Client *, struct Client *, int, const char **);
struct Message whois_msgtab = {
"WHOIS", 0, 0, 0, MFLG_SLOW,
{mg_unreg, {m_whois, 2}, {ms_whois, 2}, mg_ignore, mg_ignore, {m_whois, 2}}
};
int doing_whois_hook;
int doing_whois_global_hook;
mapi_clist_av1 whois_clist[] = { &whois_msgtab, NULL };
mapi_hlist_av1 whois_hlist[] = {
{ "doing_whois", &doing_whois_hook },
{ "doing_whois_global", &doing_whois_global_hook },
{ NULL, NULL }
};
DECLARE_MODULE_AV1(whois, NULL, NULL, whois_clist, whois_hlist, NULL, "$Revision: 3536 $");
/*
* m_whois
* parv[0] = sender prefix
* parv[1] = nickname masklist
*/
static int
m_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
static time_t last_used = 0;
if(parc > 2)
{
if(EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
me.name, source_p->name);
return 0;
}
if(!IsOper(source_p))
{
/* seeing as this is going across servers, we should limit it */
if((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
{
sendto_one(source_p, form_str(RPL_LOAD2HI),
me.name, source_p->name, "WHOIS");
sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
form_str(RPL_ENDOFWHOIS), parv[2]);
return 0;
}
else
last_used = CurrentTime;
}
if(hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, parc, parv) !=
HUNTED_ISME)
return 0;
parv[1] = parv[2];
}
do_whois(client_p, source_p, parc, parv);
return 0;
}
/*
* ms_whois
* parv[0] = sender prefix
* parv[1] = server to reply
* parv[2] = nickname to whois
*/
static int
ms_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Client *target_p;
/* note: early versions of ratbox allowed users to issue a remote
* whois with a blank parv[2], so we cannot treat it as a protocol
* violation. --anfl
*/
if(parc < 3 || EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
me.name, source_p->name);
return 0;
}
/* check if parv[1] exists */
if((target_p = find_client(parv[1])) == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
form_str(ERR_NOSUCHSERVER),
IsDigit(parv[1][0]) ? "*" : parv[1]);
return 0;
}
/* if parv[1] isnt my client, or me, someone else is supposed
* to be handling the request.. so send it to them
*/
if(!MyClient(target_p) && !IsMe(target_p))
{
sendto_one(target_p, ":%s WHOIS %s :%s",
get_id(source_p, target_p),
get_id(target_p, target_p), parv[2]);
return 0;
}
/* ok, the target is either us, or a client on our server, so perform the whois
* but first, parv[1] == server to perform the whois on, parv[2] == person
* to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
*/
parv[1] = parv[2];
do_whois(client_p, source_p, parc, parv);
return 0;
}
/* do_whois
*
* inputs - pointer to
* output -
* side effects -
*/
static void
do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Client *target_p;
char *nick;
char *p = NULL;
int operspy = 0;
nick = LOCAL_COPY(parv[1]);
if((p = strchr(nick, ',')))
*p = '\0';
if(IsOperSpy(source_p) && *nick == '!')
{
operspy = 1;
nick++;
}
target_p = find_named_person(nick);
if(target_p != NULL)
{
if(operspy)
{
char buffer[BUFSIZE];
snprintf(buffer, sizeof(buffer), "%s!%s@%s %s",
target_p->name, target_p->username,
target_p->host, target_p->servptr->name);
report_operspy(source_p, "WHOIS", buffer);
}
single_whois(source_p, target_p, operspy);
}
else
sendto_one_numeric(source_p, ERR_NOSUCHNICK,
form_str(ERR_NOSUCHNICK),
nick);
sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
form_str(RPL_ENDOFWHOIS), parv[1]);
return;
}
/*
* single_whois()
*
* Inputs - source_p client to report to
* - target_p client to report on
* Output - if found return 1
* Side Effects - do a single whois on given client
* writing results to source_p
*/
static void
single_whois(struct Client *source_p, struct Client *target_p, int operspy)
{
char buf[BUFSIZE];
rb_dlink_node *ptr;
struct membership *msptr;
struct Channel *chptr;
int cur_len = 0;
int mlen;
char *t;
int tlen;
hook_data_client hdata;
char *name;
char quest[] = "?";
int visible;
int extra_space = 0;
if(target_p->name[0] == '\0')
name = quest;
else
name = target_p->name;
if(target_p->user == NULL)
{
s_assert(0);
return;
}
sendto_one_numeric(source_p, RPL_WHOISUSER, form_str(RPL_WHOISUSER),
target_p->name, target_p->username,
target_p->host, target_p->info);
cur_len = mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS),
get_id(&me, source_p), get_id(source_p, source_p),
target_p->name);
/* Make sure it won't overflow when sending it to the client
* in full names; note that serverhiding may require more space
* for a different server name (not done here) -- jilles
*/
if (!MyConnect(source_p))
{
extra_space = strlen(source_p->name) - 9;
if (extra_space < 0)
extra_space = 0;
extra_space += strlen(me.name) - 2; /* make sure >= 0 */
cur_len += extra_space;
}
t = buf + mlen;
if (!IsService(target_p))
{
RB_DLINK_FOREACH(ptr, target_p->user->channel.head)
{
msptr = ptr->data;
chptr = msptr->chptr;
visible = ShowChannel(source_p, chptr);
if(visible || operspy)
{
if((cur_len + strlen(chptr->chname) + 3) > (BUFSIZE - 5))
{
sendto_one(source_p, "%s", buf);
cur_len = mlen + extra_space;
t = buf + mlen;
}
tlen = ircsprintf(t, "%s%s%s ",
visible ? "" : "!",
find_channel_status(msptr, 1),
chptr->chname);
t += tlen;
cur_len += tlen;
}
}
}
if(cur_len > mlen + extra_space)
sendto_one(source_p, "%s", buf);
sendto_one_numeric(source_p, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER),
target_p->name, target_p->servptr->name,
target_p->servptr->info);
if(target_p->user->away)
sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY),
target_p->name, target_p->user->away);
if(IsOper(target_p))
{
sendto_one_numeric(source_p, RPL_WHOISOPERATOR, form_str(RPL_WHOISOPERATOR),
target_p->name,
IsService(target_p) ? ConfigFileEntry.servicestring :
(IsAdmin(target_p) ? GlobalSetOptions.adminstring :
GlobalSetOptions.operstring));
}
if(MyClient(target_p))
{
if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p))
{
/* trick here: show a nonoper their own IP if
* dynamic spoofed but not if auth{} spoofed
* -- jilles */
ClearDynSpoof(target_p);
sendto_one_numeric(source_p, RPL_WHOISHOST,
form_str(RPL_WHOISHOST),
target_p->name, target_p->orighost,
show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255");
SetDynSpoof(target_p);
}
else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p))
sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
form_str(RPL_WHOISACTUALLY),
target_p->name, target_p->sockhost);
sendto_one_numeric(source_p, RPL_WHOISIDLE, form_str(RPL_WHOISIDLE),
target_p->name,
CurrentTime - target_p->localClient->last,
target_p->localClient->firsttime);
}
else
{
if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p))
{
ClearDynSpoof(target_p);
sendto_one_numeric(source_p, RPL_WHOISHOST,
form_str(RPL_WHOISHOST),
target_p->name, target_p->orighost,
show_ip(source_p, target_p) && !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0")? target_p->sockhost : "255.255.255.255");
SetDynSpoof(target_p);
}
else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p) &&
!EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0"))
{
sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
form_str(RPL_WHOISACTUALLY),
target_p->name, target_p->sockhost);
}
}
hdata.client = source_p;
hdata.target = target_p;
/* doing_whois_hook must only be called for local clients,
* doing_whois_global_hook must only be called for local targets
*/
/* it is important that these are called *before* RPL_ENDOFWHOIS is
* sent, services compatibility code depends on it. --anfl
*/
if(MyClient(source_p))
call_hook(doing_whois_hook, &hdata);
else
call_hook(doing_whois_global_hook, &hdata);
return;
}
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