/*
* IRC - Internet Relay Chat, ircd/m_mode.c
* Copyright (C) 1990 Jarkko Oikarinen and
* University of Oulu, Computing Center
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: m_mode.c,v 1.8.2.3 2003/11/01 10:19:11 isomer Exp $
*/
/*
* m_functions execute protocol messages on this server:
*
* cptr is always NON-NULL, pointing to a *LOCAL* client
* structure (with an open socket connected!). This
* identifies the physical socket where the message
* originated (or which caused the m_function to be
* executed--some m_functions may call others...).
*
* sptr is the source of the message, defined by the
* prefix part of the message if present. If not
* or prefix not found, then sptr==cptr.
*
* (!IsServer(cptr)) => (cptr == sptr), because
* prefixes are taken *only* from servers...
*
* (IsServer(cptr))
* (sptr == cptr) => the message didn't
* have the prefix.
*
* (sptr != cptr && IsServer(sptr) means
* the prefix specified servername. (?)
*
* (sptr != cptr && !IsServer(sptr) means
* that message originated from a remote
* user (not local).
*
* combining
*
* (!IsServer(sptr)) means that, sptr can safely
* taken as defining the target structure of the
* message in this server.
*
* *Always* true (if 'parse' and others are working correct):
*
* 1) sptr->from == cptr (note: cptr->from == cptr)
*
* 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
* *cannot* be a local connection, unless it's
* actually cptr!). [MyConnect(x) should probably
* be defined as (x == x->from) --msa ]
*
* parc number of variable parameter strings (if zero,
* parv is allowed to be NULL)
*
* parv a NULL terminated list of parameter pointers,
*
* parv[0], sender (prefix string), if not present
* this points to an empty string.
* parv[1]...parv[parc-1]
* pointers to additional parameters
* parv[parc] == NULL, *always*
*
* note: it is guaranteed that parv[0]..parv[parc-1] are all
* non-NULL pointers.
*/
#include "config.h"
#include "handlers.h"
#include "channel.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "ircd_reply.h"
#include "ircd_string.h"
#include "msg.h"
#include "numeric.h"
#include "numnicks.h"
#include "s_conf.h"
#include "s_debug.h"
#include "s_user.h"
#include "send.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
int
m_mode(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
{
struct Channel *chptr = 0;
struct ModeBuf mbuf;
struct Membership *member;
if (parc < 2)
return need_more_params(sptr, "MODE");
clean_channelname(parv[1]);
if (!(chptr = FindChannel(parv[1])))
return set_user_mode(cptr, sptr, parc, parv);
ClrFlag(sptr, FLAG_TS8);
if (parc < 3) {
char modebuf[MODEBUFLEN];
char parabuf[MODEBUFLEN];
*modebuf = *parabuf = '\0';
modebuf[1] = '\0';
channel_modes(sptr, modebuf, parabuf, sizeof(parabuf), chptr);
send_reply(sptr, RPL_CHANNELMODEIS, chptr->chname, modebuf, parabuf);
send_reply(sptr, RPL_CREATIONTIME, chptr->chname, chptr->creationtime);
return 0;
}
if (!(member = find_member_link(chptr, sptr)) || !IsChanOp(member)) {
if (IsLocalChannel(chptr->chname) && HasPriv(sptr, PRIV_MODE_LCHAN)) {
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_CHANNEL | /* Send mode to channel */
MODEBUF_DEST_HACK4)); /* Send HACK(4) notice */
mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
(MODE_PARSE_SET | /* Set the mode */
MODE_PARSE_FORCE)); /* Force it to take */
return modebuf_flush(&mbuf);
} else
mode_parse(0, cptr, sptr, chptr, parc - 2, parv + 2,
(member ? MODE_PARSE_NOTOPER : MODE_PARSE_NOTMEMBER));
return 0;
}
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_CHANNEL | /* Send mode to channel */
MODEBUF_DEST_SERVER)); /* Send mode to servers */
mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, MODE_PARSE_SET);
return modebuf_flush(&mbuf);
}
int
ms_mode(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
{
struct Channel *chptr = 0;
struct ModeBuf mbuf;
struct Membership *member;
if (parc < 3)
return need_more_params(sptr, "MODE");
if (IsLocalChannel(parv[1]))
return 0;
if (!(chptr = FindChannel(parv[1])))
return set_user_mode(cptr, sptr, parc, parv);
ClrFlag(sptr, FLAG_TS8);
if (IsServer(sptr)) {
if (find_conf_byhost(cli_confs(cptr), cli_name(sptr), CONF_UWORLD))
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_CHANNEL | /* Send mode to clients */
MODEBUF_DEST_SERVER | /* Send mode to servers */
MODEBUF_DEST_HACK4)); /* Send a HACK(4) message */
else
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_CHANNEL | /* Send mode to clients */
MODEBUF_DEST_SERVER | /* Send mode to servers */
MODEBUF_DEST_HACK3)); /* Send a HACK(3) message */
mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
(MODE_PARSE_SET | /* Set the mode */
MODE_PARSE_STRICT | /* Interpret it strictly */
MODE_PARSE_FORCE)); /* And force it to be accepted */
} else {
if (!(member = find_member_link(chptr, sptr)) || !IsChanOp(member)) {
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_SERVER | /* Send mode to server */
MODEBUF_DEST_HACK2 | /* Send a HACK(2) message */
MODEBUF_DEST_DEOP | /* Deop the source */
MODEBUF_DEST_BOUNCE)); /* And bounce the MODE */
mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
(MODE_PARSE_STRICT | /* Interpret it strictly */
MODE_PARSE_BOUNCE)); /* And bounce the MODE */
} else {
modebuf_init(&mbuf, sptr, cptr, chptr,
(MODEBUF_DEST_CHANNEL | /* Send mode to clients */
MODEBUF_DEST_SERVER)); /* Send mode to servers */
mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
(MODE_PARSE_SET | /* Set the mode */
MODE_PARSE_STRICT | /* Interpret it strictly */
MODE_PARSE_FORCE)); /* And force it to be accepted */
}
}
return modebuf_flush(&mbuf);
}
syntax highlighted by Code2HTML, v. 0.9.1