]>
jfr.im git - irc/quakenet/snircd.git/blob - ircd/m_mode.c
2 * IRC - Internet Relay Chat, ircd/m_mode.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 1, or (at your option)
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * $Id: m_mode.c,v 1.15.2.6 2007/07/14 02:40:01 isomer Exp $
27 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
89 #include "ircd_features.h"
91 #include "ircd_reply.h"
92 #include "ircd_string.h"
101 /* #include <assert.h> -- Now using assert in ircd_log.h */
106 m_mode(struct Client
*cptr
, struct Client
*sptr
, int parc
, char *parv
[])
108 struct Channel
*chptr
= 0;
110 struct Membership
*member
;
113 return need_more_params(sptr
, "MODE");
115 if (!IsChannelName(parv
[1]) || !(chptr
= FindChannel(parv
[1])))
117 struct Client
*acptr
;
119 acptr
= FindUser(parv
[1]);
122 send_reply(sptr
, ERR_NOSUCHCHANNEL
, parv
[1]);
125 else if (sptr
!= acptr
)
127 send_reply(sptr
, ERR_USERSDONTMATCH
);
130 return set_user_mode(cptr
, sptr
, parc
, parv
, ALLOWMODES_ANY
);
133 ClrFlag(sptr
, FLAG_TS8
);
135 member
= find_member_link(chptr
, sptr
);
138 send_reply(sptr
, ERR_NOTONCHANNEL
, chptr
->chname
);
143 char modebuf
[MODEBUFLEN
];
144 char parabuf
[MODEBUFLEN
];
146 *modebuf
= *parabuf
= '\0';
148 channel_modes(sptr
, modebuf
, parabuf
, sizeof(parabuf
), chptr
, member
);
149 send_reply(sptr
, RPL_CHANNELMODEIS
, chptr
->chname
, modebuf
, parabuf
);
150 send_reply(sptr
, RPL_CREATIONTIME
, chptr
->chname
, chptr
->creationtime
);
154 if (!member
|| !IsChanOp(member
)) {
155 if (IsLocalChannel(chptr
->chname
) && HasPriv(sptr
, PRIV_MODE_LCHAN
)) {
156 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
157 (MODEBUF_DEST_CHANNEL
| /* Send mode to channel */
158 MODEBUF_DEST_HACK4
)); /* Send HACK(4) notice */
159 mode_parse(&mbuf
, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2,
160 (MODE_PARSE_SET
| /* Set the mode */
161 MODE_PARSE_FORCE
), /* Force it to take */
163 return modebuf_flush(&mbuf
);
165 mode_parse(0, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2,
166 (member
? MODE_PARSE_NOTOPER
: MODE_PARSE_NOTMEMBER
), member
);
170 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
171 (MODEBUF_DEST_CHANNEL
| /* Send mode to channel */
172 MODEBUF_DEST_SERVER
)); /* Send mode to servers */
173 mode_parse(&mbuf
, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2, MODE_PARSE_SET
, member
);
174 return modebuf_flush(&mbuf
);
178 ms_mode(struct Client
*cptr
, struct Client
*sptr
, int parc
, char *parv
[])
180 struct Channel
*chptr
= 0;
182 struct Membership
*member
;
185 return need_more_params(sptr
, "MODE");
187 if (IsLocalChannel(parv
[1]))
190 if (!(chptr
= FindChannel(parv
[1])))
192 struct Client
*acptr
;
194 acptr
= FindUser(parv
[1]);
199 else if (sptr
!= acptr
)
201 sendwallto_group_butone(&me
, WALL_WALLOPS
, 0,
202 "MODE for User %s from %s!%s", parv
[1],
203 cli_name(cptr
), cli_name(sptr
));
206 return set_user_mode(cptr
, sptr
, parc
, parv
, ALLOWMODES_ANY
);
209 ClrFlag(sptr
, FLAG_TS8
);
211 if (IsServer(sptr
)) {
212 if (find_conf_byhost(cli_confs(cptr
), cli_name(sptr
), CONF_UWORLD
))
213 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
214 (MODEBUF_DEST_CHANNEL
| /* Send mode to clients */
215 MODEBUF_DEST_SERVER
| /* Send mode to servers */
216 MODEBUF_DEST_HACK4
)); /* Send a HACK(4) message */
217 else if (!feature_bool(FEAT_OPLEVELS
))
218 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
219 (MODEBUF_DEST_CHANNEL
| /* Send mode to clients */
220 MODEBUF_DEST_SERVER
| /* Send mode to servers */
221 MODEBUF_DEST_HACK3
)); /* Send a HACK(3) message */
223 /* Servers need to be able to op people who join using the Apass
224 * or upass, as well as people joining a zannel, therefore we do
225 * not generate HACK3 when oplevels are on. */
226 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
227 (MODEBUF_DEST_CHANNEL
| /* Send mode to clients */
228 MODEBUF_DEST_SERVER
)); /* Send mode to servers */
230 mode_parse(&mbuf
, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2,
231 (MODE_PARSE_SET
| /* Set the mode */
232 MODE_PARSE_STRICT
| /* Interpret it strictly */
233 MODE_PARSE_FORCE
), /* And force it to be accepted */
236 if (!(member
= find_member_link(chptr
, sptr
)) || !IsChanOp(member
)) {
237 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
238 (MODEBUF_DEST_SERVER
| /* Send mode to server */
239 MODEBUF_DEST_HACK2
| /* Send a HACK(2) message */
240 MODEBUF_DEST_DEOP
| /* Deop the source */
241 MODEBUF_DEST_BOUNCE
)); /* And bounce the MODE */
242 mode_parse(&mbuf
, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2,
243 (MODE_PARSE_STRICT
| /* Interpret it strictly */
244 MODE_PARSE_BOUNCE
), /* And bounce the MODE */
247 modebuf_init(&mbuf
, sptr
, cptr
, chptr
,
248 (MODEBUF_DEST_CHANNEL
| /* Send mode to clients */
249 MODEBUF_DEST_SERVER
)); /* Send mode to servers */
250 mode_parse(&mbuf
, cptr
, sptr
, chptr
, parc
- 2, parv
+ 2,
251 (MODE_PARSE_SET
| /* Set the mode */
252 MODE_PARSE_STRICT
| /* Interpret it strictly */
253 MODE_PARSE_FORCE
), /* And force it to be accepted */
258 return modebuf_flush(&mbuf
);