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189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_opmode.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu> | |
6 | * | |
7 | * See file AUTHORS in IRC package for additional names of | |
8 | * the programmers. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 1, or (at your option) | |
13 | * any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * $Id: m_opmode.c,v 1.18 2005/09/13 15:17:46 entrope Exp $ | |
25 | */ | |
26 | ||
27 | /* | |
28 | * m_functions execute protocol messages on this server: | |
29 | * | |
30 | * cptr is always NON-NULL, pointing to a *LOCAL* client | |
31 | * structure (with an open socket connected!). This | |
32 | * identifies the physical socket where the message | |
33 | * originated (or which caused the m_function to be | |
34 | * executed--some m_functions may call others...). | |
35 | * | |
36 | * sptr is the source of the message, defined by the | |
37 | * prefix part of the message if present. If not | |
38 | * or prefix not found, then sptr==cptr. | |
39 | * | |
40 | * (!IsServer(cptr)) => (cptr == sptr), because | |
41 | * prefixes are taken *only* from servers... | |
42 | * | |
43 | * (IsServer(cptr)) | |
44 | * (sptr == cptr) => the message didn't | |
45 | * have the prefix. | |
46 | * | |
47 | * (sptr != cptr && IsServer(sptr) means | |
48 | * the prefix specified servername. (?) | |
49 | * | |
50 | * (sptr != cptr && !IsServer(sptr) means | |
51 | * that message originated from a remote | |
52 | * user (not local). | |
53 | * | |
54 | * combining | |
55 | * | |
56 | * (!IsServer(sptr)) means that, sptr can safely | |
57 | * taken as defining the target structure of the | |
58 | * message in this server. | |
59 | * | |
60 | * *Always* true (if 'parse' and others are working correct): | |
61 | * | |
62 | * 1) sptr->from == cptr (note: cptr->from == cptr) | |
63 | * | |
64 | * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr | |
65 | * *cannot* be a local connection, unless it's | |
66 | * actually cptr!). [MyConnect(x) should probably | |
67 | * be defined as (x == x->from) --msa ] | |
68 | * | |
69 | * parc number of variable parameter strings (if zero, | |
70 | * parv is allowed to be NULL) | |
71 | * | |
72 | * parv a NULL terminated list of parameter pointers, | |
73 | * | |
74 | * parv[0], sender (prefix string), if not present | |
75 | * this points to an empty string. | |
76 | * parv[1]...parv[parc-1] | |
77 | * pointers to additional parameters | |
78 | * parv[parc] == NULL, *always* | |
79 | * | |
80 | * note: it is guaranteed that parv[0]..parv[parc-1] are all | |
81 | * non-NULL pointers. | |
82 | */ | |
83 | #include "config.h" | |
84 | ||
85 | #include "client.h" | |
86 | #include "channel.h" | |
87 | #include "hash.h" | |
88 | #include "ircd.h" | |
89 | #include "ircd_features.h" | |
90 | #include "ircd_log.h" | |
91 | #include "ircd_reply.h" | |
92 | #include "ircd_string.h" | |
93 | #include "msg.h" | |
94 | #include "numeric.h" | |
95 | #include "numnicks.h" | |
96 | #include "send.h" | |
97 | #include "s_conf.h" | |
98 | ||
99 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
100 | ||
101 | /* | |
102 | * ms_opmode - server message handler | |
103 | */ | |
104 | int ms_opmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
105 | { | |
106 | struct Channel *chptr = 0; | |
107 | struct ModeBuf mbuf; | |
108 | ||
109 | if (parc < 3) | |
110 | return need_more_params(sptr, "OPMODE"); | |
111 | ||
112 | if (IsLocalChannel(parv[1])) | |
113 | return 0; | |
114 | ||
115 | if ('#' != *parv[1] || !(chptr = FindChannel(parv[1]))) | |
116 | return send_reply(sptr, ERR_NOSUCHCHANNEL, parv[1]); | |
117 | ||
118 | modebuf_init(&mbuf, sptr, cptr, chptr, | |
119 | (MODEBUF_DEST_CHANNEL | /* Send MODE to channel */ | |
120 | MODEBUF_DEST_SERVER | /* And to server */ | |
121 | MODEBUF_DEST_OPMODE | /* Use OPMODE */ | |
122 | MODEBUF_DEST_HACK4 | /* Generate a HACK(4) notice */ | |
123 | MODEBUF_DEST_LOG)); /* Log the mode changes to OPATH */ | |
124 | ||
125 | mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, | |
126 | (MODE_PARSE_SET | /* Set the modes on the channel */ | |
127 | MODE_PARSE_STRICT | /* Be strict about it */ | |
128 | MODE_PARSE_FORCE), /* And force them to be accepted */ | |
129 | NULL); | |
130 | ||
131 | modebuf_flush(&mbuf); /* flush the modes */ | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | /* | |
137 | * mo_opmode - oper message handler | |
138 | */ | |
139 | int mo_opmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
140 | { | |
141 | struct Channel *chptr = 0; | |
142 | struct ModeBuf mbuf; | |
143 | char *chname; | |
144 | const char *qreason; | |
145 | int force = 0; | |
146 | ||
147 | if (!feature_bool(FEAT_CONFIG_OPERCMDS)) | |
148 | return send_reply(sptr, ERR_DISABLED, "OPMODE"); | |
149 | ||
150 | if (parc < 3) | |
151 | return need_more_params(sptr, "OPMODE"); | |
152 | ||
153 | chname = parv[1]; | |
154 | if (*chname == '!') | |
155 | { | |
156 | chname++; | |
157 | if (!HasPriv(sptr, IsLocalChannel(chname) ? PRIV_FORCE_LOCAL_OPMODE | |
158 | : PRIV_FORCE_OPMODE)) | |
159 | return send_reply(sptr, ERR_NOPRIVILEGES); | |
160 | force = 1; | |
161 | } | |
162 | ||
163 | if (!HasPriv(sptr, | |
164 | IsLocalChannel(chname) ? PRIV_LOCAL_OPMODE : PRIV_OPMODE)) | |
165 | return send_reply(sptr, ERR_NOPRIVILEGES); | |
166 | ||
167 | if (!IsChannelName(chname) || !(chptr = FindChannel(chname))) | |
168 | return send_reply(sptr, ERR_NOSUCHCHANNEL, chname); | |
169 | ||
170 | if (!force && (qreason = find_quarantine(chptr->chname))) | |
171 | return send_reply(sptr, ERR_QUARANTINED, chptr->chname, qreason); | |
172 | ||
173 | modebuf_init(&mbuf, sptr, cptr, chptr, | |
174 | (MODEBUF_DEST_CHANNEL | /* Send MODE to channel */ | |
175 | MODEBUF_DEST_SERVER | /* And to server */ | |
176 | MODEBUF_DEST_OPMODE | /* Use OPMODE */ | |
177 | MODEBUF_DEST_HACK4 | /* Generate a HACK(4) notice */ | |
178 | MODEBUF_DEST_LOG)); /* Log the mode changes to OPATH */ | |
179 | ||
180 | mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, | |
181 | (MODE_PARSE_SET | /* set the modes on the channel */ | |
182 | MODE_PARSE_FORCE), /* And force them to be accepted */ | |
183 | NULL); | |
184 | ||
185 | modebuf_flush(&mbuf); /* flush the modes */ | |
186 | ||
187 | return 0; | |
188 | } | |
189 |