2 * charybdis: A slightly useful ircd.
3 * supported.c: isupport (005) numeric
5 * Copyright (C) 2006 Jilles Tjoelker
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
11 * 1.Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2.Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3.The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
28 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 /* From the old supported.h which is
33 * Copyright (C) 1996-2002 Hybrid Development Team
34 * Copyright (C) 2002-2004 ircd-ratbox development team
37 * - from mirc's versions.txt
39 * mIRC now supports the numeric 005 tokens: CHANTYPES=# and
40 * PREFIX=(ohv)@%+ and can handle a dynamic set of channel and
43 * mIRC assumes that @ is supported on all networks, any mode
44 * left of @ is assumed to have at least equal power to @, and
45 * any mode right of @ has less power.
47 * mIRC has internal support for @%+ modes.
49 * $nick() can now handle all mode letters listed in PREFIX.
51 * Also added support for CHANMODES=A,B,C,D token (not currently
52 * supported by any servers), which lists all modes supported
53 * by a channel, where:
55 * A = modes that take a parameter, and add or remove nicks
56 * or addresses to a list, such as +bIe for the ban,
57 * invite, and exception lists.
59 * B = modes that change channel settings, but which take
60 * a parameter when they are set and unset, such as
63 * C = modes that change channel settings, but which take
64 * a parameter only when they are set, such as +l N,
67 * D = modes that change channel settings, such as +imnpst
68 * and take no parameters.
70 * All unknown/unlisted modes are treated as type D.
80 #include "supported.h"
84 rb_dlink_list isupportlist
;
89 const char *(*func
)(const void *);
95 add_isupport(const char *name
, const char *(*func
)(const void *), const void *param
)
97 struct isupportitem
*item
;
99 item
= rb_malloc(sizeof(struct isupportitem
));
103 rb_dlinkAddTail(item
, &item
->node
, &isupportlist
);
107 change_isupport(const char *name
, const char *(*func
)(const void *), const void *param
)
110 struct isupportitem
*item
;
111 const void *oldvalue
= NULL
;
113 RB_DLINK_FOREACH(ptr
, isupportlist
.head
)
117 if (!strcmp(item
->name
, name
))
119 oldvalue
= item
->param
;
121 // item->name = name;
133 delete_isupport(const char *name
)
135 rb_dlink_node
*ptr
, *next_ptr
;
136 struct isupportitem
*item
;
138 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, isupportlist
.head
)
142 if (!strcmp(item
->name
, name
))
144 rb_dlinkDelete(ptr
, &isupportlist
);
152 show_isupport(struct Client
*client_p
)
155 struct isupportitem
*item
;
159 unsigned int nchars
, nparams
;
162 extra_space
= strlen(client_p
->name
);
164 if (!MyClient(client_p
) && extra_space
< 9)
166 /* :<me.name> 005 <nick> <params> :are supported by this server */
167 /* form_str(RPL_ISUPPORT) is %s :are supported by this server */
168 extra_space
+= strlen(me
.name
) + 1 + strlen(form_str(RPL_ISUPPORT
));
170 nchars
= extra_space
, nparams
= 0, buf
[0] = '\0';
171 RB_DLINK_FOREACH(ptr
, isupportlist
.head
)
174 value
= (*item
->func
)(item
->param
);
177 l
= strlen(item
->name
) + (EmptyString(value
) ? 0 : 1 + strlen(value
));
178 if (nchars
+ l
+ (nparams
> 0) >= sizeof buf
|| nparams
+ 1 > 12)
180 sendto_one_numeric(client_p
, RPL_ISUPPORT
, form_str(RPL_ISUPPORT
), buf
);
181 nchars
= extra_space
, nparams
= 0, buf
[0] = '\0';
184 rb_strlcat(buf
, " ", sizeof buf
), nchars
++;
185 rb_strlcat(buf
, item
->name
, sizeof buf
);
186 if (!EmptyString(value
))
188 rb_strlcat(buf
, "=", sizeof buf
);
189 rb_strlcat(buf
, value
, sizeof buf
);
195 sendto_one_numeric(client_p
, RPL_ISUPPORT
, form_str(RPL_ISUPPORT
), buf
);
199 isupport_intptr(const void *ptr
)
202 snprintf(buf
, sizeof buf
, "%d", *(const int *)ptr
);
207 isupport_boolean(const void *ptr
)
210 return *(const int *)ptr
? "" : NULL
;
214 isupport_string(const void *ptr
)
217 return (const char *)ptr
;
221 isupport_stringptr(const void *ptr
)
223 return *(char * const *)ptr
;
227 isupport_umode(const void *ptr
)
232 return ConfigFileEntry
.oper_only_umodes
&
233 user_modes
[(unsigned char)*str
] ? NULL
: str
;
237 isupport_chanmodes(const void *ptr
)
239 static char result
[80];
241 snprintf(result
, sizeof result
, "%s%sbq,k,%slj,%s",
242 ConfigChannel
.use_except
? "e" : "",
243 ConfigChannel
.use_invex
? "I" : "",
244 ConfigChannel
.use_forward
? "f" : "",
250 isupport_chantypes(const void *ptr
)
252 return ConfigChannel
.disable_local_channels
? "#" : "&#";
256 isupport_chanlimit(const void *ptr
)
258 static char result
[30];
260 snprintf(result
, sizeof result
, "%s:%i",
261 ConfigChannel
.disable_local_channels
? "#" : "&#", ConfigChannel
.max_chans_per_user
);
266 isupport_maxlist(const void *ptr
)
268 static char result
[30];
270 snprintf(result
, sizeof result
, "bq%s%s:%i",
271 ConfigChannel
.use_except
? "e" : "",
272 ConfigChannel
.use_invex
? "I" : "",
273 ConfigChannel
.max_bans
);
278 isupport_targmax(const void *ptr
)
280 static char result
[200];
282 snprintf(result
, sizeof result
, "NAMES:1,LIST:1,KICK:1,WHOIS:1,PRIVMSG:%d,NOTICE:%d,ACCEPT:,MONITOR:",
283 ConfigFileEntry
.max_targets
,
284 ConfigFileEntry
.max_targets
);
289 isupport_extban(const void *ptr
)
292 static char result
[200];
294 p
= get_extban_string();
297 snprintf(result
, sizeof result
, "$,%s", p
);
302 isupport_nicklen(const void *ptr
)
304 static char result
[200];
306 snprintf(result
, sizeof result
, "%u", ConfigFileEntry
.nicklen
- 1);
313 static int maxmodes
= MAXMODEPARAMS
;
314 static int channellen
= LOC_CHANNELLEN
;
315 static int topiclen
= TOPICLEN
;
316 static int maxnicklen
= NICKLEN
- 1;
318 add_isupport("CHANTYPES", isupport_chantypes
, NULL
);
319 add_isupport("EXCEPTS", isupport_boolean
, &ConfigChannel
.use_except
);
320 add_isupport("INVEX", isupport_boolean
, &ConfigChannel
.use_invex
);
321 add_isupport("CHANMODES", isupport_chanmodes
, NULL
);
322 add_isupport("CHANLIMIT", isupport_chanlimit
, NULL
);
323 add_isupport("PREFIX", isupport_string
, "(ov)@+");
324 add_isupport("MAXLIST", isupport_maxlist
, NULL
);
325 add_isupport("MODES", isupport_intptr
, &maxmodes
);
326 add_isupport("NETWORK", isupport_stringptr
, &ServerInfo
.network_name
);
327 add_isupport("STATUSMSG", isupport_string
, "@+");
328 add_isupport("CALLERID", isupport_umode
, "g");
329 add_isupport("CASEMAPPING", isupport_string
, "rfc1459");
330 add_isupport("NICKLEN", isupport_nicklen
, NULL
);
331 add_isupport("MAXNICKLEN", isupport_intptr
, &maxnicklen
);
332 add_isupport("CHANNELLEN", isupport_intptr
, &channellen
);
333 add_isupport("TOPICLEN", isupport_intptr
, &topiclen
);
334 add_isupport("DEAF", isupport_umode
, "D");
335 add_isupport("TARGMAX", isupport_targmax
, NULL
);
336 add_isupport("EXTBAN", isupport_extban
, NULL
);
337 add_isupport("CLIENTVER", isupport_string
, "3.0");