2 * IRC - Internet Relay Chat, ircd/motd.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
5 * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
7 * See file AUTHORS in IRC package for additional names of
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)
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.
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.
31 #include "ircd_alloc.h"
32 #include "ircd_features.h"
33 #include "ircd_reply.h"
34 #include "ircd_string.h"
54 struct Motd* freelist;
57 /* Create a struct Motd and initialize it */
59 motd_create(const char *hostmask, const char *path, int maxcount)
62 int type = MOTD_UNIVERSAL;
67 if (hostmask) { /* figure out if it's a class or hostmask */
68 type = MOTD_CLASS; /* all digits, convert to class */
70 for (s = hostmask; *s; s++)
71 if (!IsDigit(*s)) { /* not a digit, not a class... */
77 /* allocate memory and initialize the structure */
78 if (MotdList.freelist) {
79 tmp = MotdList.freelist;
80 MotdList.freelist = tmp->next;
82 tmp = (struct Motd *)MyMalloc(sizeof(struct Motd));
89 DupString(tmp->id.hostmask, hostmask);
93 tmp->id.class = atoi(hostmask);
97 DupString(tmp->path, path);
98 tmp->maxcount = maxcount;
104 /* This function reads a motd out of a file (if needed) and caches it */
105 static struct MotdCache *
106 motd_cache(struct Motd *motd)
109 struct MotdCache* cache;
111 char line[MOTD_LINESIZE + 2]; /* \r\n */
116 assert(0 != motd->path);
121 /* gotta read in the file, now */
122 if (!(file = fbopen(motd->path, "r"))) {
123 Debug((DEBUG_ERROR, "Couldn't open \"%s\": %s", motd->path,
128 /* need the file's modification time */
129 if (-1 == fbstat(&sb, file)) {
134 /* Ok, allocate a structure; we'll realloc later to trim memory */
135 cache = (struct MotdCache *)MyMalloc(sizeof(struct MotdCache) +
136 (MOTD_LINESIZE * (MOTD_MAXLINES - 1)));
138 cache->modtime = *localtime((time_t *) &sb.st_mtime); /* store modtime */
141 while (cache->count < motd->maxcount && fbgets(line, sizeof(line), file)) {
142 /* copy over line, stopping when we overflow or hit line end */
143 for (tmp = line, i = 0;
144 i < (MOTD_LINESIZE - 1) && *tmp && *tmp != '\r' && *tmp != '\n';
146 cache->motd[cache->count][i] = *tmp;
147 cache->motd[cache->count][i] = '\0';
152 fbclose(file); /* close the file */
154 /* trim memory usage a little */
155 motd->cache = (struct MotdCache *)MyRealloc(cache, sizeof(struct MotdCache) +
157 (cache->count - 1)));
163 motd_decache(struct Motd *motd)
165 struct MotdCache* cache;
169 if (!(cache = motd->cache)) /* we can be called for records with no cache */
172 motd->cache = 0; /* zero the cache */
174 MyFree(cache); /* very simple for a reason... */
177 /* This function destroys a struct Motd, destroying the cache if needed */
179 motd_destroy(struct Motd *motd)
183 MyFree(motd->path); /* we always must have a path */
184 if (motd->type == MOTD_HOSTMASK) /* free a host mask if any */
185 MyFree(motd->id.hostmask);
186 if (motd->cache) /* drop the cache */
189 motd->next = MotdList.freelist;
190 MotdList.freelist = motd;
193 /* We use this routine to look up the struct Motd to send to any given
197 motd_lookup(struct Client *cptr)
204 if (!MyUser(cptr)) /* not my user, always return remote motd */
205 return MotdList.remote;
207 class = get_client_class(cptr);
209 /* check the T-lines first */
210 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
211 if (ptr->type == MOTD_CLASS && ptr->id.class == class)
213 else if (ptr->type == MOTD_HOSTMASK &&
214 !match(ptr->id.hostmask, cli_sockhost(cptr)))
218 return MotdList.local; /* Ok, return the default motd */
221 /* Here is a routine that takes a MotdCache and sends it to a user */
223 motd_forward(struct Client *cptr, struct MotdCache *cache)
229 if (!cache) /* no motd to send */
230 return send_reply(cptr, ERR_NOMOTD);
233 send_reply(cptr, RPL_MOTDSTART, cli_name(&me));
234 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":- %d-%d-%d %d:%02d",
235 cache->modtime.tm_year + 1900, cache->modtime.tm_mon + 1,
236 cache->modtime.tm_mday, cache->modtime.tm_hour,
237 cache->modtime.tm_min);
239 for (i = 0; i < cache->count; i++)
240 send_reply(cptr, RPL_MOTD, cache->motd[i]);
242 return send_reply(cptr, RPL_ENDOFMOTD); /* end */
245 /* This routine is used to send the MOTD off to a user. */
247 motd_send(struct Client* cptr)
251 return motd_forward(cptr, motd_cache(motd_lookup(cptr)));
254 /* This routine sends the MOTD or something to newly-registered users. */
256 motd_signon(struct Client* cptr)
258 struct MotdCache *cache;
260 cache = motd_cache(motd_lookup(cptr));
262 if (!feature_bool(FEAT_NODEFAULTMOTD))
263 motd_forward(cptr, cache);
265 send_reply(cptr, RPL_MOTDSTART, cli_name(&me));
266 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":\002Type /MOTD to read the "
267 "AUP before continuing using this service.\002");
268 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":The message of the day was "
269 "last changed: %d-%d-%d %d:%d", cache->modtime.tm_year + 1900,
270 cache->modtime.tm_mon + 1, cache->modtime.tm_mday,
271 cache->modtime.tm_hour, cache->modtime.tm_min);
272 send_reply(cptr, RPL_ENDOFMOTD);
276 /* motd_recache causes all the MOTD caches to be cleared */
282 motd_decache(MotdList.local); /* decache local and remote MOTDs */
283 motd_decache(MotdList.remote);
285 for (tmp = MotdList.other; tmp; tmp = tmp->next) /* now all the others */
288 /* now recache local and remote MOTDs */
289 motd_cache(MotdList.local);
290 motd_cache(MotdList.remote);
293 /* motd_init initializes the MOTD routines, including reading the
294 * ircd.motd and remote.motd files into cache
299 MotdList.local = motd_create(0, feature_str(FEAT_MPATH), MOTD_MAXLINES);
300 motd_cache(MotdList.local); /* init local and cache it */
302 MotdList.remote = motd_create(0, feature_str(FEAT_RPATH), MOTD_MAXREMOTE);
303 motd_cache(MotdList.remote); /* init remote and cache it */
305 MotdList.other = 0; /* no T-lines processed yet */
308 /* This routine adds a MOTD */
310 motd_add(const char *hostmask, const char *path)
314 tmp = motd_create(hostmask, path, MOTD_MAXLINES); /* create the motd */
316 tmp->next = MotdList.other; /* link it into the list */
317 MotdList.other = tmp;
320 /* This routine clears the list of MOTDs */
324 struct Motd *ptr, *next;
326 motd_decache(MotdList.local); /* decache local and remote MOTDs */
327 motd_decache(MotdList.remote);
329 if (MotdList.other) /* destroy other MOTDs */
330 for (ptr = MotdList.other; ptr; ptr = next) {
337 /* now recache local and remote MOTDs */
338 motd_cache(MotdList.local);
339 motd_cache(MotdList.remote);
342 /* This is called to report T-lines */
344 motd_report(struct Client *to)
348 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
349 if (ptr->type == MOTD_CLASS) /* class requires special handling */
350 send_reply(to, SND_EXPLICIT | RPL_STATSTLINE, "T %d %s", ptr->id.class,
352 else if (ptr->type == MOTD_HOSTMASK)
353 send_reply(to, RPL_STATSTLINE, 'T', ptr->id.hostmask, ptr->path);