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_reply.h"
33 #include "ircd_string.h"
53 struct Motd* freelist;
56 /* Create a struct Motd and initialize it */
58 motd_create(const char *hostmask, const char *path, int maxcount)
61 int type = MOTD_UNIVERSAL;
66 if (hostmask) { /* figure out if it's a class or hostmask */
67 type = MOTD_CLASS; /* all digits, convert to class */
69 for (s = hostmask; *s; s++)
70 if (!IsDigit(*s)) { /* not a digit, not a class... */
76 /* allocate memory and initialize the structure */
77 if (MotdList.freelist) {
78 tmp = MotdList.freelist;
79 MotdList.freelist = tmp->next;
81 tmp = (struct Motd *)MyMalloc(sizeof(struct Motd));
88 DupString(tmp->id.hostmask, hostmask);
92 tmp->id.class = atoi(hostmask);
96 DupString(tmp->path, path);
97 tmp->maxcount = maxcount;
103 /* This function reads a motd out of a file (if needed) and caches it */
104 static struct MotdCache *
105 motd_cache(struct Motd *motd)
108 struct MotdCache* cache;
110 char line[MOTD_LINESIZE + 2]; /* \r\n */
115 assert(0 != motd->path);
120 /* gotta read in the file, now */
121 if (!(file = fbopen(motd->path, "r"))) {
122 Debug((DEBUG_ERROR, "Couldn't open \"%s\": %s", motd->path,
127 /* need the file's modification time */
128 if (-1 == fbstat(&sb, file)) {
133 /* Ok, allocate a structure; we'll realloc later to trim memory */
134 cache = (struct MotdCache *)MyMalloc(sizeof(struct MotdCache) +
135 (MOTD_LINESIZE * (MOTD_MAXLINES - 1)));
137 cache->modtime = *localtime((time_t *) &sb.st_mtime); /* store modtime */
140 while (cache->count < motd->maxcount && fbgets(line, sizeof(line), file)) {
141 /* copy over line, stopping when we overflow or hit line end */
142 for (tmp = line, i = 0;
143 i < (MOTD_LINESIZE - 1) && *tmp && *tmp != '\r' && *tmp != '\n';
145 cache->motd[cache->count][i] = *tmp;
146 cache->motd[cache->count][i] = '\0';
151 fbclose(file); /* close the file */
153 /* trim memory usage a little */
154 motd->cache = (struct MotdCache *)MyRealloc(cache, sizeof(struct MotdCache) +
156 (cache->count - 1)));
162 motd_decache(struct Motd *motd)
164 struct MotdCache* cache;
168 if (!(cache = motd->cache)) /* we can be called for records with no cache */
171 motd->cache = 0; /* zero the cache */
173 MyFree(cache); /* very simple for a reason... */
176 /* This function destroys a struct Motd, destroying the cache if needed */
178 motd_destroy(struct Motd *motd)
182 MyFree(motd->path); /* we always must have a path */
183 if (motd->type == MOTD_HOSTMASK) /* free a host mask if any */
184 MyFree(motd->id.hostmask);
185 if (motd->cache) /* drop the cache */
188 motd->next = MotdList.freelist;
189 MotdList.freelist = motd;
192 /* We use this routine to look up the struct Motd to send to any given
196 motd_lookup(struct Client *cptr)
203 if (!MyUser(cptr)) /* not my user, always return remote motd */
204 return MotdList.remote;
206 class = get_client_class(cptr);
208 /* check the T-lines first */
209 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
210 if (ptr->type == MOTD_CLASS && ptr->id.class == class)
212 else if (ptr->type == MOTD_HOSTMASK &&
213 !match(ptr->id.hostmask, cli_sockhost(cptr)))
217 return MotdList.local; /* Ok, return the default motd */
220 /* Here is a routine that takes a MotdCache and sends it to a user */
222 motd_forward(struct Client *cptr, struct MotdCache *cache)
228 if (!cache) /* no motd to send */
229 return send_reply(cptr, ERR_NOMOTD);
232 send_reply(cptr, RPL_MOTDSTART, cli_name(&me));
233 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":- %d-%d-%d %d:%02d",
234 cache->modtime.tm_year + 1900, cache->modtime.tm_mon + 1,
235 cache->modtime.tm_mday, cache->modtime.tm_hour,
236 cache->modtime.tm_min);
238 for (i = 0; i < cache->count; i++)
239 send_reply(cptr, RPL_MOTD, cache->motd[i]);
241 return send_reply(cptr, RPL_ENDOFMOTD); /* end */
244 /* This routine is used to send the MOTD off to a user. */
246 motd_send(struct Client* cptr)
250 return motd_forward(cptr, motd_cache(motd_lookup(cptr)));
253 /* This routine sends the MOTD or something to newly-registered users. */
255 motd_signon(struct Client* cptr)
257 struct MotdCache *cache;
259 cache = motd_cache(motd_lookup(cptr));
262 send_reply(cptr, RPL_MOTDSTART, cli_name(&me));
263 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":\002Type /MOTD to read the AUP "
264 "before continuing using this service.\002");
265 send_reply(cptr, SND_EXPLICIT | RPL_MOTD, ":The message of the day was last "
266 "changed: %d-%d-%d %d:%d", cache->modtime.tm_year + 1900,
267 cache->modtime.tm_mon + 1, cache->modtime.tm_mday,
268 cache->modtime.tm_hour, cache->modtime.tm_min);
269 send_reply(cptr, RPL_ENDOFMOTD);
271 motd_forward(cptr, cache);
275 /* motd_recache causes all the MOTD caches to be cleared */
281 motd_decache(MotdList.local); /* decache local and remote MOTDs */
282 motd_decache(MotdList.remote);
284 for (tmp = MotdList.other; tmp; tmp = tmp->next) /* now all the others */
287 /* now recache local and remote MOTDs */
288 motd_cache(MotdList.local);
289 motd_cache(MotdList.remote);
292 /* motd_init initializes the MOTD routines, including reading the
293 * ircd.motd and remote.motd files into cache
298 MotdList.local = motd_create(0, MPATH, MOTD_MAXLINES); /* init local */
299 motd_cache(MotdList.local); /* and cache it */
301 MotdList.remote = motd_create(0, RPATH, MOTD_MAXREMOTE); /* init remote */
302 motd_cache(MotdList.remote); /* and cache it */
304 MotdList.other = 0; /* no T-lines processed yet */
307 /* This routine adds a MOTD */
309 motd_add(const char *hostmask, const char *path)
313 tmp = motd_create(hostmask, path, MOTD_MAXLINES); /* create the motd */
315 tmp->next = MotdList.other; /* link it into the list */
316 MotdList.other = tmp;
319 /* This routine clears the list of MOTDs */
323 struct Motd *ptr, *next;
325 motd_decache(MotdList.local); /* decache local and remote MOTDs */
326 motd_decache(MotdList.remote);
328 if (MotdList.other) /* destroy other MOTDs */
329 for (ptr = MotdList.other; ptr; ptr = next) {
336 /* now recache local and remote MOTDs */
337 motd_cache(MotdList.local);
338 motd_cache(MotdList.remote);
341 /* This is called to report T-lines */
343 motd_report(struct Client *to)
347 for (ptr = MotdList.other; ptr; ptr = ptr->next) {
348 if (ptr->type == MOTD_CLASS) /* class requires special handling */
349 send_reply(to, SND_EXPLICIT | RPL_STATSTLINE, "T %d %s", ptr->id.class,
351 else if (ptr->type == MOTD_HOSTMASK)
352 send_reply(to, RPL_STATSTLINE, 'T', ptr->id.hostmask, ptr->path);